220-1101 Exam Dumps - CompTIA A+ Certification Exam: Core 1

Memory modules are physical components that store data and instructions for the computer to access and process. Memory modules have different specifications and features, such as type, speed, capacity, voltage, and form factor. These specifications and features must be compatible with the motherboard and the processor of the computer, otherwise the memory modules may not work properly or cause errors.

In this scenario, the technician is working to replace a single DDR3 RAM module on a laptop that has two occupied slots. DDR3 stands for Double Data Rate 3, and it is a type of memory technology that offers faster performance and lower power consumption than its predecessors. DDR3 RAM modules have different variants, such as DDR3L, DDR3U, or DDR3R, which have different voltage requirements. For example, DDR3L operates at 1.35V, DDR3U operates at 1.25V, and DDR3R operates at 1.5V.

When the technician tries to turn on the laptop, the computer starts beeping and does not pass POST. POST stands for Power-On Self-Test, and it is a process that checks the hardware components and functionality of the computer before loading the operating system. If POST detects an error or a failure, it may produce a series of beeps or codes to indicate the problem. The number and pattern of beeps or codes may vary depending on the manufacturer or model of the computer.

The technician double-checks the newly installed RAM and notices a motherboard message indicating low voltage. This means that the motherboard is not receiving enough power from the memory module to operate normally. This could indicate that the memory module is not compatible with the motherboard or the processor, or that it is defective or damaged. The most likely cause of this issue is that the technician installed an unsupported memory module that has a lower voltage than what the motherboard or the processor requires.

To resolve this issue, the technician should remove the newly installed RAM module and replace it with a compatible one that has the same voltage as the existing ones. The technician should also check the specifications and features of the motherboard and the processor to ensure that they support the type, speed, capacity, and form factor of the memory modules. The technician should also follow proper safety precautions when handling memory modules, such as wearing an anti-static wrist strap, avoiding physical damage or static discharge, and aligning the notches correctly.

In this scenario, running a network cable over a long distance (279ft or 85m) and sharing conduit with a large power cable requires careful consideration of electromagnetic interference (EMI) and the physical distance limitations of the cable type. Fiber optic cables are immune to electromagnetic interference and can support much longer distances than copper-based cables like Cat 5e or Cat 6 without signal degradation. This makes fiber optic the most appropriate choice for this project.

References:

CompTIA A+ Core 1 Exam Objectives Section 3.1: Explain basic cable types and their connectors, features, and purposes.

CompTIA A+ Core 1 Exam Objectives Section 2.2: Compare and contrast common networking hardware.

A VLAN (Virtual Local Area Network) is used to logically segment a network, even though devices are physically connected to the same infrastructure. This allows administrators to separate traffic, improve security, and enhance network management without requiring additional hardware. VLANs are configured through network switches and allow for different devices to communicate as if they were on separate physical networks, even though they share the same physical wiring.

C. VLAN: VLANs provide logical segmentation of networks, allowing groups of devices to be separated despite being connected to the same physical network infrastructure.

Why the other options are incorrect:

A. WLAN: Wireless LAN refers to a wireless network and is not specifically used for logical segmentation.

B. VPN: Virtual Private Network creates secure connections over a public network, such as the internet, but it does not provide logical segmentation of a local network.

D. MAN: Metropolitan Area Network is a type of network that spans a city or large campus but does not deal with logical segmentation on a local scale.

This concept is part of the Networking domain, specifically focusing on VLANs, in the CompTIA A+ Core 1 exam​.

Duplex printing allows printing on both sides of a paper, which can significantly reduce paper consumption and costs associated with buying paper. This makes duplex printing the best feature for cutting costs on consumables.

References:

CompTIA A+ Core 1 Exam Objectives Section 3.6: Given a scenario, deploy and configure multifunction devices/printers and settings.

The digitizer is responsible for detecting touch input, so if the phone is not responding to touch, it is likely the digitizer is malfunctioning.

Intermittent paper feeding issues in a laser printer are commonly caused by dirty or worn-out pickup rollers. Cleaning the rollers can restore proper functionality. This aligns with the CompTIA A+ Core 1 objective related to troubleshooting and maintaining printers, specifically resolving paper feeding issues​.