OSI Model

Question 1

Addressing

Answer 1

Describing where data should go

Question 2

Encapsulation

Answer 2

Describing how data messages should be packaged for transmission

Question 3

PDU

Answer 3

Protocol data unit - network packet encapsulating a data payload from an upper layer protocol with header fields used at the current layer

Question 4

Signaling

Answer 4

The process of transmitting and receiving encoded data over the network medium. A modulation scheme describes how electrical, light, or radio signals represent bits. Timing and synchronization schemes ensure senders and receivers can identify groups of signals as a chunk or frame of data.

Question 5

Transceiver

Answer 5

The part of a network interface that sends and receives signals over the network media

Question 7

Repeater

Answer 7

A device that amplifies an electronic signal to extend the maximum allowable distance for a media type

Question 8

Hub

Answer 8

A multiport repeater, deployed as the central point of connection for nodes

Question 9

Media converter

Answer 9

A device that converts one media signaling type to another