Comptia A+ part 3

A technician made several upgrades to a computer and then determined the power supplied by the PSU is insufficient. Which of the following would MOST likely cause the insufficiency? (Choose two.)

Replacing the HDD with an SSD

Upgrading the firmware

Adding an optical drive

Adding more RAM

Adding a CMOS battery

Upgrading the graphics card

A technician is replacing a computer with a connected point-of-sale system using a 9-pin serial adapter. The new computer does not have a 9-pin serial port. Which of the following ports can an adapter be installed on in order to connect to the point-of-sale system?

HDMI

Bluetooth

USB

Lightning

Which of the following network types would be used in a server room to connect virtual servers to high-speed storage?

WAN

PAN

MAN

SAN

A desktop support technician is tasked with upgrading a laptop so that it has the fastest data access possible. Which of the following BEST satisfies this requirement?

mSATA SSD

M.2 NVMe SSD

2.5 SATA SSD

2.5 SAS HHD

The Chief Executive Officer wants to ensure company data is stored in a manner that provides the company with complete control over how the data is managed. Which of the following is the BEST cloud deployment model for this request?

Community

Hybrid

Public

Private

A user sends a print job to a network printer, and the print job uses double the amount of paper as expected. Which of the following should the user configure to get the expected result?

Duplex

Collate

Landscape

Transparency

A help desk technician thinks a desktop PC has failed due to a defective power supply. Which of the following steps should the technician take NEXT?

Inquire about environmental or infrastructure changes

Conduct external or internal research based on symptoms

Establish a plan of action to resolve the problem and implement the solution

Document the findings, actions, and outcomes

A startup company is outgrowing its current office space and is requiring employees to work remotely. The company must comply with government-enforced requirements to safeguard all aspects of data, so the IT department plans to maintain complete control over users' operating systems. Which of the following should the IT department implement?

VDI

IaaS

VPN

SaaS

Which of the following would be the BEST reason to use a virtual machine as a sandbox?

To test new software in a safe environment

To increase the efficient use of computing resources

To run multiple machines on the same hardware

To have dedicated hardware for a single system

Which of the following would MOST likely be used to connect one or more devices to the internet in a SOHO?

Hub

Ethernet gateway

Wireless access point

Router

A technician is preparing to set up a gaming computer with the following components:

✑ Discrete, high-end graphics card

✑ Video capture card

✑ High-end processor

✑ Multiple hard drives

✑ USB 3.0 hub

✑ Sound card

Which of the following options is the MOST important for the technician to consider before building the gaming computer?

Redundant power supply

Modular power supply

20-pin vs. 24-pin power adapter

Power supply wattage rating

Which of the following is the PRIMARY security concern with virtual machine escape?

Cross-site scripting

Compromising the hypervisor

Overutilization of resources

Rogue virtual machines installed on the hypervisor

An IT manager is requesting that the company buy new cables to be used with F-type connectors that are already in house. Which of the following cables should the company buy?

Coaxial

Plenum

Cat 5e

Fiber

A user reports a cell phone is getting hot. Which of the following are MOST likely to be possible causes? (Choose three.)

Using the device as a Wi-Fi hotspot

A cracked screen

A failing battery

Less than 15% free storage space on the phone

Privileged control

Recurring prompts to install OS updates

Granting too many application camera permissions

A technician configured a new SOHO router for a small business. The ISP gave the technician an IP address on the router's WAN port. Which of the following addresses did the technician MOST likely configure on the router?

10.1.50.30

19.45.7.28

169.254.168.10

172.22.40.6

A technician is diagnosing a workstation that shuts down unexpectedly during a burn-in test. Which of the following is the MOST likely cause for this symptom?

Faulty CMOS battery

OS update issue

Overheating

Faulty RAM

The help desk received a ticket regarding issues with a laser printer. The printer has had repairs previously for scanning issues. Currently, the printed text is not adhering properly to the paper. Which of the following should be replaced to resolve this issue?

Fuser

Waste container

Roller

Toner

Which of the following types of devices MOST often uses a Thunderbolt cable?

Linux PC

Android mobile

Apple laptop

Chromebook

A department sends in a ticket to report a printer is not working. The responding technician sees paper stuck to the fuser, which is much hotter than normal. The fuser was just installed a few weeks ago, as indicated by the service history. Which of the following should the technician do NEXT?

Disable the printer for repairs

Install a printer roller kit

Remove the paper and let the fuser cool down

Replace the paper with thicker paper stock

A user reports limited or no connectivity on a laptop. A technician runs ipconfig /all with the following result:

IPv4 connectivity...limited or none

IPv4 address...169.254.254.1 - subnet mask...255.255.0.0 default gateway...

Which of the following is the MOST likely cause of this issue?

DHCP failure

ARP cache

DNS resolution

Duplicate IP address

A Wi-Fi mesh network has been optimized to eliminate poor coverage areas, yet users still experience decreased bandwidth and connectivity issues. Which of the following actions should the technician take NEXT?

Relocate any large, dense, solid, and metal objects, such as mirrors and file cabinets, in the mesh network coverage area to the perimeter so that wireless reflections, absorptions, and occlusions are minimized

Use a Wi-Fi analyzer to determine whether the channel in use is overcrowded and to identify which channel the mesh network should use for best performance

Use the signal strength indicator on a mobile device to roam the coverage area and generate a heat map to isolate zones with weak signals

Turn off broadcasting of the SSID on the mesh network so that other networks cannot see it

Which of the following are default ports for HTTP and HTTPS traffic? (Choose two.)

143

389

443

Documents are not printing out correctly from a laser printer at a conference. Some of the print is missing, and the pages come out unreadable. Which of the following should a technician do to fix this issue?

Exchange the transfer roller

Recalibrate the printer

Clear the jam

Replace the fuser assembly

Which of the following is an unsecure remote access protocol?

SSH

HTTPS

SFTP

Telnet

Which of the following cable types is the standard connector on printers?

DVI

ESATA

USB

Lighting

Which of the following is the MAXIMUM power PoE+ provides?

15.4W

30W

60W

95W

A user reports the touch screen on an Android smartphone is not responding to any input. The technician has cleared the cache, restarted the phone, and ensured the phone is fully charged. The issue still persists. Which of the following should the technician replace on the phone to MOST likely resolve the issue?

System on a chip

Accelerometer

Digitizer

Gyroscope

Which of the following is the SAFEST way to replace RAM on a server that has a redundant power supply?

Unplug one power cable

Verify the RAM temperature

Utilize a grounding strap

Replace the RAM while the server is running

A customer is using a satellite internet connection that is experiencing slowness. A technician notices high latency while pinging, but the download test is performing perfectly with very good download speeds. Which of the following represents the NEXT action the technician should perform?

Restart the modem and run an online internet connection and speed diagnostic tool

Guide the customer on how to upgrade the internet plan with the provider in order to improve latency

Explain to the customer this is not an issue; this situation is normal for this type of internet connection

Replace the modem because it is not working correctly based on the test result

An end user contacted a technician about a laser printer that was no longer printing images on the left side of the page. The technician replaced the toner cartridge, but the issue has persisted. Which of the following should the technician perform NEXT?

Replace the imaging drum

Realign the pickup rollers

Clean the duplexing assembly

Calibrate the printer

A systems administrator has been tasked with allowing SMTP traffic through the system's host-based firewall. Which of the following ports should the administrator enable?

161

A technician is monitoring all outbound traffic in a SOHO. Which of the following is the MOST cost-effective solution to monitor the traffic?

Spectrum analyzer

Network tap

Loopback plug

Toner probe

A technician recently discovered the root cause of an application error that several users have been experiencing. The technician updated the configurations on the affected machines and verified full functionality was restored for all users. Which of the following actions should the technician perform NEXT?

Write a knowledge base article in the ticketing software to expedite future incidents

Submit a bug report to the developer of the application, along with the steps taken to resolve the issue

Work with the developer to proactively collect the application logs to identify future errors of this type

Send an email communication to the company about the issue and the steps taken to resolve it

A new employee has been issued a company laptop. The employee requests an accessory with a single power source that has wired network connectivity and supports a keyboard, mouse, speakers, and dual monitors. Which of the following accessories should the systems administrator deploy to BEST meet the new user's needs?

PoE switch

USB-C hub with power delivery

Docking station with DisplayPort

KVM switch with audio

Which of the following describes the operational difference between hubs and switches when transmitting data to a specific computer inside the network?

Switches only send data to the specific computer, while hubs send data to all computers inside the network

Switches compress data, while hubs send uncompressed data

Switches receive data and route it to all computers inside the network, while hubs receive data and do not route

Switches scramble data, while hubs send data in the original form.

Which of the following network devices would an administrator use to distribute traffic evenly throughout multiple nodes?

Load balancer

Bridge

Proxy server

Switch

Firewall

A technician is investigating the output shown on a monitor. The output is clear, but it has a pink hue. The technician has replaced the video card and updated the graphics drivers. Which of the following would be the MOST likely cause?

Physical cabling issues

Burned-out bulb

Display burn-in

Incorrect data source

A technician is implementing a SOHO wireless solution with three access points. Which of the following actions would avoid high latency?

Enabling and configuring a 5GHz antenna

Configuring separate IP range

Enabling multiple SSIDs

Configuring all devices with different channels

In which of the following places is a laptop's wireless antenna MOST likely located?

Near the network interface card

Underneath the battery

Integrated into the motherboard

In the bezel of the lid

A company needs to support a 10Gbps throughput. Which of the following is the MINIMUM cable category that could be used?

Cat 5

Cat 5e

Cat 6

Cat 6a

Which of the following describes the BEST use case for a client-side hypervisor?

For a software developer who is required to test an application in many environments

When the data center environment is out of resources for a new server

As a cost-saving measure to allow multiple users on one computer

To provide a backup to cloud-based solutions during internet failures

A technician needs to install a cost-effective storage device into a rackmount server that will be used as a VM host. This storage will be used for all VMs that run from the server. Which of the following should be used?

Optical disk drive

EMMC storage device

15,000rpm drive

RAID 10 array

A technician installed new firmware on the company's laser printers and has since been receiving multiple calls that information is garbled and looks like code. Only printers with the new firmware are having this issue. Which of the following steps should the technician complete NEXT?

Change the language settings on the printers

Reboot all the machines having the issues

Reboot all the printers

Install an updated printer driver on the print server

A user visits the help desk to report that a smartphone takes more than a day to fully charge. The user already tested multiple wall outlets and swapped the charging cable, but the results are the same. Which of the following should the technician do FIRST?

Verify the power rating of the charger

Ensure all unnecessary connectivity features are disabled

Check that all missing smartphone OS updates are applied

Complete a factory reset of the phone

User attempted to install an application on a desktop, and the installation attempt failed. Technician compares these installation files to those on another user's machine and finds the files are different. Which of the following should the technician do NEXT?

Attempt to reinstall the application

Verify the system functionality

Test the functionality of the antivirus

Complete the final report

Determine the source of the installation file

A technician responds to a help desk ticket that indicates a user's workstation is not booting. The technician initially suspects a failed hard drive. The technician performs diagnostics and confirms the hard drive is fully operational. Which of the following steps should the technician complete NEXT?

Reinstall the operating system

Configure a new RAID array

Report the status of the drive and close the ticket

Consider another possible cause of the issue

Restore the latest backup of the system

A technician is troubleshooting a computer that is not completing POST and gets stuck at the manufacturer logo screen. All internal, removable parts have been disconnected and only the minimum parts necessary to POST were reconnected. However, the symptoms remain the same. Which of the following should the technician try NEXT?

Test the RAM in different slots, one at a time

Remove and test the power supply

Replace the motherboard

Change the CMOS battery

A user who works with sensitive data has a computer configured with hard drive encryption. The TPM is active and hosting the encrypted key. After an upgrade to the motherboard, RAM, and video card, the hard drive is not booting, and data cannot be accessed from the hard drive. Which of the following should the technician do to enable the system to boot again and get access to the stored data?

Use data recovery software to find and recover the hard drive information

Access the BIOS and select to rebuild the degraded RAID array

Boot into the BIOS and enable the TPM on the new motherboard

Return the replaced motherboard back to the computer

A user that works in sales is reporting that the output on each page printed from a laser printer has duplicate images. Which of the following should be performed FIRST to eliminate the ghost images?

Change the paper weight setting

Replace the printer's fuser

Upgrade the printer firmware

Clean the toner drums and rollers

A technician is setting up a laptop with an encrypted hard drive. The laptop will securely store a PIN that the user will input at log-on. Which of the following must be installed to set up this configuration?

TPM

HSM

UEFI

ARM

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