What technique is used by operating systems to handle input/output operations for slow devices like printers by temporarily storing data in an isolated disk queue? MCQ with Answer and Explanation

Question

What technique is used by operating systems to handle input/output operations for slow devices like printers by temporarily storing data in an isolated disk queue?

A. Caching

B. Paging

C. Spooling

D. Threading

Answer: Option C

Solution (By JKSSB Mock Tests)

Spooling manages high-volume document outputs by queuing files on secondary storage until the slower output device (like a printer) is ready to process them.

This question belongs to: Computer Operating Systems

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Question #1

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Which of the following is a feature of the Windows 'BitLocker' that uses a TPM?

A. Software-only encryption

B. Trusted Platform Module for hardware-based encryption key storage

C. USB key authentication only

D. Password only

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Correct Answer: Option B

Explanation:
BitLocker can use TPM to secure encryption keys, providing hardware protection against attacks.

This question belongs to: Computer Operating Systems

Question #2

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In Linux, the file /etc/passwd contains:

A. Encrypted passwords

B. Group information

C. User account information

D. System hostname

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Correct Answer: Option C

Explanation:
/etc/passwd stores user account data such as username, UID, home directory, and shell; passwords are stored separately in /etc/shadow.

This question belongs to: Computer Operating Systems