CompTIA Updated 220-1101 Exam Questions and Answers by kayson

Single-mode fiber uses a beam of light to transmit data over long distances through a very thin, flexible cable. It is commonly used for high-speed data transmission across wide areas, such as between buildings or over long distances within a network. Single-mode fiber offers a higher bandwidth and longer distance capabilities compared to other types of fiber optics.

D. Single-mode fiber: Transmits data using light through a fiber optic cable, making it ideal for long-distance communication.

Why the other options are incorrect:

A. Coaxial: Coaxial cables use electrical signals, not light, to transmit data.

B. HDMI: HDMI (High-Definition Multimedia Interface) is used for transmitting audio and video signals but does not use light for data transmission.

C. Thunderbolt: Thunderbolt cables transmit data using electrical signals and are typically used for high-speed data transfer and display connections.

This falls under the Networking and Hardware domain in the CompTIA A+ Core 1 exam​.

Step by Step Detailed Comprehensive Explanation with All CompTIA References:

Analysis of the Problem:

Multiple peripherals are non-functional, and the USB-C hub is a common point of failure.

Option Evaluation:

A. Verify the AC adapter voltage: Power issue could cause shutdowns, not device failure. Incorrect.

B. Repair the operating system: Not relevant since alternate devices are tested. Incorrect.

C. Replace the user's USB-C hub: Faulty hubs cause multiple peripheral failures. Correct.

D. Reinstall the drivers for affected devices: Driver issues wouldn’t affect all peripherals. Incorrect.

E. Make sure the printer is not drawing too much power: This is uncommon for peripherals via a hub. Incorrect.

A valid public IP address must fall outside the private IP address ranges:

10.0.0.0 to 10.255.255.255

172.16.0.0 to 172.31.255.255

192.168.0.0 to 192.168.255.255

66.157.195.20 is outside these ranges, making it a public IP address.

Why Not A, C, D: These IPs fall within private IP address ranges.

CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.6, IP addressing​.

Mobile Application Management (MAM) enforces policies restricting access to apps and services based on location, ensuring security at external sites.

Why Not A (MOW): "Mobile Only Workplace" (MOW) is not a recognized term in this context.

Why Not B (MAN): Metropolitan Area Network (MAN) is unrelated to mobile device policies.

Why Not C (MFA): Multi-Factor Authentication secures user accounts but does not enforce app restrictions.

CompTIA A+ Exam Reference: Core 2 (220-1102), Section 2.7, mobile device security policies​.