What is the function of the Android 'WifiManager'? MCQ with Answer and Explanation

Question
What is the function of the Android 'WifiManager'?
A. To manage network preferences
B. To manage Wi-Fi connectivity, scan networks, and configure connections
C. To manage cellular data
D. To manage Bluetooth
Answer: Option B
Solution (By JKSSB Mock Tests)
WifiManager provides APIs to enable/disable Wi-Fi, scan for networks, and connect to access points.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which of the following commands can be used in Linux to move a file or rename it directly?
A. rn
B. cp
C. ren
D. mv
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Correct Answer: Option D

Explanation:
The 'mv' command stands for move and is used in Unix-like systems to either move a file to another path or change its name.
This question belongs to: Computer Operating Systems
Question #2
Which Linux file directory typically contains all system binary executable files required for basic administration and user operations?
A. /bin
B. /etc
C. /var
D. /dev
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Correct Answer: Option A

Explanation:
The '/bin' directory stands for binaries and contains fundamental executable command programs like ls, cp, and mv needed across the system.
This question belongs to: Computer Operating Systems
Question #3
What is the purpose of the Android 'DownloadProvider'?
A. To store downloaded files
B. To manage download priority
C. To manage download requests and provide access to downloaded files
D. To download files only
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Correct Answer: Option C

Explanation:
DownloadProvider is a content provider that handles download requests, storing metadata and files for apps.
This question belongs to: Computer Operating Systems
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