Questions that have appeared at zoominfo for a Software Engineer (Technical) interview.

1. Data Structures and Algorithms

Question: Can you explain the differences between a stack and a queue? When might you choose to use one over the other?

Question: What is time complexity and space complexity? Can you describe Big O notation?

Question: What is the difference between a linked list and an array? In what scenarios would you use each?

2. Operating Systems

Question: Can you explain what a semaphore is, and how it can be used in relation to multithreading?

Question: How does a process differ from a thread? Discuss the advantages and disadvantages of each.

Question: Can you explain how virtual memory works in an operating system?

3. Databases

Question: Could you explain the difference between a relational database and a NoSQL database?

Question: What is database normalization and why is it important?

Question: Can you explain the concept of ACID properties in the context of databases?

4. Software Development Methodologies

Question: Can you describe the differences between Agile and Waterfall methodologies?

Question: What is Scrum and how does it fit into Agile software development?

Question: Can you discuss the benefits or drawbacks of test-driven development?

5. Networks and Communication

Question: Can you explain how the TCP/IP model works? How does it compare with the OSI model?

Question: What do you understand by the term 'HTTP protocol'? Describe how a client-server interaction happens over HTTP.

Question: How does DNS work? Can you walk me through the process of how a URL is resolved to an IP address?