Common Network Devices

Question 1

It is the end-device of the data communication system.
It provides necessary functions required by the user access protocol operations.

This includes data terminal equipment such as a PC, phone, handsets, printers, and servers.

Answer 1

Terminal device

Question 2

is a key component that connects directly to a device that allows access to a network such as an internet or a local network

Answer 2

network interface card (NIC)

Question 3

It is the device closes to end-users, used to access the network and switch data frames.

Answer 3

Switch

Question 4

Switches belonging at the access layer are usually Layer 2 switches , also known as …

Answer 4

Ethernet switches

Question 5

The Ethernet switch can implement the following functions:

Answer 5

• Data frame switching
• Access to end-user devices
• Basis access security functions
• Layer 2 Link redundancy

Question 6

It is a network-layer device that forwards data packets on the Internet.

Answer 6

Router

Question 7

is a device that connects a network to the Internet. It takes signals from your Internet Service Provider (ISP) and translates them into signals connected to the local devices.

Answer 7

Modem

Question 8

It is a network security device used to ensure secure communication between two networks.

Answer 8

Firewall

• It monitors, restricts, and modifies data flow passing through it to shield information, structure, and running status of internal networks from the public network.
• It is located between two (2) networks with different trust levels. (For example, between an intranet and the Internet)
• It controls the communication between the two networks and forcibly implements unified security policies to prevent unauthorized access to important information resources.

Question 9

is a term for a router that provides functions such as protocol conversion, route selection, and data exchange when networks using different architectures or protocols communicate with each other.

Answer 9

Gateway

Question 10

It is a network that uses radio waves, laser, and infrared signals to replace some or all transmission media in a wired LAN.

Answer 10

Wireless Devices

Question 11

applies to homes. It works independently and needs to be configured separately. it has simple functions and low costs

Answer 11

Fat Access Point (Fat AP)

Question 12

applies to medium and large-sized enterprises. It needs to work with the AC and is managed and configured by the AC.

Answer 12

Fit Access Point (Fit AP)

Question 13

is generally deployed at the aggregation layer of the entire network. The AC provides wireless data control services featuring large capacity, high performance, high reliability, easy installation, and easy maintenance

Answer 13

Access Controller (AC)

Question 14

A … is a set of nodes that can receive broadcast packets from a node

Answer 14

broadcast domain