220-1201 CPU — All Questions With Answers

Question 1

A technician is tasked with selecting a CPU for a small form factor (SFF) office PC that must run quietly and efficiently. Which CPU characteristic is most important for this build?

Accepted Answer

Low thermal design power (TDP). In SFF builds, heat dissipation is limited, so a CPU with low TDP generates less heat, allowing for smaller, quieter cooling solutions. This tests understanding of how TDP impacts system design and noise levels.

Answer

Highest possible clock speed

Answer

Integrated GPU

Answer

Support for overclocking

Question 2

A user complains that their computer shuts down unexpectedly after a few minutes of gaming. You check the CPU temperature and find it is 105°C. What is the most likely cause?

Accepted Answer

Degraded thermal paste. High CPU temperature under load indicates a cooling problem. The most common cause is dried or improperly applied thermal paste between the CPU and heatsink. This prevents efficient heat transfer, leading to thermal throttling or shutdown.

Answer

Insufficient RAM

Answer

Failing power supply

Answer

Outdated BIOS

Question 3

A technician is troubleshooting a PC that fails to POST. The CPU fan spins, but there is no display output. The motherboard has a diagnostic LED that shows a CPU error. Which step should the technician take first to resolve the issue?

Accepted Answer

Reseat the CPU. A CPU error LED indicates a problem with the processor or its installation. The most common cause is improper seating or bent pins. Reseating the CPU is a logical first step before replacing components. This tests systematic troubleshooting methodology.

Answer

Replace the power supply

Answer

Update the BIOS using a USB flashback

Answer

Replace the CPU

Question 4

A customer says their PC randomly freezes and sometimes displays a blue screen error. You run diagnostics and find that the CPU passes all tests, but the system still crashes. Which component should you check next as a likely cause of CPU-related instability?

Accepted Answer

The CPU fan. Even if the CPU itself is functional, instability can arise from other factors. Overheating due to a failing fan can cause intermittent crashes. The CPU fan is critical for maintaining safe temperatures under load.

Answer

The hard drive

Answer

The power supply unit

Answer

The motherboard BIOS

Question 5

A technician is configuring a new PC for a user who runs multiple virtual machines. The motherboard has an AM5 socket. Which CPU feature is most important for this workload?

Accepted Answer

High core and thread count. Virtual machines benefit from many cores and threads because each VM can be assigned to a separate core. AMD AM5 CPUs offer high core counts, making them ideal for virtualization. This tests understanding of how CPU architecture affects specific tasks.

Answer

High clock speed

Answer

Large L3 cache

Answer

Integrated graphics

Question 6

A user reports that their computer is making a loud grinding noise and then shuts down after a few minutes. The CPU temperature is normal at idle. What is the most likely cause?

Accepted Answer

CPU fan bearing failure. A grinding noise typically indicates a mechanical bearing failure in a fan. The CPU fan may still spin but fail under load, causing overheating and shutdown. This scenario tests the ability to correlate auditory symptoms with hardware failure.

Answer

Hard drive failure

Answer

Power supply fan failure

Answer

Loose CPU cooler

Question 7

A technician is building a new workstation for video editing. The motherboard supports LGA 1700 socket CPUs. Which of the following CPUs is compatible with this socket?

Accepted Answer

Intel Core i5-13600K. This question tests knowledge of CPU socket compatibility. LGA 1700 is used by Intel 12th, 13th, and 14th generation processors. Choosing the correct socket ensures the CPU physically fits and operates.

Answer

AMD Ryzen 7 5800X

Answer

Intel Core i7-9700K

Answer

AMD Threadripper 3970X

Question 8

A technician is upgrading a workstation and notices that the new CPU is not listed in the motherboard's supported CPU list. The motherboard uses an LGA 1200 socket. What is the most likely issue?

Accepted Answer

The motherboard's chipset does not support that CPU generation. CPU compatibility depends on both socket and chipset. Even with the correct socket, the chipset may not support the CPU's power delivery or microcode. This question tests deeper knowledge of motherboard-CPU compatibility beyond just the socket.

Answer

The CPU is physically too large for the socket

Answer

The CPU requires more power than the motherboard can provide

Answer

The CPU is a server-grade processor not meant for workstations

Question 9

A customer reports that their desktop PC is running very slowly, especially when opening multiple applications. The system has 8 GB of RAM and a 1 TB HDD. You check Task Manager and see that the CPU is consistently at 100% usage even with only a few apps open. Which CPU characteristic is most likely causing this bottleneck?

Accepted Answer

Clock speed. This scenario tests understanding of how CPU clock speed affects multitasking performance. A low clock speed means the processor cannot execute instructions quickly enough, leading to high usage and sluggishness. Upgrading to a CPU with a higher clock speed would directly address the bottleneck.

Answer

Number of cores

Answer

Cache size

Answer

Thermal design power (TDP)

Question 10

A technician is upgrading a server CPU and needs to select a processor that supports ECC memory. Which CPU feature is required for ECC support?

Accepted Answer

Memory controller. ECC memory requires support from the CPU's memory controller. Not all CPUs support ECC; it is typically found in workstation or server-class processors. This question tests knowledge of CPU features beyond just speed and cores.

Answer

Integrated GPU

Answer

Hyper-Threading

Answer

Overclocking capability

Question 11

A technician is troubleshooting a workstation that fails to boot. The motherboard has a POST code display showing '00'. The CPU fan spins, but there is no display output. Which component is most likely faulty?

Accepted Answer

The CPU. POST code '00' typically indicates a CPU-related issue, such as a faulty CPU, incorrect installation, or bent pins. Since the fan spins, power is reaching the board, but the CPU is not initializing. The technician should reseat the CPU and check for damage.

Answer

The power supply unit

Answer

The RAM modules

Answer

The graphics card

Question 12

A user complains that their PC is running slowly and the fan is constantly running at high speed. Task Manager shows the CPU is consistently at 100% usage even when idle. Which of the following is the most likely cause?

Accepted Answer

A background process is consuming CPU cycles, such as a mining script or system update. High CPU usage at idle is often due to background processes, such as malware or a runaway application. The constant high fan speed indicates the CPU is generating excess heat from this activity.

Answer

The CPU is overheating due to dried thermal paste

Answer

The power supply is failing and cannot provide enough power

Answer

The CPU has been overclocked beyond its limits

Question 13

A user reports that their computer randomly restarts when playing games. The technician suspects the CPU is overheating. Which tool should the technician use to monitor the CPU temperature under load?

Accepted Answer

A third-party utility like HWMonitor. To diagnose overheating, a technician needs real-time temperature monitoring. A tool like HWMonitor or Core Temp provides accurate CPU temperature readings. BIOS/UEFI shows idle temps only, and Event Viewer logs crashes but not temperatures.

Answer

Windows Task Manager

Answer

The BIOS/UEFI hardware monitor

Answer

Windows Event Viewer

Question 14

A technician is upgrading a workstation from a dual-core CPU to a quad-core CPU. After installation, the system boots but only shows two cores in the operating system. The technician has already verified the CPU is properly seated. What is the most likely cause?

Accepted Answer

The motherboard BIOS is outdated and does not fully support the new CPU. If the OS only detects half the cores, the CPU might be faulty, but a more common cause is that the motherboard's BIOS needs an update to support the new CPU's full feature set. Older BIOS versions may not recognize all cores.

Answer

The CPU is counterfeit and only has two functional cores

Answer

The operating system is limited to two cores due to licensing

Answer

The CPU cooler is too tight, causing physical damage to the CPU

Question 15

During a routine hardware upgrade, a technician installs a new CPU into a workstation. After powering on, the system emits a series of long beeps and the screen remains blank. What is the most likely cause?

Accepted Answer

The RAM is not seated properly. POST beep codes are used to indicate hardware errors. A series of long beeps typically points to a memory issue, not a CPU problem. The technician should reseat the RAM modules to resolve this.

Answer

The CPU is not compatible with the motherboard socket

Answer

The CPU is installed backwards

Answer

The CPU fan is not connected to the motherboard

Question 16

A technician is building a new gaming PC and wants to ensure the CPU can handle heavy multitasking and overclocking. The motherboard supports both Intel and AMD CPUs, but the technician is unsure which CPU features to prioritize. Which CPU characteristic is most important for overclocking stability?

Accepted Answer

A high-quality aftermarket CPU cooler. Overclocking increases the CPU's clock speed beyond stock settings, which generates more heat. A robust cooling solution is essential to maintain stability and prevent thermal throttling or damage. Other features like core count or cache are secondary for overclocking.

Answer

A high number of cores (e.g., 12 cores)

Answer

A large L3 cache (e.g., 32 MB)

Answer

An unlocked multiplier (e.g., Intel K-series or AMD Ryzen)

Question 17

A technician is replacing a CPU in a server that uses a LGA 1151 socket. After installing the new CPU and applying thermal paste, the system fails to post. The technician notices the CPU cooler is not making full contact with the CPU. What is the most likely consequence of this poor contact?

Accepted Answer

The CPU will overheat and the system will shut down to prevent damage. Poor contact between the CPU and cooler prevents effective heat dissipation. The CPU will quickly overheat, triggering thermal protection that shuts down the system to prevent damage. This is a common issue after improper cooler installation.

Answer

The CPU will operate at a lower clock speed but still function

Answer

The system will boot but display a warning about high CPU temperature

Answer

The CPU will be permanently damaged immediately

Question 18

A customer reports that their desktop computer intermittently freezes and emits a high-pitched whine. The issue occurs more frequently under heavy load, such as when rendering video. Which CPU-related feature is most likely causing this symptom?

Accepted Answer

Coil whine from the voltage regulator modules. The high-pitched whine from a CPU under load is typically coil whine, caused by electrical vibrations in the voltage regulator modules (VRMs) or inductors. This is not a sign of failure but can be annoying. The correct answer identifies the source as power delivery components, not the CPU itself.

Answer

CPU throttling due to overheating

Answer

A failing CPU fan bearing

Answer

Incorrect CPU multiplier setting in BIOS

Question 19

A technician is troubleshooting a system that experiences random lockups and blue screens. The technician suspects a CPU issue but has already run a stress test without errors. Which diagnostic step should the technician perform next to isolate the problem?

Accepted Answer

Run a memory diagnostic tool like MemTest86. Random lockups and blue screens can also be caused by memory errors. Running a memory diagnostic tool like MemTest86 will test the RAM for faults, which can produce symptoms similar to a failing CPU. This helps rule out memory before replacing the CPU.

Answer

Replace the CPU with a known good one

Answer

Update the motherboard BIOS to the latest version

Answer

Check the CPU voltage in BIOS and increase it slightly

Question 20

A technician is configuring a server that requires maximum memory bandwidth for virtual machines. The motherboard has four memory slots and supports dual-channel architecture. The technician installs two 16 GB DIMMs. Which configuration will provide the best performance?

Accepted Answer

Install both DIMMs in slots 1 and 3 (different channels). Dual-channel memory architecture requires matched pairs of DIMMs installed in specific slots (usually slots 1 and 3 or 2 and 4) to operate in dual-channel mode. Installing them in the same channel (e.g., slots 1 and 2) forces single-channel mode, halving memory bandwidth.

Answer

Install both DIMMs in slots 1 and 2 (same channel)

Answer

Install one DIMM in slot 1 and leave the other empty

Answer

Install both DIMMs in slots 2 and 3 (adjacent slots)

220-1201 CPU — All Questions With Answers

A technician is tasked with selecting a CPU for a small form factor (SFF) office PC that must run quietly and efficiently. Which CPU characteristic is most important for this build?

A user complains that their computer shuts down unexpectedly after a few minutes of gaming. You check the CPU temperature and find it is 105°C. What is the most likely cause?

A technician is troubleshooting a PC that fails to POST. The CPU fan spins, but there is no display output. The motherboard has a diagnostic LED that shows a CPU error. Which step should the technician take first to resolve the issue?

A customer says their PC randomly freezes and sometimes displays a blue screen error. You run diagnostics and find that the CPU passes all tests, but the system still crashes. Which component should you check next as a likely cause of CPU-related instability?

A technician is configuring a new PC for a user who runs multiple virtual machines. The motherboard has an AM5 socket. Which CPU feature is most important for this workload?

A user reports that their computer is making a loud grinding noise and then shuts down after a few minutes. The CPU temperature is normal at idle. What is the most likely cause?

A technician is building a new workstation for video editing. The motherboard supports LGA 1700 socket CPUs. Which of the following CPUs is compatible with this socket?

A technician is upgrading a workstation and notices that the new CPU is not listed in the motherboard's supported CPU list. The motherboard uses an LGA 1200 socket. What is the most likely issue?

A technician is upgrading a server CPU and needs to select a processor that supports ECC memory. Which CPU feature is required for ECC support?

A technician is troubleshooting a workstation that fails to boot. The motherboard has a POST code display showing '00'. The CPU fan spins, but there is no display output. Which component is most likely faulty?

A user complains that their PC is running slowly and the fan is constantly running at high speed. Task Manager shows the CPU is consistently at 100% usage even when idle. Which of the following is the most likely cause?

A user reports that their computer randomly restarts when playing games. The technician suspects the CPU is overheating. Which tool should the technician use to monitor the CPU temperature under load?

A technician is upgrading a workstation from a dual-core CPU to a quad-core CPU. After installation, the system boots but only shows two cores in the operating system. The technician has already verified the CPU is properly seated. What is the most likely cause?

During a routine hardware upgrade, a technician installs a new CPU into a workstation. After powering on, the system emits a series of long beeps and the screen remains blank. What is the most likely cause?

A technician is replacing a CPU in a server that uses a LGA 1151 socket. After installing the new CPU and applying thermal paste, the system fails to post. The technician notices the CPU cooler is not making full contact with the CPU. What is the most likely consequence of this poor contact?

A customer reports that their desktop computer intermittently freezes and emits a high-pitched whine. The issue occurs more frequently under heavy load, such as when rendering video. Which CPU-related feature is most likely causing this symptom?

A technician is troubleshooting a system that experiences random lockups and blue screens. The technician suspects a CPU issue but has already run a stress test without errors. Which diagnostic step should the technician perform next to isolate the problem?

A technician is configuring a server that requires maximum memory bandwidth for virtual machines. The motherboard has four memory slots and supports dual-channel architecture. The technician installs two 16 GB DIMMs. Which configuration will provide the best performance?

A technician is building a new workstation for a graphic designer. The user needs fast single-threaded performance for Adobe Photoshop. Which CPU characteristic should the technician prioritize?

A user reports that their computer intermittently freezes for a few seconds during normal use. The technician checks Event Viewer and finds 'WHEA-Logger' errors related to the CPU. What is the most likely cause?

A user complains that their computer is running slowly, especially when opening multiple browser tabs. Task Manager shows the CPU is at 100% usage constantly, even when idle. Which of the following is the most likely cause?

A technician is troubleshooting a system that randomly restarts under load. The CPU temperature never exceeds 75°C, and the power supply is rated at 750W. Which of the following should the technician check next?

A technician is selecting a CPU for a compact home theater PC (HTPC) that will be passively cooled. Which CPU characteristic is most critical to ensure reliable operation without a fan?

A technician is upgrading a server CPU to improve multi-threaded performance for a virtualization host. The current CPU has 8 cores and 16 threads. Which of the following specifications is most important to consider for compatibility?

A technician is diagnosing a system that fails to boot after a CPU upgrade. The old CPU worked fine. The new CPU is installed correctly, but the system beeps repeatedly (1 long, 3 short). Which of the following is the most likely issue?

During a motherboard replacement, a technician installs a new CPU but the system fails to POST. The CPU fan spins, but the screen remains blank. Which of the following should the technician check first?

A technician needs to install a CPU that supports both DDR4 and DDR5 memory on a new motherboard. The motherboard manual lists support for only DDR5. Which of the following is the best course of action?

A customer reports that their desktop computer randomly shuts down when they run video editing software. The system has a high-end GPU and 32 GB of RAM. During troubleshooting, you notice the CPU temperature quickly rises to 95°C under load. Which of the following is the most likely cause?

220-1201 CPU — All Questions With Answers

A technician is tasked with selecting a CPU for a small form factor (SFF) office PC that must run quietly and efficiently. Which CPU characteristic is most important for this build?

A user complains that their computer shuts down unexpectedly after a few minutes of gaming. You check the CPU temperature and find it is 105°C. What is the most likely cause?

A technician is troubleshooting a PC that fails to POST. The CPU fan spins, but there is no display output. The motherboard has a diagnostic LED that shows a CPU error. Which step should the technician take first to resolve the issue?

A customer says their PC randomly freezes and sometimes displays a blue screen error. You run diagnostics and find that the CPU passes all tests, but the system still crashes. Which component should you check next as a likely cause of CPU-related instability?

A technician is configuring a new PC for a user who runs multiple virtual machines. The motherboard has an AM5 socket. Which CPU feature is most important for this workload?

A user reports that their computer is making a loud grinding noise and then shuts down after a few minutes. The CPU temperature is normal at idle. What is the most likely cause?

A technician is building a new workstation for video editing. The motherboard supports LGA 1700 socket CPUs. Which of the following CPUs is compatible with this socket?

A technician is upgrading a workstation and notices that the new CPU is not listed in the motherboard's supported CPU list. The motherboard uses an LGA 1200 socket. What is the most likely issue?

A technician is upgrading a server CPU and needs to select a processor that supports ECC memory. Which CPU feature is required for ECC support?

A technician is troubleshooting a workstation that fails to boot. The motherboard has a POST code display showing '00'. The CPU fan spins, but there is no display output. Which component is most likely faulty?

A user complains that their PC is running slowly and the fan is constantly running at high speed. Task Manager shows the CPU is consistently at 100% usage even when idle. Which of the following is the most likely cause?

A user reports that their computer randomly restarts when playing games. The technician suspects the CPU is overheating. Which tool should the technician use to monitor the CPU temperature under load?

A technician is upgrading a workstation from a dual-core CPU to a quad-core CPU. After installation, the system boots but only shows two cores in the operating system. The technician has already verified the CPU is properly seated. What is the most likely cause?

During a routine hardware upgrade, a technician installs a new CPU into a workstation. After powering on, the system emits a series of long beeps and the screen remains blank. What is the most likely cause?

A technician is replacing a CPU in a server that uses a LGA 1151 socket. After installing the new CPU and applying thermal paste, the system fails to post. The technician notices the CPU cooler is not making full contact with the CPU. What is the most likely consequence of this poor contact?

A customer reports that their desktop computer intermittently freezes and emits a high-pitched whine. The issue occurs more frequently under heavy load, such as when rendering video. Which CPU-related feature is most likely causing this symptom?

A technician is troubleshooting a system that experiences random lockups and blue screens. The technician suspects a CPU issue but has already run a stress test without errors. Which diagnostic step should the technician perform next to isolate the problem?

A technician is configuring a server that requires maximum memory bandwidth for virtual machines. The motherboard has four memory slots and supports dual-channel architecture. The technician installs two 16 GB DIMMs. Which configuration will provide the best performance?

A technician is building a new workstation for a graphic designer. The user needs fast single-threaded performance for Adobe Photoshop. Which CPU characteristic should the technician prioritize?

A user reports that their computer intermittently freezes for a few seconds during normal use. The technician checks Event Viewer and finds 'WHEA-Logger' errors related to the CPU. What is the most likely cause?

A user complains that their computer is running slowly, especially when opening multiple browser tabs. Task Manager shows the CPU is at 100% usage constantly, even when idle. Which of the following is the most likely cause?

A technician is troubleshooting a system that randomly restarts under load. The CPU temperature never exceeds 75°C, and the power supply is rated at 750W. Which of the following should the technician check next?

A technician is selecting a CPU for a compact home theater PC (HTPC) that will be passively cooled. Which CPU characteristic is most critical to ensure reliable operation without a fan?

A technician is upgrading a server CPU to improve multi-threaded performance for a virtualization host. The current CPU has 8 cores and 16 threads. Which of the following specifications is most important to consider for compatibility?

A technician is diagnosing a system that fails to boot after a CPU upgrade. The old CPU worked fine. The new CPU is installed correctly, but the system beeps repeatedly (1 long, 3 short). Which of the following is the most likely issue?

During a motherboard replacement, a technician installs a new CPU but the system fails to POST. The CPU fan spins, but the screen remains blank. Which of the following should the technician check first?

A technician needs to install a CPU that supports both DDR4 and DDR5 memory on a new motherboard. The motherboard manual lists support for only DDR5. Which of the following is the best course of action?

A customer reports that their desktop computer randomly shuts down when they run video editing software. The system has a high-end GPU and 32 GB of RAM. During troubleshooting, you notice the CPU temperature quickly rises to 95°C under load. Which of the following is the most likely cause?