Computer science yr7

Question 1

What is a network?

Answer 1

A network is a collection of computers and devices interconnected by communication channels that allow sharing of resources and information.

Question 2

True or False: A Local Area Network (LAN) covers a large geographic area.

Answer 2

False

Question 3

What does the acronym WAN stand for?

Answer 3

Wide Area Network

Question 4

Fill in the blank: The primary protocol used for transmitting data over the Internet is ______.

Answer 4

TCP/IP

Question 5

What is the function of a router in a network?

Answer 5

A router directs data packets between different networks.

Question 6

Multiple Choice: Which of the following is a type of network topology? A) Star B) Circle C) Square D) Triangle

Answer 6

A) Star

Question 7

What is the purpose of a firewall?

Answer 7

A firewall is used to protect a network by controlling incoming and outgoing traffic based on predetermined security rules.

Question 8

True or False: Peer-to-peer networks do not require a central server.

Answer 8

True

Question 9

What is bandwidth?

Answer 9

Bandwidth is the maximum rate of data transfer across a network path.

Question 10

Fill in the blank: The process of dividing a network into smaller, manageable pieces is called ______.

Answer 10

subnetting

Question 11

What does VPN stand for?

Answer 11

Virtual Private Network

Question 12

Multiple Choice: Which protocol is used for secure data transmission over a computer network? A) HTTP B) FTP C) HTTPS D) SMTP

Answer 12

C) HTTPS

Question 13

What is latency in networking?

Answer 13

Latency is the time it takes for a data packet to travel from the source to the destination.

Question 14

True or False: A switch operates at the network layer of the OSI model.

Answer 14

False

Question 15

What is the primary purpose of DNS?

Answer 15

The Domain Name System (DNS) translates domain names into IP addresses.

Question 16

Fill in the blank: A device that connects two or more networks and forwards packets between them is called a ______.

Answer 16

router

Question 17

What is the maximum length of a CAT5 Ethernet cable?

Answer 17

100 meters

Question 18

Multiple Choice: Which layer of the OSI model is responsible for data encryption? A) Application B) Presentation C) Session D) Transport

Answer 18

B) Presentation

Question 19

What is the role of an access point in a wireless network?

Answer 19

An access point allows wireless devices to connect to a wired network.

Question 20

True or False: IPv6 addresses are 128 bits long.

Answer 20

True

Question 21

What is a MAC address?

Answer 21

A MAC address is a unique identifier assigned to a network interface for communication on the physical network segment.

Question 22

Fill in the blank: The network model that uses layers to standardize communication is known as the ______ model.

Answer 22

OSI

Question 23

What does the acronym DHCP stand for?

Answer 23

Dynamic Host Configuration Protocol

Question 24

Multiple Choice: Which of the following protocols is used for email transmission? A) FTP B) HTTP C) SMTP D) SNMP

Answer 24

C) SMTP

Question 25

What is the difference between a public IP address and a private IP address?

Answer 25

A public IP address is accessible over the Internet, while a private IP address is used within a local network and not routable on the Internet.

Question 26

True or False: Network topology refers to the arrangement of different elements (links, nodes, etc.) in a computer network.

Answer 26

True

Question 27

What is the function of a modem?

Answer 27

A modem modulates and demodulates signals for data transmission over telephone lines or cable systems.