CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 101:

  A user wants RAID to be configured on a desktop to allow the fastest speed and maximum storage capacity. Which of the following RAID types should a technician configure to accommodate this request?

  A. 0

  B. 1

  C. 5

  D. 10

  Correct Answer: A

  RAID 0 is a configuration that stripes data across multiple disks without parity or redundancy. It provides the fastest speed and maximum storage capacity among the RAID types listed, but it also has no fault tolerance. RAID 1 mirrors data across two disks, providing redundancy but halving the storage capacity. RAID 5 stripes data across three or more disks with parity, providing fault tolerance but reducing the storage capacity by one disk. RAID 10 combines mirroring and striping across four or more disks, providing both speed and redundancy but reducing the storage capacity by half.

• Question 102:

  Which of the following is an advantage that OLED displays have over LCD displays?

  A. The color does not degrade over time.

  B. The power consumption is lower.

  C. The power contrast results in finer grayscale levels.

  D. A backlight is utilized.

  Correct Answer: B

  OLED (Organic Light Emitting Diode) displays have lower power consumption than LCD (Liquid Crystal Display) displays because they do not require a backlight to produce light. Each pixel in an OLED display can emit its own light, which also allows for higher contrast and finer grayscale levels. However, OLED displays are more prone to color degradation over time than LCD displays, which use filters to create colors. Verified References: OLED vs LCD: How to choose the right display for your phone.

• Question 103:

  An end user needs to upgrade the hard drive on a laptop and wants one that is fast and shock resistant. Which of the following is the BEST option for this end user?

  A. Hybrid HHD/SSD

  B. 5,400rpm HDD

  C. 7,200rpm HDD

  D. NVMe SDD

  Correct Answer: D

  A non-volatile memory express (NVMe) solid state drive (SSD) is the best option for an end user who wants to upgrade the hard drive on a laptop and wants one that is fast and shock resistant.NVMe SSDs use flash memory and PCIe interface to achieve high performance and low latency.SSDs are also more shock resistant than hard disk drives (HDDs) because they have no moving parts.Hybrid HDD/SSD combines both technologies but does not offer the same speed or capacity as pure SSDs.A 5,400rpm HDD or a 7,200rpm HDD are slower and less shock resistant than SSDs

• Question 104:

  A technician is troubleshooting a laptop that is unable to browse the internet when connected to the company's wireless network. The technician has verified network connectivity is functional when using an Ethernet cable. Which of the following should the technician use to check if the laptop's wireless NIC is functional?

  A. Hotspot

  B. Near-field communication

  C. Ethernet tap

  D. Spectrum analyzer

  Correct Answer: A

  A hotspot is a wireless access point that provides internet access to devices that are connected to it. The technician can use a hotspot to check if the laptop's wireless NIC is functional by connecting the laptop to the hotspot and then trying to

  browse the internet. If the laptop is able to browse the internet, then the wireless NIC is functional. Near-field communication (NFC) is a wireless technology that allows two devices to communicate with each other when they are in close

  proximity. NFC is not typically used to check if a wireless NIC is functional.

  An Ethernet tap is a device that is used to monitor network traffic. An Ethernet tap is not typically used to check if a wireless NIC is functional. A spectrum analyzer is a device that is used to measure the frequency spectrum of a signal. A

  spectrum analyzer is not typically used to check if a wireless NIC is functional.

  Therefore, the correct answer is A. Hotspot.

• Question 105:

  A printer technician receives a support request for a laser printer that sometimes cuts off the bottom of the print job. During troubleshooting the technician notices that affected jobs are set for 8.5in x 14in (216mm x 356mm) paper and only print from a particular paper tray. Which of the following actions should the technician perform NEXT?

  A. Verify that the printing trays are correctly set.

  B. Swap printer trays until the print jobs complete as expected.

  C. Replace the tray rollers to ensure proper alignment.

  D. Reset the default to use 8.5in x 11in (216mm x 279mm) paper

  Correct Answer: A

  Reference: https://partners.comptia.org/docs/default-source/resources/a-core-1-content- guide (page 16)

• Question 106:

  A drive failed on a server that was leveraging a RAID disk configuration. The server administrator would like to rebuild the array so it can withstand a potential multidrive failure in the future. Which of the following RAID configurations will the administrator MOST likely select?

  A. 0

  B. 1

  C. 5

  D. 10

  Correct Answer: D

  RAID stands for Redundant Array of Independent Disks, which is a technology that combines multiple disks into a logical unit to improve performance, reliability, or both. There are different types of RAID levels that use different methods of

  data distribution and redundancy.

  RAID 0 is a level that stripes data across multiple disks without any redundancy. It offers the highest performance but no fault tolerance. If any disk fails, the entire array is lost. RAID 1 is a level that mirrors data across two disks. It offers the

  lowest performance but the highest fault tolerance. It can survive the failure of one disk. RAID 5 is a level that stripes data across multiple disks with parity information. It offers a balance between performance and fault tolerance. It can survive

  the failure of one disk, but not two or more disks.

  RAID 10 is a level that combines RAID 1 and RAID 0. It creates a striped array of mirrored pairs. It offers high performance and high fault tolerance. It can survive the failure of one disk in each pair, or multiple disks in different pairs.

  Therefore, if the server administrator wants to rebuild the array to withstand a potential multidrive failure in the future, RAID 10 is the most likely choice.

• Question 107:

  A technician made several upgrades to a computer and then determined the power supplied by the PSU is insufficient. Which of the following would MOST likely cause the insufficiency? (Select TWO).

  A. Replacing the HDD with an SSD

  B. Upgrading the firmware

  C. Adding an optical drive

  D. Adding more RAM

  E. Adding a CMOS battery

  F. Upgrading the graphics card

  Correct Answer: CF

  The amount of RAM has little or no effect on power consumption of PC components - using between 2W - 5.5W. The power consumption for a SATA DVD drive is 15W-27W, for a SATA Blue-Ray Drive is 25W-30W.

• Question 108:

  An integrated webcam on a user's laptop broke, so a technician installed a temporary, external webcam. Since the external webcam installation, other users can only see part of the user's face during videoconferences. Which of the following BEST describes the reason for this issue?

  A. The webcam is not on a level surface.

  B. The webcam driver should be updated.

  C. The webcam is plugged into the wrong USB port.

  D. The webcam is not compatible with the OS.

  Correct Answer: A

  The most likely reason for the issue is that the webcam is not on a level surface, which causes the camera angle to be distorted. The user should adjust the position of the webcam so that it is aligned with the laptop screen and captures the user's face fully. The other options are not relevant to this issue, as they would not affect the camera angle or visibility of the user's face. Verified References: How to Position Your Webcam Correctly.

• Question 109:

  Which of the following components houses the MX record?

  A. DNS

  B. VLAN

  C. DHCP

  D. SMTP

  Correct Answer: A

  The domain name system (DNS) is the component that houses the MX record. The MX record is a type of DNS record that specifies which mail server is responsible for receiving email messages for a domain name. VLAN is an acronym for virtual local area network, which is a logical subdivision of a network that allows devices to communicate as if they were on the same physical segment. DHCP is an acronym for dynamic host configuration protocol, which is a network protocol that assigns IP addresses and other configuration parameters to devices on a network automatically. SMTP is an acronym for simple mail transfer protocol, which is a network protocol that allows sending and receiving email messages over TCP/IP networks

• Question 110:

  A bank wants to leverage cloud computing but would like a cloud solution in which infrastructure is isolated from other businesses. Which of the following cloud models would BEST address the bank's need?

  A. Public

  B. Hybrid

  C. Private

  D. Community

  Correct Answer: C

  A private cloud is a cloud computing model that provides services and resources to a specific organization or group over a private network. A private cloud can offer more security and control than other cloud models, as well as customized infrastructure that suits the organization's needs. A bank would most likely choose a private cloud model to leverage cloud computing while maintaining isolation from other businesses. A public cloud is a cloud computing model that provides services and resources to anyone over the internet. A hybrid cloud is a combination of public and private cloud services that share data and resources.