CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 11:

  In which of the following places is a laptop's wireless antenna MOST likely located?

  A. Near the network interface card
  B. Underneath the battery
  C. Integrated into the motherboard
  D. In the bezel of the lid
  D. In the bezel of the lid

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  Explanation

  According to Dell Community, the Wi-Fi antenna is located in the top of the LCD display housing. It consists of two elements, fed by two cables, a white main designated on the Wi-Fi card by a white triangle, and a black auxiliary designated on the Wi-Fi card by a black triangle1.

• Question 12:

  A user reports being unable to access the network. A help desk technician notices an APIPA on the user's workstation. Which of the following services should the technician investigate first?

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

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  Explanation

  DHCP (Dynamic Host Configuration Protocol) is a network service that automatically assigns IP addresses and other configuration parameters to devices that request them. DHCP simplifies the management of IP addresses and avoids conflicts and errors67. An APIPA (Automatic Private IP Addressing) is a feature of Windows that assigns a default IP address in the range of 169.254.x.x to a device when it cannot obtain a valid IP address from a DHCP server. An APIPA indicates that there is a problem with the DHCP service or the network connectivity between the device and the DHCP server89. Therefore, the technician should investigate the DHCP service first to check if it is running, configured correctly, and has enough available IP addresses to assign. The other services are not directly related to the IP address assignment. RADIUS (Remote Authentication Dial-In User Service) is a protocol that provides centralized authentication, authorization, and accounting for network access10. AAA (Authentication, Authorization, and Accounting) is a framework that controls the access and usage of network resources11. DNS (Domain Name System) is a service that resolves domain names into IP addresses12. References

  6: What is DHCP (Dynamic Host Configuration Protocol)? - Definition from WhatIs.com

  7: How DHCP works - Windows Server | Microsoft Docs

  8: What is APIPA (Automatic Private IP Addressing)? - Definition from WhatIs.com

  9: How to Fix an IP Address Conflict

  10: What is RADIUS (Remote Authentication Dial-In User Service)? - Definition from WhatIs.com

  11: What is AAA (authentication, authorization, and accounting)? - Definition from WhatIs.com

  12: What is DNS (Domain Name System)? - Definition from WhatIs.com

• Question 13:

  An organization keeps receiving spam that appears to come from its own domain No accounts have been compromised. Which of the following will BEST mitigate this issue?

  A. DNS
  B. S/MIME
  C. SPF
  D. SSiD
  C. SPF

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  Explanation

  The BEST solution to mitigate spam that appears to come from an organization's own domain is to implement SPF (Sender Policy Framework). SPF is an email validation protocol designed to detect and prevent email spoofing, which is a common tactic used by spammers. By publishing SPF records in the organization's DNS (Domain Name System), the recipient's mail server can check if an incoming email originated from a valid source. If the email fails SPF authentication, it can be blocked or flagged as spam. Therefore, SPF helps to prevent email spoofing and mitigate the risk of spam coming from an organization's own domain

• Question 14:

  A user entered a help desk ticket stating the latest calendar updates have not appeared on the user's corporate mobile device for several days, even though updates do appear on the user's laptop. Which of the following actions will MOST likely enable calendar alerts?

  A. Checking that the ringer volume on the device is high enough to be audible
  B. Ensuring the corporate password is saved correctly in the calendar application
  C. Installing a third-party calendar application and synchronizing it with the corporate calendar
  D. Remotely wiping the mobile device and reinstalling all applications
  B. Ensuring the corporate password is saved correctly in the calendar application

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  Explanation

• Question 15:

  A user reports that a laptop correctly connects to the internet when docked at the office but is unable to access the internet when at home. Which of the following should the technician do first?

  A. Contact the user's home ISP
  B. Give the user a dock to use at home.
  C. Disable network security settings.
  D. Enable the wireless adapter.
  D. Enable the wireless adapter.

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  Explanation

  A wireless adapter is a device that allows a laptop to connect to a wireless network, such as a home Wi-Fi router. A wireless adapter can be either internal or external, and it can be enabled or disabled by the user or the operating system. If the wireless adapter is disabled, the laptop will not be able to access the internet when it is not connected to a wired network, such as the office dock. The technician should do the following steps to enable the wireless adapter:

  Check the physical switch or button on the laptop that controls the wireless adapter. Some laptops have a switch or button on the side, front, or keyboard that can turn on or off the wireless adapter. Make sure the switch or button is in the on position.

  Check the software settings for the wireless adapter. In Windows 10, you can do this by clicking on the network icon in the system tray, and then clicking on the Wi- Fi icon. Make sure the Wi-Fi is turned on. You can also go to Settings >

  Network and Internet > Wi-Fi and make sure the Wi-Fi is turned on. Check the device manager for the wireless adapter. In Windows 10, you can do this by right-clicking on the Start menu and selecting Device Manager. Expand the Network adapters category and look for your wireless adapter. Make sure it is enabled and has no errors. You can right-click on it and select Enable device or Update driver if needed. If none of these steps work, there may be a hardware or software problem with the wireless adapter that requires further troubleshooting or replacement.

• Question 16:

  Which of the following BEST describes the main function of a web server?

  A. Storing files and controlling user access
  B. Setting up personal mailboxes and calendars
  C. Providing IP addresses and printing services
  D. Hosting home pages and business portals
  D. Hosting home pages and business portals

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  Explanation

  A web server is a software application that serves HTTP (Hypertext Transfer Protocol) requests by delivering web pages and other files to users' web browsers. The main function of a web server is to host home pages and business portals, making them accessible to users via the internet.

  References: CompTIA A+ Certification Exam Objectives 220-1001 - Networking - 1.6

• Question 17:

  Which of the following devices is used to implement ACL polices for an environment?

  A. Managed switch
  B. Gateway
  C. Repeater
  D. Firewall
  D. Firewall

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  Explanation

  A firewall implements ACLs (Access Control Lists) to filter traffic and enforce policies based on rules such as IP address, port, or protocol.

  Why Not A (Managed switch): A managed switch supports VLANs and QoS but does not enforce ACLs at the network perimeter.

  Why Not B (Gateway): Gateways connect networks and translate protocols but don't typically implement ACLs.

  Why Not C (Repeater): Repeaters extend signal range but don't enforce policies.

  Core 1 (220-1101), Section 2.2, firewall concepts.

• Question 18:

  HOTSPOT

  A customer built a computer for gaming, sourcing individual components and then assembling the system.

  The OS starts up, but within a few minutes the machine locks up.

  The customer brought the computer to a technician to diagnose the issue.

  

  

  

  

• Question 19:

  A company's RAID array has degraded performance and a blinking red light on one of the bays.

  Which of the following should a technician replace?

  A. HDD
  B. CPU
  C. PSU
  D. RAM
  A. HDD

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  Explanation

• Question 20:

  A technician plans to upgrade a laptop's RAM from 4GB to 16GB. Which of the following should the technician do?

  A. Purchase the same architecture of RAM.
  B. Configure the laptop's BIOS settings for the RAM upgrade.
  C. Purchase RAM with the same CAS latency.
  D. Purchase the same brand of RAM.
  A. Purchase the same architecture of RAM.

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  Explanation

  The most important factor to consider when upgrading a laptop's RAM is the architecture of the RAM, which determines the type, speed, and capacity of the memory modules. The architecture of the RAM must match the architecture of the laptop's motherboard and processor, otherwise the RAM will not be compatible or function properly. The architecture of the RAM includes the DDR generation (such as DDR3 or DDR4), the form factor (such as SO-DIMM), the pin count (such as 204 or 260), the voltage (such as 1.35V or 1.5V), and the frequency (such as 1600MHz or 2400MHz). The other options are not as crucial or relevant for the RAM upgrade. The brand of the RAM does not matter as long as the RAM meets the specifications of the laptop and is of good quality. The CAS latency of the RAM is a measure of the delay between the memory controller requesting data and the RAM delivering it, and it affects the performance of the RAM. However, the CAS latency is not a fixed value and can vary depending on the frequency and voltage of the RAM. Therefore, purchasing RAM with the same CAS latency is not necessary or sufficient for compatibility. The laptop's BIOS settings are usually configured to automatically detect and adjust to the RAM upgrade, and do not need to be manually changed by the technician.

  References: CompTIA A+ Certification Exam Core 1 Objectives1 The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2 How to Upgrade the RAM in Your Laptop | Tom's Hardware3 How to Upgrade RAM on a Laptop | Crucial.com4