Question # 1 Which of the following DNS records is used to point to a mail server? A. TXTB. AAAC. AD. MX
Click for Answer
D. MX
Answer Description Explanation:
An MX (Mail Exchange) record in DNS specifies the mail server responsible for accepting email messages on behalf of a domain. It is a vital component of the email delivery process, directing email to the correct server based on the domain part of the email address. Without properly configured MX records, a domain's email system cannot function correctly.
Question # 2 Which of the following protocols can be used to securely access a remote network to troubleshoot various devices? A. FTPB. RDPC. SSHD. TFTP
Click for Answer
C. SSHQuestion # 3 A user reports that a laser printer's toner does not stick to the paper. The user has tried multiple brands of paper and is unable to print legible documents. Which of the following should be replaced to ensure proper printouts? A. Fuser unitB. Toner distributionsensorC. Paper charge transformerD. Toner cartridge
Click for Answer
A. Fuser unit
Answer Description Explanation: In laser printing, the fuser unit is responsible for bonding the toner to the paper using heat and pressure. If the toner is not sticking to the paper, resulting in illegible documents despite trying different brands of paper, it indicates a problem with the fuser unit. It might not be reaching the necessary temperature to melt the toner properly, necessitating its replacement to ensure proper printouts.
Question # 4 A technician is upgrading the power supply of a workstation that is running multiple GPUs in an SLI configuration. Which of the following cables is
needed to ensure the power supply can support the workstation?
A. 8-pin PCleB. 4-pin MolexC. 4+4-pin ATX12VD. 8-pin ATX12V
Click for Answer
A. 8-pin PCle
Answer Description Explanation:
The 8-pin PCle power cable is designed to supply power to a graphics card that requires more power than the PCle slot can provide. A workstation that is running multiple GPUs in an SLI configuration would need this cable to ensure adequate power delivery and stability. The other cables are not suitable for this purpose, as they are either meant for the motherboard (4+4-pin ATX12V and 8-pin ATX12V) or for older devices (4-pin Molex)
Question # 5 A user reports a cell phone is getting hot. Which of the following are MOST likely to be
possible causes? (Select THREE). A. Using the device as a Wi-Fi hotspot
B. A cracked screen
C. A failing battery
D. Less than 15% free storage space on the phone
E. Privileged control
Click for Answer
A. Using the device as a Wi-Fi hotspot
C. A failing battery
Answer Description Explanation : Using the device as a Wi-Fi hotspot, a failing battery, and too many open
applications are the most likely causes of the cell phone getting hot. These actions require
the phone to use more power and processing, causing it to heat up.
Question # 6 Which of the following environments can be set up to keep any device from communicating with a virtual machine over the network? A. DevelopmentB. TestC. SandboxD. Cross-platform
Click for Answer
C. Sandbox
Answer Description Explanation: A sandbox environment is designed to isolate and contain software or programs, preventing them from interacting with other parts of the system or network. This isolation can be used to safely run untested or untrusted programs or code without risking the integrity of the host system or network. Setting up a virtual machine within a sandbox environment ensures that the VM has no communication with other devices over the network, providing a controlled and secure environment for testing or development purposes.
Question # 7 Which of the following port numbers is used for a file transfer? A. 21B. 53C. 68D. 389
Click for Answer
A. 21Question # 8 The SSD in a user's computer failed. A technician is replacing the SSD and would like to mitigate future failures given the user often runs many programs. Which of the following is the best solution? A. Increase the amount of virtual memory in the OS.B. Turn on Windows BitLocker.C. Virtualize the user's programs.D. Upgrade the amount of RAM in the computer.
Click for Answer
D. Upgrade the amount of RAM in the computer.
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