Q1. How would you go about debugging thread-safety or concurrency issues? A1. #1: Manually reviewing the code for any obvious thread-safety issues. Good knowledge of multi-threading is required. #2: List all possible causes and add extensive log statements and write test cases to prove or disprove your theories. … Read...
Q1. Are memory leaks possible in Java, which has memory management via automatic Garbage Collection? A1. Memory and resource leaks are possible in any robust application. In managed languages such as Java and C#, the developers do not have to worry too much about memory management as the garbage collector...
The SAR (Situation-Action-Result) technique is very useful to tackle open-ended questions like:
1. What were some of the challenges you had encountered,
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Performance testing is an important process of any software development. You can bring this up yourself to many open-ended questions like — Tell me about yourself? What are some of your recent accomplishments that you are proud of? Setting up a performance/load test script is always the first step in...
A distributed system consists of multiple software components that are on multiple computers (aka nodes), but run as a single system. These components can be stateful, stateless, or serverless, and these components can be created in different languages running on hybrid environments and developing open-source technologies, open standards, and interoperability....
#1: Choose the right type of Java data structure based on usage patterns
like fixed size or required to grow, duplicates allowed or not, ordering is required to be maintained or not, traversal is forward only or bi-directional, inserts at the end only or any arbitrary position,
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Java Garbage Collection interview questions & answers to ascertain your depth of Java knowledge in building industry strength Java applications. Determining optimal Garbage Collection (GC) settings is critical to achieve high throughput & low latency.
Q1. In which part of memory does Java Garbage Collection (i.e.
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Q1. What is a Transaction? A1. A transaction is a set of operations that should be completed as a unit. If one operation fails then all the other operations fail as well. Example 1: If you transfer funds between two accounts there will be two operations in the set Operation...
This extends 20+ Docker interview Q&As Q1. What is Docker compose? A1. A Docker container’s main running process is the ENTRYPOINT and/or CMD at the end of the Dockerfile . It is generally recommended that you separate areas of concern by using one service per container. … Read more ›...
Q. What are some of the considerations in auditing database table data? A. Creating audit tables without any constraints to store record changes. Audit tables are heavily hit with inserts, hence needs to have fewer indices if at all required. … Read more ›...
Q1 What are some of the considerations in auditing database table data? A1 1) Tables are created with auditable columns like created_by, created_date, updated_by, and updated_date, and synch_date or timestamp. You can also have a version column. Thes fields are handy to track changes. … Read more ›...
Over the last few years the number of AWS services that are related to building, managing or deploying software projects on AWS has grown a lot — AWS Amplify, AWS App Runner, AWS Elastic Beanstalk, AWS Code family like CodePipeline, CodeCommit, CodeBuild, CodeStar, CodeArtifact, and Amazon CodeCatalyst. This post does...
Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups & 15+ AWS Services overview interview Q&As. Q1. What is the purpose WAF in AWS? … Read more ›...
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