220-1101 practice questions 31–40

1. Question 31 · 624 in bank

   A user reports limited or no connectivity on a laptop. A technician runs ipconfig /all with the following result: IPv4 connectivity...limited or none IPv4 address...169.254.254.1 - subnet mask...255.255.0.0 default gateway... Which of the following is the MOST likely cause of this issue?

   • ADHCP failure
   • BARP cache
   • CDNS resolution
   • DDuplicate IP address

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   Answer: A

   Explanation

   The reason why it's A because when DHCP servers are no where to be found in the network, the computer's integrated NIC automatically assigns the APIPA address. Better known as IPv4 link-local IP address.

   Source: Adapted from community discussion — ScorpionNet

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2. Question 32 · 624 in bank

   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?

   • ARelocate 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.
   • BUse 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.
   • CUse the signal strength indicator on a mobile device to roam the coverage area and generate a heat map to isolate zones with weak signals.
   • DTurn off broadcasting of the SSID on the mesh network so that other networks cannot see it.

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   Answer: B

   Explanation

   B. 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. The technician should use a Wi-Fi analyzer to determine the current channel utilization in the mesh network and identify which channel would be the best to use for optimal performance. A channel crowded with other Wi-Fi signals may result in decreased bandwidth and connectivity issues, as well as interference with other wireless devices. By using a Wi-Fi analyzer, the technician can find the least congested channel to use and improve the overall performance of the Wi-Fi mesh network.

   Source: Adapted from community discussion — ronniehaang

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3. Question 33 · 624 in bank

   Select 2

   Which of the following are default ports for HTTP and HTTPS traffic? (Choose two.)

   • A23
   • B25
   • C80
   • D143
   • E389
   • F443

   Show answer

   Answer: CF

   Explanation

   Port 23 enables data transmission via Telnet. A is incorrect Port 25 is used for SMTP (Simple Mail Transfer Protocol). B is incorrect Port 80 is used for HTTP. C is one answer Port 143 uses protocol IMAP. D is incorrect Port 389 uses LDAP. E is incorrect Port 443 is for HTTPS. F is the other answer Sources https://www.techopedia.com/definition/15709/port-80 https://www.howtonetwork.com/comptia-network-study-guide-free/port-numbers-and-network-protocols/ https://www.speedguide.net/port.php?port=389

   Source: Adapted from community discussion — NotAHackerJustYet

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4. Question 34 · 624 in bank

   Documents are not printing out correctly from a laser printer at a conference. Some of the print is missing, and the pages come out unreadable. Which of the following should a technician do to fix this issue?

   • AExchange the transfer roller.
   • BRecalibrate the printer.
   • CClear the jam.
   • DReplace the fuser assembly.

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   Answer: B

   Explanation

   So are we supposed to be answering like we're robots reading off an instruction manual? The first thing to do if this were a real-world situation would be to attempt recalibration. If you don't take out the obvious easiest steps first, you're doing too much, why would you mess with hardware first if the problem is simpler than that? That's costing someone money.

   Source: Adapted from community discussion — GarbanzoBeans

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5. Question 35 · 624 in bank

   While using a popular videoconferencing program, the user selects a webcam, but the software is unable to open the webcam. The webcam was working the previous day. Which of the following should be done to address this issue?

   • AClose other video software and retry.
   • BAdjust the conference software to a compatible resolution.
   • CSwitch the video from the webcam to ג€conferenceג€ mode.
   • DReseat or replace the webcam.

   Show answer

   Answer: A

   Explanation

   CompTIA drops a couple of hints inside the question. First, since the user was able to select the webcam, it is likely to be properly seated since it has been recognized by the operating system. Second, the answer choice says reseat OR REPLACE, and replacing the webcam would be a drastic step to take before first seeing if another program is already using the webcam.

   Source: Adapted from community discussion — oatmealturkey

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6. Question 36 · 624 in bank

   Which of the following is an unsecure remote access protocol?

   • ASSH
   • BHTTPS
   • CSFTP
   • DTelnet

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   Answer: D

   Explanation

   From the Telnet wikipedia site: "Experts in computer security, such as SANS Institute, recommend that the use of Telnet for remote logins should be discontinued under all normal circumstances, for the following reasons: Telnet, by default, does not encrypt any data sent over the connection (including passwords), and so it is often feasible to eavesdrop on the communications and use the password later for malicious purposes. Security-related shortcomings have seen the usage of the Telnet protocol drop rapidly,[11] especially on the public Internet, in favor of the Secure Shell (SSH) protocol, first released in 1995. SSH has practically replaced Telnet, and the older protocol is used these days only in rare cases to access decades-old legacy equipment that does not support more modern protocols."

   Source: Adapted from community discussion — NotAHackerJustYet

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7. Question 37 · 624 in bank

   Which of the following cable types is the standard connector on printers?

   • ADVI
   • BeSATA
   • CUSB
   • DLightning

   Show answer

   Answer: C

   Explanation

   The main answer is that a printer would typically use a USB or Ethernet connection. However, some modern printers also utilize wireless technologies like Bluetooth. The chosen connection will depend on the specific model of the printer and the environment in which it will be used

   Source: Adapted from community discussion — Raffaelloo

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8. Question 38 · 624 in bank

   Which of the following is the MAXIMUM power PoE+ provides?

   • A15.4W
   • B30W
   • C60W
   • D95W

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   Answer: B

   Explanation

   PoE can provide (15.4 watts) over Cat-5 cables. PoE+ switches support devices such as video IP phones, wireless access points with multiple antennas, and complex surveillance cameras. PoE+ can supply up to (30 watts) over Cat-5 cables, (with (25.5W) available to devices. PoE++ switch supports up to (60 watts) of power to each port under (Type 3) PoE++ switch supports up to the highest level of power (100W) on each PoE port under (Type 4) for Ethernet switches.

   Source: Adapted from community discussion — HollerBack

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9. Question 39 · 624 in bank

   A user reports the touch screen on an Android smartphone is not responding to any input. The technician has cleared the cache, restarted the phone, and ensured the phone is fully charged. The issue still persists. Which of the following should the technician replace on the phone to MOST likely resolve the issue?

   • ASystem on a chip
   • BAccelerometer
   • CDigitizer
   • DGyroscope

   Show answer

   Answer: C

   Explanation

   The answer is Digitizer because it's related to the touch screen while accelerometer focuses on motion. Gyroscope is mostly about orientation. So C is correct/

   Source: Adapted from community discussion — ScorpionNet

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10. Question 40 · 624 in bank

    Which of the following is the SAFEST way to replace RAM on a server that has a redundant power supply?

    • AUnplug one power cable
    • BVerify the RAM temperature
    • CUtilize a grounding strap
    • DReplace the RAM while the server is running

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    Answer: C

    Explanation

    C. Utilize a grounding strap. It is important to ensure that the server remains properly grounded when working on it, particularly when handling internal components like RAM. This helps prevent static discharge which can damage delicate components like RAM. By using a grounding strap, the technician is connected to the earth ground and thus any static charge is safely discharged before it can cause harm. Additionally, it is not recommended to unplug one power cable as the redundant power supply may not provide sufficient power to the server. Verifying the RAM temperature is not necessary, as it is not the cause of the issue. And replacing the RAM while the server is running is not safe, as it may cause the server to crash or corrupt data.

    Source: Adapted from community discussion — ronniehaang

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220-1101 practice, question 31. 624 questions available.