Topic 1: Exam Pool A
A user reboots a machine. On rebooting, the user hears one beep, and then an error message is displayed. Which of the following are MOST likely causing this issue? (Select TWO).
A. RAM module
B. Graphics card
C. CPU
D. Boot order
E. USB flash drive
F. Power supply
Explanation: When a user hears one beep on rebooting a machine, and then an error message is displayed, it could indicate that there is a problem with the RAM module or the boot order. The beep sound indicates that the POST process was successful, and the error message indicates that the boot process was unsuccessful. The boot order determines the sequence in which the computer looks for bootable devices. References: CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition by Mike Meyers (Page 693)
A technician needs to add storage to a workstation. The workstation does not have room to add any internal storage, so the technician plans to add an external storage device. Which of the following connection types should the technician MOST likely use?
A. SCSI
B. eSATA
C. PCIe
D. NVMe
Explanation: eSATA is the best choice for adding external storage as it offers a fast transfer rate and is specifically designed for external storage devices. SCSI is an older interface that is rarely used today, PCIe is typically used to add expansion cards to a computer, and NVMe is a newer interface for high-speed solid-state storage, but it is typically used for internal storage devices.
A user requested upgrades to a company-issued laptop to increase its performance while working with a large database stored on drive C. Which of the following tasks should a systems administrator complete to BEST meet this goal? (Select TWO).
A. Configure RAID 1.
B. Install a hybrid drive.
C. Upgrade to 1GB NIC.
D. Increase the RAM.
E. Migrate to a SSD.
F. Upgrade the power supply.
Explanation: To increase the performance of a laptop working with a large database stored on drive C, a systems administrator should increase the RAM and migrate to an SSD. Increasing the RAM will help the laptop to better handle the large database, while migrating to an SSD will improve the speed at which the laptop can access the database. Configuring RAID 1, installing a hybrid drive, upgrading to a 1GB NIC, and upgrading the power supply will not directly improve the laptop's performance when working with a large database. References: CompTIA A+ Certification Exam: Core 1 - Objective 3.1
A technician is setting up a new desktop computer and will be installing the hard drive directly on the motherboard without using cables to connect it. Which of the following will the technician be installing?
A. Thunderbolt
B. eSATA
C. M.2
D. SCSI
Explanation: M.2 is a form factor for solid-state drives (SSDs) that enables direct
attachment to the motherboard without the need for cables. Thunderbolt is a high-speed
interface that supports data transfer, video output, and charging. eSATA is an external
interface for connecting SATA devices. SCSI is an older interface standard for connecting
hard drives, printers, and other peripherals.
Installing a hard drive directly on the motherboard without using cables is usually done with
an M.2 slot.
References: CompTIA A+ Certification Exam Guide, Ninth Edition, Chapter 5
Which of the following concepts would be used by an online retailer to quickly add more web servers during peak sales times?
A. Community cloud
B. Rapid elasticity
C. High availability
D. Metered service
Explanation: Rapid elasticity would be used by an online retailer to quickly add more web
servers during peak sales times.
References: CompTIA A+ Certification Exam Guide,
Exam 220-1001, Page 405
Which of the following would be BEST reason to use a virtual machine as a sandbox?
A. To test new software in a safe environment
B. To increase the efficient use of computing resources
C. To run multiple machines on the same hardware
D. To have dedicated hardware for a single system
Explanation: The main reason to use a virtual machine as a sandbox is to test new
software in a safe environment without risking the integrity of the host operating system.
Using a virtual machine enables the testing of software and allows for the isolation of the
software from the host system.
References: CompTIA A+ Certification Study Guide, Tenth
Edition, pg. 409
A technician is receiving reports that the entire office sporadically loses network connectivity throughout the day. The technician determines the root cause to be EMI. Which of the following cable mediums would be the MOST cost effective without sacrificing system performance?
A. Coaxial
B. Shielded Cat 6
C. Plenum Cat 5e
D. Multimode fiber
Explanation: In this situation, the MOST cost-effective cable medium that would not sacrifice system performance would be B. Shielded Cat 6. Electromagnetic interference (EMI) can disrupt network connectivity by interfering with the signals transmitted over network cables. Shielded Cat 6 cables are designed to provide protection against EMI by incorporating a layer of shielding material around the cable’s conductors. This shielding helps to prevent EMI from interfering with the signals transmitted over the cable.
Which of the following describes the main difference between T568A and T568B cabling standards?
A. The T568B data transfer rate is higher than T568A.
B. The green and the orange cables are interchanged.
C. T568A is used in blue cables, and T568B is used in green cables.
D. The standards use different cable connectors.
Explanation: he main difference between T568A and T568B cabling standards is that the green and orange cables are interchanged12. T568A is designed for backward compatibility with older telephone wires, while T568B is designed for better signal isolation and noise protection for newer networking systems and products3. T568A is used in blue cables, and T568B is used in green cables1. The standards use the same cable connectors.
A technician is commissioning a workstation that is required to have mirrored storage, utilizing two 4TB drives that support one failure. Which of the following BEST meets these requirements?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
Explanation: RAID 1 is a mirrored configuration that utilizes two drives and provides
redundancy by allowing one drive to fail without data loss. This configuration meets the
requirement of mirrored storage with two 4TB drives that support one failure.
References:
CompTIA A+ Certification Exam Guide, Ninth Edition, Chapter 8
Which of the following describes the operational difference between hubs and switches when transmitting data to a specific computer inside the network?
A. Switches only send data to the specific computer, while hubs send data to all computers inside the network.
B. Switches compress data while hubs send uncompressed data
C. Switches receive data and route it to all computers inside the network while hubs receive data and do not route
D. Switches scramble data, while hubs send data in the original form
Explanation: Switches only send data to the specific computer, while hubs send data to all
computers inside the network.
References: CompTIA A+ Certification Exam Guide, Exam
220-1001, Page 323
Which of the following would MOST likely be used to obtain electronic images of a large number of printed documents?
A. NFC device
B. ADF/flatbed scanner
C. Camera/webcam
D. QR scanner
Explanation: ADF/flatbed scanner would most likely be used to obtain electronic images of a large number of printed documents.
References: CompTIA A+ Certification Exam Guide,
Exam 220-1001, Page 351
While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is extremely polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue?
A. The channel is reserved for licensed band use.
B. The channel selection is defective; contact the manufacturer.
C. The channel must be unlocked by the vendor.
D. The device requires a firmware update to unlock the channel.
Explanation: The most likely reason that the technician is unable to select the channel with almost no RF pollution is that it is reserved for licensed band use. Some channels are reserved for specific purposes and require a license to use. These licensed bands are typically used for critical infrastructure, public safety, or military operations, and unlicensed devices are not allowed to use them. References: CompTIA A+ Certification Exam Objectives - 220-1001: 3.3 Compare and contrast common networking hardware devices.
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