McQ 1.with regard to the arp table,which of the following description is correct

a.Used for conversion of application layer inf ormation

b. Used for routing between subnets

c.Used to establish IP address to MAC addres s mapping

d.Provide shortcuts to common destination ad dresses to reduce network traffic

2. When a host moves from one network to another, which of the following statements is true?

a.The MAC address and IP address do not need to be changed

B. Its IP address and MAC address must be changed

c.The IP address must be changed, but the MAC address does not need to be changed

D. Its MAC address must be changed, but its IP address does not need to be changed