Operating Systems

Operating Systems

University

15 Qs

quiz-placeholder

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Operating Systems

Operating Systems

Assessment

Quiz

Computers

University

Practice Problem

Medium

Created by

Kowshal Kattamuri

Used 10+ times

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Which of the following best describes virtual memory?

It is a part of main memory only used for swapping

It is a technique to execute processes that may not be completely in memory

It is used to increase the size of physical memory

It is the same as RAM

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In paging, the page table maps:

Logical addresses to physical addresses

Physical addresses to logical addresses

Virtual memory to RAM

RAM to secondary storage

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a page replacement algorithm?

FIFO

LRU

Optimal

SSTF

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Thrashing occurs when:

Processes are swapping too frequently between memory and disk

The CPU usage is 100%

There is no virtual memory

Processes are blocked

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the Translation Lookaside Buffer (TLB)?

Stores the actual data of pages

Improves the performance of segmentation

Maps logical to virtual addresses

Caches page table entries for fast retrieval

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a valid file allocation method?

Contiguous

Linked

Indexed

Direct

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following file access methods allows reading records in any order?

Sequential

Direct

Indexed Sequential

Linear

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