Which Linux terminal utility command is explicitly used to check network connectivity to a remote host by sending ICMP Echo Request packets? MCQ with Answer and Explanation

Question
Which Linux terminal utility command is explicitly used to check network connectivity to a remote host by sending ICMP Echo Request packets?
A. ping
B. traceroute
C. netstat
D. ssh
Answer: Option A
Solution (By JKSSB Mock Tests)
The 'ping' utility verifies network reachability by dispatching ICMP echo packets and measuring return times from target network interfaces.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which of the following is a characteristic of a distributed file system?
A. It is used only for backup purposes
B. It requires a single central server
C. It is slower than local file systems
D. Files are stored across multiple servers and can be accessed transparently
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Correct Answer: Option D

Explanation:
Distributed file systems (e.g., NFS, HDFS) provide a unified view of files across network nodes, enabling scalable storage.
This question belongs to: Computer Operating Systems
Question #2
Which of the following is an example of a real-time operating system (RTOS)?
A. VxWorks
B. Linux
C. Android
D. Windows 10
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Correct Answer: Option A

Explanation:
VxWorks is a real-time OS used in embedded systems requiring deterministic response times; general-purpose OSes are not RTOS.
This question belongs to: Computer Operating Systems
Question #3
Which Android subsystem handles the core power management features to optimize battery consumption on mobile chipsets?
A. Dalvik Cache Manager
B. Wakelocks (via Linux kernel power drivers)
C. Android Package Installer
D. Surface Flinger Engine
Discuss
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Correct Answer: Option B

Explanation:
Android utilizes specialized power management routines (such as Wakelocks) integrated into its Linux kernel base to regulate system sleep cycles and battery drain.
This question belongs to: Computer Operating Systems
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