Pre-Test Network Device

What does Wi-Fi stand for?

• Wireless Internet Frequency Interlink
• Wireless Fast Internet
• Wireless Fidelity

Can a computer or smartphone connect directly to the internet?

• Yes
• No

Can a computer or smartphone connect to the internet without a network device?

• Yes
• No

What is a network?

• A single, standalone computer used for processing and storing information locally.
• A collection of independent computers and devices connected together to allow for the sharing of data and resources.
• Software that allows you to browse the internet.

What is the function of a router in a network?

• To convert digital signals into analog signals, enabling internet access through telephone lines.
• To filter unwanted network traffic and protect devices from malware and unauthorized access.
• To connect different and independent IP networks, forwarding data packets between them based on destination IP addresses to ensure efficient inter-network communication

What is the difference between a hub and a switch?

• A hub filters network traffic based on IP addresses, preventing unauthorized access, while a switch encrypts all data transmissions for enhanced security.
• A hub creates multiple collision domains for each port, while a switch operates within a single broadcast domain for all connected devices.
• A hub broadcasts every incoming data frame to all connected ports without distinguishing recipients, whereas a switch intelligently forwards frames only to the intended destination port.

What is a modem?

• To filter unwanted data packets and block malicious software from entering a computer network.
• To convert digital signals from a computer into analog signals suitable for transmission over various physical lines (like cable or fiber) and vice versa, enabling communication with an Internet Service Provider.
• To assign unique IP addresses to all devices within a local network and manage internal network traffic.

What is an access point?

• To bridge wireless devices to a wired network, acting as a central transmitter and receiver of wireless signals
• To convert signals from a cellular network into Wi-Fi signals for mobile devices.
• To serve as the central hub for all internet traffic, directing data between a local network and the internet.

What is the difference between an access point and a repeater?

• An Access Point prioritizes network traffic to ensure quality of service for video streaming, whereas a Repeater establishes secure VPN tunnels for remote network access and data encryption.
• An Access Point is chiefly responsible for converting digital computer signals into analog signals for internet transmission, and a Repeater manages all IP address assignments for local network devices.
• An Access Point connects wireless clients directly to a wired network backbone, while a Repeater wirelessly re-broadcasts an *existing* Wi-Fi signal to amplify its coverage.

What is the correct name of the hardware component that allows a computer or device to connect to a network?

• The Central Processing Unit (CPU), which serves as the computer's primary brain for executing instructions and managing all fundamental operations.
• The Digital Modulator-Demodulator (modem), which primarily converts internet signals for transmission over various physical lines to an Internet Service Provider.
• The Network Interface Card (NIC), which translates data between the computer's internal components and the external network communication medium.