220-1101合格させる問題集でCompTIA24時間で試験合格できます [Q64-Q88]

220-1101合格させる問題集でCompTIA24時間で試験合格できます

最新問題を使おう220-1101試験問題と解答でPDFで一年間無料更新

CompTIA A+ 認定試験：コア1 (220-1101) は、コンピュータのハードウェア、ソフトウェア、およびネットワークに関連する幅広いトピックをカバーしています。この試験は、コンピュータシステムの基本的な部分、つまりインストール、設定、およびメンテナンスに焦点を当てています。また、トラブルシューティング、セキュリティ、およびモバイルデバイスのサポートなどのトピックもカバーしています。試験は90問から構成され、90分以内に完了する必要があります。合格点は900点満点の675点以上です。

Comptia 220-1101試験は、IT業界でキャリアを始めたいと考えている個人に最適です。この試験は、この分野で経験があり、スキルと知識を向上させたい専門家にも適しています。さらに、この認定は、ITサポート、ヘルプデスク、および技術サポートの役割でキャリアを促進しようとしている個人にとって有益です。

Comptia 220-1101は、Comptia A+認定試験：Core 1としても知られており、ハードウェア、ソフトウェア、ネットワーキング、セキュリティの分野のIT専門家の知識とスキルをテストするために設計された認定試験です。この試験は、comptia A+認定を獲得するために合格する必要がある2つの試験の最初のものです。これは、エントリーレベルのITサポートと技術的役割を実行するために必要なスキルと知識を検証するグローバルに認められた認定です。

質問 # 64
A technician is building a video production workstation that will consist of two high-end GPUs The technician is reusing an existing ATX case. Which of the following should the technician select as the MOST appropriate power supply type?

A. 400W external power supply
B. 1.200W modular power supply
C. 1.5O0W uninterruptible power supply
D. 2x 600W redundant power supplies

正解：B

解説：
A video production workstation that will consist of two high-end GPUs will require a lot of power and a modular power supply. A modular power supply allows the technician to connect only the cables that are needed for the components, which reduces clutter and improves airflow. A 1,200W power supply should be enough to power the two GPUs and other components, but the exact wattage depends on the specifications of the GPUs and other components. A 400W external power supply is not enough to power the workstation and may not be compatible with the ATX case. Two 600W redundant power supplies are unnecessary and may not fit in the ATX case. A 1,500W uninterruptible power supply (UPS) is a device that provides backup power in case of a power outage, but it is not a replacement for a power supply unit (PSU). Reference: https://www.comptia.org/blog/what-is-a-power-supply-unit

質問 # 65
Laura, a customer, has instructed you to configure her home office wireless access point.
She plans to use the wireless network for finances and has requested that the network be setup with the highest encryption possible.
Additionally, Laura knows that her neighbors have wireless networks and wants to ensure that her network is not being interfered with by the other networks.
She requests that the default settings be changed to the following.
Wireless Name: HomeWiFi
Shared Key: CompTIA
Router Password: Secure$1
Finally, Laura wants to ensure that only her laptop and Smartphone can connect to the network.
Laptop: IP Address 192.168.1.100
Hardware Address: 00:0A:BF:03:C4:54
Smartphone: IP Address 192.168.1.101
Hardware Address: 09:2C:D0:22:3F:11
INSTRUCTIONS
Configure Laura's wireless network using the network adapter window.
If at any time you would like to bring back the initial state of the situation, please click the Reset All button.

正解：

解説：
See the explanation below
Explanation
solution as

質問 # 66
An engineer is experiencing unexpected reboots on a graphics workstation when rendering complex 3-D models. The workstation is configured with a 115V power supply that is rated at 200W and connected to a UPS. The central processing unit contains 16 hyperthreaded cores, and a discrete graphics solution utilizing an 8-pin power connector is installed in a PCI Express x16 slot. Which of the following indicates where the technician should begin troubleshooting?

A. The UPS, as 115V is insufficient for the configuration and should be increased to 220V
B. The motherboard, as only standard PCI slots should be used for high-end graphics cards, not PCI Express slots
C. The power supply, as 200W is insufficient when the GPU is heavily tasked
D. The graphics card, as it is the component that triggers the unexpected reboots

正解：C

解説：
The unexpected reboots on a graphics workstation when rendering complex 3-D models may be caused by insufficient power supply. The workstation is configured with a 115V power supply that is rated at 200W, which may not be enough when the GPU is heavily tasked. The technician should begin troubleshooting by checking the power supply.

質問 # 67
A user attempts to connect a laptop to a projector but receives the following message from the projector: Out of Range. Which of the following needs to be addressed first?

A. Check the video cable and replace it if necessary.
B. Set the computer's display settings to extend/duplicate.
C. Verify that the laptop video card driver is the most up-to-date version.
D. Change the resolution settings.

正解：D

解説：
Explanation
The most likely answer is A. Change the resolution settings.
The error "Out of Range" normally means that the resolution being output by the computer is not compatible with the projector. The resolution is the number of pixels that are displayed on the screen. If the resolution is too high for the projector, it may not be able to display the image correctly or at all12.
To resolve this issue, you should try lowering the resolution settings on your laptop to match the native resolution of the projector or a lower one. You can do this by following these steps1:
*Right-click on an empty area of your desktop and select Display settings.
*Under Scale and layout, click on Display resolution and choose a lower option from the drop-down menu.
*Click Apply and then Keep changes.
*Reconnect your laptop to the projector and check if the image is displayed properly.
If changing the resolution settings does not help, you may need to check other factors, such as the video cable, the display settings, or the video card driver. However, these are less likely to cause the "Out of Range" error than the resolution settings.

質問 # 68
A user connects a smartphone to a laptop. Which of the following types of networks has the user created?

A. LAN
B. WLAN
C. MAN
D. PAN

正解：D

解説：
When a user connects a smartphone to a laptop, they create a Personal Area Network (PAN). A PAN is a type of network used for communication between devices in close proximity to each other, typically within a range of a few meters or less. This type of network is commonly used for wireless communication between personal devices, such as connecting a smartphone to a laptop for file sharing or internet access. Reference: CompTIA A+ Certification Exam Objectives - 220-1001: 1.1 Explain common connectors and their uses.

質問 # 69
Which of the following server types can dynamically assign primary and secondary DNS?

A. Global catalog server
B. Web server
C. Name server
D. DHCP server

正解：D

解説：
Explanation
A DHCP (Dynamic Host Configuration Protocol) server is a server type that can dynamically assign IP addresses and other network configuration parameters to clients, such as primary and secondary DNS (Domain Name System) servers. DNS servers are responsible for resolving hostnames to IP addresses and vice versa. A global catalog server, a web server, and a name server are not involved in DHCP operations.

質問 # 70
A customer reports that, after a technician replaced a laptop screen, the laptop is only able to connect to a Wi-Fi network if it is positioned very close to a wireless access point. Which of the following should the technician verify first?

A. Airplane mode is disabled.
B. The battery is charging.
C. The device has the latest OS updates.
D. The internal antennas are connected.
E. The wireless device drivers are the latest version

正解：D

解説：
Explanation
The internal antennas are the components that allow the laptop to receive and transmit wireless signals from and to the wireless access point. The internal antennas are usually located inside or around the laptop screen, and they are connected to the wireless network card or adapter by thin wires or cables. If the internal antennas are disconnected, damaged, or misaligned, the laptop may experience wireless connectivity issues, such as low signal strength, limited range, or intermittent connection.
In this scenario, a customer reports that, after a technician replaced a laptop screen, the laptop is only able to connect to a Wi-Fi network if it is positioned very close to a wireless access point. This could indicate that the technician accidentally disconnected or damaged the internal antennas during the screen replacement process, and that the laptop is not receiving enough wireless signals from the wireless access point. Therefore, the first thing that the technician should verify is that the internal antennas are properly connected and positioned inside or around the laptop screen.
To verify and reconnect the internal antennas, the technician should follow these steps :
Turn off the laptop and disconnect it from any power source or external device.
Remove the battery and any screws that secure the laptop screen bezel.
Carefully pry off the laptop screen bezel and expose the internal antennas.
Check if the internal antennas are intact and securely connected to the wireless network card or adapter.
The internal antennas may have different colors or labels, such as black, white, gray, main, aux, or 1, 2.
If the internal antennas are disconnected or loose, reconnect them to the corresponding connectors on the wireless network card or adapter. Make sure that they snap into place and that there is no gap or bend in the wires or cables.
If the internal antennas are damaged or broken, replace them with compatible ones. Make sure that they have the same length and shape as the original ones.
Realign and reposition the internal antennas inside or around the laptop screen. Make sure that they do not interfere with any other component or cable, and that they follow the original path and direction.
Reattach the laptop screen bezel and secure it with screws.
Reinsert the battery and turn on the laptop.
Test the wireless connectivity and performance of the laptop.

質問 # 71
Which of the following devices is capable of dynamically distributing an IP address?

A. Injector
B. Hub
C. Switch
D. Router

正解：D

解説：
Explanation
A router is a device that can dynamically distribute an IP address to the devices connected to its network using a protocol called DHCP (Dynamic Host Configuration Protocol). DHCP allows a router to automatically assign an IP address and other network configuration information to a device when it joins the network, without requiring manual intervention from the administrator. A router can also act as a gateway between different networks, such as a local area network (LAN) and the internet1.
A hub is a device that connects multiple devices on a network and forwards data packets between them.
However, a hub does not assign IP addresses or perform any routing functions. A hub operates at the physical layer of the OSI model and does not understand IP addresses or other network protocols.
A switch is a device that connects multiple devices on a network and forwards data packets between them based on their MAC addresses. A switch can improve the performance and security of a network by reducing collisions and isolating traffic. However, a switch does not assign IP addresses or perform any routing functions. A switch operates at the data link layer of the OSI model and does not understand IP addresses or other network protocols.
An injector is a device that provides power to another device over an Ethernet cable, such as a wireless access point or a security camera. This is also known as Power over Ethernet (PoE). An injector does not assign IP addresses or perform any routing functions. An injector operates at the physical layer of the OSI model and does not understand IP addresses or other network protocols.

質問 # 72
A computer that contains critical data has not been backed up and will not boot past a S. M.A. R. T, error that indicates imminent hard disk failure.
Which of the following actions should the technician take FIRST?

A. Attempt to boot the operating system in safe mode
B. immediately replace the hard drive generating the SMART error
C. Run diagnostics on the faulty hard drive using a boot disk
D. Turn off S. M. A. R. T, monitoring in the computer's BIOS settings

正解：B

質問 # 73
A user that works is sales is reporting that the output on each page printed from a laser has duplicate images. Which of the following should be performed FIRST to eliminate the ghost images?

A. Upgrade the printer firmware.
B. Replace the printer's fuser.
C. Clean the toner drums and rollers
D. Change the paper weight setting.

正解：A

質問 # 74
Which of the following standards supports MIMO technology?

A. 802.11g
B. 802.11b
C. 802.11a
D. 802.11n

正解：D

解説：
The 802.11n wireless networking standard supports Multiple Input Multiple Output (MIMO) technology. MIMO technology uses multiple antennas on both the transmitting and receiving devices to improve wireless performance by increasing the amount of data that can be transmitted simultaneously. 802.11a, 802.11b, and 802.11g do not support MIMO technology. Reference: CompTIA A+ Certification Exam: Core 1 - Objective 3.3

質問 # 75
Which of the following is the PRIMARY security concern with virtual machine escape?

A. Rogue virtual machines installed on the hypervisor
B. Compromising the hypervisor
C. Cross-site scripting
D. Overutilization of resources

正解：B

解説：
The primary security concern with virtual machine escape is compromising the hypervisor, which can allow attackers to gain access to other virtual machines or the host system. Virtual machine escape refers to an attack that allows a guest virtual machine to break out of its isolated environment and access other parts of the system.

質問 # 76
A help desk technician has been tasked with installing an IP phone in a small office with an unmanaged switch. When connected to an RJ45 receptacle, the phone does not boot. Which of the following is the QUICKEST way to resolve this issue?

A. Change ports on the switch.
B. Upgrade the Ethernet cable to the latest specification.
C. Install a PoE injector.
D. Replace the phone.

正解：C

質問 # 77
A technician needs to increase the available RAM on a virtual workstation. Which of the following should the technician do?

A. Upgrade to the latest DDR5 modules.
B. Use a hypervisor to adjust the resource allocation.
C. Increase the ECC memory timings in the BIOS.
D. Clear the temporary files on the workstation's boot drive.

正解：B

解説：
A hypervisor is a software layer that manages and allocates resources for virtual machines (VMs) on a physical host machine. A technician can use a hypervisor to adjust the resource allocation for a virtual workstation, such as increasing the amount of RAM assigned to it from the available pool of memory on the host machine. This can improve the performance and functionality of the virtual workstation without requiring any hardware changes or modifications. Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study-guide (page 59)

質問 # 78
A network technician has been tasked with creating a patch cable. The RJ45 connectors will not slay attached to the cable. Which of the following tools Is needed to fix this Issue?

A. Punchdown tool
B. Cable tester
C. Loopback plug
D. Crimper

正解：D

解説：
Explanation
A crimper is a tool that is used to crimp (attach) an RJ45 connector onto the end of a patch cable. The crimper applies pressure to the connector to make a permanent connection between the connector and the cable, ensuring that the connector will stay attached to the cable.
A cable tester is used to test the connectivity of a network cable. A punchdown tool is used to terminate network cables in a patch panel or keystone jack. A loopback plug is a diagnostic tool that is used to test network interfaces by simulating network traffic.

質問 # 79
Which of the following network types would be used in a server room to connect virtual servers lo high-speed storage?

A. SAN
B. PAN
C. WAN
D. MAN

正解：A

解説：
A Storage Area Network (SAN) is a dedicated, high-speed network that connects servers to data storage devices. SANs are used in server rooms to provide high-speed storage access to virtual servers.

質問 # 80
Which of the following is a characteristic of cloud computing that prioritizes reliability?

A. Hybrid
B. High availability
C. Shared resources
D. Rapid elasticity

正解：B

解説：
Explanation
High availability is a characteristic of cloud computing that prioritizes reliability. High availability means that cloud services can be accessed without interruption or failure, even in the event of a disaster or a hardware malfunction. This is achieved by using redundant components, backup systems, load balancing, and failover mechanisms. According to the CompTIA Core1 objectives, one of the benefits of cloud computing is high availability. A research paper on cloud reliability also defines high availability as the ability to provide continuous service despite faults or failures.

質問 # 81
A natural disaster occurred, and the storage system for the development team is unrecoverable. The technician is preparing replacement storage arrays that include a hypervisor with the capacity to support several virtual machines. Two separate bays are available, and both should be utilized.
Requirements for the primary array include the following:
* No need to be scalable
* Very fast on reads
* Fault tolerance of one drive
* Ability to function with only one drive
* Easily recoverable data
* High redundancy
* Minimum number of drives
Requirements for the secondary array include the following:
* Fault tolerance of one drive
* Total space of 600G3
* Best write performance
* Minimum number of drives
Instructions:
Drag and Drop the appropriate Hard Drives. Then Open each array to complete the configuration.

正解：

解説：

Explanation
Primary Array:
Drag and drop two 120 GB SSD hard drives to the primary array bay.
Open the primary array and select RAID 1 as the RAID level. RAID 1 provides fault tolerance of one drive, ability to function with only one drive, easily recoverable data, high redundancy, and very fast on reads. It also does not need to be scalable and uses the minimum number of drives (two) for RAID 1.
Confirm the configuration and close the primary array.
Secondary Array:
Drag and drop two 300 GB SSD hard drives to the secondary array bay.
Open the secondary array and select RAID 0 as the RAID level. RAID 0 provides the best write performance and uses the minimum number of drives (two) for RAID 0. It also provides a total space of
600 GB (300 GB x 2), which meets the requirement.
Confirm the configuration and close the secondary array.
You have completed the configuration of the storage arrays.

質問 # 82
A graphic designer wants to purchase a laptop that provides the most accurate color spectrum available when viewed from as many different angles as possible. Which is the following display types would best meet the graphic designer's requirements?

A. OLED
B. Plasma
C. VGA
D. LCD

正解：A

解説：
Explanation

Graphic design
Explore
The correct answer is C. OLED.
OLED stands for Organic Light-Emitting Diode, and it is a type of display technology that uses organic compounds to create light and color. Unlike LCD (Liquid Crystal Display) or Plasma displays, OLED does not require a backlight or a filter to produce images. This means that OLED can offer higher contrast, wider color gamut, and better viewing angles than other display types.
LCD displays use liquid crystals that are sandwiched between two polarizing filters and illuminated by a backlight. The liquid crystals can change their orientation and block or allow light to pass through the filters.
LCD displays can have different panel types, such as IPS (In-Plane Switching), VA (Vertical Alignment), or TN (Twisted Nematic), which affect the color accuracy, response time, and viewing angles of the display.
Plasma displays use gas-filled cells that are electrically charged to create plasma, which emits ultraviolet light.
The ultraviolet light then excites phosphors that emit visible light and color. Plasma displays can produce deep blacks and high contrast, but they are also prone to image retention, screen burn-in, and high power consumption.
VGA stands for Video Graphics Array, and it is not a display type but a video interface standard that was introduced in 1987. VGA can transmit analog signals from a computer to a monitor, but it has low resolution and limited color depth compared to modern digital standards such as HDMI or DisplayPort.
Therefore, OLED is the best display type for graphic designers who want the most accurate color spectrum and the widest viewing angles. OLED displays can also be thinner and lighter than LCD or Plasma displays, which makes them ideal for laptops. However, OLED displays are also more expensive and less durable than other display types, and they may suffer from image retention or burn-in over time.

質問 # 83
A startup company is outgrowing its current office space and is requiring employees to work remotely. The company must comply with government-enforced requirements to safeguard all aspects of data, so the IT department plans to maintain complete control over users' operating systems. Which of the following should the IT department implement?

A. laaS
B. VPN
C. SaaS
D. VDI

正解：D

解説：
The IT department should implement VDI. Virtual Desktop Infrastructure (VDI) is a technology that allows users to access a desktop operating system from a remote location. VDI provides complete control over users' operating systems, which is important for safeguarding data. VDI also provides a secure way to access data from remote locations, which is important for compliance with government-enforced requirements1.

質問 # 84
A technician is troubleshooting a computer that is not completing POST and gets stuck at the manufacturer logo screen. All internal, removable parts have been disconnected and only the minimum parts necessary to POST were reconnected. However, the symptoms remain the same. Which of the following should the technician try NEXT?

A. Remove and test the power supply.
B. Change the CMOS battery.
C. Test the RAM in different slots, one at a time.
D. Replace the motherboard.

正解：C

解説：
Every computer has a CMOS battery and when you remove that battery, your computer will work almost the same as before. The only difference is you won't be able to save any settings in the BIOS, which includes the date and time. If your PC is not booting after removing CMOS, you need to make sure that you have your CPU and RAM connected because it's not possible for your system to boot without those.. Your motherboard and computer will be able to boot just fine even without a CMOS battery present. The only issue is all your BIOS settings will be reset and the time and date will be inaccurate. You will also be unable to save BIOS settings.

質問 # 85
A user visits the desk to report that a smartphone takes more than a day to fully charge. The user has already tested multiple wall outlets and swapped the charging cable, but the results are the same. Which of the following should the technician do FIRST?

A. Complete a factory reset of the phone
B. Check that all missing smartphone OS updates are applied.
C. Ensure all unnecessary connectivity features are disabled.
D. Verify the power rating of the charger.

正解：D

質問 # 86
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. Upgrade to 1GB NIC.
C. Increase the RAM.
D. Install a hybrid drive.
E. Upgrade the power supply.
F. Migrate to a SSD.

正解：A、C

質問 # 87
A university student was able to boot from a live Linux CD on a computer in a shared space on campus.
Which of the following will BEST prevent this type of action from occurring in the future?