220-1201 Online Practice Questions

Explanation:
D. Crimper:
A crimper is used to terminate an RJ45 cable properly by attaching the connector to the twisted-pair wires.
If the termination is not done correctly, the connection will be intermittent or fail entirely.
Incorrect Options:
A. Toner probe: Used to locate cables or trace their path, not for terminating RJ45 connectors.
B. Cable tester: Useful for testing connectivity but does not fix termination issues.
C. Punch down: Used to connect wires to a patch panel or keystone jack, not for RJ45 connectors.
Key Takeaway: A crimper is the proper tool for fixing an improperly terminated RJ45 connection.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 2.8 C Using appropriate tools for network troubleshooting.

Explanation:
Physical damage from dropping a tablet may often affect ports or connectors. Before taking deeper diagnostic or replacement steps, it's important to visually inspect the USB-C charging port for damage or debris. If the port is damaged, charging issues can occur regardless of battery health.
#Reference: "CompTIA A+ All-in-One Exam Guide, 11th Edition" by Mike Meyers C Chapter 25, "Maintaining and Securing Mobile Devices", page 879.

Explanation:
If a hard drive is heavily fragmented, file read/write operations can take significantly longer, causing slow backup speeds. Defragmenting the drive organizes the data for more efficient access.
Why Not A (Replace the hard drive's USB cable): A faulty cable would typically cause disconnections or errors, not just slower speeds.
Why Not C (Update the storage drivers): This might help if the issue is with system drivers, but the described symptoms point to a fragmentation issue.
Why Not D (Compress the files): Compression reduces file size but does not address the root cause of the slow backups.
CompTIA A+ Exam
Reference: Core 2 (220-1102), Section 3.1, storage troubleshooting.

Explanation:
When delivering 10Gbps speeds over long distances, fiber optic cables are the best choice. Here’s the breakdown:
A. Multimode Fiber (Correct Answer):
Multimode fiber is designed for relatively short to medium distances (up to 1,312 feet or 400 meters) while supporting high-speed data transfer (10Gbps and above).
It uses LED light sources and is cost-effective for environments like data centers or within buildings.
For the specified distance of over 328ft but under 1,312ft, multimode fiber is the most suitable option.
Incorrect Options:
B. Single-mode Fiber: While single-mode fiber supports much greater distances (up to several miles or kilometers) and higher speeds, it is more expensive and unnecessary for the specified range. Single-mode fiber is generally used for long-haul networking or telecommunications.
C. Cat 6a: Cat 6a is capable of 10Gbps speeds but only up to 328ft (100 meters). It cannot reliably handle the specified distance of over 328ft.
D. Cat 6: Cat 6 is also limited to 10Gbps speeds at distances up to 328ft (100 meters). Beyond this range, it is unsuitable.
Key Takeaway:
For delivering 10Gbps speeds over distances longer than 328ft (100m) but under 1,312ft (400m), Multimode Fiber is the best choice due to its ability to support high-speed data over medium distances at a reasonable cost.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 3.1 C Cable types and their characteristics, including fiber optic cables.