ICT Computer Hardware and Peripherals 2 — Questions and Answers
Question 1: Which type of storage interface offers the fastest data transfer speeds for modern SSDs?
- SATA III
- NVMe (PCIe) (Correct answer)
- USB 3.0
- eSATA
Correct answer: NVMe (PCIe)
NVMe drives use the PCIe bus and can reach sequential read speeds over 7,000 MB/s, far exceeding SATA III's 600 MB/s ceiling.
Question 2: What does the term 'TDP' refer to in the context of CPUs and GPUs?
- Total Data Processing
- Thermal Design Power (Correct answer)
- Transfer Data Protocol
- Transistor Density Parameter
Correct answer: Thermal Design Power
TDP (Thermal Design Power) is the maximum amount of heat a cooling solution must dissipate to keep the component running within safe temperatures.
Question 3: A user connects an external monitor but gets no signal. Which component is MOST likely responsible if the integrated GPU works fine?
- RAM stick
- Dedicated GPU (Correct answer)
- CPU cooler
- Power supply fan
Correct answer: Dedicated GPU
If the integrated GPU outputs video but the discrete GPU does not, the dedicated GPU (or its driver/power connectors) is the likely failure point.
Question 4: Which peripheral interface standard supports both data transfer and video output through the same connector?
- PS/2
- USB Type-A
- Thunderbolt 4 (Correct answer)
- RS-232
Correct answer: Thunderbolt 4
Thunderbolt 4 uses the USB-C connector and can simultaneously carry PCIe data, DisplayPort video, and up to 100W of power.
Question 5: What is the primary function of a heat sink in a computer system?
- Boost clock speed
- Dissipate heat away from the CPU (Correct answer)
- Regulate voltage supply
- Filter electrical noise
Correct answer: Dissipate heat away from the CPU
A heat sink uses metal fins and conduction to transfer heat from a processor to the surrounding air, preventing thermal throttling.
Question 6: Which of the following best describes a KVM switch?
- A keyboard shortcut manager
- A device allowing one set of peripherals to control multiple computers (Correct answer)
- A type of virtual machine software
- A key-value memory module
Correct answer: A device allowing one set of peripherals to control multiple computers
A KVM (Keyboard, Video, Mouse) switch lets a single keyboard, monitor, and mouse control two or more computers by switching input/output between them.
Question 7: In optical storage, what laser color is used by Blu-ray discs compared to DVDs?
- Red (650 nm)
- Infrared (780 nm)
- Blue-violet (405 nm) (Correct answer)
- Green (532 nm)
Correct answer: Blue-violet (405 nm)
Blu-ray uses a 405 nm blue-violet laser with a smaller spot size, allowing much higher data density than the 650 nm red laser used by DVDs.
ICT Computer Hardware and Peripherals 2
Which type of storage interface offers the fastest data transfer speeds for modern SSDs?