PPSC Stenotypist (BS-12): Computer Science MCQs with Answers

Question 1

How many bytes are in 1 Megabyte (MB)?

Accepted Answer

1048576

Answer

1024

Answer

1000000

Answer

524288

Question 2

A 32-bit processor can directly address a maximum of how much RAM?

Accepted Answer

4 GB

Answer

2 GB

Answer

8 GB

Answer

16 GB

Question 3

What type of memory is used to store the BIOS firmware?

Accepted Answer

ROM

Answer

DRAM

Answer

SRAM

Answer

Virtual Memory

Question 4

Virtual memory is an extension of which physical component?

Accepted Answer

RAM

Answer

Cache Memory

Answer

Hard Disk

Answer

CPU Registers

Question 5

Which of the following is the correct order of memory speed from fastest to slowest?

Accepted Answer

Registers > Cache > RAM > HDD

Answer

RAM > Cache > Registers > HDD

Answer

Cache > RAM > Registers > HDD

Answer

HDD > RAM > Cache > Registers