Operating System Multiple Choice Questions Set-1


1.Which of the following requires a device driver? a) Registerb) Cachec) Main memoryd) Disk Answer: (d) 2.What is operating system? a) collection of programs that manages hardware resourcesb) system service provider to the application programsc) link to interface the hardware and application programsd) all of the mentioned Answer: (d) 3.Which one of the following error … Read more

DBMS MCQ Questions and Answer Set-4


1. Which of the following relational algebra operations do not require the participating tables to be union-compatible? (A) ) Union (B) Intersection (C) Difference (D) Join Ans: (D) 2. Which of the following is not a property of transactions? (A) Atomicity (B) Concurrency (C) Isolation (D) Durability Ans: (B) 3. Checkpoints are a part of … Read more