Network Layer Protocol


Q11.

Match with the suitable one:\begin{array}{|l|l|l|l|} \hline & \text { List-1 } & & \text { List-2 } \\ \hline \text { (a) } & \text { Multicast group membership } & \text { i. } & \text { Distance Vector routing } \\ \hline \text { (b) } & \text { Interior gateway protocol } & ii . & \text { IGMP } \\ \hline \text { (c) } & \text { Exterior gateway protocol } & iii . & \text { OSPF } \\ \hline \text { (d) } & \text { RIP } & iv . & \text { BGP } \\ \hline \end{array}
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Q12.

onsider the following statements about the functionality of an IP based router. I. A router does not modify the IP packets during forwarding. II. It is not necessary for a router to implement any routing protocol. III. A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet. Which of the above statements is/are TRUE?
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Q13.

The default subnet mask for a class B network can be
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Q14.

Consider the following statements about the routing protocols, Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) in an IPv4 network. I. RIP uses distance vector routing II. RIP packets are sent using UDP III. OSPF packets are sent using TCP IV. OSPF operation is based on link-state routing Which of the statements above are CORRECT?
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Q15.

Consider routing table of an organization's router shown below: \begin{array}{|l|l|l|} Subnet Number & Subnet Mask & Next Hop \\ 12.20.164.0 & 255.255.252.0 & R1 \\ 12.20.170.0 & 255.255.254.0 & R2 \\ 12.20.168.0 & 255.255.254.0 & Interface 0 \\ 12.20.166.0 & 255.255.254.0 & Interface 1 \\ default & ~ & R3 \\ \hline \end{array} Which of the following prefixes in CIDR notation can be collectively used to correctly aggregate all of the subnets in the routing table?MSQ
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Q16.

The forwarding table of a router is shown below.\begin{array}{|c|c|c|c|} \hline \\ Subnet \; Number&Subnet \;Mask&Interface ID \\ \hline 200.150.0.0 &255.255.0.0& 1\\ \hline 200.150.64.0 &255.255.224.0 &2\\ \hline 200.150.68.0 &255.255.255.0 &3\\ \hline 200.150.68.64 &255.255.255.224 &4 \\ \hline Default & &0\\ \hline \end{array} A packet addressed to a destination address 200.150.68.118 arrives at the router. It will be forwarded to the interface with ID _____.
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Q17.

Which network protocol allows hosts to dynamically get a unique IP number on each bootup
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Q18.

The address of a class B host is to be split into subnets with a 6-bit subnet number. What is the maximum number of subnets and the maximum number of hosts in each subnet?
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Q19.

The maximum number of IPv4 router addresses that can be listed in the record route (RR) option field of an IPv4 header is _________.
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Q20.

Assume the following information.Original timestamp value = 46Receive timestamp value = 59Transmit timestamp value = 60Timestamp at arrival of packet = 69Which of the following statements is correct?
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