Question

Which of the following assertions is FALSE about the Internet Protocol (IP)?

• A. The packet source cannot set the route of an out going packets; the route is determined only by the routing tables in the routers on the way
• B. IP ensures that a packet is forwarded if it is unable to reach its destination within a given number of hopes
• C. IP packets form the same source to the same destination can take different routes in the network
• D. It is possible for a computer to have multiple IP addresses

Answer 1

The correct option is A The packet source cannot set the route of an out going packets; the route is determined only by the routing tables in the routers on the way

Consider each choice separately
Choice(a) : It is possible for a computer to have multiple IP addresses.IP addresses specify the network connection not to a host computer so if a host computer moves form one network to another. Its IP address must change. In the network the IP address for a computer is unique but when we move the host computes form one network to another network, its IP address must be changed
Choice(b): IP packets from the same source to the same destination can take different routes in the network. In packet switching network the routers are determined by routing algorithms. It may be possible that different networks follow different routing algorithms so the statement is true.
Choice(c): IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops, so statement is true.
Choice(d) : The packet source cannot set the roue of an outgoing packet, the route is determined only by the routing tables in the routers on the way . The usual IP routing algorithm employs an in internet routing table on each machine (computer) that stores information about possible destination and how to reach them. Because both hosts (computer) and routers route datagrams both have IP routing tables so the statement is false.