Computer Networks Flashcards
What is a computer network?
A computer network is a collection of computers and devices connected together to share resources and information.
True or False: A LAN (Local Area Network) covers a large geographical area.
False
Fill in the blank: A ________ is a device that forwards data packets between computer networks.
router
What does the term ‘bandwidth’ refer to in a network?
Bandwidth refers to the maximum rate of data transfer across a network.
Which of the following is a common protocol used for web traffic? A) FTP B) HTTP C) SMTP
B) HTTP
What is a WAN (Wide Area Network)?
A WAN is a telecommunications network that extends over a large geographical area.
What is the primary function of a firewall?
The primary function of a firewall is to monitor and control incoming and outgoing network traffic based on predetermined security rules.
Define the term ‘IP address’.
An IP address is a unique identifier assigned to each device on a network that uses the Internet Protocol for communication.
True or False: Ethernet is a protocol used for wireless networking.
False
What is the purpose of a network topology?
A network topology defines the arrangement of different elements (links, nodes, etc.) in a computer network.
Fill in the blank: A ________ network topology connects all devices to a central hub.
star
Which device is used to connect multiple devices in a LAN?
Switch
True or False: The Internet is an example of a WAN.
True
What is the main advantage of using fiber optic cables over copper cables?
Fiber optic cables have a higher bandwidth and can transmit data over longer distances without loss.
Which technology uses radio waves for communication?
Wireless networking
True or False: TCP is a connection-oriented protocol.
True
State 2 advantages of a computer network
•File sharing
•Hardware Sharing
•Communication
•Centralised Updates and Security
State 2 disadvantages of computer networks
•Cost
•Spread of malware
•Hacking
•Management
LAN definition + an example
Network confined to one site
School or in homes
Wan definition + example
Spread across a country or the world
Internet