CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 511:

  The Wi-Fi network in the office is experiencing slow connection speeds. Which of the following should the technician check first on the access point?

  A. Transmit power settings

  B. Security settings

  C. Firmware version

  D. Location

  Correct Answer: D

  D. Location

  When experiencing slow Wi-Fi connection speeds, one of the first things to check is the physical location of the access point. The placement of the access point can significantly impact signal strength and coverage. Ensure that the access point is positioned optimally to provide good coverage throughout the office.

• Question 512:

  A new VolP solution is being implemented at a corporate office for more than 200 users. The new VolP devices do not require AC adapters at the users' desks. Which of the following network devices should a technician purchase?

  A. Firewall

  B. Power injector

  C. PoE switch

  D. Router

  Correct Answer: C

  Explanation: The correct answer is C. PoE switch.

  A PoE switch is a network device that can provide both data and power to other devices over an Ethernet cable. PoE stands for Power over Ethernet, which is a technology that allows electrical power to be transmitted along with data on twisted pair Ethernet cabling. This eliminates the need for separate power supplies or AC adapters at the users' desks, as the VoIP devices can receive power from the PoE switch12. A firewall is a network device that monitors and controls incoming and outgoing network traffic based on predefined security rules. It does not provide power to other devices1. A power injector is a device that adds electrical power to an Ethernet cable for a single device. It is not suitable for a large number of devices, as it would require one power injector per device1. A router is a network device that connects multiple networks and forwards data packets between them. It does not provide power to other devices1.

• Question 513:

  A technician is building a budget PC with a dual-core CPU, onboard sound and graphics, and a single SSD. Which of the following power supply wattage levels is the most appropriate?

  A. 400W

  B. 850W

  C. 1,000W

  D. 2,000W

  Correct Answer: A

• Question 514:

  A user reports intermittent connectivity. The technician checks the network logs and sees the following output:

  Interface 0/1 Status Up

  Interface 0/1 Status Down

  Interface 0/1 Status Up 13:03:20

  Interface 0/1 Status Down 13:04:10

  Switch elected as Root bridge

  Interface 0/1 Status Up 13:05:40

  Which of the following is the most likely reason for this issue?

  A. External interference

  B. High latency

  C. Jitter

  D. Port flapping

  Correct Answer: D

  Port flapping, also known as link flapping, is a situation in which a physical interface on the switch continually goes up and down, causing intermittent connectivity for the devices connected to that port12. Port flapping can be caused by various factors, such as faulty or incompatible cables, hardware issues, configuration errors, or other network problems123. The network logs show that interface 0/1 on the switch changes its status from up to down and vice versa several times within a short period of time. This indicates that the port is flapping and affecting the network connectivity. The log also shows that the switch was elected as the root bridge, which means that it is the central point of a spanning tree protocol (STP) network. STP is a protocol that prevents loops in a network by blocking some ports and creating a tree-like topology. Port flapping can cause STP to recalculate the topology and change the status of the ports, which can further disrupt the network performance2. To troubleshoot port flapping, the technician should check the physical and hardware aspects of the device, such as cables, SFPs, gigabit interface converters, and power supplies. The technician should also check the configuration settings of the port, such as auto-negotiation, duplex mode, speed, power-saving features, and smartport. The technician should also check for other network issues that may cause port flapping, such as link synchronization and spanning tree issues123.

• Question 515:

  A user can make and receive voice calls but cannot send or receive MMS text messages on a smartphone. Which of the following is the most likely cause of the issue?

  A. The mobile data service is disabled.

  B. The SIM card is defective.

  C. The device is outside the cellular coverage area.

  D. Airplane mode is enabled.

  Correct Answer: A

  MMS (Multimedia Messaging Service) is a type of text message that can include images, videos, audio, or other media files. Unlike SMS (Short Message Service), which only uses cellular networks, MMS requires mobile data service to send and receive messages. Therefore, if the mobile data service is disabled on the smartphone, the user will not be able to send or receive MMS messages, even if they can make and receive voice calls using the cellular network.

• Question 516:

  Which of the following is the best way to protect the data of a virtual machine in the event of hardware failure?

  A. Redundant hardware

  B. UPS

  C. Cloud-based backup

  D. RAID

  Correct Answer: C

  Cloud-based backup is the best way to protect the data of a virtual machine, as it allows the data to be stored in a remote location that is accessible from anywhere. Cloud-based backup also provides scalability, security, and reliability for data protection3. References: [Cloud Backup]

• Question 517:

  A user's brand new phone froze while information was being transferred from the old phone. When a technician reset the new phone, it functioned properly when a data transfer was not being attempted. When the technician tested the old phone, it did not appear to have any functionality issues and passed all forms of device testing. Which of the following is the most likely reason the data transfer failed?

  A. The older phone had a different OS version.

  B. The older phone had a corrupted OS.

  C. The older phone had different hardware.

  D. The older phone utilized different wireless protocols.

  Correct Answer: A

• Question 518:

  A PC's boot drive is showing signs of imminent failure, and a technician needs to recover the data. Which of the following should the technician do first?

  A. Clone the drive to another one.

  B. Access the Device Manager.

  C. Download the drive manufacturer's diagnostic tool.

  D. Uninstall the drive in the Device Manager.

  E. Replace the drive with a new one.

  Correct Answer: A

  The first step to recover data from a failing drive is to clone the drive to another one, which means creating an exact copy of the drive's contents, including the operating system, applications, files, and settings, to a new drive. Cloning the drive can preserve the data and prevent further damage or data loss from the failing drive. Cloning the drive can also allow the technician to boot from the new drive and access the data normally, without needing to reinstall the operating system or the applications12. The other options are not as effective or relevant as cloning the drive. Accessing the Device Manager may not help with data recovery, as it is a tool that displays and manages the hardware devices and drivers on a PC. The Device Manager may show the status of the failing drive, but it cannot copy or restore the data from it3. Downloading the drive manufacturer's diagnostic tool may help with identifying and repairing some errors or issues with the drive, but it may not be able to recover the data if the drive is physically damaged or corrupted. The diagnostic tool may also overwrite or erase some data during the repair process, which can make the data recovery more difficult or impossible4. Uninstalling the drive in the Device Manager may not help with data recovery, as it removes the drive from the system and its driver from the operating system. Uninstalling the drive may make the drive inaccessible or unrecognized by the PC, which can prevent the data recovery5. Replacing the drive with a new one may not help with data recovery, as it does not transfer the data from the old drive to the new one. Replacing the drive may also require reinstalling the operating system and the applications, which can take time and effort. Replacing the drive may also discard the old drive, which may still contain some recoverable data. References: CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 3: Hardware, Section 3.3: Storage Devices, Page 140 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) ram, Chapter 3: Storage, Section 3.5: Disk Management, Page 107 CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 2: Operating Systems, Section 2.4: Device Manager, Page 84 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) ram, Chapter 3: Storage, Section 3.6: Troubleshooting Storage Devices, Page 111 CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 2: Operating Systems, Section 2.4: Device Manager, Page 85 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) ram, Chapter 3: Storage, Section 3.6: Troubleshooting Storage Devices, Page 112

• Question 519:

  A technician is setting up a projector for a videoconferencing system. The laptop that the technician is using is set to the correct resolution. The projector is receiving a signal, but the image is distorted. Which of the following most likely explains the issue?

  A. The projector's aspect ratio is set incorrectly.

  B. The laptop's video card has failed.

  C. The projector's bulb is burned out.

  D. The display brightness needs to be adjusted.

  Correct Answer: A

  Explanation: The most likely explanation for the distorted image on the projector is that the projector's aspect ratio is set incorrectly. The aspect ratio is the ratio of the width to the height of the image, and it affects how the image is displayed

  on the screen. If the aspect ratio of the projector does not match the aspect ratio of the laptop, the image may appear stretched, squashed, cropped, or letterboxed.

  To fix the distorted image, the technician should follow these steps:

  Check the aspect ratio of the laptop and the projector. The aspect ratio of the laptop can be found in the display settings of the operating system, such as Windows or Mac OS. The aspect ratio of the projector can be found in the user manual

  or the on-screen menu of the projector. Common aspect ratios are 4:3,

  16:9, and 16:10.

  Adjust the aspect ratio of the projector to match the aspect ratio of the laptop. The technician can use the remote control or the buttons on the projector to access the on-screen menu and select the appropriate aspect ratio option. Some

  projectors may have a dedicated aspect ratio button on the remote control or the projector itself.

  Verify that the image is displayed correctly on the screen. The technician can use the zoom, focus, or keystone buttons on the projector or the remote control to fine- tune the image quality and alignment.

  References:

  How to Fix Projector Display Problems - Projectors Tab1 Correcting Distorted Projector Images - Projector Repair World Hyd2 How to Adjust the Aspect Ratio on a Projector - Lifewire

• Question 520:

  An engineer is setting up two-factor authentication so users can access a company's human resources system. Which of the following should the engineer require users to do?

  A. Use a mobile authenticator application.

  B. Connect to the company's Wi-Fi.

  C. Connect through the VPN.

  D. Use a bastion server.

  Correct Answer: A

  Two-factor authentication (2FA) is a method of verifying a user's identity by requiring two pieces of evidence: something the user knows (such as a password) and something the user has (such as a device). A mobile authenticator application is a software program that runs on a smartphone or tablet and generates a one-time code or token that the user can enter along with their password to access a system. This adds an extra layer of security to prevent unauthorized access.