Microsoft Networking Essentials Exam Network Hardware & Infrastructure 2 — Questions and Answers
Question 1: Which connector type is standard for most modern Ethernet twisted-pair cables?
- BNC
- RJ-11
- RJ-45 (Correct answer)
- SC
Correct answer: RJ-45
RJ-45 connectors are the standard 8-pin connectors used for Ethernet twisted-pair network cables (Cat 5e, Cat 6, etc.).
Question 2: What is the difference between a hub and a switch?
- A hub is faster than a switch
- A hub broadcasts to all ports; a switch forwards only to the destination port (Correct answer)
- A switch operates at Layer 1; a hub at Layer 2
- A hub uses IP addresses; a switch uses MAC addresses
Correct answer: A hub broadcasts to all ports; a switch forwards only to the destination port
A hub broadcasts incoming data to all connected ports (Layer 1), while a switch intelligently forwards data only to the specific port of the destination device using MAC addresses (Layer 2).
Question 3: Which type of fiber optic cable is designed for long-distance transmission and uses a single light path?
- Multimode fiber
- Single-mode fiber (Correct answer)
- Plastic optical fiber
- Coaxial fiber
Correct answer: Single-mode fiber
Single-mode fiber has a smaller core diameter that allows only one light path, enabling transmission over much greater distances with less signal loss than multimode fiber.
Question 4: What is a VLAN used for in a network?
- Extending Wi-Fi range
- Logically segmenting a network without physical separation (Correct answer)
- Assigning public IP addresses
- Encrypting network traffic
Correct answer: Logically segmenting a network without physical separation
A VLAN (Virtual Local Area Network) logically segments network devices into separate broadcast domains without requiring physical separation, improving security and traffic management.
Question 5: What is the primary purpose of a patch panel in a network infrastructure?
- Amplify network signals
- Provide a central point for organizing and connecting network cables (Correct answer)
- Route traffic between VLANs
- Assign IP addresses to devices
Correct answer: Provide a central point for organizing and connecting network cables
A patch panel provides a centralized, organized termination point for network cabling, making it easier to manage and reconfigure network connections in a data closet.
Question 6: Which wireless network standard introduced MIMO (Multiple Input, Multiple Output) technology?
- 802.11a
- 802.11b
- 802.11g
- 802.11n (Correct answer)
Correct answer: 802.11n
IEEE 802.11n introduced MIMO technology, which uses multiple antennas to transmit and receive data simultaneously, significantly increasing throughput and range.
Microsoft Networking Essentials Exam Network Hardware & Infrastructure 2
Which connector type is standard for most modern Ethernet twisted-pair cables?