Refined_Bayonne_Beginner_Card

Question 1

What is the primary function of a Network Interface Card (NIC) in a computer?
1. It provides security for network traffic.
2. It connects a computer to a network.
3. It assigns IP addresses to devices.
4. It functions as a router.

Answer 1

Correct Answer: 2. It connects a computer to a network.

Explanation:
The NIC (Network Interface Card) is responsible for connecting a computer to a network by enabling data packet transmission and reception.

Practical Use:
A wired Ethernet NIC allows desktops in an office to connect to the organization’s LAN for internet access and internal communication.

Why Others Are Incorrect:
1. It provides security for network traffic: This is typically managed by firewalls, not NICs.
2. It assigns IP addresses to devices: IP address assignment is performed by DHCP servers, not NICs.
3. It functions as a router: Routers direct traffic between networks, which is beyond the scope of a NIC.

Exam Objective Reference:
Domain 1.2: Compare and contrast networking appliances, applications, and functions.

Follow-Up Question:
What are the differences between a wired NIC and a wireless NIC in terms of functionality and performance?