CN- IP

Which field helps to check rearrangement of the fragments?

• offset

• flag

• ttl

• identifer

If the value in protocol field is 17, the transport layer protocol used is _____________

• TCP

• UDP

• ICMP

• IGMP

The TTL field has value 10. How many routers (max) can process this datagram?

• 11

• 5

• 10

• 1

Which of these is not applicable for IP protocol?

• is connectionless

• offer reliable service

• offer unreliable service

• does not offer error reporting

Which of the following field in IPv4 datagram is not related to fragmentation?

• Flags

• Offset

• TOS

• Identifier

Which of the following is true about fragmentation?

• Routers between source and destination hosts can fragment IPv4 packets.

• Only the first router in the network can fragment IPv4 packets.

• IPv4 packets cannot be fragmented.

• IPv4 packets are fragmented and reassembled at each link through the network.

In the TCP/IP protocol suite, which one of the following is NOT part of the IP header?

• Fragment Offset

• Source IP address

• Destination IP address

• Destination port number

The IP address __________ is used by hosts when they are being booted.

• 0.0.0.0

• 1.0.0.0

• 1.1.1.1

• 255.255.255.255

Which of the following is a dotted-decimal representation of a /26 prefix mask?

• 255.255.255.128

• 255.255.255.192

• 255.255.255.224

• 255.255.255.252

Classless Inter-domain Routing (CIDR) receives a packet with address 131.23.151.76. The router’s routing table has the following entries:

The identifier of the output interface on which this packet will be forwarded is ______.

• 1

• 2

• 3

• 5