Network Layer Protocol
Q21.
Which one of the following fields of an IP header is NOT modified by a typical IP router?Q22.
In a class B subnet, we know the IP address of one host and the mask as given below:IP address: 125.134.112.66Mask: 255.255.224.0What is the first address(Network address)?Q23.
An organization is granted the block 130.34.12.64/26. It needs to have 4 subnets. Which of the following is not an address of this organization?Q24.
A router uses the following routing table:\begin{array}{|l|l|l|} \hline \text { Destination } & \text { Mask } & \text { Interface } \\ \hline 144.16 .0 .0 & 255.255 .0 .0 & \text { eth0 } \\ \hline 144.16 .64 .0 & 255.255 .224 .0 & \text { eth1 } \\ \hline 144.16 .68 .0 & 255.255 .255 .0 & \text { eth2 } \\ \hline 144.16 .68 .64 & 255.255 .255 .224 & \text { eth3 } \\ \hline \end{array}Packet bearing a destination address 144.16.68.117 arrives at the router. On which interface will it be forwarded?Q25.
How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communication with the host?Q26.
In the network 200.10.11.144/27, the fourth octet (in decimal) of the last IP address of the network which can be assigned to a host is ____________.Q28.
Which one of the following protocols is NOT used to resolve one form of address to another one?Q29.
Consider the following routing table at an IP router: For each IP address in Group I identify the correct choice of the next hop from Group II using the entries from the routing table above.Q30.
A IP packet has arrived in which the fragmentation offset value is 100,the value of HLEN is 5 and the value of total length field is 200. What is the number of the last byte?