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Networking MCQ Question with Answer

Networking MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 29
What are the subnet mask in dotted decimal notation for /20 networks?

255.255.252.0
255.255.255.0
255.255.254.0
255.255.240.0

Question No : 30
ICMP messages require ………………. levels of encapsulation

One
Two
Three
Four

Question No : 31
A router receives an IP packet with source IP address 130.45.3.3 and destination IP address 202.23.4.16. The router cannot find the destination IP address in its routing table. Which ICMP message should be sent?

Time stamp request
Router solicitation
Destination Unreachable
Parameter problem on a datagram

Question No : 32
In an autonomous system with n areas, how many areas are connected to the backbone?

1
N
N+1
N-1

Question No : 33
OSPF is based on …………………

Distance vector routing
Path vector routing
Link state routing
both a and b

Question No : 34
Which type of BGP message is sent by a system to notify another router of the senders existence?

Keep-alive
Notification
Open
Update

Question No : 35
What is the length of MARKER field in BGP message header?

1 byte
2 byte
16 byte
19 byte

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