CompTIA A+ Core 1 > ✅ Module 3.4 > Flashcards

✅ Module 3.4 Flashcards

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1
Q

Two most common CPU sizes?

A
  1. 32-bit
  2. 64-bit
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2
Q

Must a hardware driver match the CPU size?

A

Yes.
A 64-bit CPU requires a 64-bit hardware drive and a 32-bit CPU requires a 32-bit CPU.

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3
Q

Define facsimile.

A

An exact copy, especially of written or printed material.

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4
Q

You install a new CPU. The system beeps and shows no display. What is likely the fix for this scenario?

A

Reinstall the old CPU and flash the UEFI.

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5
Q

Why reinstall old CPU before BIOS update?

A

System must POST to flash firmware

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6
Q

When should you replace a motherboard on Computer?

A

Only after confirming it is faulty

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7
Q

Key advantage of ARM processors in mobile devices?

A

Higher performance per watt

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8
Q

Why are ARM CPUs ideal for mobile devices?

A

Better battery life and lower power consumption

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9
Q

ARM vs x86: which is more power efficient?

A

ARM

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10
Q

What architecture does ARM use?

A

RISC

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11
Q

What architecture does x86/x64 use?

A

CISC

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12
Q

Does ARM require fewer software modifications than x86?

A

No—software often must be recompiled or emulated

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13
Q

Is ARM faster than x86 for raw performance?

A

No—focus is efficiency

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14
Q

Does ARM integrate fewer components than x86?

A

No—ARM SoCs integrate MORE components

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15
Q

What design helps ARM improve battery life?

A

Performance-per-watt efficiency

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16
Q

Which CPU type is best for fanless mobile devices?

A

ARM

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17
Q

Computer boots then shuts down shortly after CPU upgrade—most likely cause?

A

CPU overheating

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18
Q

After CPU upgrade system shuts down quickly—first thing to check?

A

CPU fan/heatsink connection

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19
Q

What happens if a CPU fan is not running?

A

System overheats and shuts down automatically

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20
Q

Will a bad or unsupported CPU usually boot into Windows?

A

No

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21
Q

If BIOS does not support the CPU will the system boot during POST?

A

Nope.

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22
Q

Is a virus a likely cause right after a hardware upgrade?

A

No

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23
Q

What safety feature causes automatic shutdown during overheating?

A

Thermal protection

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24
Q

What is a common mistake after installing a new CPU?

A

Forgetting to connect the CPU fan power cable

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25
Best practice. After installing a new CPU and heatsink, what two things should I check in BIOS?
Temperatures Fan operation.
26
When should you verify CPU socket compatibility?
Before installing the CPU
27
When should you verify motherboard CPU speed support?
Before installing the CPU
28
When should the CPU fan power be connected?
During heatsink/fan installation
29
Why update UEFI after CPU installation?
Ensure full CPU support and stability
30
What is required to update UEFI/BIOS? Name two.
CPU Memory
31
Is connecting the fan power a best practice step?
No—it is part of installation
32
LGA stands for?
Land Grid Array.
33
PGA stands for?
Pin Grid Array.
34
Where should high-performance data be stored?
On the SSD.
35
Why store high-performance data on an SSD?
SSDs provide faster read/write speeds and lower latency.
36
Where should heavily used but non-performance-critical data be stored?
On the HDD.
37
Why store general heavily used data on the HDD?
To preserve SSD space for performance-critical tasks.
38
Which drive should typically hold the operating system? If I have a PC with a HDD and an SSD, on which drive should the OS be installed?
SSD.
39
Which drive offers larger storage capacity at lower cost per GB, SSD or HDD?
HDD.
40
Which drive is faster: SSD or HDD?
SSD.
41
Should important data on the SSD be backed up?
Yes
42
Why not store everything on the SSD?
SSDs cost more per GB and should prioritize speed-critical data.
43
Which Intel feature allows one physical core to run two threads?
Hyper-threading.
44
What does Hyper-threading do?
Allows a single core to handle two threads simultaneously.
45
Is Hyper-threading the same as adding more physical cores?
No.
46
Does dual-core mean one core running two threads?
No
47
What is dual-core?
A CPU with two physical processing cores.
48
What does overclocking do?
Increases the CPU clock speed.
49
Does overclocking increase the number of threads?
No.
50
What is multiprocessing?
Using multiple CPUs in a system.
51
Which feature creates logical cores from one physical core?
Hyper-threading.
52
If a CPU shows 4 cores and 8 threads, what technology is being used?
A system with four physical cores and each core is runs as either Hyper-thread (Intel) or SMT - Simultaneous Multi-threading (AMD).
53
Should memory modules in a channel set have the same capacity?
Yes.
54
Should memory modules in a channel set have the same speed?
Yes.
55
Can you mix different capacity modules within a channel set?
No (for proper channel operation).
56
Do channel sets require identical modules for best performance?
Yes
57
Do RAM modules in a channel set need to be installed next to each other?
No
58
Are channel memory slots assigned in BIOS/UEFI?
No.
59
Where do you determine correct RAM slot placement?
Motherboard documentation.
60
If modules are mismatched what happens?
1. The system will downclock to the slowest modules's speed. 2. Dual-channel be be disabled 3. Flex Mode may activate. (Intel systems)
61
What should you use before removing a hot-swappable external drive?
Safely Remove Hardware.
62
Can hot-swappable drives be removed without shutting down the computer?
Yes.
63
Should you remove a hot-swappable drive without safely ejecting it?
No.
64
Why use Safely Remove Hardware?
To prevent data corruption.
65
Is powering off the computer required for hot-swappable drives?
No.
66
What does hot-swappable mean?
A device can be removed without shutting down the system.
67
Does Disk Management need to be used before ejecting an external drive?
No.
68
What happens if you remove a drive without safe removal?
Risk of data corruption.
69
What is the BEST method for replacing a drive in an external docking station?
Use Safely Remove Hardware
70
Which liquid cooling component transfers heat from the CPU to the coolant?
Water block.
71
What does the water block attach to?
The CPU.
72
What is the function of the water block?
Transfers heat from CPU to liquid coolant.
73
What does the radiator do in a liquid cooling system?
Dissipates heat from the liquid to the air.
74
What does the pump do in a liquid cooling system?
Circulates the coolant.
75
Which component actually cools the liquid after it absorbs heat?
Radiator.
76
Does the radiator directly touch the CPU?
No.
77
In liquid cooling what component first receives heat from the CPU?
Water block
78
DDR 6400 (OC) What does 6400 represent?
Data transfer rate of the RAM. 6400 MT/2 So 3200MHz (actual clock speed).
CompTIA A+ Core 1
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