Network Basics
This is a system of interconnected devices that can communicate with each other.
What is a network?
The global system of interconnected computer networks.
What is the internet?
This device forwards data between different networks and determines the best path for data to travel.
What is a router?
A type of malicious software that spreads without human intervention.
What is a worm?
The amount of data that can be transmitted over a network in a given amount of time.
What is bandwidth?
The set of rules that dictate how data is transmitted over a network.
What is a protocol?
This protocol is used for securely transferring hypertext documents on the web.
What is HTTPS?
A hardware device that connects multiple computers in a LAN and directs data to the correct recipient.
What is a switch?
This type of attack overwhelms a network or website with excessive traffic, making it unavailable.
What is a DDoS (Distributed Denial of Service) attack?
The two main protocols used to send and receive data packets across the internet.
What are TCP and IP (Transmission Control Protocol & Internet Protocol)?
The unique identifier assigned to each device in a network.
What is an IP address?
The service that translates domain names into IP addresses.
What is DNS (Domain Name System)?
A device that connects computers to a network using cables.
What is a network adapter (or NIC - Network Interface Card)?
The process of encoding data to prevent unauthorized access.
What is encryption?
This protocol is used to securely browse the web by encrypting data transmission.
What is TLS (Transport Layer Security)?
A type of network that connects computers within a small geographical area, such as an office or home.
What is a LAN (Local Area Network)?
A web address used to locate resources on the internet.
What is a URL (Uniform Resource Locator)?
A network component that strengthens and extends a signal over long distances.
What is a repeater?
A security measure that monitors and controls incoming and outgoing network traffic.
What is a firewall?
A system that divides messages into smaller units before transmission.
What is packet switching?
This type of network spans a large geographical area, often across multiple cities or countries.
What is a WAN (Wide Area Network)?
The method of transferring files between a client and a server.
What is FTP (File Transfer Protocol)?
A specialized device that connects different network types, translating communication protocols.
What is a gateway? (or Proxy server)
A fraudulent attempt to obtain sensitive information by pretending to be a trustworthy entity.
What is phishing?
The unique address assigned to each device on a network at the hardware level.
What is a MAC (Media Access Control) address?