CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 151:

  Which of the following translates a hostname to IP addresses?

  A. AAA
  B. DHCP
  C. DNS
  D. UTM
  C. DNS

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  Explanation

  DNS stands for Domain Name System, which is a network service that translates hostnames to IP addresses. Hostnames are human-readable names that identify devices or services on the Internet, such as www.google.com or mail.yahoo.com. IP addresses are numerical identifiers that specify the location of devices or services on the Internet, such as 172.217.14.206 or 98.137.11.163. DNS allows users to access websites or services by using hostnames instead of IP addresses, which are easier to remember and type. DNS also allows hostnames to change their IP addresses without affecting the users, which can improve performance and security.

  References: The following web search results provide more information about DNS and how it translates hostnames to IP addresses: What is DNS? | How DNS Works | Cloudflare: This article explains the concept of DNS, its components, its functions, and its benefits. Hostname vs. IP - address - Stack Overflow: This answer compares the differences between hostnames and IP addresses, and how DNS resolves them. How DNS Works: Domain Name System(DNS): This article illustrates how DNS works with diagrams and examples.

• Question 152:

  The IT department issued a corporate smartphone to a user, but the user returned the device stating it had connectivity Issues. The user claimed the device functioned on WI-FI but all connectivity to cloud services was lost as soon as the device was taken off site. Which of the following issues was MOST likely affecting the device?

  A. MDM was never properly set up on the device.
  B. S/MIME certificates were corrupted and needed to be reloaded.
  C. Bluetooth on the device was disabled by mistake.
  D. The device never had a proper SIM card installed.
  D. The device never had a proper SIM card installed.

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  Explanation

  A SIM card is needed for the device to use cellular network services, so without it, the device will be unable to connect to the cloud services when taken off site. MDM (Mobile Device Management) can be used to manage settings and access on a device, but it is not necessary for the device to be able to use cloud services. S/MIME (Secure/Multipurpose Internet Mail Extensions) certificates are used to encrypt and digitally sign emails, and are not related to device connectivity. Bluetooth can be used to connect devices together, but it is not necessary for the device to be able to use cloud services.

• Question 153:

  An end user reports a printer error that states "Replace filament". With which of the following types of printer is the end user MOST likely having problems?

  A. ink jet
  B. Laser
  C. 3-D
  D. Thermal
  C. 3-D

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  Explanation

• Question 154:

  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.
  A. The mobile data service is disabled.

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  Explanation

  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 155:

  A technician is troubleshooting network connectivity issues after a new wireless router was installed in an office. Users who connect to the new router are unable to access LAN resources. Which of the following is the MOST likely cause of the issue?

  A. There are conflicting DHCP servers on the network
  B. There are conflicting ARP records
  C. There are conflicting gateways on the network
  D. There are conflicting IP protocols
  A. There are conflicting DHCP servers on the network

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  Explanation

• Question 156:

  An end user discovered that the touch-screen features on a Windows device have stopped working. Which of the following should a technician check?

  A. Performance monitor
  B. Tablet/PC settings
  C. System configuration
  D. Display settings
  B. Tablet/PC settings

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  Explanation

  If the touch-screen features on a Windows device have stopped working, a technician should check the Tablet/PC settings. The Tablet/PC settings contain options for configuring the touch-screen features on a Windows device. By checking

  the Tablet/PC settings, the technician can ensure that the touch-screen features are enabled and configured correctly.

  If the touch-screen features on a Windows device have stopped working, a technician should check the Tablet/PC settings. The touch-screen settings may have been disabled or there may be a driver issue that needs to be resolved.

  References: CompTIA A+ Certification Exam Guide, pg. 536

• Question 157:

  A user submits a help desk ticket regarding a smartphone that will no longer accept its charging cable. The assigned technician notices the phone does not have a protective case, and the user constantly transport the phone in a pocket. The technician attempts to use a secondary charger, but the cable falls out of the phone. Which of the following is the MOST likely cause of the issue?

  A. The phone requires a firmware update to address charging issues.
  B. The charge port contains foreign objects, such as lint.
  C. The phone's battery has swelled, preventing the utilization of the charge port.
  D. The phone has experienced water damage, thus the battery is not charring.
  B. The charge port contains foreign objects, such as lint.

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  Explanation

  The symptoms suggest that the charging cable falls out of the phone, indicating that the charge port may contain foreign objects such as lint, which can interfere with the connection between the charging cable and the phone.

• Question 158:

  A user reports having an issue charging a laptop from home. When the user connects the USB-C adapter that is attached to the office workstation to the laptop charging port, the laptop charges correctly. When the user connects the home USB-C adapter to the laptop charging port, the laptop does not charge. Which of the following should the technician do to ensure the user can work at home and in the office?

  A. Provide a UPS for the user's home office.
  B. Give the user an OEM power supply for home use.
  C. Replace the user's laptop with a desktop, and enable remote log-in.
  D. Instruct the user to use a USB-C hub when working at home.
  B. Give the user an OEM power supply for home use.

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  Explanation

• Question 159:

  A technician is replacing a failed power supply in a ten-year-old computer. When installing the customer-provided power supply, the technician discovers the ATX connector would not plug into the motherboard. The customer wants a cost-effective solution.

  Which of the following should the technician do next?

  A. Adjust the input voltage.
  B. Install a modular power supply.
  C. Rebuild the failed power supply.
  D. Use a 20-pin to 24-pin adapter.
  D. Use a 20-pin to 24-pin adapter.

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  Explanation

  Older motherboards use 20-pin connectors, while newer power supplies use 24-pin connectors. An adapter resolves the compatibility issue cost-effectively.

  Why Not A (Adjust the input voltage): Input voltage adjustment is unrelated to connector compatibility.

  Why Not B (Install a modular power supply): While modular supplies are versatile, this doesn't address the connector issue directly.

  Why Not C (Rebuild the failed power supply): Rebuilding is costly and complex compared to using an adapter.

  Core 1 (220-1101), Section 3.4, power supply compatibility.

• Question 160:

  Which of the following could a user employ to maximize module bandwidth when selecting memory for a high-end gaming computer?

  A. Error correction
  B. RAM voltage
  C. Channel configuration
  D. Physical module size
  C. Channel configuration

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  Explanation