Practice Exam Test Questions
Choose the letter of the best answer in each questions.
1. The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver.
A) data link
B) network
C) physical
D) none of the above
Answer: Option B
Solution:
2. Which of the following is an application layer service?
A) File transfer and access
B) Mail service
C) Remote log-in
D) All the above
Answer: Option D
Solution:
3. When data are transmitted from device A to device B, the header from A’s layer 4 is read by B’s _______ layer.
A) Transport
B) Application
C) Physical
D) None of the above
Answer: Option A
Solution:
4. __________ provides full transport layer services to applications.
A) UDP
B) TCP
C) ARP
D) none of the above
Answer: Option B
Solution:
5. The process-to-process delivery of the entire message is the responsibility of the _______ layer.
A) Transport
B) Application
C) Physical
D) Network
Answer: Option A
Solution:
6. The ______ layer is responsible for moving frames from one hop (node) to the next.
A) transport
B) data link
C) physical
D) none of the above
Answer: Option B
Solution:
7. The _______ layer is responsible for delivering data units from one station to the next without errors.
A) physical
B) data link
C) transport
D) network
Answer: Option B
Solution:
8. The session, presentation, and application layers are the ______ support layers.
A) user
B) network
C) both (a) and (b)
D) neither (a) nor (b)
Answer: Option A
Solution:
9. The physical, data link, and network layers are the ______ support layers.
A) network
B) user
C) both (a) and (b)
D) neither (a) nor (b)
Answer: Option A
Solution:
10. The ________ layer is responsible for the process-to-process delivery of the entire message.
A) transport
B) physical
C) network
D) data link
Answer: Option A
Solution:
11. The _______ layer lies between the network layer and the application layer.
A) Data link
B) Transport
C) Physical
D) None of the above
Answer: Option B
Solution:
12. The Internetworking Protocol (IP) is a ________ protocol.
A) connection-oriented
B) reliable
C) both a and b
D) none of the above
Answer: Option D
Solution:
13. The _______ layer links the network support layers and the user support layers.
A) session
B) transport
C) data link
D) network
Answer: Option B
Solution:
14. ICMPv6 includes _______.
A) IGMP
B) ARP
C) RARP
D) a and b
Answer: Option D
Solution:
15. The ____ address uniquely defines a host on the Internet.
A) IP
B) port
C) specific
D) physical
Answer: Option A
Solution:
16. The _______ layer coordinates the functions required to transmit a bit stream over a physical medium.
A) data link
B) transport
C) network
D) physical
Answer: Option D
Solution:
17. The ______ layer is responsible for the source-to-destination delivery of a packet across multiple network links.
A) network
B) physical
C) data link
D) transport
Answer: Option A
Solution:
18. Mail services are available to network users through the _______ layer.
A) Transport
B) Physical
C) Data link
D) Application
Answer: Option D
Solution:
19. The ____ created a model called the Open Systems Interconnection, which allows diverse systems to communicate.
A) IEEE
B) ISO
C) OSI
D) none of the above
Answer: Option B
Solution:
20. The _______ layer changes bits into electromagnetic signals.
A) Physical
B) Transport
C) Data link
D) None of the above
Answer: Option A
Solution:
21. IPv6 has _______ -bit addresses.
A) 128
B) 32
C) 64
D) variable
Answer: Option A
Solution:
22. The_____ address identifies a process on a host.
A) specific
B) port
C) IP
D) physical
Answer: Option B
Solution:
23. The_________ layer is responsible for the delivery of a message from one process to another.
A) transport
B) network
C) physical
D) none of the above
Answer: Option A
Solution:
24. The _________ layer enables the users to access the network.
A) application
B) physical
C) data link
D) transport
Answer: Option A
Solution:
Complete List of Chapter Quiz in Data Communications and Networking
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