CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 631:

  A technician is upgrading the memory on a server that processes payment information online. Which of the following types of memory would the technician most likely install?

  A. DDR4

  B. VRAM

  C. SODIMM

  D. ECC

  Correct Answer: D

  ECC stands for Error Correction Code, which is a type of memory that can detect and correct data errors that may occur during processing or transmission. ECC memory is commonly used in servers that handle sensitive or critical information, such as payment information online, because it can reduce the risk of data corruption, system crashes, or security breaches12. DDR4 is a generation of DDR technology, which stands for Double Data Rate. DDR4 memory is faster and more power-efficient than its predecessors, but it does not necessarily have ECC functionality. DDR4 memory can be either ECC or non-ECC1. VRAM is Video RAM, which is a type of memory that is dedicated to storing graphics data for display. VRAM is usually found on graphics cards or integrated graphics processors, not on servers3. SODIMM is Small Outline DIMM, which is a type of memory module that has a smaller size and lower profile than regular DIMMs. SODIMMs are typically used in laptops, notebooks, or other compact devices, not on servers3.

• Question 632:

  A customer is reporting that some of the keys at the bottom edge on a laptop are hard to press and the track pad buttons require significant force to click. The technician inspects the laptop and does not notice any cracks or other damage to the chassis or screen. Which of the following is the most likely cause of the issue?

  A. The customer dropped the laptop.

  B. The digitizer has failed.

  C. The battery is swollen.

  D. An open bottle of rubbing alcohol fell onto the keyboard.

  Correct Answer: C

  A swollen battery is the most likely cause of the issue that the customer is reporting. A swollen battery is a battery that has expanded in size due to a chemical reaction, gas buildup, or overheating. A swollen battery can cause pressure on the laptop's chassis, keyboard, track pad, and other components, making them hard to press or click. A swollen battery can also pose a fire hazard and damage the laptop's performance and lifespan. The other options are not as likely or relevant to the issue. Dropping the laptop may cause cracks or other visible damage to the chassis or screen, but the technician did not notice any. The digitizer is the part of the laptop that converts touch input into digital signals, and it has nothing to do with the keyboard or the track pad buttons. An open bottle of rubbing alcohol falling onto the keyboard may cause liquid damage, corrosion, or short circuits, but it would not affect the track pad buttons or the bottom edge of the keyboard. To troubleshoot and resolve the issue, the technician should remove the battery from the laptop and inspect it for signs of swelling, such as bulging, deformation, or leakage. The technician should also check the laptop's chassis, keyboard, and track pad for any signs of damage or warping caused by the battery. The technician should then replace the swollen battery with a new one that is compatible with the laptop's model and specifications. The technician should also dispose of the swollen battery properly and safely, following the local regulations and guidelines. References: CompTIA A+ Certification ore 1 Objectives1 The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2 How to Fix a Swollen Laptop Battery - Lifewire3 How to Tell If Your Laptop Battery Is Swollen - Techwalla4

• Question 633:

  A technician is attempting to log in to a local company portal. When the technician types the URL into the address bar, the browser is unable to resolve and display the web page. The technician tries at another workstation, and the result is the same. Other web pages are not having any issues. Which of the following should the technician check first?

  A. DHCP reservations

  B. Static IP addresses

  C. Default gateway

  D. DNS entries

  Correct Answer: D

  Explanation: The technician is unable to access the company portal website, but other websites work fine. This suggests an issue with resolving the specific URL of the company portal, which is a function of DNS.

  Here's why other options are not the most likely cause:

  DHCP reservations: This is not relevant as the issue persists even when the technician tries a different workstation, indicating a problem beyond individual device configuration. Static IP addresses: Similar to DHCP reservations, static IPs are

  not likely the cause as both affected workstations are experiencing the issue. Default gateway: While the default gateway is necessary for internet access, other websites are working, making it less likely to be the root cause.

  References:

  CompTIA A+ Certification Core 1 220-1101 Study Guide, Chapter 4: Networking, Section 4.2 Addressing and Naming

• Question 634:

  A technician is troubleshooting a thermal receipt printer that will not print. Which of the following should the technician do first to restore functionality?

  A. Update the printer driver on the computer.

  B. Replace the thermal printhead.

  C. Make sure the thermal head is heating up.

  D. Flip the paper roll orientation.

  Correct Answer: D

  A thermal receipt printer uses heat to print on thermal paper, which has a special coating that reacts to heat and produces black marks. If the paper roll is inserted in the wrong orientation, the printer will not be able to print anything on the paper. Therefore, the first thing the technician should do is to check if the paper roll is loaded correctly, with the paper feeding under, not over. This is a common and easy mistake to fix, and it does not require any software or hardware changes.

• Question 635:

  A technician is relocating a router access point farther away from the modem to optimize signal coverage for a SOHO client. Which of the following will the technician most likely use to complete the relocation? (Select two).

  A. Punchdown tool

  B. Crimper

  C. Clamp-style wire stripper

  D. Network tap

  E. Wi-Fi analyzer

  F. Loopback plug

  Correct Answer: BE

  A crimper is a tool that is used to attach connectors to network cables, such as RJ-45 or RJ-11. A technician might need a crimper to create a longer cable for the router access point or to replace a damaged connector. A Wi-Fi analyzer is a software or hardware tool that can scan and measure the wireless signal strength, interference, channel usage, and security of a Wi-Fi network. A technician might need a Wi-Fi analyzer to find the optimal location and configuration for the router access point to improve the signal coverage for the SOHO client.

• Question 636:

  A customer's phone no longer charges fully The phone only charges to 67% and then stops_ Which of the following should be replaced to resolve this issue?

  A. The phone

  B. The charger

  C. The battery

  D. The SD card

  Correct Answer: C

  Explanation: The correct answer is C. The battery. The battery is the component that stores and provides electrical power to the phone. The battery can degrade over time and lose its capacity to hold a full charge. This can cause the phone to stop charging at a certain percentage and run out of power faster. To resolve this issue, the battery should be replaced with a new one that is compatible with the phone model and manufacturer. To replace the battery, the customer may need to follow different steps depending on the type of phone and battery. Some phones have removable batteries that can be easily accessed by opening the back cover of the phone and sliding out the old battery. Other phones have non-removable batteries that are sealed inside the phone and require special tools and skills to open the phone and disconnect the old battery. In this case, the customer may need to contact the phone manufacturer or a professional service center for assistance.

• Question 637:

  An administrator is responding to a network server outage. The administrator has logged in to the server to troubleshoot the outage. Which of the following is the first step the administrator should take when attempting to troubleshoot the issue?

  A. Document the results.

  B. Analyze the error logs.

  C. Check the physical connections.

  D. Upgrade the server firmware.

  Correct Answer: B

• Question 638:

  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?

  A. 10.1.50.30

  B. 19.45.7.28

  C. 169.254.168.10

  D. 172.22.40.6

  Correct Answer: B

  Explanation: This is an example of a public IP address that can be assigned by an ISP to a router's WAN (Wide Area Network) port. A public IP address is a globally unique and routable address that allows a device to communicate with other devices on the internet. A private IP address, such as 10.1.50.30 or 172.22.40.6, is a non-routable address that is used within a local network and cannot be directly accessed from the internet. A link-local IP address, such as 169.254.168.10, is a self-assigned address that is used when a device cannot obtain a valid IP address from a DHCP server. Reference: [CompTIA A+ Core 1 (220-1101) Certification Study Guide], page 27.

• Question 639:

  A user added a heater underneath a desk, and now an external monitor is not working. A technician verified the monitor gets power. Which of the following should the technician do next?

  A. Have the user unplug the heater.

  B. Replace the monitor.

  C. Open the display settings on the computer.

  D. Ensure a VGA cable is connected properly.

  Correct Answer: A

  Explanation: The next step that the technician should do is to have the user unplug the heater. This is because the heater may be causing electromagnetic interference (EMI) or radio frequency interference (RFI) that affects the signal transmission between the computer and the monitor. EMI and RFI are types of noise or distortion that can degrade the quality or integrity of data signals, especially in analog connections such as VGA. EMI and RFI can be generated by various sources, such as power lines, motors, fans, heaters, microwaves, radios, or cell phones. EMI and RFI can cause various symptoms on the monitor, such as flickering, ghosting, blurring, color shifting, or no display at all. To troubleshoot EMI and RFI issues, the technician should follow these steps: Identify the source of the interference. In this case, the heater is the most likely culprit, as it was added recently and is located close to the monitor or the cable. Eliminate or reduce the interference. The technician should have the user unplug the heater or move it away from the monitor or the cable. The technician should also check if there are any other potential sources of interference nearby and remove or relocate them if possible. Test the monitor. The technician should verify if the monitor is working properly after unplugging or moving the heater. If the monitor is still not working, the technician should try other troubleshooting steps, such as checking the display settings on the computer, ensuring the VGA cable is connected properly, or replacing the monitor. References: How to Fix Monitor Flickering - CCM1 How to Fix a Flickering Laptop Screen - Lifewire2 How to Fix a Flickering Monitor - Techwalla3 How to Troubleshoot Display or Video Issues on a Monitor4 How to Troubleshoot a Monitor That Won't Turn On - Lifewire5

• Question 640:

  The output from print jobs a user submitted to a laser printer is missing the color yellow. The user has already attempted a cleaning cycle. Which of the following parts most likely needs to be replaced?

  A. Fuser

  B. Ink cartridge

  C. Imaging drum

  D. Toner tank

  E. Resin

  Correct Answer: C

  Explanation: An imaging drum is a component of a laser printer that transfers the toner to the paper. It is sensitive to light and can wear out over time, resulting in poor print quality or missing colors. If the cleaning cycle does not resolve the issue, the imaging drum may need to be replaced1. A fuser is a component of a laser printer that heats and melts the toner onto the paper. It does not affect the color output of the printer, but it can cause paper jams, smudges, or wrinkles if it is defective2. An ink cartridge is a component of an inkjet printer, not a laser printer. A laser printer uses toner, which is a dry powder, instead of ink, which is a liquid. An ink cartridge would not be compatible with a laser printer3. A toner tank is a container that holds the toner for a laser printer. It can be either integrated with the imaging drum or separate from it. If the toner tank is empty or low, the printer will display a warning message and the print quality will deteriorate. However, if only one color is missing, the problem is more likely with the imaging drum than the toner tank4. Resin is a material that is used in some types of 3D printers, not laser printers. Resin printers use a liquid resin that is cured by a light source to create solid objects. Resin has nothing to do with laser printing5.