Java 8 Interview Questions Preparation Course


Java 8 is one of the major releases from Java with features like Streams, Lambdas etc. A lot of companies are looking for software developers proficient in Java 8 features.

This course contains basic to expert level Java 8 interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time.

We have compiled this course after attending dozens of technical interviews in top-notch companies like- Google, Netflix, Amazon etc.

Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Java 8 features.

Join the course for just $10!!

What is the biggest benefit of this course to me?

Finally, the biggest benefit of this course is that you will be able to demand higher salary in your next job interview.

It is good to learn Java 8 for theoretical benefits. But if you do not know how to handle interview questions on Java 8, you can not convert your Java 8 knowledge into higher salary.

What are the topics covered in this course?

We cover a wide range of topics in this course. We have questions on Java 8 best practices, Security, Pact, Bulkhead Design Pattern etc.

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for Java 8 interview questions. We have already compiled the list of the most popular and the latest Java 8 Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in Java 8 topic.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  1. What are the new features released in Java 8?
  2. What are the main benefits of new features introduced in Java 8?
  3. What is a Lambda expression in Java 8?
  4. What are the three main parts of a Lambda expression in Java?
  5. What is the data type of a Lambda expression?
  6. What is the meaning of following lambda expression?
  7. Why did Oracle release a new version of Java like Java 8?
  8. What are the advantages of a lambda expression?
  9. What is a Functional interface in Java 8?
  10. What is a Single Abstract Method (SAM) interface in Java 8?
  11. How can we define a Functional interface in Java 8?
  12. Why do we need Functional interface in Java?
  13. Is it mandatory to use @FunctionalInterface annotation to define a Functional interface in Java 8?
  14. What are the differences between Collection and Stream API in Java 8?
  15. What are the main uses of Stream API in Java 8?
  16. What are the differences between Intermediate and Terminal Operations in Java 8 Streams?
  17. What is a Spliterator in Java 8?
  18. What are the differences between Iterator and Spliterator in Java 8?
  19. What is Type Inference in Java 8?
  20. Does Java 7 support Type Inference?
  21. How does Internal Iteration work in Java 8?
  22. What are the main differences between Internal and External Iterator?
  23. What are the main advantages of Internal Iterator over External Iterator in Java 8?
  24. What are the applications in which we should use Internal Iteration?
  25. What is the main disadvantage of Internal Iteration over External Iteration?
  26. Can we provide implementation of a method in a Java Interface?
  27. What is a Default Method in an Interface?
  28. Why do we need Default method in a Java 8 Interface?
  29. What is the purpose of a Static method in an Interface in Java 8?
  30. What are the core ideas behind the Date/Time API of Java 8?
  31. What are the advantages of new Date and Time API in Java 8 over old Date API?
  32. What are the main differences between legacy Date/Time API in Java and Date/Time API of Java 8?
  33. How can we get duration between two dates or time in Java 8?
  34. What is the new method family introduced in Java 8 for processing of Arrays on multi core machines?
  35. How does Java 8 solve Diamond problem of Multiple Inheritance?
  36. What are the differences between Predicate, Supplier and Consumer in Java 8?
  37. Is it possible to have default method definition in an interface without marking it with default keyword?
  38. Can we create a class that implements two Interfaces with default methods of same name and signature?
  39. How Java 8 supports Multiple Inheritance?
  40. Can we access a static method of an interface by using reference of the interface?
  41. How can you get the name of Parameter in Java by using reflection?
  42. What is Optional in Java 8?
  43. What are the uses of Optional?
  44. Which method in Optional provides the fallback mechanism in case of null value?
  45. How can we get current time by using Date/Time API of Java 8?
  46. Is it possible to define a static method in an Interface?
  47. How can we analyze the dependencies in Java classes and packages?
  48. What are the new JVM arguments introduced by Java 8?
  49. What are the popular annotations introduced in Java 8?
  50. What is a StringJoiner in Java 8?
  51. What is the type of a Lambda expression in Java 8?
  52. What is the target type of a lambda expression ?
  53. What are the main differences between an interface with default method and an abstract class in Java 8?

What are the requirements?

  1. Some Software Development Experience
  2. Familiar with basic Java

What am I going to get from this course?

  • Learn important concepts of Java 8
  • Understand Java 8 features
  • Answer interview questions on Java 8
  • Demand higher salary or promotion based on the knowledge gained

What is the target audience?

  • Software Engineer, Sr. Software Engineer, Member Technical Staff, Expert
  • DevOps Engineer, Operations Engineer
  • Software Architect, Development Manager, Director
  • Anyone who wants to learn Java 8 features

Join the course for just $10!!

SQL Tricky Interview Questions Preparation Course


This course contains tricky and nasty SQL interview questions that an interviewer asks. It is a compilation of advanced SQL interview questions after attending dozens of technical interviews in top-notch companies like- Oracle, Google, Ebay, Amazon etc. Each question is accompanied with an answer so that you can prepare for job interview in short time.

Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of SQL concepts.

Join the course now for just $10!.

What is the biggest benefit of this course to me?

The biggest benefit of this course is that you will be able to handle interview questions on SQL. I will explain you questions and their answers in detail. So you will be well prepared for your next career jump.

What are the topics covered in this course?

We cover a wide range of topics in this course. We have questions on SQL group by, date operations etc.

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for tricky SQL interview questions. We have already compiled the list of the most popular and the latest SQL Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in SQL language.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What happens if SQL tricky questions list changes in future?

From time to time, we keep adding more questions to this course. Our aim is to keep you always updated with the latest interview questions on SQL.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  1. Write SQL query to get the second highest salary among all Employees?
  2. How can we retrieve alternate records from a table in Oracle?
  3. Write a SQL Query to find Max salary and Department name from each department.
  4. Write a SQL query to find records in Table A that are not in Table B without using NOT IN operator.
  5. What is the result of following query?
  6. Write SQL Query to find employees that have same name and email.
  7. Write a SQL Query to find Max salary from each department.
  8. Write SQL query to get the nth highest salary among all Employees.
  9. How can you find 10 employees with Odd number as Employee ID?
  10. Write a SQL Query to get the names of employees whose date of birth is between 01/01/1990 to 31/12/2000.
  11. Write a SQL Query to get the Quarter from date.
  12. Write Query to find employees with duplicate email.
  13. Is it safe to use ROWID to locate a record in Oracle SQL queries?
  14. What is a Pseudocolumn?
  15. What are the reasons for de-normalizing the data?
  16. What is the feature in SQL for writing If/Else statements?
  17. What is the difference between DELETE and TRUNCATE in SQL?
  18. What is the difference between DDL and DML commands in SQL?
  19. Why do we use Escape characters in SQL queries?
  20. What is the difference between Primary key and Unique key in SQL?
  21. What is the difference between INNER join and OUTER join in SQL?
  22. What is the difference between Left OUTER Join and Right OUTER Join?
  23. What is the datatype of ROWID?
  24. What is the difference between where clause and having clause?
  25. What is cardinality in SQL?
  26. What is Merge statement in SQL?
  27. What is the difference between UNION and UNION ALL?
  28. What will be the result of following query?
  29. What is the wrong with this SQL query?
  30. What is wrong with this query to get the list of employees not in Dept 1?
  31. What is the use of Execution plan in SQL?
  32. How many records are returned by following query?
  33. Write a query for this problem?
  34. Write SQL Query to get Employee Name, Manager ID and number of employees in the department?
  35. Write SQL Query to find duplicate rows in a database?
  36. Write SQL query to delete duplicate rows in a table?
  37. Why is the difference between NVL and NVL2 functions in SQL?
  38. What are ACID properties in a SQL transaction?
  39. What is the main difference between RANK and DENSE_RANK functions in Oracle?
  40. What is the use of WITH clause in SQL?
  41. Which SQL feature can be used to view data in a table sequentially?
  42. Write SQL Query to get Student Name and number of Students in same grade.
  43. Write SQL Query to get the list of grades with total score more than average score.
  44. What are the differences between CASE and DECODE in SQL?
  45. Write a Query to get Unique names of products without using DISTINCT keyword.
  46. Write a SQL query to maximum Zipcode from a table without using MAX or MIN aggregate functions.
  47. Given a list of student names and grade. Write a query to print a comma separated list of student names in a grade.
  48. What is the difference between Correlated and Un-correlated Sub query?
  49. Given an Employee table with Manager_ID as column, print First name, Manager ID and Level of employees in Organization Structure?
  50. Write a query to create an empty table from an existing table?

What are the requirements?

  1. Familiar with basic SQL
  2. Able to run basic SQL query

What am I going to get from this course?

  1. Learn important concepts of SQL
  2. Handle tricky SQL interview questions
  3. Implement complex SQL queries
  4. Answer popular interview questions on SQL
  5. Demand higher salary or promotion based on the knowledge gained

What is the target audience?

  • Data Engineer, DBA
  • Software Engineer, Sr. Software Engineer, Member Technical Staff, Expert
  • Operations Engineer
  • Business
      Analyst
    1. Anyone who wants to learn SQL
    2. Anyone who wants to prepare for SQL interview questions

Join the course now for just $10!.

Unix Interview Questions Preparation Course


This course contains Top 50 Unix interview questions that are asked in a technical interview. The focus is on commands and concepts inside Unix. It is an important topic for a software developer to know about Unix.

It is a compilation of advanced Unix interview questions after attending dozens of technical interviews in top-notch companies like- Oracle, Google, Ebay, Amazon etc. Each question is accompanied with an answer so that you can prepare for job interview in short time.

Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Unix concepts.

Join the Unix Interview Questions Preparation Course now.

What are the topics covered in this course?

We cover a wide range of topics in this course. We have questions on Unix commands, concepts etc.

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for Unix interview questions. We have already compiled the list of the most popular and the latest Unix Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in Unix topic.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  1. How will you remove all files in current directory? Including the files that are two levels down in a sub-directory.
  2. What is the difference between the –v and –x options in Bash shell scripts?
  3. What is a Filter in Unix command?
  4. What is Kernel in Unix operating system?
  5. What is a Shell in Unix OS?
  6. What are the different shells in Unix that you know about?
  7. What is the first character of the output in ls –l command ?
  8. What is the difference between Multi-tasking and Multi-user environment?
  9. What is an Inode in Unix?
  10. What is the difference between absolute path and relative path in Unix file system?
  11. What are the main responsibilities of a Unix Shell?
  12. What is a Shell variable?
  13. What are the important Shell variables that are initialized on starting a Shell?
  14. How will you set the value of Environment variables in Unix?
  15. What is the difference between a System Call and a library function?
  16. What are the networking commands in Unix that you have used?
  17. What is a Pipeline in Unix?
  18. What is the use of tee command in Unix?
  19. How will you count the number of lines and words in a file in Unix?
  20. What is Bash shell?
  21. How will you search for a name in Unix files?
  22. What are the popular options of grep command in Unix?
  23. What is the difference between whoami and who am i commands in Unix?
  24. What is a Superuser in Unix?
  25. How will you check the information about a process in Unix?
  26. What is the use of more command with cat command?
  27. What are the File modes in Unix?
  28. We wrote a shell script in Unix but it is not doing anything. What could be the reason?
  29. What is the significance of 755 in chmod 755 command?
  30. How can we run a process in background in Unix? How can we kill a process running in background?
  31. How will you create a read only file in Unix?
  32. How does alias work in Unix?
  33. How can you redirect I/O in Unix?
  34. What are the main steps taken by a Unix Shell for processing a command?
  35. What is a Sticky bit in Unix?
  36. What are the different outputs from Kill command in Unix?
  37. How will you customize your environment in Unix?
  38. What are the popular commands for user management in Unix?
  39. How will you debug a shell script in Unix?
  40. What is the difference between a Zombie and Orphan process in Unix?
  41. How will you check if a remote host is still alive?
  42. How will you get the last executed command in Unix?
  43. What is the meaning of “2>&1” in a Unix shell?
  44. How will you find which process is taking most CPU time in Unix?
  45. What is the difference between Soft link and Hard link in Unix?
  46. How will you find which processes are using a file?
  47. What is the purpose of nohup in Unix?
  48. How will you remove blank lines from a file in Unix?
  49. How will you find the remote hosts that are connecting to your system on a specific port in Unix?
  50. What is xargs in Unix?

Amazon Web Services Interview Questions Preparation Course

We have prepared an excellent course on Amazon Web Services (AWS) interview preparation on Udemy.com.

AWS Interview Preparation Course on Udemy.com

Amazon Web Service (AWS) is one of the fastest growing field in technology world. This course is designed to help you achieve your goals in AWS field. Engineers with AWS knowledge may get more salary than others with similar qualifications without AWS knowledge.

In this course, you will learn how to apply AWS technology in Software Design and Development. I will explain you what are the tools in AWS to build a highly scalable, resilient system.

What will I learn in this course?

You will also learn the latest cloud architecture in this course.

Finally, the biggest benefit of this course is that you will be able to demand higher salary in your next job interview.

It is good to learn AWS for theoretical benefits. But if you do not know how to handle interview questions on AWS, you can not convert your AWS knowledge into higher salary.

We cover a wide range of topics in this course. We have questions on Simple Storage Service S3, Elastic Compute Cloud EC2, Elastic Load Balancing ELB, CloudFront, DynamoDB, CloudWatch, ElastiCache and Lambda.

From time to time, we keep adding more topics to this course. Our aim is to keep you always updated with the latest interview questions in AWS.

What are the requirements?

  • Basic Knowledge of popular AWS products
  • Familiar with Software design concepts

What am I going to get from this course?

  • Confidently handle AWS Technical Interview Questions
  • Learn Best practices of AWS products
  • Apply for AWS positions in technology
  • Gain deep knowledge of AWS design concepts
  • Demand higher salary for AWS jobs

What is the target audience?

  • Software Engineer
  • Software Architect
  • Development Manager
  • DevOps Engineer
  • QA Engineer
  • Anyone applying for AWS Jobs

View the AWS Interview Preparation course on Udemy

Cloud Computing Interview Questions Preparation Course

Cloud Computing is the latest trend in Software Architecture. This course covers the important questions on Cloud Computing architecture that may be asked in technical interview for Software professionals.

Many fortune 500 organizations use Cloud Computing. Therefore, Cloud Computing is also a very important topic in technical interview. This course contains basic to expert level Cloud Computing interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time.

Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Cloud Computing concepts.

Join the Cloud Computing Interview Preparation Course for Special Discount today!!

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for Cloud Computing interview questions. We have already compiled the list of the most popular and the latest Cloud Computing Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in Cloud Computing topic.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  1. What are the benefits of Cloud Computing?
  2. What is On-demand computing in Cloud Computing?
  3. What are the different layers of Cloud computing?
  4. What resources are provided by Infrastructure as a Service (IAAS) provider?
  5. What is the benefit of Platform as a Service?
  6. What are the main advantages of PaaS?
  7. What is the main disadvantage of PaaS?
  8. What are the different deployment models in Cloud computing?
  9. What is the difference between Scalability and Elasticity?
  10. What is Software as a Service?
  11. What are the different types of Datacenters in Cloud computing?
  12. Explain the various modes of Software as a Service (SaaS) cloud environment?
  13. What are the important things to care about in Security in a cloud environment?
  14. Why do we use API in cloud computing environment?
  15. What are the different areas of Security Management in cloud?
  16. What are the main cost factors of cloud based data center?
  17. How can we measure the cloud-based services?
  18. How a traditional datacenter is different from a cloud environment?
  19. How will you optimize availability of your application in a Cloud environment?
  20. What are the requirements for implementing IaaS strategy in Cloud?
  21. What is the scenario in which public cloud is preferred over private cloud?
  22. Do you think Cloud Computing is a software application or a hardware service?
  23. Why companies now prefer Cloud Computing architecture over Client Server Architecture?
  24. What are the main characteristics of Cloud Computing architecture?
  25. How databases in Cloud computing are different from traditional databases?
  26. What is Virtual Private Network (VPN)?
  27. What are the main components of a VPN?
  28. How will you secure the application data for transport in a cloud environment?
  29. What are the large-scale databases available in Cloud?
  30. What are the options for open source NoSQL database in a Cloud environment?
  31. What are the important points to consider before selecting cloud computing?
  32. What is a System integrator in Cloud computing?
  33. What is virtualization in cloud computing?
  34. What is Eucalyptus in a cloud environment?
  35. What are the main components of Eucalyptus cloud architecture?
  36. What is Auto-scaling in Cloud computing?
  37. What are the benefits of Utility Computing model?
  38. What is a Hypervisor in Cloud Computing?
  39. What are the different types of Hypervisor in Cloud Computing?
  40. Why Type-1 Hypervisor has better performance than Type-2 Hypervisor?
  41. What is CaaS?
  42. How is Cloud computing different from computing for mobile devices?
  43. Why automation of deployment is very important in Cloud architecture?
  44. What are the main components in Amazon Cloud?
  45. What are main components in Google Cloud?
  46. What are the major offerings of Microsoft Azure Cloud?
  47. What are the reasons of popularity of Cloud Computing architecture?
  48. What are the Machine Learning options from Google Cloud?
  49. How will you optimize the Cloud Computing environment?
  50. Do you think Regulations and Legal Compliance is an important aspect of Cloud Computing?

What are the requirements?

Software Development or Operations Experience
Familiarity with Software Applications in an organization

What am I going to get from this course?

Understand Cloud Computing Components and Models
Learn important concepts of Cloud Computing
Understand benefits of Cloud Computing
Answer interview questions on Cloud Computing
Cloud Computing offerings from Google, Amazon and Microsoft
Demand higher salary or promotion based on the knowledge gained

What is the target audience?

Software Engineer, Sr. Software Engineer, Member Technical Staff, Expert
DevOps Engineer, Operations Engineer
Software Architect, Development Manager, Director
Anyone who wants to learn Cloud Computing architecture

Join the Cloud Computing Interview Preparation Course for Special Discount today!!

Microservices Interview Preparation Course


Microservices Architecture is one of the fastest growing software in technology world. Big companies like Amazon, Netflix, Google etc use Microservices based architecture. This course is designed to help you achieve your goals in Microservices field. Software Engineers with Microservices knowledge may get more salary than others with similar qualifications without Microservices knowledge.

In this course, you will learn how to handle interview questions on Microservices technology in Software Design and Development. I will explain you the important concepts of Microservices architecture.

You will also learn the benefits and use cases of Microservices in this course.

Join this Great Course on Udemy today: Microservices Interview Questions

What is the biggest benefit of this course to me?

Finally, the biggest benefit of this course is that you will be able to demand higher salary in your next job interview.

It is good to learn Microservices for theoretical benefits. But if you do not know how to handle interview questions on Microservices, you can not convert your Microservices knowledge into higher salary.

What are the topics covered in this course?

We cover a wide range of topics in this course. We have questions on Microservices best practices, Security, Pact, Bulkhead Design Pattern etc.

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for Microservices interview questions. We have already compiled the list of the most popular and the latest Microservices Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in Microservices architecture.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What happens if Microservices technology changes in future?

From time to time, we keep adding more questions to this course. Our aim is to keep you always updated with the latest interview questions on Microservices.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  • What is a Microservice?
  • What are the benefits of Microservices architecture?
  • What is the role of architect in Microservices architecture?
  • What is the advantage of Microservices architecture over Service Oriented Architecture (SOA)?
  • Is it a good idea to provide a Tailored Service Template for Microservices development in an organization?
  • What are the disadvantages of using Shared libraries approach to decompose a monolith application?
  • What are the characteristics of a Good Microservice?
  • What is Bounded Context?
  • What are the points to remember during integration of Microservices?
  • Is it a good idea for Microservices to share a common database?
  • What is the preferred type of communication between Microservices? Synchronous or Asynchronous?
  • What is the difference between Orchestration and Choreography in Microservices architecture?
  • What are the issues in using REST over HTTP for Microservices?
  • Can we create Microservices as State Machines?
  • What is Reactive Extensions?
  • What is DRY?
  • What is Semantic Versioning?
  • Is it a good idea to build a Microservice or buy a commercial off the shelf software?
  • Why do we break the Monolith software into Microservices?
  • What is Continuous Integration?
  • What is Continuous Delivery?
  • What is Ubiquitous language?
  • What is the benefit of Single Service per Host model in Microservices?
  • What are different types of Tests for Microservices?
  • What is Mike Cohn’s Test Pyramid?
  • What is the difference between Mock or Stub for Microservice tests?
  • How can we eradicate non-determinism in tests?
  • What is a Consumer Driven Contract (CDC)?
  • What is PACT?
  • How can we separate Deployment from Release of Microservices?
  • What is Canary Releasing?
  • What is the difference between Mean Time to Repair (MTTR) and Mean Time between failures (MTBF)?
  • How can we do cross-functional testing?
  • What is a good tool for monitoring multiple services at a time?
  • What is Semantic Monitoring?
  • Why do we use Correlation IDs in Microservices architecture?
  • What is the difference between Authentication and Authorization?
  • How does HTTPS authentication works in Microservices?
  • What are Client certificates?
  • Why some big companies use API keys for providing access to public APIs?
  • What is Confused Deputy Problem in security context?
  • How can we secure Data at Rest in an organization?
  • What are the different points to consider for security in Microservices architecture?
  • What is Conway’s law?
  • What are the important Cross-Functional Requirements to consider during the design of a Microservice?
  • What is a Circuit Breaker pattern in the context of Microservice?
  • What is Bulkhead design pattern?
  • What is Idempotency of a Microservice operation?
  • How can you scale a Database?
  • What is Command Query Responsibility Segregation (CQRS) design pattern?
  • How will you implement Caching in Microservice?
  • What is CAP theorem?
  • How will you implement Service Discovery in Microservices architecture?
  • What is a good tool for documenting the Microservices?
  • In which scenarios, implementing Microservices architecture is not a good idea?
  • What are the major principles of Microservices?

Microservices Interview Questions

Join this Great Course on Udemy today: Microservices Interview Questions

Docker Interview Preparation Course

Docker is one of the fastest growing software in technology world. Till now 4 billion Docker containers have been used. This course is designed to help you achieve your goals in Docker field. Engineers with Docker knowledge may get more salary than others with similar qualifications without Docker knowledge.

In this course, you will learn how to handle interview questions on Docker technology in Software Design and Development. I will explain you the important concepts of Docker and related areas.

Join the Docker Interview Preparation Course today!!

You will also learn the benefits of Docker in this course.

What is the biggest benefit of this course to me?

Finally, the biggest benefit of this course is that you will be able to demand higher salary in your next job interview.

It is good to learn Docker for theoretical benefits. But if you do not know how to handle interview questions on Docker, you can not convert your Docker knowledge into higher salary.

What are the topics covered in this course?

We cover a wide range of topics in this course. We have questions on Docker best practices, Security, DockerHub, DockerCompose etc.

How will this course help me?

By attending this course, you do not have to spend time searching the Internet for Docker interview questions. We have already compiled the list of the most popular and the latest Docker Interview questions.

Are there answers in this course?

Yes, in this course each question is followed by an answer. So you can save time in interview preparation.

What is the best way of viewing this course?

You have to just watch the course from beginning to end. Once you go through all the videos, try to answer the questions in your own words. Also mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this course 2-3 times, you will be well prepared to face a technical interview in Docker architecture.

What is the level of questions in this course?

This course contains questions that are good for a Fresher to an Architect level. The difficulty level of question varies in the course from a Fresher to an Experienced professional.

What happens if Docker technology changes in future?

From time to time, we keep adding more questions to this course. Our aim is to keep you always updated with the latest interview questions on Docker.

What are the sample questions covered in this course?

Sample questions covered in this course are as follows:

  1. What is Docker?
  2. What is the difference between Docker image and Docker container?
  3. How will you remove an image from Docker?
  4. How is a Docker container different from a hypervisor?
  5. Can we write compose file in json file instead of yaml?
  6. Can we run multiple apps on one server with Docker?
  7. What are the common use cases of Docker?
  8. What are the main features of Docker-compose?
  9. What is the most popular use of Docker?
  10. What is the role of open source development in the popularity of Docker?
  11. What is the difference between Docker commands: up, run and start?
  12. What is Docker Swarm?
  13. What are the features of Docker Swarm?
  14. What is a Docker Image?
  15. What is a Docker Container?
  16. What is Docker Machine?
  17. Why do we use Docker Machine?
  18. How will you create a Container in Docker?
  19. Do you think Docker is Application-centric or Machine-centric?
  20. Can we lose our data when a Docker Container exits?
  21. Can we run more than one process in a Docker container?
  22. What are the objects created by Docker Cloud in Amazon Web Services (AWS) EC2?
  23. How will you take backup of Docker container volumes in AWS S3?
  24. What are the three main steps of Docker Compose?
  25. What is Pluggable Storage Driver architecture in Docker based containers?
  26. What is Docker Hub?
  27. What are the main features of Docker Hub?
  28. What are the main security concerns with Docker based containers?
  29. What are the security benefits of using Container based system?
  30. How can we check the status of a Container in Docker?
  31. What are the main benefits of using Docker?
  32. How does Docker simplify Software Development process?
  33. What is the basic architecture behind Docker?
  34. What are the popular tasks that you can do with Docker Command line tool?
  35. What type of applications- Stateless or Stateful are more suitable for Docker Container?
  36. How can Docker run on different Linux distributions?
  37. Why do we use Docker on top of a virtual machine?
  38. How can Docker container share resources?
  39. What is the difference between Add and Copy command in a Dockerfile?
  40. What is Docker Entrypoint?
  41. What is ONBUILD command in Docker?
  42. What is Build cache in Docker?
  43. What are the most common instructions in Dockerfile?
  44. What is the purpose of EXPOSE command in Dockerfile?
  45. What are the different kinds of namespaces available in a Container?
  46. How will you monitor Docker in production?
  47. What are the Cloud platforms that support Docker?
  48. How can we control the startup order of services in Docker compose?
  49. Why Docker compose does not wait for a container to be ready before moving on to start next service in dependency order?
  50. How will you customize Docker compose file for different environments?

Join the Docker Interview Preparation Course today!!

Top 50 Information Security Engineer Interview Questions

Introduction: Top 50 Information Security Engineer Interview Questions & Answers

Information Security/ InfoSec is a highly popular trend in technology world. There is a growing demand for Information Security/ InfoSec Engineer jobs in IT Industry. This book contains Information Security Engineer interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time.

We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Amazon etc.
Often, these questions and concepts are used in our daily work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Information Security. Buy the book on amazon.com.

How will this book help me?

By reading this book, you do not have to spend time searching the Internet for Information Security / InfoSec engineer interview questions. We have already compiled the list of most popular and latest Information Security / InfoSec engineer Interview questions.

Are there answers in this book?

Yes, in this book each question is followed by an answer. So you can save time in interview preparation.

What is the best way of reading this book?

You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass try to go through the difficult questions. After going through this book 2-3 times, you will be well prepared to face Information Security / InfoSec engineer level interview in IT.

What is the level of questions in this book?

This book contains questions that are good for Software Engineer, Senior Software Engineer and Principal Engineer level for Information Security.

What are the sample questions in this book?

  • What are the differences between Symmetric and Asymmetric encryption?
  • What is Cross Site Scripting (XSS)?
  • What is a Salted Hash?
  • What is Key Stretching?
  • What is the difference between Black Hat and White Hat hacker?
  • What is SQL Injection?
  • How will you make an application secure against SQL Injection attack?
  • What is Denial of Service (DOS) attack?
  • What is Backscatter in Denial of Service attack?
  • Why it is recommended to use SSH to connect to a server from a Windows computer?
  • What is the use of SSL?
  • What is Billion Laughs?
  • Why SSL is not sufficient for encryption?
  • Is it ok for a user to login as root for performing basic tasks on a system?
  • What is CIA triangle in security?
  • What is Data protection at rest?
  • What are the different ways to authenticate a user?
  • What is Data protection in transit?
  • What is the use of SSL Certificates on the Internet?
  • How can you find if a website is running on Apache Webserver or IIS server?
  • What is Exfiltration?
  • What is a Host Intrusion Detection System (HIDS)?
  • What is a Network Intrusion Detection System (NIDS)?
  • What is the difference between vulnerability and exploit in Software Security?
  • What is the use of Firewall?
  • What is the difference between Information security and Information assurance?
  • Do you think Open Source Software is more vulnerable to security attacks?
  • What is the role of Three-way handshake in creating a DoS attack?
  • What is more dangerous: internal threats or external threats to a software system?
  • How do you use Traceroute to determine breakdown in communication?
  • What is the difference between Diffie-Hellman and RSA protocol?
  • How will you protect system against a brute force attack?

Top 50 Node.js Interview Questions

Introduction: Top 50 Node.js Interview Questions

Node.js is one of the most popular Javascript engine in technology world. There is a growing demand for Software Engineer jobs in Node.js.

This book contains basic to expert level Node.js interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time.
We have compiled this list after attending dozens of technical interviews in top-notch companies like- Airbnb, Netflix, Uber etc.

Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Node.js.
Buy the book on amazon.com

How will this book help me?

By reading this book, you do not have to spend time searching the Internet for Node.js interview questions. We have already compiled the list of the most popular and the latest Node.js Interview questions.

Are there answers in this book?

Yes, in this book each question is followed by an answer. So you can save time in interview preparation.

What is the best way of reading this book?

You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for Software Engineer, Senior Software Engineer and Principal Engineer positions in Node.js.

What is the level of questions in this book?

This book contains questions that are good for a Associate Software engineer to a Senior Software engineer. The difficulty level of question varies in the book from a Fresher to an Experienced professional.

What are the sample questions in this book?

  • What are the reasons of popularity of Node.js?
  • What is Event Driven Programming followed in Node.js?
  • What are the main advantages of using Node.js?
  • What are the types of applications that can be built by using Node.js?
  • Why Node.js is based on single threaded architecture?
  • What are the different types of APIs available in Node.js?
  • Can we run Node.js on Windows environment?
  • What is Event Loop in Node.js?
  • What are the disadvantages of Node.js?
  • How can we handle blocking I/O operations in Node.js?
  • What is the difference between Asynchronous and Non-blocking?
  • What is the difference between Node.js and Ajax?
  • What is the difference between Node.js and AngularJS?
  • How will you import external libraries in Node.js?
  • What happens if we call require() method to load same module multiple times in Node.js?
  • Why Node.js application is scalable?
  • What is the purpose of module.exports in Node.js?
  • What is Tracing in Node.js?
  • How will you debug an application in Node.js?
  • What is a Child Process in Node.js?
  • What is a Cluster in Node.js?
  • What is closure in JavaScript?
  • What is a Buffer in Node.js?
  • How will you convert a Buffer to JSON in Node.js?
  • Why do we use __filename in Node.js?
  • What is the use of Timers is Node.js?
  • What are the important APIs in Timers module in Node.js?
  • What is EventEmitter in Node.js?
  • What is the use of net.Socket in Node.js?
  • What are the important events of net.Socket in Node.js?
  • Can we build a REST service in Node.js?
  • What is the use of DNS module in Node.js?
  • What are the important command line options in Node.js?

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What is Spring Boot?

Spring Boot is a ready made solution to create Spring applications with production grade features. It favors convention over configuration.

We can embed Tomcat or Jetty in in an application created with Spring Boot. Spring Boot automatically configures Spring in an application.

It does not require any code generation or xml configuration. It is an easy solution to create applications that can run stand-alone.