Question

true or false ?

1) In a network where virtual circuit is used in Network layer , the virtual circuit number is fixed through out the route .

2) If an IP packet is fragmented at a router , the reassembly will be perform in next router.

3) When a client machine first sends out the DHCP discover message , the message destination address should be set to DHCP server IP address.

4) In IPv6 , IP address is 6 bytes long.

Answer 1

(1) In a network where virtual circuit is used in Network layer , the virtual circuit number is fixed through out the route .

Answer: true

Description:

In a network where a virtual circuit is used in network layer, the virtual circuit number is fixed throughout the route because it follows connection oriented communication or packet switching method. So, the virtual circuit or virtual path is always fixed to deliver data.

(2) If an IP packet is fragmented at a router , the reassembly will be perform in next router.

Answer: False

Description:

Reassembly of fragmented IP packets is taking place at the destination router or host. Generally in both IPv4 and IPv6 reassembly is done at receiving destination only.

(3) When a client machine first sends out the DHCP discover message , the message destination address should be set to DHCP server IP address.

Answer: False

Description:

When a DHCP client machine first sends DHCPDISCOVER message then for broadcasting the message, destination address will be 255.255.255.255 or particular subnet broadcast address to find any server in the network.

(4) In IPv6 , IP address is 6 bytes long.

Answer: False

Description:

In IPv6 protocol, IP addresses are 16 bytes (128bits) long.