TCP/IP Internet Layer Common Protocols

Question 1

Internet Protocol (IP) performs the following operations:

Answer 1

• Defines a packet and an addressing scheme
• Transfers data between the Internet layer and network access layers
• Routes packets to remote hosts

Question 2

It refers to a TCP/IP protocol that handles errors and controls the process of sending data between computers.

Specifically, routers and hosts use .. to send reports of problems about packets that return to the original source that sent the packet.

also includes an echo requests/reply that is used to test whether a destination is reachable and responding.

Answer 2

Internet Control Message Protocol (ICMP)

Question 3

It refers to a TCP/IP protocol that handles multicasting. Hosts use .. to keep local routers apprised of their membership in multicast groups.

When all hosts leave a group, routers no longer forward packets that arrive for the group.

Answer 3

Internet Group Management Protocol (IGMP)

Question 4

It refers to a TCP/IP protocol that obtains the physical address of a node from a specific IP number.

It is used to dynamically bind a high-level IP address to a low-level physical address and is used across a single physical network.

It is limited to networks that support hardware broadcast.

Answer 4

Address Resolution Protocol (ARP)

Question 5

It refers to a TCP/IP protocol that allows a host with no local permanent data storage media to find its Internet address given its physical address.

Answer 5

Reverse Address Resolution Protocol (RARP)