Operating System Questions & Answers – Distributed Operating System – Robustness of Distributed Systems

This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Robustness of Distributed Systems”.

1. How many layers does the Internet model ISO consist of?
a) Three
b) Five
c) Seven
d) Eight
View Answer

Answer: c
Explanation: None.

2. Which layer is responsible for The process-to-process delivery?
a) Network
b) Transport
c) Application
d) Physical
View Answer

Answer: b
Explanation: None.

3. Which layer is the layer closest to the transmission medium?
a) Physical
b) Data link
c) Network
d) Transport
View Answer

Answer: a
Explanation: None.
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4. Header are ______ when data packet moves from upper to the lower layers?
a) Modified
b) Removed
c) Added
d) All of the mentioned
View Answer

Answer: c
Explanation: None.

5. Which layer lies between the transport layer and data link layer?
a) Physical
b) Network
c) Application
d) Session
View Answer

Answer: b
Explanation: None.
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6. Which of the following is an application layer service?
a) Mail service
b) File transfer
c) Remote access
d) All of the mentioned
View Answer

Answer: d
Explanation: None.

7. What are the different ways distributed may suffer?
a) Failure of a link
b) Failure of a site
c) Loss of message
d) All of the mentioned
View Answer

Answer: d
Explanation: None.
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8. What are design issues in distributed system structure?
a) Scalability
b) Fault-tolerance
c) Clustering
d) All of the mentioned
View Answer

Answer: d
Explanation: None.

9. In which OSI layer encryption and decryption happens?
a) Application
b) Presentation
c) Transport
d) Data Link
View Answer

Answer: b
Explanation: None.
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10. What are the important steps followed when recovery from failure happens?
a) Post repairing integration with main system should happen smoothly and gracefully
b) Upon link failure both parties at end must not be notified
c) Fault recovery system must me adjusted
d) Failures are logged systematically
View Answer

Answer: a
Explanation: None.

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If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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