Which of the following is a Linux command used to manage print queues? MCQ with Answer and Explanation

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Which of the following is a Linux command used to manage print queues?

A. lpc

B. lpr

C. lp

D. lpq

Answer: Option C

Solution (By JKExamLibrary)

lp is used to send files to print; lpr is similar; lpq shows queue; lpc controls printers.

This question belongs to: Computer Operating Systems

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What is the purpose of the Android 'AccessibilityManager'?

A. To manage accessibility settings

B. To handle screen readers

C. To control gesture navigation

D. To provide accessibility features and services for users with disabilities

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Correct Answer: Option D

Explanation:
AccessibilityManager enables apps to assist users with disabilities, e.g., text-to-speech, magnification.

This question belongs to: Computer Operating Systems

Question #2 Report Error

In Linux, which command is used to display the contents of a text file directly onto the terminal screen?

A. cd

B. cat

C. ls

D. cp

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Correct Answer: Option B

Explanation:
The 'cat' (concatenate) command is used to read and display file contents directly onto the standard output terminal screen.

This question belongs to: Computer Operating Systems

Question #3 Report Error

What is the purpose of the Android 'NetworkStatsManager'?

A. To monitor current network speed

B. To query historical network usage statistics

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Correct Answer: Option B

Explanation:
NetworkStatsManager provides data on network usage by app over time, used for data quota monitoring.

This question belongs to: Computer Operating Systems

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