CompTIA Updated 220-1201 Exam Questions and Answers by gethin

Overheating is a common cause of projectors shutting down after extended use. A clogged air filter can cause overheating, resulting in intermittent shutdowns.

From CompTIA A+ 220-1101 Official Study Guide, Objective 4.1 – Troubleshooting displays:

“If a projector shuts down after running for a period, clean or replace the filter to prevent overheating and automatic shutdown.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Display Troubleshooting

CompTIA Exam Objectives 220-1101, Domain 4.1

============

The virtualization platform described matches the characteristics of containers. According to CompTIA Core 1 (220-1201) virtualization concepts, containers are lightweight virtualization solutions that share the host operating system and kernel, rather than running separate guest operating systems. This design allows containers to start almost instantly and be deployed rapidly, making them highly efficient and scalable.

Because containers share kernel resources, they use significantly fewer system resources compared to traditional virtual machines. However, this also results in limited isolation, since applications are not fully separated at the OS level. This tradeoff is a defining characteristic of container-based virtualization.

A Type 1 hypervisor runs directly on hardware and hosts fully isolated virtual machines, each with its own operating system, which does not align with the shared OS and kernel described. A virtual machine also includes a full guest OS, leading to slower startup times and greater resource usage. A virtual desktop refers to user desktop virtualization, not application-level virtualization.

CompTIA highlights containers as an example of application virtualization that prioritizes speed, efficiency, and portability over complete isolation.

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. Punchdown: 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.

A distorted image where the screen is not symmetrical (wider at the top or bottom) is typically due to keystone distortion. Adjusting the projector ' s keystone settings corrects this trapezoidal effect caused by an angled projection.