2. How TCP/IP Works

Question 1

Address Resolution Protocol(ARP)

Answer 1

A protocol that resolves logical IP addresses to physical addresses.

Question 2

Application Layer

Answer 2

The layer of the TCP/IP stack that supports network applications and provides an interface to the local operating environment.

Question 3

Datagram

Answer 3

The data package passed between the Internet layer and the Network Access layer, or a data package passed between UDP at the Transport layer and the Internet layer.

Question 4

Frame

Answer 4

The data package created at the Network Access layer.

Question 5

Header

Answer 5

A bundle of protocol information attached to the data at each layer of the protocol stack.

Question 6

Internet Layer

Answer 6

The layer of the TCP/IP stack that provides logical addressing and routing.

Question 7

Internet Protocol(IP)

Answer 7

The Internet layer protocol that provides logical addressing and routing capabilities.

Question 8

Message

Answer 8

In TCP/IP networking, a message is the data package passed between the Application layer and the Transport layer. The term is also used generically to describe a message from one entity to another on the network. The term doesn’t always refer to an Application layer data package.

Question 9

Network Access Layer

Answer 9

The layer of the TCP/IP stack that provides an interface with the physical network.

Question 10

Segment

Answer 10

The data package passed between TCP at the Transport layer and the Internet layer.

Question 11

Transmission Control Protocol (TCP)

Answer 11

A reliable, connection-oriented protocol of the Transport layer.

Question 12

Transport Layer

Answer 12

The layer of the TCP/IP stack that provides error control and acknowledgment and serves as an interface for network applications.

Question 13

User Datagram Protocol (UDP)

Answer 13

An unreliable, connectionless protocol of the Transport layer.