Core CS rapid-fire round
60 min · Advanced
A rapid-fire round is a part of a technical interview where the interviewer asks many short core CS questions, one after another, and expects a short, correct answer to each. It checks whether the basics of operating systems, DBMS and networks are clear in your head, not whether you can write an essay.
Topics in this lesson
- How the round runs: answers in two or three sentences
- Round 1: operating systems (10 questions)
- Round 2: DBMS (10 questions)
- Round 3: computer networks (10 questions)
- Saying "I am not sure", scoring and what to revise
Interview questions this lesson answers
- What is an operating system?
- What is the kernel?
- What is a system call?
- What is the difference between user mode and kernel mode?
- What is the difference between multiprogramming and multitasking?
- What is the convoy effect in FCFS scheduling?
- Why is SJF hard to use in practice?
- What is the Banker's algorithm used for?
- What is Belady's anomaly?
- What is the difference between internal and external fragmentation?
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