220-1101 practice questions 481–490

1. Question 481 · 624 in bank

   Select 2

   A technician is conducting the following tests on a laptop with a wireless NIC: • ping of the default gateway • ping of the localhost • tracert of the IP address of the default gateway Which of the following will the technician find by running these tests? (Choose two.)

   • ADNS suffix
   • BConnection latency
   • CFirewall status
   • DWireless signal strength
   • ESubnet mask of the network
   • FMAC address of the wireless NIC

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   Answer: BE

   Explanation

   Running the described tests on a laptop with a wireless NIC will provide the following information: B. Connection latency: The ping tests (ping of the default gateway and ping of the localhost) will help determine the latency or delay in establishing communication with these destinations. Higher latency could indicate network congestion or connectivity issues. E. Subnet mask of the network: Traceroute (tracert) to the IP address of the default gateway will provide information about the path taken by packets to reach the default gateway. Additionally, it may reveal details about the subnet mask used in the network configuration.

   Source: Adapted from community discussion — Duke_CT

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2. Question 482 · 624 in bank

   Which of the following protocols provides the fastest bandwidth?

   • A802.11a
   • B802.11ac
   • C802.11ax
   • D802.11n

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   Answer: C

   Explanation

   Among the options provided, the protocol that offers the fastest bandwidth is: C. 802.11ax 802.11ax, also known as Wi-Fi 6, provides faster speeds and higher efficiency compared to the other protocols listed. It offers significant improvements in throughput and capacity, making it capable of delivering the highest bandwidth among the options provided.

   Source: Adapted from community discussion — Duke_CT

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3. Question 483 · 624 in bank

   A customer is reporting that some of the keys at the bottom edge on a laptop are hard to press and the track pad buttons require significant force to click. The technician inspects the laptop and does not notice any cracks or other damage to the chassis or screen. Which of the following is the most likely cause of the issue?

   • AThe customer dropped the laptop.
   • BThe digitizer has failed.
   • CThe battery is swollen.
   • DAn open bottle of rubbing alcohol fell onto the keyboard.

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   Answer: C

   Explanation

   Given the symptoms described and the absence of visible damage to the laptop, the most likely cause of the issue is: C. The battery is swollen. A swollen battery can exert pressure on the internal components of the laptop, causing the keyboard and trackpad to become harder to press or click. Swollen batteries are a common occurrence in older laptops and can be a safety hazard. It's important to address this issue promptly by replacing the swollen battery to prevent further damage to the laptop and ensure user safety.

   Source: Adapted from community discussion — Duke_CT

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4. Question 484 · 624 in bank

   Which of the following protocols can be used to securely access a remote network to troubleshoot various devices?

   • AFTP
   • BRDP
   • CSSH
   • DTFTP

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   Answer: C

   Explanation

   The protocol commonly used to securely access a remote network to troubleshoot various devices is: C. SSH (Secure Shell) SSH provides a secure, encrypted connection for remote access to network devices, servers, and other systems. It's widely used in network administration and troubleshooting tasks because it offers secure access to command-line interfaces and remote execution of commands on devices.

   Source: Adapted from community discussion — Duke_CT

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5. Question 485 · 624 in bank

   Which of the following describes the difference between a DNS server and a DHCP server?

   • ADNS is used for address translation, while DHCP is used for IP address assignment.
   • BDNS is used for routing, while DHCP is used for name resolution.
   • CDNS only assigns private IP addresses, while DHCP only assigns public IP addresses.
   • DDNS is used to route traffic between networks, while DHCP is used to allocate subnets.

   Show answer

   Answer: A

   Explanation

   The correct description of the difference between a DNS server and a DHCP server is: A. DNS is used for address translation, while DHCP is used for IP address assignment. Explanation: DNS (Domain Name System) is responsible for translating domain names into IP addresses. It resolves human-readable domain names like "example.com" into machine-readable IP addresses like "192.0.2.1". Essentially, it maps domain names to their corresponding IP addresses. DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses and other network configuration settings (like subnet mask, default gateway, DNS server addresses, etc.) to devices on a network. It dynamically provides IP addresses to devices, allowing them to communicate with other devices and services on the network. Therefore, while DNS translates domain names into IP addresses, DHCP handles the assignment of IP addresses to devices on a network. So, the correct answer is:

   Source: Adapted from community discussion — Duke_CT

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6. Question 486 · 624 in bank

   Which of the following is the maximum distance Cat 5, Cat 5e, Cat 6, and Cat 6a cables can be ran?

   • A295ft (90m)
   • B328ft (100m)
   • C361ft (110m)
   • D394ft (120m)

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   Answer: B

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7. Question 487 · 624 in bank

   Which of the following differentiates PAN from LAN?

   • APAN creates a wireless connection between smart devices.
   • BPAN creates a highly secure environment.
   • CPAN creates a faster connection.
   • DPAN needs regular maintenance to function properly.

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   Answer: A

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8. Question 488 · 624 in bank

   Select 2

   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? (Choose two.)

   • A15,000rpm HDD
   • BM.2 SSD
   • C10,000rpm HDD
   • DNVMe interface
   • ESATA interface
   • FmSATA interface

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   Answer: BD

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9. Question 489 · 624 in bank

   A user brings a laptop to work every morning, correctly seats it in the docking station, and then opens the laptop to begin work with no issues. After the user left the laptop at home during a two-week vacation, the laptop is no longer working. Upon returning to the office, the user reports that the keyboard and display are no longer working. Which of the following should the technician ask the user to do first?

   • AEnsure the docking station is plugged in.
   • BPress and release the laptop power button.
   • CPlug the laptop in and let it charge overnight.
   • DConnect the laptop directly to the network.

   Show answer

   Answer: A

   Explanation

   Given the scenario, the technician should first ask the user to: B. Press and release the laptop power button. This action will help determine if the laptop is powered off or in a sleep state. If it's in sleep mode, pressing the power button should wake it up. If it's powered off, pressing the power button should turn it on.

   Source: Adapted from community discussion — Duke_CT

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10. Question 490 · 624 in bank

    A laptop's external webcam software is running, but it shows no image or video. Which of the following should a technician perform FIRST?

    • AResearch new webcam firmware.
    • BRestart the computer and run system diagnostics.
    • CReseat the webcam.
    • DReinstall the webcam software and drivers.

    Show answer

    Answer: C

    Explanation

    It says its an EXTERNAL webcam. With an external webcam, it's usually plugged in via USB. So to reseat it you would unplug it and plug it back in.

    Source: Adapted from community discussion — CritterForDinner

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220-1101 practice, question 481. 624 questions available.