CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 241:

  A customer accidentally drops a laptop while it is charging. The next day, the customer notices the laptop will not turn on and calls a technician to investigate. The technician confirms the laptop will not turn on and calls a technician to investigate. The technician confirms the laptop will not turn on even though it is connected to the power adapter.

  Which of the following components is the MOST likely cause of this behavior?

  A. Power adapter
  B. Battery
  C. DC jack
  D. Hard drive
  C. DC jack

  ---

  Explanation

• Question 242:

  Which of the following is considered a connectionless protocol?

  A. SSH
  B. TCP
  C. HTTPS
  D. UDP
  D. UDP

  ---

  Explanation

  The correct answer is

  D. UDP. UDP (User Datagram Protocol) is a connectionless protocol that does not establish a connection before sending or receiving data. UDP simply sends datagrams to the destination without checking if the receiver is ready or not. UDP does not guarantee reliable delivery, error correction, or in-order arrival of the data. UDP is faster and more efficient than connection-oriented protocols for applications that do not require reliability, such as streaming audio or video1 A. SSH (Secure Shell) is not a correct answer. SSH is a connection-oriented protocol that uses TCP (Transmission Control Protocol) as its transport layer. SSH establishes a secure and encrypted connection between two network endpoints before exchanging data. SSH provides authentication, confidentiality, and integrity for remote login and command execution2

  B. TCP (Transmission Control Protocol) is not a correct answer. TCP is a connection- oriented protocol that establishes a connection before sending or receiving data. TCP ensures reliable delivery, error correction, and in-order arrival of the data. TCP is slower and more complex than connectionless protocols, but it provides more reliability and quality of service for applications that require it, such as web browsing or email1

  C. HTTPS (Hypertext Transfer Protocol Secure) is not a correct answer. HTTPS is a connection-oriented protocol that uses TCP as its transport layer and SSL/TLS as its security layer. HTTPS establishes a secure and encrypted connection between a web browser and a web server before exchanging data. HTTPS provides authentication, confidentiality, and integrity for web transactions, such as online banking or shopping1

• Question 243:

  A company's IT department frequently needs to work on several machines at once. The department wants to increase productivity by allowing a single mouse, keyboard, and monitor to instantly shift between one of eight computers on a workbench. Which of the following would BEST facilitate this approach?

  A. KVM switch
  B. Docking station
  C. USB and HDMI extension cables
  D. Bluetooth-enabled peripherals
  A. KVM switch

  ---

  Explanation

  https://en.wikipedia.org/wiki/KVM_switch

• Question 244:

  A technician is setting up a new wireless network at a branch office that previously had only wired connectivity with statically assigned IP addresses. After setting up the network, the technician configures a server to provide IP addresses to wireless clients. During testing, the technician is unable to access the Internet or named network resources. The technician receives a valid IP address from the DHCP server and can ping the default gateway. Which of the following should be technician check NEXT to resolve this issue?

  A. Ensure the options are configured to provide a DNS server.
  B. Verify the Windows Firewall is turned off.
  C. Configure the wireless network's SSID to be hidden.
  D. Enable file and printer sharing in the OS.
  A. Ensure the options are configured to provide a DNS server.

  ---

  Explanation

• Question 245:

  SIMULATION

  A third-party contractor recently installed a new switch, router, and cabling for a small corporate office. After the installation, users started experiencing issues connecting to resources over the network.

  INSTRUCTIONS:

  Click on each PC and server to review outputs. From the remediation section on the right, select an issue and solution for each device.

  

  

  

  

  

  A. Check the answer in explanation.
  B. PlaceHolder.
  C. PlaceHolder.
  D. PlaceHolder.
  A. Check the answer in explanation.

  ---

  Explanation

  Looking at the network configurations and outputs from both PCs and servers, here are the possible issues and solutions:

  PC 1 Issue: The IP address for PC1 is 192.168.1.1, which conflicts with Server 1 (which also uses 192.168.1.1). Solution: Change the IP address on PC1 to a unique one within the range, such as 192.168.1.3.

  PC 2 Issue: PC2 is configured with 192.168.1.2, which conflicts with Server 2, which has the same IP address. Solution: Update the IP address on PC2 to something unique, such as 192.168.1.4.

  Server 1 Issue: The IP address for Server 1 is 192.168.1.1, which conflicts with PC1. Solution: Since Server 1 and PC1 are using the same IP address, change one of them. For Server 1, you could change the IP address to 192.168.1.5.

  Server 2 Issue: Server 2 is using the IP address 192.168.1.2, which conflicts with PC2. Solution: Update Server 2 to use a different IP address, such as 192.168.1.6.

  General Remediation: The primary problem here is overlapping IP addresses, which lead to connectivity issues. Each device on the network must have a unique IP address. After making these changes, ensure that all devices can communicate properly by testing the connections and verifying access to shared resources.

• Question 246:

  While troubleshooting a user's smartphone issue, a technician notices that the display is visible but extremely hard to see.

  Which of the following is the most likely issue?

  A. Inverter
  B. LCD glass
  C. IPS panel
  D. Digitizer
  A. Inverter

  ---

  Explanation

  An inverter failure commonly causes dim screens as it fails to power the backlight, which is crucial for visibility. The LCD glass, IPS panel, and digitizer relate to touch and image display, not brightness. According to CompTIA A+ Core 1 objectives, understanding mobile device display issues, including inverter-related problems, is essential for effective troubleshooting.

• Question 247:

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

  A. To test new software in a safe environment
  B. To increase the efficient use of computing resources
  C. To run multiple machines on the same hardware
  D. To have dedicated hardware for a single system
  A. To test new software in a safe environment

  ---

  Explanation

  The main reason to use a virtual machine as a sandbox is to test new software in a safe environment without risking the integrity of the host operating system. Using a virtual machine enables the testing of software and allows for the isolation of the software from the host system.

  References: CompTIA A+ Certification Study Guide, Tenth Edition, pg. 409

• Question 248:

  A company recently enabled two-factor authentication in order to enhance security. Users should be prompted for two-factor authentication when working outside of the office, but are also being prompted when connecting to the office Wi-Fi. Which of the following should the technician do?

  A. Leave the current rules in place and disable Wi-Fi on all devices.
  B. Implement allow listing and add the office IP address as an exception.
  C. Remove two-factor authentication from the users' accounts.
  D. Substitute hard tokens in place of soft tokens.
  B. Implement allow listing and add the office IP address as an exception.

  ---

  Explanation

  Allow listing is a security technique that allows only specific IP addresses or domains to access a network or a service. By adding the office IP address as an exception, the company can prevent two-factor authentication from being triggered

  when users are connected to the office Wi-Fi, since the office network is considered trusted. This way, users will only be prompted for two-factor authentication when working outside of the office, which enhances security.

  References: The following web search results provide more information about allow listing and two-factor authentication:

  What Is Two-Factor Authentication (2FA)? | Microsoft Security: This article explains the concept of two-factor authentication, its benefits, and its methods. Change your two-step verification method and settings - Microsoft Support: This article

  shows how to manage your security verification methods and settings for your work or school account, including how to turn on two-factor verification prompts on a trusted device. 2FA Directory: This website lists all the sites that support two-

  factor authentication, and the methods they use.

• Question 249:

  A user purchases a wireless printer and sets it up in an office. The user installs all necessary software for the printer on the computer and connects the printer to the guest wireless network. However, when the user attempts to print to the printer, nothing happens.

  Which of the following will resolve the issue?

  A. Set up the user's computer to act as a print server.
  B. Configure the printer to use the Internet printing protocol.
  C. Ensure the user's computer is set to DHCP.
  D. Connect the printer to the company wireless network.
  D. Connect the printer to the company wireless network.

  ---

  Explanation

• Question 250:

  A user keeps a company-provided camera's battery charger plugged into a docking station at a desk. Company policy requires that USB devices be identified and approved by installed peripheral security software. A technician is unable to add a unique identifier to the battery charger's security software. Which of the following should the technician do?

  A. Provide a USB to AC adapter for the battery charger.
  B. Add a powered USB hub to the docking station.
  C. Disable the peripheral security software for this user only.
  D. Replace the battery charger with a USB device that has a unique identifier.
  A. Provide a USB to AC adapter for the battery charger.

  ---

  Explanation

  The problem in this scenario is that the battery charger is not a USB device, but a device that plugs into a USB port to draw power. Therefore, it does not have a unique identifier that can be recognized by the peripheral security software, which is designed to prevent unauthorized USB devices from accessing the company's network or data. The security software cannot add the battery charger to its whitelist, and may block its power supply or generate alerts. The best solution for this problem is to provide a USB to AC adapter for the battery charger, which is a device that converts the USB power output to an AC power input that can be plugged into a wall outlet. This way, the battery charger does not need to connect to the docking station or the computer, and does not trigger the peripheral security software. The user can still charge the camera's battery without compromising the company's security policy. The other options are not advisable because they either do not solve the problem or create new risks. Option B, adding a powered USB hub to the docking station, may not work if the security software also monitors the hub's ports and detects the battery charger as an unknown device. Option C, disabling the peripheral security software for this user only, is a very bad idea because it exposes the user's computer and the company's network to potential attacks from malicious USB devices. Option D, replacing the battery charger with a USB device that has a unique identifier, is unnecessary and costly, and may not be compatible with the camera's battery.

  References: CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 9: Security, Section 9.3: Device Security, Page 419 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Pearson uCertify Course and Labs and Textbook Bundle, Chapter 9: Security, Section 9.3: Device Security, Page 420 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Exam Cram, Chapter 9: Security, Section 9.3: Device Security, Page 402