CompTIA ITF+ ITF+ Networking Fundamentals 1 — Questions and Answers
Question 1: What does LAN stand for in networking?
- Local Area Network (Correct answer)
- Large Access Node
- Linked Area Network
- Local Access Number
Correct answer: Local Area Network
LAN stands for Local Area Network, which connects devices within a limited geographic area such as a home or office building.
Question 2: Which network topology connects all devices to a single central hub or switch?
- Bus
- Ring
- Star (Correct answer)
- Mesh
Correct answer: Star
In a star topology, all devices connect to a central hub or switch, making it the most common topology in modern LANs.
Question 3: What is the primary purpose of the OSI model?
- To encrypt all network data
- To provide a standardized framework for network communication (Correct answer)
- To assign IP addresses to devices
- To manage wireless radio frequencies
Correct answer: To provide a standardized framework for network communication
The OSI model provides a seven-layer framework that standardizes how different network systems communicate with each other.
Question 4: Which layer of the OSI model is responsible for routing packets between different networks?
- Data Link (Layer 2)
- Network (Layer 3) (Correct answer)
- Transport (Layer 4)
- Session (Layer 5)
Correct answer: Network (Layer 3)
The Network layer (Layer 3) handles logical addressing and routing of packets between networks using protocols like IP.
Question 5: Which networking device connects multiple networks and forwards traffic based on IP addresses?
- Switch
- Hub
- Router (Correct answer)
- Repeater
Correct answer: Router
A router connects multiple networks and uses IP routing tables to forward packets toward their destination networks.
Question 6: Which type of network spans a large geographic area, such as connecting offices across multiple cities?
- LAN
- PAN
- WAN (Correct answer)
- CAN
Correct answer: WAN
A WAN (Wide Area Network) spans large geographic areas, often connecting multiple LANs across cities, countries, or continents.
Question 7: What is the function of a MAC address?
- To identify a device globally on the internet
- To uniquely identify a network interface on a local network (Correct answer)
- To automatically assign IP addresses
- To encrypt network communications
Correct answer: To uniquely identify a network interface on a local network
A MAC (Media Access Control) address is a hardware identifier burned into a network interface card that uniquely identifies it on a local network.
CompTIA ITF+ ITF+ Networking Fundamentals 1
What does LAN stand for in networking?