Explain async/await, closures, and scope in JavaScript.
JavaScript
Suggested Answer
Closures allow a function to access variables from its outer scope even after the outer function has returned. Async/await is syntactic sugar over Promises, allowing asynchronous code to be written in a synchronous style. Scope determines the accessibility of variables in different parts of the code.
Merge a linked list into another linked list at alternate positions
Explain the differences between SQL and NoSQL databases.
DBMS
Suggested Answer
SQL databases are relational, use structured schemas, and are vertically scalable. NoSQL databases are non-relational, schema-flexible, and designed for horizontal scalability and unstructured data.
Be prepared to discuss the 'why' behind technology choices in past projects.
Practice explaining time and space complexity for every coding solution.
Review core CS fundamentals including Networking, DBMS, and Operating Systems.