Network Layer - MCQs with Answer

Network Layer - MCQs with Answer


1. Which functionality of the network layer deals with the necessity of a three-way handshake usually before the transmission of data from sender to receiver?

a. Path determination
b. Forwarding
c. Call Set-up
d. All of the above

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ANSWER: c. Call Set-up



2. A packet used for the transmission purpose is basically a combination of __________

a. group of bits
b. source & destination addressess
c. both a & b
d. none of the above

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ANSWER: c. both a & b



3. Which unit plays a crucial role in carrying out the functions of network layer, simply by the addition of a header to it ?

a. Network Service Data Unit (NSDU)
b. Medium Access Control Unit (MACU)
c. Network Address Translation Unit (NATU)
d. None of the above

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ANSWER: a. Network Service Data Unit (NSDU)



4. Match the classes of IP addresses with their functional applications

A. Class A -------------------- 1) Multicast services
B. Class B -------------------- 2) Reserved for future use
C. Class D -------------------- 3) Large organizations
D. Class E -------------------- 4) Midsize Organizations

a. A- 4, B- 3, C- 2, D- 1
b. A- 2, B- 4, C- 1, D- 3
c. A- 3, B- 4, C- 1, D- 2
d. A- 1, B- 2, C- 3, D- 4

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ANSWER: c. A- 3, B- 4, C- 1, D- 2



5. Which form of byte assigning strategy is adopted in class B type of network corresponding to IP addresses?

a. Network.Node.Node.Node
b. Network.Network.Node.Node
c. Network.Network.Network.Node
d. Network.Node.Node.Node

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ANSWER: b. Network.Network.Node.Node



6. On which factors do the size of block depends in classless addressing?

a. Nature & size of an entity
b. Number of addresses
c. Availability of the address space
d. All of the above

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ANSWER: a. Nature & size of an entity



7. What are the problems involved in an IP Fragmentation Process?

A. Loss of any fragment results in rejection of all datagrams

B. Management of buffer space is essential to handle reassembly process

C. No necessity of initializing the timer after the reception of initial fragment

D. Multiple attempts can be made to recover ICMP error message due to connection-oriented IP service

a. A & B
b. C & D
c. B& C
d. A & D

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ANSWER: a. A & B



8. The ability of a single network to span multiple physical networks is known as ______

a. Subnetting
b. Masking
c. Fragmenting
d. Hopping

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ANSWER: a. Subnetting



9.Which field/s of ICMPv6 packet header has/have a provision of minimal integrity level concerning to verification for ICMP messages?

a. Type
b. Code
c. Checksum
d. All of the above

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ANSWER: c. Checksum



10. Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering?

a. Source Route Failed
b. Communication Administratively Prohibited
c. Host Precedence Violation
d. Precedence Cut-off in Effect

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ANSWER: b. Communication Administratively Prohibited


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