Network Prelims

Question 1

Information conveyed

Answer 1

Data payload

Question 1

Data unit switched and transmitted on the network

Answer 1

Packet

Question 2

Information segment added before the data payload

Answer 2

Header

Question 3

Information segment added after the data payload

Answer 3

Tail

Question 4

Process of adding a header and a tail to a data payload to form a new packet

Answer 4

Encapsulation

Question 5

Process of removing the header and tail from a packet to obtain the data payload

Answer 5

Decapsulation

Question 6

Network device that provides functions such as protocol conversion, route selection, and
data exchange

Answer 6

Gateway

Question 7

Network device that selects a forwarding path for packets

Answer 7

Router

Question 8

End device of a data communication system, used as a sender or receiver of data

Answer 8

Terminal device

Question 9

Communication network that consists
of routers, switches, firewalls, access
controllers (ACs), access points (APs),
PCs, network printers, and servers

Answer 9

Data communication network

Question 10

a device closest to end users, used to access the network and switch data frames

Answer 10

Switch

Question 11

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

Answer 11

Router

Question 12

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

Answer 12

Firewall

Question 13

is a network that consists of computers, servers, and network devices in a geographic area.

Answer 13

LAN

Question 14

a computer communication network established within a city.

Answer 14

MAN

Question 15

generally covers a large geographical area ranging from tens of square kilometers to thousands of square kilometers.

Answer 15

WAN

Question 16

is a structured layout presented using transmission media (such as twisted pairs and optical fibers) to interconnect various devices (such as computer terminals, routers, and switches).

Answer 16

network topology

Question 17

classified into star, bus, ring, tree, full-mesh, and partial-mesh network topologies

Answer 17

Network topologies

Question 18

refers to planning and designing feasible solutions based on network application requirements and computer network
system standards

Answer 18

Network engineering

Question 19

technology professionals who master professional network technologies, have professional skills, professionalism, and
project implementation experience in the network engineering field

Answer 19

Network engineers