CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 691:

  Multiple users contact the help desk to report issues with the network fileshares. Files are accessible, but performance is very slow. Which of the following should a technician perform first?

  A. Defragment the files on the network share.

  B. Ask the users to perform a network speed test.

  C. Check the RAID drive status LEDs.

  D. Start the process of rebuilding the array.

  Correct Answer: C

  Explanation: The correct answer is C. Check the RAID drive status LEDs.

  RAID stands for Redundant Array of Independent Disks, which is a technology that combines multiple physical disks into a logical unit that provides improved performance, reliability, or both1. RAID can be implemented using hardware or software, and there are different levels of RAID that use different methods of data distribution and redundancy1. One of the common issues with RAID is disk failure, which means that one or more of the disks in the array stop working properly. Disk failure can affect the performance and availability of the network fileshares, depending on the RAID level and the number of failed disks2. For example, RAID 0, which uses striping to split data across multiple disks, has no redundancy and will lose all data if any disk fails. RAID 1, which uses mirroring to duplicate data on two disks, can tolerate one disk failure and still function. RAID 5, which uses striping with parity to distribute data and error correction information across three or more disks, can also tolerate one disk failure and still function1. One of the ways to detect disk failure is to check the RAID drive status LEDs, which are lights that indicate the health and activity of each disk in the array. Different RAID controllers may have different LED patterns and colors, but generally, a green LED means that the disk is working normally, a red LED means that the disk has failed or is offline, an amber LED means that the disk is degraded or rebuilding, and a blinking LED means that the disk is active or busy34. The first step that a technician should perform when troubleshooting network fileshare issues is to check the RAID drive status LEDs to see if any disk has failed or is degraded. This can help identify the cause of the problem and determine the appropriate solution. For example, if a disk has failed in a RAID 1 or RAID 5 array, the technician can replace the failed disk and rebuild the array to restore performance and redundancy. If a disk has failed in a RAID 0 array, the technician will need to restore the data from a backup2. The other options are not the best steps to perform first. Defragmenting the files on the network share may improve performance by reducing fragmentation, but it will not solve the problem if there is a disk failure in the RAID array. Asking the users to perform a network speed test may help diagnose network issues, but it will not help identify disk issues in the RAID array. Starting the process of rebuilding the array may be necessary after replacing a failed disk, but it should not be done before checking the RAID drive status LEDs.

• Question 692:

  A technician assembled a new PC. After a few minutes, the computer slows down and then shuts itself off. Which of the following is the most likely cause of the failure?

  A. Thermal paste was not used.

  B. The GPU needs additional power.

  C. The memory is insufficient.

  D. The motherboard is incompatible.

  Correct Answer: A

• Question 693:

  Which of the following is the primary function of a DNS service?

  A. To dynamically assign network addresses to hosts

  B. To translate domain names to IP addresses

  C. To authenticate users to remote servers

  D. To serve files over the network

  Correct Answer: B

• Question 694:

  A cloud engineer, who is designing a cloud architecture, needs to ensure the solution is able to immediately fail over to another region in case of an outage and also scale up in the event of high utilization. Which of the following should the engineer Implement? (Select two).

  A. High availability

  B. Elasticity

  C. Cold storage

  D. Machine learning

  E. Metered utilization

  F. Virtualization

  Correct Answer: AB

  Explanation: The answer is A. High availability and B. Elasticity.

  High availability is the ability of a system to remain operational and accessible with minimal or no downtime, even in the event of failures, disasters, or disruptions. High availability can be achieved by designing a system that has redundancy,

  fault tolerance, and disaster recovery capabilities. For example, a cloud engineer can design a system that replicates data and resources across multiple regions, zones, or availability domains, and uses load balancing and failover

  mechanisms to distribute the workload and handle failures gracefully12.

  Elasticity is the ability of a system to scale up or down automatically in response to changes in demand or utilization. Elasticity can be achieved by designing a system that can dynamically allocate and deallocate resources based on

  predefined metrics, policies, or triggers. For example, a cloud engineer can design a system that uses auto-scaling groups, horizontal or vertical scaling strategies, and on-demand or spot instances to optimize the performance and cost of the

  system32.

  By implementing high availability and elasticity, a cloud engineer can ensure that the solution is able to immediately fail over to another region in case of an outage and also scale up in the event of high utilization. These are two important

  aspects of building reliable and scalable cloud architectures. Therefore, options A and B are the correct answers.

• Question 695:

  A technician is asked to set up a new laptop for a coworker. Which of the following storage devices and interfaces will provide the best performance? (Select two).

  A. 15,000rpm HDD

  B. M.2 SSD

  C. 10,000rpm HDD

  D. NVMe interface

  E. SATA interface

  F. mSATA interface

  Correct Answer: BD

  M.2 SSD and NVMe interface are the best options for storage devices and interfaces that provide the best performance. M.2 SSD is a form factor that allows for faster data transfer and lower power consumption than traditional SATA SSDs.

  NVMe is a protocol that enables direct communication between the SSD and the PCIe bus, bypassing the SATA controller and reducing latency and overhead. Together, they offer the highest speed and efficiency for storage devices.

  References:

  The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook1, page 3-17, section "M.2 Interface".

  The Official CompTIA A+ Core 1 (220-1101) Certification Study Guide2, page 3-21, section "NVMe".

• Question 696:

  Which of the following models is an example of metered utilization?

  A. Reserved instance

  B. Pay-as-you-go

  C. Subscription-based

  D. Multitenant

  Correct Answer: B

  Explanation: Metered utilization is a pricing model for cloud computing services, where the customer pays only for the amount of resources that are consumed, such as CPU time, memory, storage, bandwidth, etc. The customer is billed based on the actual usage of the resources, rather than a fixed or upfront fee. Metered utilization is also known as usage- based pricing or pay-per-use12. Pay-as-you-go is an example of metered utilization, where the customer pays for the cloud resources on demand, without any long-term commitment or contract. The customer can scale up or down the resources as needed, and only pay for what is used. Pay-as-you-go is a flexible and cost-effective option for customers who have unpredictable or variable workloads, or who want to try out new services or features12. The other options are not examples of metered utilization. Reserved instance is a pricing model where the customer pays a discounted rate for a fixed amount of cloud resources for a specified period of time, such as one or three years. The customer can reserve the resources in advance, and benefit from lower costs and guaranteed availability. Reserved instance is suitable for customers who have predictable or steady workloads, or who want to optimize their budget12. Subscription-based is a pricing model where the customer pays a fixed fee for a set of cloud services or features for a certain period of time, such as monthly or annually. The customer can access the services or features as much as needed, without worrying about the usage or consumption of the resources. Subscription-based is suitable for customers who want to have a consistent and predictable cost, or who want to access premium or exclusive services or features12. Multitenant is not a pricing model, but a cloud architecture where multiple customers share the same physical or virtual resources, such as servers, databases, applications, etc. The resources are isolated and secured for each customer, and the customers can benefit from lower costs, higher scalability, and faster updates. Multitenant is a common characteristic of public cloud services, where the cloud provider manages and maintains the resources for the customers12. References: CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 4: Cloud Computing and Virtualization, Section 4.2: Cloud Computing Concepts, Page 261 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) ram, Chapter 6: Cloud Computing and Virtualization, Section 6.2: Cloud Computing Concepts, Page 241

• Question 697:

  A technician recently installed a new printer that is being shared over the network via a 64- bit Windows Print Server Two users, who have computers with a legacy OS, are unable to print to this new printer. Which of the following should the technician do to resolve this issue?

  A. Enable 32-bit drivers on the Print Server.

  B. Enable Print Spooler and restart the computer.

  C. Run Windows Update on the users' computers_

  D. Update the computers to a 64-bit driver.

  Correct Answer: A

  The correct answer is A. Enable 32-bit drivers on the Print Server. A print server is a computer or device that manages the printing requests from multiple clients over a network. A print server can share one or more printers with different types of clients, such as Windows, Mac, or Linux. However, to ensure compatibility and functionality, the print server must have the appropriate drivers for each printer and each client1. A driver is a software component that enables the communication and interaction between a device and an operating system. A driver must match the specifications and features of the device, as well as the architecture and version of the operating system. A driver that is incompatible with either the device or the operating system may cause errors, malfunctions, or performance issues2. In this scenario, the technician installed a new printer that is being shared over the network via a 64-bit Windows Print Server. This means that the print server has a 64-bit operating system and a 64-bit driver for the printer. However, two users who have computers with a legacy OS (an older or outdated operating system) are unable to print to this new printer. This may be because their computers have a 32-bit operating system and require a 32-bit driver for the printer. To resolve this issue, the technician should enable 32-bit drivers on the Print Server. This means that the technician should install and configure a 32-bit driver for the printer on the print server, in addition to the existing 64-bit driver. This way, the print server can support both 64-bit and 32-bit clients, and allow them to print to the same printer34. To enable 32-bit drivers on a Windows Print Server, the technician can follow these steps4: On the print server, open Control Panel and select Devices and Printers. Right-click on the printer that needs a 32-bit driver and select Printer Properties. Click on the Sharing tab and check the box that says Share this printer. Click on Additional Drivers and check the box that says x86 (for 32-bit). Click OK and follow the instructions to install and configure the 32-bit driver. For more information about print servers, drivers, and compatibility issues, you can refer to the following web search results: What is a Print Server?, What is a Device Driver?, How to Install Additional Drivers for Shared Printers, How to Enable 32-Bit Drivers on Windows Server.

• Question 698:

  A laptop is experiencing slow performance writing data. Which of the following is the best component for a technician to upgrade to fix the issue?

  A. RAM

  B. HDD

  C. TPM

  D. CPU

  Correct Answer: B

  The best component for a technician to upgrade to fix the issue of slow performance writing data is B. HDD. HDD stands for hard disk drive, which is a type of storage device that uses physical disks to store data. HDDs have moving parts that can slow down the read and write operations, especially when the data is fragmented or the disk is full12. A better alternative to HDDs is SSDs, which stands for solid state drives. SSDs use flash memory and do not have any moving parts. SSDs can read and write data faster and use less power, which can improve the performance and battery life of the laptop13. Upgrading to an SSD can provide a significant improvement in performance2. The other components are not as relevant or effective as upgrading the HDD. RAM stands for random access memory, which is a type of memory that stores temporary data for the CPU to process. RAM can affect the overall speed of the laptop, but it does not directly affect the writing performance of the storage device1. TPM stands for trusted platform module, which is a security chip that encrypts and protects data on the laptop. TPM does not affect the performance of the laptop, but rather its security1. CPU stands for central processing unit, which is the main processor of the laptop that executes instructions and calculations. CPU can affect the performance of the laptop, but it is not as easy or cost- effective to upgrade as the HDD1.

• Question 699:

  Which of the following is most likely used to control door access?

  A. DMCA

  B. DRM

  C. RFID

  D. VPN

  Correct Answer: C

  Explanation: RFID stands for Radio Frequency Identification, and it is a technology that uses electromagnetic fields to identify and track objects that have RFID tags attached to them. RFID tags are small devices that store information and can be read by RFID readers. RFID is most likely used to control door access because it allows for contactless and convenient authentication of authorized personnel. For example, an employee can use an RFID card or key fob to unlock a door by holding it near an RFID reader installed on the door. The reader will scan the tag and verify its ID number with the access control system, which will grant or deny access based on the predefined rules and permissions. RFID is a common and widely used type of door access control system, as it offers security, efficiency, and flexibility. References: Some additional references for the answer are: IP Door Access Control - Kintronics Door Access Control: A Complete Guide | Swiftlane Best Door Access Control System: How It Works and Features - ButterflyMX

• Question 700:

  A technician is troubleshooting a laptop that displays a blank screen when the user turns it on. The technician shines a flashlight into the LCD and sees a faint image. Which of the following is the most likely cause of the issue?

  A. Defective inverter

  B. Incompatible video driver

  C. Incorrect input source

  D. Burned-out bulb

  Correct Answer: A

  Explanation: The most likely cause of the issue is a defective inverter. An inverter is a device that converts the direct current (DC) power from the laptop battery or adapter to the alternating current (AC) power that the LCD backlight bulb needs. The backlight bulb is a fluorescent lamp that illuminates the LCD screen and makes the image visible. If the inverter is defective, it may not provide enough power to the backlight bulb, or it may stop working intermittently. This can result in a dim, dark, or blank screen, even though the LCD panel is still functioning and displaying a faint image. To troubleshoot a defective inverter, the technician can follow these steps: Connect an external monitor to the laptop and check if the image is displayed normally. If the external monitor works fine, it means that the laptop video card and driver are not the cause of the issue. Shine a flashlight into the LCD screen and look for a faint image. If the image is visible, it means that the LCD panel is not the cause of the issue. Check the inverter cable and connector for any damage, loose connection, or corrosion. The inverter cable is a thin wire that runs from the laptop motherboard to the inverter board, which is usually located at the bottom of the LCD screen. The inverter connector is a small plug that connects the inverter cable to the inverter board. The technician can try to reseat the inverter cable and connector, or replace them if they are faulty. Check the inverter board for any damage, burn marks, or blown fuses. The inverter board is a small circuit board that contains the inverter and other components. The technician can try to test the inverter board with a multimeter, or replace it if it is defective. References: How to fix laptop screen flickering problem - Windows 101 How to Fix a Laptop Screen That's Flickering, Black, or Has Lines2 How to Fix a Dim Laptop Screen | Techwalla3 How to Test a Laptop Inverter | It Still Works4 How to Replace a Laptop Inverter Board | Chron.com5