The unit of data sent or received at the application layer.

• message

• datagram

• frame

• packet

The unit of data sent or received at the network layer.

• message

• datagram

• frame

• bit

The unit of data sent or received at the data-link layer.

• message

• datagram

• frame

• segment

Which of the following data units is encapsulated in a frame?

• message

• datagram

• user datagram

• segment

Which of the following data units is decapsulated from a user datagram?

• message

• datagram

• frame

• segment

A vehicle for accessing the World Wide Web (www).

• Hypertext Transfer Protocol (HTTP)

• Simple Network Management Protocol (SNMP)

• File Transfer Protocol (FTP)

• Internet Group Management Protocol (IGMP)

The port address is used in the ____________ layer of TCP/IP.

• application

• transport

• network

• data-link

The logical address is used in the ____________ layer of TCP/IP.

• application

• transport

• network

• data-link

The specific addresses (ex. e-mail address and URL) is used in the ____________ layer of TCP/IP.

• application

• transport

• network

• data-link

The physical addresses is used in the ____________ layer of TCP/IP.

• application

• transport

• network

• data link