With three hard disks, which RAID configuration offers fault tolerance while maximizing storage?
A) RAID 0
B) RAID 1
C) RAID 5
D) RAID 10
Correct Answer: C) RAID 5 Explanation: RAID 5 provides fault tolerance and maximizes storage by using parity.
Question 42
A server uses DDR4 ECC RDIMMs. Can DDR4 ECC UDIMMs be used for an upgrade?
A) Yes
B) No
Correct Answer: B) No Explanation: RDIMMs and UDIMMs are not interchangeable; the system requires RDIMMs.
Question 43
How can cache improve CPU performance?
A) By allowing the CPU to access data more quickly than RAM
B) By freeing up memory for other processes
C) By increasing the CPU clock speed
D) By storing frequently accessed disk data
Correct Answer: A) By allowing the CPU to access data more quickly than RAM Explanation: Cache memory is much faster than RAM and is used to store frequently accessed data for the CPU.
Question 44
A workstation with a multi-socket motherboard has a Xeon E3-1220 CPU installed. Can a Xeon E3-1231 CPU be used for symmetric multiprocessing?
A) Yes
B) No
Correct Answer: B) No Explanation: Symmetric multiprocessing requires identical CPUs.
Question 45
Can any x64-compatible CPU with sufficient clock speed be used to run multiple virtual machines (VMs)?
A) Yes
B) No
Correct Answer: B) No Explanation: The CPU must support virtualization extensions to run VMs efficiently.
Question 46
When installing a PGA CPU, what must be checked?
A) Pin alignment with the socket
B) Voltage settings
C) Heat sink compatibility
D) Firmware version
Correct Answer: A) Pin alignment with the socket Explanation: Proper pin alignment is crucial to avoid damaging the CPU or motherboard.
Question 47
A CAD workstation reports a “RAID utility volume degraded” notification. What should be done to restore the array
A) Reboot the system
B) Add a new disk
C) Rebuild the array
D) Reinstall the RAID software
Correct Answer: B) Add a new disk Explanation: A degraded RAID volume means one disk has failed, and adding a new disk will allow the array to rebuild.
Question 48
A user reports a loud clicking noise when trying to save a file. What should be the technician’s first troubleshooting step?
A) Replace the hard drive
B) Run a disk check
C) Check the power and data cables
D) Replace the motherboard
Correct Answer: C) Check the power and data cables Explanation: Loose or faulty cables can cause clicking noises during disk access.
Question 49
After servicing a computer, the technician finds it won’t power on. What’s the most likely cause?
A) The PSU is faulty
B) Power connectors are not reconnected
C) The motherboard is damaged
D) The CPU is faulty
Correct Answer: B) Power connectors are not reconnected Explanation: The most common cause of power issues after servicing is disconnected power cables.
Question 50
A user reports noises from their hard disk. Should it be replaced?
A) Yes
B) No
Correct Answer: B) No Explanation: Not all hard disk noises indicate failure, and further investigation is required to determine the cause.