Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
A desktop computer works normally for a few minutes after startup, but the CPU temperature rises rapidly and the system shuts down automatically under load. Which component should be examined FIRST?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Rapid CPU temperature rise followed by protective shutdown strongly indicates inadequate processor cooling.
• The heat sink and CPU fan remove heat generated by the processor; incorrect mounting, fan failure or poor thermal contact can cause overheating.
• A NIC, SATA data cable or sound card would not normally produce this specific CPU-temperature symptom.
• The heat sink and CPU fan remove heat generated by the processor; incorrect mounting, fan failure or poor thermal contact can cause overheating.
• A NIC, SATA data cable or sound card would not normally produce this specific CPU-temperature symptom.
వివరణ:
Question 2
ప్రశ్న 2
A processor specification lists a clock frequency of 3.6 GHz. What does the unit GHz represent in this context?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• One gigahertz represents one billion cycles per second.
• A 3.6 GHz clock therefore corresponds nominally to 3.6 billion clock cycles per second.
• Clock frequency alone does not determine total CPU performance because architecture, cores, cache and other factors also influence performance.
• A 3.6 GHz clock therefore corresponds nominally to 3.6 billion clock cycles per second.
• Clock frequency alone does not determine total CPU performance because architecture, cores, cache and other factors also influence performance.
వివరణ:
Question 3
ప్రశ్న 3
Which motherboard component or controller logic primarily manages many platform I/O functions such as USB, SATA and other peripheral connectivity in a modern PC architecture?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The motherboard chipset, commonly represented by a Platform Controller Hub in many modern architectures, manages significant platform I/O functions.
• Functions may include SATA, USB and other peripheral connectivity depending on the platform design.
• A DIMM stores working data, a heat sink provides cooling and the CMOS/RTC battery supplies backup power for clock-related functions.
• Functions may include SATA, USB and other peripheral connectivity depending on the platform design.
• A DIMM stores working data, a heat sink provides cooling and the CMOS/RTC battery supplies backup power for clock-related functions.
వివరణ:
Question 4
ప్రశ్న 4
Which sequence most accurately represents the basic CPU instruction cycle?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The processor first fetches an instruction from memory.
• It then decodes the instruction, executes the required operation and stores or writes back the result where necessary.
• The simplified sequence Fetch → Decode → Execute → Store/Write-back is therefore the appropriate order.
• It then decodes the instruction, executes the required operation and stores or writes back the result where necessary.
• The simplified sequence Fetch → Decode → Execute → Store/Write-back is therefore the appropriate order.
వివరణ:
Question 5
ప్రశ్న 5
A user wants to replace a desktop CPU with another processor. Consider the following factors:
1. CPU socket compatibility
2. Motherboard chipset and firmware support
3. Power and cooling requirements of the new processor
4. Identical number of visible contacts alone guarantees compatibility
Which of the above should actually be considered?
1. CPU socket compatibility
2. Motherboard chipset and firmware support
3. Power and cooling requirements of the new processor
4. Identical number of visible contacts alone guarantees compatibility
Which of the above should actually be considered?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Socket compatibility must be checked because processors are designed for specific socket families.
• Motherboard chipset, BIOS/UEFI support and processor power or cooling requirements can also determine whether an upgrade will work.
• Merely having a similar or identical number of contacts does not guarantee electrical, firmware or architectural compatibility.
• Motherboard chipset, BIOS/UEFI support and processor power or cooling requirements can also determine whether an upgrade will work.
• Merely having a similar or identical number of contacts does not guarantee electrical, firmware or architectural compatibility.
వివరణ:
Question 6
ప్రశ్న 6
Which expansion card is specifically intended to provide enhanced audio processing and audio input/output capability to a computer?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A sound card provides audio-related functions such as playback, recording and audio signal processing.
• It may provide microphone, line-in, speaker or other audio interfaces depending on the model.
• Network, graphics and storage-controller cards perform different specialised functions.
• It may provide microphone, line-in, speaker or other audio interfaces depending on the model.
• Network, graphics and storage-controller cards perform different specialised functions.
వివరణ:
Question 7
ప్రశ్న 7
An expansion card installed in a PC has an RJ-45 Ethernet connector on its rear bracket. What is the most likely function of the card?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An RJ-45 connector is commonly used for wired Ethernet networking.
• An expansion card providing such a connector is normally a Network Interface Card or Ethernet adapter.
• RAM is installed in memory slots, while processor cooling and audio functions use different components.
• An expansion card providing such a connector is normally a Network Interface Card or Ethernet adapter.
• RAM is installed in memory slots, while processor cooling and audio functions use different components.
వివరణ:
Question 8
ప్రశ్న 8
A technician installs a conventional 3.5-inch SATA hard disk in a desktop PC. Which pair of connections is normally required for the drive to operate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A conventional SATA hard disk requires a SATA data connection to the motherboard or SATA controller.
• It also requires a SATA power connection from the system power supply.
• Data and power are therefore provided through separate connectors in a typical desktop SATA installation.
• It also requires a SATA power connection from the system power supply.
• Data and power are therefore provided through separate connectors in a typical desktop SATA installation.
వివరణ:
Question 9
ప్రశ్న 9
An M.2 SSD is explicitly specified as an NVMe device. Through which interface does NVMe normally communicate in a PC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• NVMe storage devices normally communicate through PCI Express rather than the traditional SATA command interface.
• M.2 describes a form factor and connector specification, while the installed device may use different supported interfaces.
• Therefore identifying an M.2 drive specifically as NVMe indicates PCIe-based communication.
• M.2 describes a form factor and connector specification, while the installed device may use different supported interfaces.
• Therefore identifying an M.2 drive specifically as NVMe indicates PCIe-based communication.
వివరణ:
Question 10
ప్రశ్న 10
After assembling a PC, the motherboard's 24-pin ATX connector is attached and cabinet fans start when the power button is pressed, but the system does not begin normal CPU initialization. The separate CPU power connector near the processor was left disconnected. What should the technician do?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Modern desktop processors require dedicated power supplied through an ATX12V/EPS connector near the CPU socket.
• Connecting only the main 24-pin motherboard cable may not provide the required processor power path.
• A missing CPU power connection can therefore prevent successful processor initialization and normal POST.
• Connecting only the main 24-pin motherboard cable may not provide the required processor power path.
• A missing CPU power connection can therefore prevent successful processor initialization and normal POST.
వివరణ:
Question 11
ప్రశ్న 11
What is the principal function of the Voltage Regulator Module (VRM) associated with the CPU on a motherboard?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The CPU requires carefully regulated low-voltage electrical power.
• The motherboard's VRM converts and regulates supplied power to levels appropriate for the processor.
• Stable power delivery is especially important because modern processors can change their power requirements rapidly.
• The motherboard's VRM converts and regulates supplied power to levels appropriate for the processor.
• Stable power delivery is especially important because modern processors can change their power requirements rapidly.
వివరణ:
Question 12
ప్రశ్న 12
A desktop has no suitable external USB expansion capacity for a specialised requirement, but a free PCI Express slot is available. Which component can be installed to add additional USB controller ports?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A PCIe USB expansion card can add a USB controller and additional USB ports to a desktop system.
• Expansion slots allow new hardware functions to be added without replacing the entire motherboard.
• CPU sockets, DIMMs and SATA drives do not perform the function of a USB expansion controller.
• Expansion slots allow new hardware functions to be added without replacing the entire motherboard.
• CPU sockets, DIMMs and SATA drives do not perform the function of a USB expansion controller.
వివరణ:
Question 13
ప్రశ్న 13
Which statement best describes the primary function of a discrete graphics card installed in a computer?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A discrete graphics card contains specialised hardware for processing and rendering graphical data.
• It normally provides one or more display-output interfaces for monitors.
• CPU voltage regulation, RTC backup and firmware storage are motherboard functions handled by other components.
• It normally provides one or more display-output interfaces for monitors.
• CPU voltage regulation, RTC backup and firmware storage are motherboard functions handled by other components.
వివరణ:
Question 14
ప్రశ్న 14
Which statement correctly describes the main function of the computer's power supply unit or SMPS?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A desktop SMPS converts incoming mains AC into regulated DC outputs required by the motherboard, storage devices and other components.
• Different components may require different voltage rails and power connections.
• The PSU does not perform CPU calculations or act as working memory.
• Different components may require different voltage rails and power connections.
• The PSU does not perform CPU calculations or act as working memory.
వివరణ:
Question 15
ప్రశ్న 15
The firmware used to initialise motherboard hardware and start the boot process is normally stored in which type of motherboard component?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• BIOS or UEFI firmware is stored in non-volatile memory on the motherboard so that it remains available when system power is removed.
• Modern motherboards commonly use rewritable flash memory for this purpose.
• Ordinary RAM is volatile and therefore cannot by itself retain the startup firmware after power is removed.
• Modern motherboards commonly use rewritable flash memory for this purpose.
• Ordinary RAM is volatile and therefore cannot by itself retain the startup firmware after power is removed.
వివరణ:
Question 16
ప్రశ్న 16
A DDR4 desktop memory module cannot normally be correctly installed in a DDR5 DIMM slot even if the module appears to be of similar overall size. Which design feature most directly helps prevent such incorrect installation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• DIMM generations use physical keying or notch positions designed to prevent incompatible memory modules from being inserted into the wrong slot.
• DDR generations also differ electrically and architecturally, so physical similarity does not imply compatibility.
• A module should never be forced into a slot when its keying does not align.
• DDR generations also differ electrically and architecturally, so physical similarity does not imply compatibility.
• A module should never be forced into a slot when its keying does not align.
వివరణ:
Question 17
ప్రశ్న 17
Which of the following most accurately describes a multi-core CPU?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A multi-core processor incorporates two or more processing cores within the processor design.
• Multiple cores can allow more than one instruction stream or task to make processing progress concurrently, subject to software and architecture.
• The term does not refer to the number of motherboards, storage drives or power supplies.
• Multiple cores can allow more than one instruction stream or task to make processing progress concurrently, subject to software and architecture.
• The term does not refer to the number of motherboards, storage drives or power supplies.
వివరణ:
Question 18
ప్రశ్న 18
A motherboard has no free onboard SATA ports, but the user needs to connect additional SATA drives. Which hardware solution is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A SATA controller expansion card can provide additional SATA interfaces when motherboard ports are insufficient.
• Such cards are commonly installed in a compatible PCI Express expansion slot.
• RAM, audio hardware and CPU cooling components cannot provide additional SATA data channels.
• Such cards are commonly installed in a compatible PCI Express expansion slot.
• RAM, audio hardware and CPU cooling components cannot provide additional SATA data channels.
వివరణ:
Question 19
ప్రశ్న 19
Which system component provides temporary working storage for programs and data that the CPU is actively using and loses its contents when normal power is removed?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• RAM provides fast temporary working storage for active programs and data used during computer operation.
• Conventional system RAM is volatile, so its stored contents are lost when power is removed.
• Hard disks, flash firmware and optical media are non-volatile storage technologies.
• Conventional system RAM is volatile, so its stored contents are lost when power is removed.
• Hard disks, flash firmware and optical media are non-volatile storage technologies.
వివరణ:
Question 20
ప్రశ్న 20
Match List I with List II:
List I
(a) CPU
(b) RAM
(c) NIC
(d) Power Supply Unit
List II
1. Provides network communication
2. Executes program instructions
3. Supplies regulated electrical power
4. Provides temporary working storage
Choose the correct matching code.
List I
(a) CPU
(b) RAM
(c) NIC
(d) Power Supply Unit
List II
1. Provides network communication
2. Executes program instructions
3. Supplies regulated electrical power
4. Provides temporary working storage
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The CPU executes instructions, giving (a)-2.
• RAM provides temporary working storage, giving (b)-4.
• A NIC provides network communication, while the Power Supply Unit supplies regulated electrical power, giving (c)-1 and (d)-3.
• RAM provides temporary working storage, giving (b)-4.
• A NIC provides network communication, while the Power Supply Unit supplies regulated electrical power, giving (c)-1 and (d)-3.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: C. CPU heat sink and cooling fan సమాధానం: C.
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Question 2 ప్రశ్న 2Answer: A. Billions of clock cycles per second సమాధానం: A.
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Question 3 ప్రశ్న 3Answer: D. Chipset or Platform Controller Hub సమాధానం: D.
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Question 4 ప్రశ్న 4Answer: B. Fetch → Decode → Execute → Store or write back సమాధానం: B.
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Question 5 ప్రశ్న 5Answer: C. 1, 2 and 3 only సమాధానం: C.
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Question 6 ప్రశ్న 6Answer: D. Sound card సమాధానం: D.
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Question 7 ప్రశ్న 7Answer: A. Providing network connectivity సమాధానం: A.
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Question 8 ప్రశ్న 8Answer: C. SATA data cable to the motherboard and SATA power connector from the power supply సమాధానం: C.
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Question 9 ప్రశ్న 9Answer: B. PCI Express సమాధానం: B.
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Question 10 ప్రశ్న 10Answer: D. Connect the ATX12V/EPS CPU power connector సమాధానం: D.
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Question 11 ప్రశ్న 11Answer: B. To provide stable, appropriately regulated voltage to the processor సమాధానం: B.
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Question 12 ప్రశ్న 12Answer: A. PCIe USB expansion card సమాధానం: A.
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Question 13 ప్రశ్న 13Answer: D. It processes and renders graphics and generates display output. సమాధానం: D.
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Question 14 ప్రశ్న 14Answer: C. It converts incoming AC power into regulated DC voltages required by computer components. సమాధానం: C.
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Question 15 ప్రశ్న 15Answer: A. Non-volatile flash memory containing BIOS/UEFI firmware సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: B. Different physical keying or notch position సమాధానం: B.
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Question 17 ప్రశ్న 17Answer: C. A processor containing two or more processing cores within a single processor package or design సమాధానం: C.
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Question 18 ప్రశ్న 18Answer: D. Install a compatible PCIe SATA controller card సమాధానం: D.
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Question 19 ప్రశ్న 19Answer: A. RAM సమాధానం: A.
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Question 20 ప్రశ్న 20Answer: B. (a)-2, (b)-4, (c)-1, (d)-3 సమాధానం: B.