Multiple Choice Questions on CCNA - Computer Networks - Set 9

Best CCNA Multiple Choice Questions with Answers and Explanations. These Questions Will Help You to Clear CCNA Exam. MCQ on Computer Network for Preparation of Comprehensive Examinations like UGC NET, TET Exam 2012.

1) Which protocol working at the Transport layer provides a connectionless service between hosts?

1. IP
2. ARP
3. TCP
4. UDP

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Answer = D
Explanation: User Datagram Protocol is used at the Transport layer to provide a connectionless service.

2) Which protocol works at the Transport layer and provides virtual circuits between hosts?

1. IP
2. ARP
3. TCP
4. UDP

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Answer = C
Explanation: Transmission Control Protocol sets up a virtual circuit before transmitting any data. This creates a reliable session and is known as a connection-oriented session.

3) Which protocol works at the Internet layer and provides a connection service between hosts?

1. IP
2. ARP
3. TCP
4. UDP

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Answer = A
Explanation: Internet Protocol is used to address hosts and route packets through the internetwork. The question does not refer to a connection-oriented service, which is different from a plain connection service.

4) If a host broadcasts a frame that includes a source and destination hardware address, and its purpose is to assign IP addresses to itself, which protocol at the Network layer does the host use?

1. RARP
2. ARPA
3. ICMP
4. TCP
5. IPX

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Answer = A
Explanation: Reverse ARP is used to find an IP address from a known hardware address.

5) If a router interface is congested, which protocol in the IP suite is used to tell neighbor routers?

1. RARP
2. ARP
3. ICMP
4. IP
5. TCP

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Answer = C
Explanation: Internet Control Message Protocol (ICMP) is used to send redirects back to an originating router.

6) What is the valid host range the IP address 172.16.10.22 255.255.255.240 is a part of? 

1. 172.16.10.20 through 172.16.10.22
2. 172.16.10.1 through 172.16.10.255
3. 172.16.10.16 through 172.16.10.23
4. 172.16.10.17 through 172.16.10.31
5. 172.16.10.17 through 172.16.10.30

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Answer = E
Explanation: First start by using the 256 mask, which in this case is 256–240=16. The first subnet is 16; the second subnet is 32. This host must be in the 16 subnet; the broadcast address is 31 and the valid host range is 17–30.

7) What range of addresses can be used in the first octet of a Class B network address?

1. 1-126
2. 1-127
3. 128-190
4. 128-191
5. 129-192
6. 192-220

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Answer = D
Explanation: A Class B network is defined in the first octet with the numbers 128–191.

8) What range of addresses can be used in the first octet of a Class C address?

1. 1-127
2. 129-192
3. 203-234
4. 192-223

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Answer = D
Explanation: A Class C network is defined in the first octet with the numbers 192-223.

9) How many bytes is an Ethernet address?

1. 3
2. 4
3. 5
4. 6
5. 7
6. 8
7. 16

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Answer = D
Explanation: An Ethernet (MAC) address is 6 bytes long (48 bits).

10) What protocol is used to find the hardware address of a local device?

1. RARP
2. ARP
3. IP
4. ICMP
5. BootP

Show/Hide Answer

Answer = B
Explanation: Address Resolution Protocol (ARP) is used to find the hardware address from a known IP address.

To Read More Multiple Choice Questions on Computer Networks - Click Here

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Basic Networking Quiz
Network Fundamental Quiz
Computer Network MCQ With Answers
MCQ on CCNA

Tags: CCNA MCQ, CCNA Multiple Choice Questions, MCQ on Computer Network, TET Exam 2012 Preparation, TET exam 2012 Sample Question Papers.

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