220-1101無料問題集「CompTIA A+ Certification Exam: Core 1」

質問 1

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 DHCP server is not reachable from theuser's device.

（C）The website is offline and not responding.

（D）The DNS settings are not configured on theuser's device.

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

A technician needs to configure a firewall to enable network printing. Which of the following network pons sh0Cd be opened? (Select two(

（A）22 (Telnet)

（B）LPTI

（C）515 (LDP)

（D）21 (FTP)

（E）25 (SMTp)

（F）631 (IPP)

正解：C、F 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

A Wi-Fi mesh network has been optimized to eliminate poor coverage areas, yet users still experience decreased bandwidth and connectivity issues. Which of the following actions should the technician take NEXT?

（A）Use the signal strength indicator on a mobile device to roam the coverage area and generate a heat map to isolate zones with weak signals.

（B）Relocate any large, dense, solid, and metal objects, such as mirrors and file cabinets, in the mesh network coverage area to the perimeter so that wireless reflections, absorptions, and occlusions are minimized.

（C）Use a Wi-Fi analyzer to determine whether the channel in use is overcrowded and to identify which channel the mesh network should use for best performance.

（D）Turn off broadcasting of the SSID on the mesh network so that other networks cannot see it.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

A printer displays an error message even after a paper jam is cleared. Which of the following should a technician do to fix the issue?

（A）Run internal printer diagnostics.

（B）Change the duplex settings.

（C）Verify the pickup roller is functioning.

（D）Check the paper path for a blocked sensor.

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

Which of the following is considered a connectionless protocol?

（A）HTTPS

（B）UDP

（C）SSH

（D）TCP

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

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）Upgrading the graphics card

（B）Replacing the HDD with an SSD

（C）Adding an optical drive

（D）Adding a CMOS battery

（E）Upgrading the firmware

（F）Adding more RAM

正解：A、F 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 7

A company in a large building uses a wireless network for its workstations. After a new company moves into the building on the floor below, the old company's wireless network begins experiencing connectivity Issues.
Which of the following is the most likely cause?

（A）High latency

（B）Limited connectivity

（C）External interference

（D）Port flapping

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

A user is requesting a headset that can be physically connected to a laptop for online conference calls. Which of the following connections should the headset use?

（A）USB

（B）Bluetooth

（C）Thunderbolt

（D）DVI

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 9

A user added a heater underneath a desk, row an external monitor not working. A technician wanted the monitor gets power. Which of the following should the technician do next?

（A）Have the user unplug me heater

（B）Open the display settings on me computer

（C）Ensure a VGA cable is connected property

（D）Replace the monitor.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

A customer's Windows tablet PC was dropped and is no longer responding to touch input on the left half of the screen. The screen protector has several scratches. but the glass is not broken. Which of the following should a technician do to diagnose the issue?

（A）Replace the damaged screen protector

（B）Update the device drivers.

（C）Test the digitizer

（D）Perform a factory reset.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

Which of the following allows all VMs in a virtual environment to have RAM allocated for use?

（A）Resource pooling

（B）Synchronization

（C）Measured service

（D）Containerization

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 12

A technician is selecting RAM for a new high-end workstation. The motherboard has eight slots that support DDR5 memory. Which of the following should the technician do to optimize performance?

（A）Increase the virtual RAM.

（B）Use the minimum number of modules.

（C）Utilize all channels.

（D）Increase memory timings.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 13

A user on a SOHO network is unable to watch online videos, even at 240 pixels. The technician runs ipconfig from the user's computer and records the following:

The technician then connects a test laptop to the router via the user's Cat 5 cable and records the following information:

Which of the following is MOST likely causing the user's issue?

（A）Faulty NIC

（B）Incorrect IP address

（C）Misconfigured default gateway

（D）Bad network cable

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

220-1101 無料問題集「CompTIA A+ Certification Exam: Core 1」

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