Internet and Network Basics
A group of two or more computers linked together to share resources and exchange files
network
This device boosts the signal of an existing Wi-Fi network to extend coverage to areas with weak reception.
Wifi Extender
Which type of network connects devices within about 10 m around an individual, often using Bluetooth?
PAN
Which type of network between wired and wireless is generally faster and more stable?
Wired
Which common form of malicious code needs a user to run a host program in order to replicate?
Virus
What is the global system of interconnected autonomous networks that links devices worldwide?
the internet
This device converts digital signals from a computer into signals suitable for transmission over telephone or cable lines.
modem
Which type of network connects devices in a single location—such as a school or office—and may use Ethernet cables and switches?
LAN (local area network)
Which kind of network typically has lower latency—wired or wireless?
Wired
Which self‑replicating malware spreads across networks without needing a host program?
Worm
What do you call a set of rules that define how data is formatted, transmitted, and received over the Internet or a network. Example HTTP, TCP/IP etc.
Protocols
This device connects multiple devices in a network and forwards data based on MAC addresses.
Switch
Which network topology has all devices connected to a central hub, so the failure of one link doesn’t affect others?
Star topology
Which wired transmission medium uses light pulses to transmit data at very high speeds over long distances?
Firbe Optics
Which malware disguises itself as legitimate software, can spy or open backdoors for attackers?
Trojan Horse
What are the two addressing versions of IP adresses used to identify devices on the Internet?
IPv4 and IPv6
This device connects a local network to the Internet and routes data between them.
router
In which topology does each device connect to exactly two others, forming a closed loop?
Ring Topology
What does “Wi-Fi” stand for?
Wireless Fidelity
Which malware records keystrokes to steal sensitive information like passwords?
Keylogger/Spyware
What is the unique numerical label assigned to each device on a network, such as 192.168.1.1?
IP address
This card, installed in a computer or device, allows it to connect to a network.
NIC
Which type of network interconnects multiple LANs across countries or continents?
WAN
Which Wi-Fi standard, introduced in 2019, supports faster speeds, better performance in crowded areas, and operates on both 2.4 GHz and 5 GHz bands?
WiFi 6
WannaCry is what type of malware?
Ransomware/worm