CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 461:

  A user is unable to browse any web pages. However, the user can ping the IP address 8.8.4.4. Which of the following is most likely causing the issue?

  A. The user does not have permission to viewthe website.
  B. The website is offline and not responding.
  C. The DNS settings are not configured on theuser's device.
  D. The DHCP server is not reachable from theuser's device.
  C. The DNS settings are not configured on theuser's device.

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  Explanation

  Since the user can ping 8.8.4.4 (an external IP address) but is unable to browse web pages, it indicates that the DNS (Domain Name System) settings may be incorrect or not configured. The DNS system is crucial for translating human-friendly domain names into IP addresses. If DNS settings are incorrect, the browser cannot resolve domain names, thus web pages will not load despite the network itself being reachable via IP. The other options are less likely as they would affect connectivity to external IP addresses or the availability of specific websites.

  References:

  CompTIA A+ Core 1 (220-1101) exam objectives in the networking section, specifically relating to DNS and IP configurations.

• Question 462:

  An IT technician is working on a help desk ticket concerning a user's inability to create a virtual machine. The technician has already checked the RAM and HDD space in the user's machine. Which of the following settings should the technician check NEXT to help troubleshoot the issue?

  A. BitLocker
  B. MSConfig
  C. BIOS
  D. Secure Boot
  C. BIOS

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  Explanation

  One of the possible settings that could prevent a user from creating a virtual machine is BIOS (Basic Input/Output System). BIOS is a firmware that controls how hardware components interact with each other and with software applications. Some BIOS settings may need to be changed or enabled to allow virtualization, such as VT-x (Intel Virtualization Technology) or AMD-V (AMD Virtualization). The other options are not related to virtualization settings. Verified

  References: [How To Enable Virtualization In BIOS Settings].

• Question 463:

  A systems administrator hears a clicking noise coming from a storage array that has a RAID configuration_ No LEOS are illuminated on the array but the logs show several hard drive errors. Which of the following should the systems administrator do to quickly eliminate the clicking?

  A. Reinstall the drive.
  B. Replace the bad drive.
  C. Reset the RAID software
  D. Run a chkdek on the drive.
  B. Replace the bad drive.

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  Explanation

  The correct answer is

  B. Replace the bad drive.

  A clicking noise coming from a hard drive is a sign of a mechanical failure, which can cause data loss or corruption. Replacing the bad drive as soon as possible is the best way to prevent further damage and restore the RAID array to a

  healthy state. Reinstalling the drive, resetting the RAID software, or running a chkdek on the drive will not fix the underlying hardware problem and may even worsen the situation. Therefore, option B is the correct answer.

  References:

  CompTIA A+ Core 1 (220-1101) Certification Study Guide, page 131: "Clicking noises indicate that the hard drive is failing mechanically." RAID configuration on Linux - Amazon Elastic Compute Cloud, section "Replace a failed volume in a RAID 0 array": "If one of the volumes in your RAID 0 array fails, you must replace it as soon as possible to avoid data loss."

• Question 464:

  A user would like a removable storage device that is secure. portable, and does not contain moving parts. Which of the following devices would be the most suitable?

  A. HDD
  B. NAS
  C. SSD
  D. SAN
  C. SSD

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  Explanation

  An SSD (solid state drive) is a removable storage device that uses flash memory to store data. It is secure, portable, and does not contain moving parts, which makes it more reliable and durable than other types of storage devices. An HDD (hard disk drive) is not suitable, as it contains spinning platters and read/write heads that are prone to damage and data loss. A NAS (network attached storage) and a SAN (storage area network) are not removable devices, as they are connected to a network and provide shared storage for multiple users.

  [CompTIA A+ Core 1 (220-1101) Certification Study Guide], page 23.

• Question 465:

  Which of the following allows for a beam of light to transmit data through a flexible cable?

  A. Coaxial
  B. HDMI
  C. Thunderbolt
  D. Single-mode fiber
  D. Single-mode fiber

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  Explanation

  Single-mode fiber uses a beam of light to transmit data over long distances through a very thin, flexible cable. It is commonly used for high-speed data transmission across wide areas, such as between buildings or over long distances within a

  network. Single-mode fiber offers a higher bandwidth and longer distance capabilities compared to other types of fiber optics.

  Single-mode fiber: Transmits data using light through a fiber optic cable, making it ideal for long-distance communication.

  Why the other options are incorrect:

  Coaxial: Coaxial cables use electrical signals, not light, to transmit data.

  HDMI: HDMI (High-Definition Multimedia Interface) is used for transmitting audio and video signals but does not use light for data transmission. Thunderbolt: Thunderbolt cables transmit data using electrical signals and are typically used for

  high-speed data transfer and display connections.

  This falls under the Networking and Hardware domain in the CompTIA A+ Core 1 exam.

• Question 466:

  A user reports intermittent connectivity. The technician checks the network logs and sees the following output:

  Interface 0/1 Status Up

  Interface 0/1 Status Down

  Interface 0/1 Status Up 13:03:20

  Interface 0/1 Status Down 13:04:10

  Switch elected as Root bridge

  Interface 0/1 Status Up 13:05:40

  Which of the following is the most likely reason for this issue?

  A. External interference
  B. High latency
  C. Jitter
  D. Port flapping
  D. Port flapping

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  Explanation

  Port flapping, also known as link flapping, is a situation in which a physical interface on the switch continually goes up and down, causing intermittent connectivity for the devices connected to that port. Port flapping can be caused by various factors, such as faulty or incompatible cables, hardware issues, configuration errors, or other network problems. The network logs show that interface 0/1 on the switch changes its status from up to down and vice versa several times within a short period of time. This indicates that the port is flapping and affecting the network connectivity. The log also shows that the switch was elected as the root bridge, which means that it is the central point of a spanning tree protocol (STP) network. STP is a protocol that prevents loops in a network by blocking some ports and creating a tree-like topology. Port flapping can cause STP to recalculate the topology and change the status of the ports, which can further disrupt the network performance2. To troubleshoot port flapping, the technician should check the physical and hardware aspects of the device, such as cables, SFPs, gigabit interface converters, and power supplies. The technician should also check the configuration settings of the port, such as auto-negotiation, duplex mode, speed, power-saving features, and smartport. The technician should also check for other network issues that may cause port flapping, such as link synchronization and spanning tree issues.

• Question 467:

  Which of the following is a legacy 15-pin cable type?

  A. DisplayPort
  B. DVI
  C. VGA
  D. HDMI
  C. VGA

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  Explanation

  VGA is a legacy 15-pin analog video cable commonly used with older monitors.

• Question 468:

  A user reports that a display is slow to turn on, and the colors are distorted and discolored. Once the display turns on, it appears to have lines going through the image and intermittently goes blank. Which of the following is the most likely cause of the issue?

  A. Incorrect data source
  B. Incorrect resolution settings
  C. Physical cabling issues
  D. Incorrect refresh rate
  E. Display burn-in
  C. Physical cabling issues

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  Explanation

  Physical cabling issues refer to any problems with the cables or connectors that connect a display to a computer or a power source. Physical cabling issues can cause various symptoms, such as slow to turn on, distorted and discolored images, lines going through the image, and intermittent blank screens. The technician should check the cables and connectors for any damage, looseness, or interference.

• Question 469:

  Which of the following allows several websites from different companies to be housed on the same virtual server?

  A. Rapid elasticity
  B. High availability
  C. Shared resources
  D. Metered utilization
  C. Shared resources

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  Explanation

  Shared resources is the concept that allows several websites from different companies to be housed on the same virtual server. A virtual server is a software-based server that runs on a physical server and can host multiple virtual machines (VMs). Each VM can run a different operating system and application, such as a website, and have its own allocated resources, such as CPU, memory, disk space, and network bandwidth. However, the VMs share the underlying hardware resources of the physical server, which reduces the cost and complexity of maintaining separate servers for each website. This also enables rapid scalability, as new VMs can be created or deleted as needed. One of the methods to host multiple websites on the same virtual server is to use virtual hosts. Virtual hosts are a feature of web servers, such as Apache, that allow the web server to serve different websites based on the domain name or IP address requested by the client. For example, a web server can host two websites, a.example.com and b.example.com, on the same virtual server and the same port (such as 80 or 443), by using virtual hosts to map each domain name to a different document root directory. The web server will then deliver the content of the corresponding website to the client based on the domain name in the HTTP request header.

  References: How to Host Multiple Websites With One Apache Server1 How to run multiple sites on one apache instance2 Multiple different website hosting on same port 443 and same server or ...3 When several name-based virtual hosts on the same web server share the ...4 How to Host Multiple Sites on One Server - Server Mania5

• Question 470:

  An IT technician is troubleshooting an issue with connecting a new laptop to a company's wireless network. Which of the following diagnostic steps should the technician take first?

  A. Review the network settings in the OS.
  B. Install the latest firmware updates on the WAPs.
  C. Increase the signal strength of the router.
  D. Reset the router and reconfigure the wireless settings.
  A. Review the network settings in the OS.

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  Explanation

  The first step in troubleshooting any network issue is to identify the problem and gather information from the user and the device. Reviewing the network settings in the OS can help the technician verify if the laptop is configured correctly to connect to the wireless network, such as the SSID, security type, password, IP address, DNS server, etc. This can also help the technician rule out any software or driver issues that might prevent the laptop from connecting to the network.

  This is a logical and simple step that can be done before attempting any other actions that might affect the network infrastructure or other devices.

  References:

  CompTIA A+ 220-1101 - 5.1 - How to Troubleshoot

  CompTIA A+ Core 1: Troubleshooting Wired and Wireless Networks CompTIA A+ Core 1 (220-1101) Certification Study Guide