CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 201:

  A technician needs to update a web server's IPv4 address in a DNS server.

  Which of the following records should the technician update?

  A. AAAA
  B. MX
  C. CNAME
  D. A
  D. A

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  Explanation

  Step by Step Detailed Comprehensive

  Explanation with All CompTIA

  References:

  Analysis of the Problem:

  Option Evaluation:

  Domain 2.6 emphasizes understanding DNS record types.

• Question 202:

  Using the output below:

  

  Which of the following is the default gateway?

  A. 172.25.1.252
  B. 172.25.1.39
  C. 172.25.1.4
  D. 255.255.255.0
  A. 172.25.1.252

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  Explanation

  The default gateway is the IP address of the router or device that connects a network to another network or the internet. In the output below, the default gateway is 172.25.1.252, as shown in the line "Default Gateway . . . . . . . . . : 172.25.1.252". The other IP addresses are not default gateways, but either local IP addresses (172.25.1.39 and 172.25.1.4) or subnet masks (255.255.255.0).

• Question 203:

  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.
  D. Ensure a VGA cable is connected properly.

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  Explanation

• Question 204:

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

  A. Switches only send data to the specific computer, while hubs send data to all computers inside the network.
  B. Switches compress data while hubs send uncompressed data
  C. Switches receive data and route it to all computers inside the network while hubs receive data and do not route
  D. Switches scramble data, while hubs send data in the original form.
  A. Switches only send data to the specific computer, while hubs send data to all computers inside the network.

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  Explanation

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

  References: CompTIA A+ Certification Exam Guide, Exam 220-1001, Page 323

• Question 205:

  A technician is troubleshooting a laptop/projector combination that is displaying artifacts on the screen. When a different laptop is connected to the projector, the image appears to be correct but is very dim.

  Which of the following steps should the technician take to address these issues? (Choose two.)

  A. Update the video drivers on the laptop.
  B. Increase the projector contrast.
  C. Replace the original laptop.
  D. Change the aspect ratio on the projector.
  E. Replace the bulb in the projector.
  F. Modify the laptop's display resolution.
  A. Update the video drivers on the laptop.
  B. Increase the projector contrast.

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  Explanation

• Question 206:

  A user's phone overheated earlier in the day, causing the battery to expand in the case. Which of the following should the technician advise the user to do first?

  A. Replace the phone's SIM card
  B. Check the phone's health status
  C. Turn off the phone
  D. Disable VPN on the phone
  C. Turn off the phone

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  Explanation

  When a phone's battery overheats and expands, it poses a significant safety risk, including the potential for fire or explosion. The first and most critical action is to turn off the device to prevent further chemical reactions within the battery that could worsen the situation. Turning off the phone halts its operations, reduces heat generation, and minimizes the risk of further damage or danger. This precautionary step ensures the user's safety and prevents additional harm to the device. The user should avoid charging or using the phone in this condition and seek professional assistance for battery replacement or repair.

  References: Mobile Devices 1101.docx, Safety and Environmental Concerns section.

• Question 207:

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

  A. Using the device as a Wi-Fi hotspot
  B. A cracked screen
  C. A failing battery
  D. Less than 15% free storage space on the phone
  E. Privileged control
  F. Recurring prompts to install OS updates
  G. Granting too many application camera permissions
  H. Too many open applications
  A. Using the device as a Wi-Fi hotspot
  C. A failing battery
  H. Too many open applications

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  Explanation

  Using the device as a Wi-Fi hotspot, a failing battery, and too many open applications are the most likely causes of the cell phone getting hot. These actions require the phone to use more power and processing, causing it to heat up.

• Question 208:

  An administrator notices that on an intermittent basis the virtual machines are running slowly. The virtual machines are correctly sized, and the hardware has enough free resources to cope with demand.

  Which of the following is most likely the cause?

  A. The physical servers are not able to draw enough power
  B. The physical servers do not have enough network bandwidth.
  C. The physical servers are throttling due to overheating
  D. The physical servers are contending for resources
  C. The physical servers are throttling due to overheating

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  Explanation

  The physical servers are throttling due to overheating. This means that the servers are reducing their performance to prevent damage from excessive heat. This can cause the virtual machines to run slowly, as they depend on the physical servers' resources. To avoid this, the servers need adequate cooling and ventilation, as well as monitoring of their temperature and fan speed. According to the CompTIA Core1 objectives, one of the environmental factors that can affect system performance is overheating. A research paper on thermal management of servers also states that overheating can lead to performance degradation, reliability issues, and energy inefficiency.

• Question 209:

  A technician installed a new router at a small office. After the Installation, the technician notices that all devices have a I69.254.x.x IP address. Printers and fileshares are still working, but PCs cannot access the Internet. Which of the following should the technician configure on the router to enable devices to connect to the internet?

  A. APIPA
  B. DNS
  C. DHCP
  D. SMB
  C. DHCP

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  Explanation

  To enable devices to connect to the internet after installing a new router at a small office, the technician should configure DHCP (Dynamic Host Configuration Protocol) on the router. DHCP is a network protocol that automatically assigns IP addresses and other network configuration parameters to devices on a network. By configuring DHCP on the router, the technician can ensure that all devices on the network are assigned a valid IP address that allows them to connect to the internet. If all devices have a 169.254.x.x IP address, this suggests that the router is not assigning IP addresses to the devices using DHCP (Dynamic Host Configuration Protocol). Configuring the DHCP settings on the router can enable the devices to receive IP addresses automatically and access the internet.

  References: CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition, Chapter 14

• Question 210:

  Which of the following controls the flow of users connecting to web server farms and prevents overutilization on any individual server?

  A. Firewall
  B. Honeypot
  C. Load balancer
  D. Spam gateway
  C. Load balancer

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  Explanation

  A load balancer is a device or software that distributes network traffic across multiple servers or resources, such as web server farms, to optimize performance, reliability, and scalability. A load balancer controls the flow of users connecting to web server farms and prevents overutilization on any individual server by using various algorithms, such as round robin, least connections, or weighted distribution. A load balancer can also provide health checks, failover, caching, compression, encryption, and other features to enhance the user experience and security.