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WorksheetsDigital Systems
Total questions: 18
Worksheet time: 9mins
What is the main difference between a Local Area Network (LAN) and a Wide Area Network (WAN)?
LAN covers a large geographical area, while WAN is limited to a single building
LAN is a private network within a small area, while WAN connects multiple LANs over large distances
WAN is faster than LAN
WAN does not require any networking hardware
Which of the following is NOT a type of wireless data transmission?
Radio
Ethernet
Satellite
Microwave
What is the primary purpose of cloud computing?
To allow users to access storage and computing resources without physical infrastructure
To provide internet services
To improve WiFi speed
To create a secure local network
What is a computer virus?
A security tool used to remove malware
A networking device used for secure connections
A type of malware that spreads between computers, causing damage to data and software
A hardware failure that slows down a computer
How does a Trojan Horse virus operate?
It self-replicates and spreads to other computers automatically
It encrypts user data to prevent unauthorized access
It blocks access to specific websites
It disguises itself as a legitimate program and tricks users into installing it
What is phishing?
A security protocol used in encryption
A method of securely transferring data
A type of networking hardware
A cyberattack that attempts to steal personal information by tricking users into revealing details
What is the purpose of encryption in network security?
To speed up internet connections
To prevent malware from spreading
To scramble data so it cannot be read if intercepted
To allow all network devices to communicate freely
What is the function of a firewall?
It encrypts all data sent over a network
It prevents overheating of network hardware
It monitors and controls network traffic, blocking unrecognized IP addresses
It physically blocks internet cables from being cut
What is a WEP key used for?
To secure data transfer over a wireless network through encryption
To physically lock a computer
To increase the internet speed
To allow devices to connect to a network without security checks
What is the role of a server in a network?
It provides large storage space and manages network operations
It connects home networks to the internet
It acts as a firewall to protect against malware
It allows only wired devices to connect
What is the main function of a switch in a network?
To prevent unauthorised users from accessing the network
To provide wireless internet access
To replace the need for a modem
To connect multiple devices to a network and allow communication
How is a modem different from a router?
A modem connects to the internet, while a router connects multiple devices to the network
There is no difference between a modem and a router
A router connects to the ISP, while a modem distributes internet within a network
A modem is only for wired connections, while a router is only for wireless connections
What are Integrated Service Routers (ISRs)?
Devices that combine modem, router, firewall, and switching functions in one
Special servers used for data storage
A type of computer virus
A cloud computing service
What is the purpose of a Network Interface Card (NIC)?
To protect computers from viruses
To provide extra storage space
To allow a device to connect to a network, either wired or wirelessly
To act as a firewall
Which of the following is NOT a type of wireless data transmission?
Radio
Ethernet
Satellite
Bluetooth
What is the primary purpose of cloud computing?
To increase internet speed
To allow users to store and access data remotely without physical infrastructure
To protect networks from cyber threats
To create a direct connection between LAN and WAN networks
What is a computer virus?
A type of malware that spreads between computers, causing damage to data and software
A computer hardware failure that slows down performance
A program used to boost internet speed
A feature of an antivirus program that removes malware
What is the function of a firewall?
It increases the processing speed of network devices
It encrypts all data on a computer
It allows multiple devices to connect to the internet
It prevents unauthorized access to a network by monitoring traffic
