Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
A technician proposes replacing the existing CPU of a desktop PC with a newer model. Which set of factors should be verified before the processor is purchased?
1. CPU socket compatibility
2. Motherboard chipset/firmware support
3. Processor power and cooling requirements
4. Colour of the motherboard PCB
1. CPU socket compatibility
2. Motherboard chipset/firmware support
3. Processor power and cooling requirements
4. Colour of the motherboard PCB
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• CPU compatibility depends on more than whether a processor can physically fit into a socket.
• Socket type, motherboard chipset/BIOS or UEFI support, and processor power and cooling requirements must be considered.
• Motherboard PCB colour has no role in processor compatibility.
• Socket type, motherboard chipset/BIOS or UEFI support, and processor power and cooling requirements must be considered.
• Motherboard PCB colour has no role in processor compatibility.
వివరణ:
Question 2
ప్రశ్న 2
Before installing RAM or an expansion card in a desktop computer, which precaution is most appropriate to reduce the risk of electrostatic-discharge damage?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Static electricity can damage sensitive semiconductor components even when the discharge is not felt by the technician.
• Disconnecting power and following proper ESD precautions reduces this risk.
• Components should normally be handled by their edges rather than by contacts or circuitry.
• Disconnecting power and following proper ESD precautions reduces this risk.
• Components should normally be handled by their edges rather than by contacts or circuitry.
వివరణ:
Question 3
ప్రశ్న 3
Which sequence is most appropriate when installing a compatible CPU into an empty motherboard socket?
1. Align the processor using the socket orientation marks.
2. Verify that the processor and socket are compatible.
3. Secure the processor using the socket retention mechanism.
4. Lower the processor carefully into the socket without forcing it.
1. Align the processor using the socket orientation marks.
2. Verify that the processor and socket are compatible.
3. Secure the processor using the socket retention mechanism.
4. Lower the processor carefully into the socket without forcing it.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Compatibility must be verified before attempting physical installation.
• The processor is then aligned according to its orientation marks and carefully placed into the socket without force.
• The retention mechanism is secured only after correct seating has been confirmed.
• The processor is then aligned according to its orientation marks and carefully placed into the socket without force.
• The retention mechanism is secured only after correct seating has been confirmed.
వివరణ:
Question 4
ప్రశ్న 4
After a motherboard is installed in a cabinet, the PC immediately switches off whenever power is applied. Inspection shows that an extra metal standoff is touching the underside of the motherboard where no mounting hole exists. What is the most likely problem?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Motherboard standoffs should correspond only to actual mounting holes in the board.
• A metal standoff touching circuitry at an unintended location can create an electrical short and prevent normal startup.
• CPU frequency and monitor settings would not explain a power-off condition caused directly by physical contact under the motherboard.
• A metal standoff touching circuitry at an unintended location can create an electrical short and prevent normal startup.
• CPU frequency and monitor settings would not explain a power-off condition caused directly by physical contact under the motherboard.
వివరణ:
Question 5
ప్రశ్న 5
A newly assembled PC shows very high CPU temperature immediately after startup. The processor and CPU fan are compatible and the fan rotates normally. Which assembly error should be checked first?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Proper physical contact between the processor and heat sink is essential for transferring heat away from the CPU.
• Incorrect cooler mounting, failure to remove protective film, or missing/improper thermal interface material can cause rapid overheating even when the fan spins.
• Keyboard, storage and LED connections do not directly determine CPU heat transfer.
• Incorrect cooler mounting, failure to remove protective film, or missing/improper thermal interface material can cause rapid overheating even when the fan spins.
• Keyboard, storage and LED connections do not directly determine CPU heat transfer.
వివరణ:
Question 6
ప్రశ్న 6
Which combination is most important when determining whether a power supply unit is suitable for a newly assembled desktop PC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The PSU must provide sufficient power for the complete system and the connectors required by the motherboard, CPU, graphics card and drives.
• Physical form-factor compatibility with the cabinet is also relevant.
• Cable colour and motherboard USB-port count do not determine PSU suitability.
• Physical form-factor compatibility with the cabinet is also relevant.
• Cable colour and motherboard USB-port count do not determine PSU suitability.
వివరణ:
Question 7
ప్రశ్న 7
A motherboard supports DDR4 desktop memory. Which of the following should be selected for normal installation in its memory slots?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• RAM must match the memory technology and module type supported by the motherboard.
• DDR generations are electrically and physically keyed differently and are not interchangeable simply because their modules appear similar.
• PCI Express and SATA are interfaces for other types of devices, not standard desktop system RAM.
• DDR generations are electrically and physically keyed differently and are not interchangeable simply because their modules appear similar.
• PCI Express and SATA are interfaces for other types of devices, not standard desktop system RAM.
వివరణ:
Question 8
ప్రశ్న 8
During PC assembly, the cabinet's power switch, reset switch, power LED and drive-activity LED should normally be connected to the:
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The motherboard front-panel header provides pins for cabinet switches and status LEDs.
• The exact pin arrangement should be checked in the motherboard documentation before connection.
• SATA, CPU fan and PCIe interfaces perform entirely different functions.
• The exact pin arrangement should be checked in the motherboard documentation before connection.
• SATA, CPU fan and PCIe interfaces perform entirely different functions.
వివరణ:
Question 9
ప్రశ్న 9
A discrete graphics card requires a PCI Express x16 interface and an 8-pin auxiliary power connection. Before installation, which check is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A graphics card must have a compatible expansion interface and sufficient electrical power.
• Many high-performance cards require auxiliary power from the PSU in addition to power available through the PCIe slot.
• Hard-disk brand and disabling RAM are unrelated to graphics-card compatibility.
• Many high-performance cards require auxiliary power from the PSU in addition to power available through the PCIe slot.
• Hard-disk brand and disabling RAM are unrelated to graphics-card compatibility.
వివరణ:
Question 10
ప్రశ్న 10
A motherboard has an M.2 socket, but a technician wants to install an M.2 NVMe SSD. Which statement is the most accurate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• M.2 describes a form factor and connector arrangement; supported signalling can vary by motherboard and slot.
• An NVMe SSD normally uses PCI Express communication, so the particular M.2 socket must support that interface.
• Physical size and keying must also be compatible.
• An NVMe SSD normally uses PCI Express communication, so the particular M.2 socket must support that interface.
• Physical size and keying must also be compatible.
వివరణ:
Question 11
ప్రశ్న 11
A conventional SATA SSD is installed correctly in a desktop cabinet. Which two connections are normally required for operation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A conventional SATA SSD normally uses separate data and power connections.
• The SATA data cable connects the drive to a motherboard or controller SATA port.
• A SATA power connector from the power supply provides electrical power to the drive.
• The SATA data cable connects the drive to a motherboard or controller SATA port.
• A SATA power connector from the power supply provides electrical power to the drive.
వివరణ:
Question 12
ప్రశ్న 12
A PC fails to display anything immediately after new RAM modules are installed, although it worked correctly before the upgrade. What should the technician check FIRST?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Because the fault began immediately after a RAM installation, the newly installed memory is the first component to verify.
• Incorrect seating or incompatible memory can prevent successful POST and result in a blank display.
• Printer software and disk-space availability occur at a much later operating-system stage.
• Incorrect seating or incompatible memory can prevent successful POST and result in a blank display.
• Printer software and disk-space availability occur at a much later operating-system stage.
వివరణ:
Question 13
ప్రశ్న 13
Consider the following statements about CPU installation:
1. Processor orientation marks should be aligned with the socket.
2. Excessive force should not be required to seat a correctly aligned processor.
3. Socket pins or processor contacts should be handled unnecessarily during installation.
4. The processor-retention mechanism should be secured after proper seating.
Which of the statements given above are correct?
1. Processor orientation marks should be aligned with the socket.
2. Excessive force should not be required to seat a correctly aligned processor.
3. Socket pins or processor contacts should be handled unnecessarily during installation.
4. The processor-retention mechanism should be secured after proper seating.
Which of the statements given above are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Correct orientation is essential, and a properly aligned CPU should not be forced into the socket.
• Delicate processor contacts or socket pins should not be touched unnecessarily because contamination or physical damage may cause failure.
• The retention mechanism is secured after correct processor placement.
• Delicate processor contacts or socket pins should not be touched unnecessarily because contamination or physical damage may cause failure.
• The retention mechanism is secured after correct processor placement.
వివరణ:
Question 14
ప్రశ్న 14
A Micro-ATX motherboard is being installed in a replacement cabinet. Which characteristic of the cabinet is essential for basic physical compatibility?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A cabinet must support the physical dimensions and mounting-hole pattern of the motherboard form factor being installed.
• Form-factor support also affects positioning of expansion slots and rear I/O alignment.
• RAM brand and number of storage drives do not determine basic motherboard-to-case mechanical compatibility.
• Form-factor support also affects positioning of expansion slots and rear I/O alignment.
• RAM brand and number of storage drives do not determine basic motherboard-to-case mechanical compatibility.
వివరణ:
Question 15
ప్రశ్న 15
A motherboard physically supports the socket of a newly released CPU, but the system does not recognize the processor. The manufacturer's compatibility list states that support was added in a later firmware release. What is the most appropriate conclusion?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Physical socket compatibility alone may not be sufficient for a motherboard to support a particular processor model.
• BIOS/UEFI firmware must contain the required processor initialization support.
• Where manufacturer documentation specifies a minimum firmware version, that requirement must be satisfied.
• BIOS/UEFI firmware must contain the required processor initialization support.
• Where manufacturer documentation specifies a minimum firmware version, that requirement must be satisfied.
వివరణ:
Question 16
ప్రశ్న 16
Which practice is most appropriate while handling an expansion card during installation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Holding an expansion card by its edges minimizes contact with sensitive circuitry and electrical contacts.
• Appropriate ESD precautions should also be used during installation.
• Components should not normally be installed or removed from a conventional desktop PC while it is powered.
• Appropriate ESD precautions should also be used during installation.
• Components should not normally be installed or removed from a conventional desktop PC while it is powered.
వివరణ:
Question 17
ప్రశ్న 17
After assembling a PC, several cables are hanging directly across the CPU cooler and case fans. Why should this be corrected before normal operation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Proper cable management helps preserve unobstructed airflow through the system cabinet.
• Cables contacting a fan can also physically interfere with fan rotation and reduce cooling performance.
• Cable routing does not alter the processor instruction set or automatically erase firmware.
• Cables contacting a fan can also physically interfere with fan rotation and reduce cooling performance.
• Cable routing does not alter the processor instruction set or automatically erase firmware.
వివరణ:
Question 18
ప్రశ్న 18
A newly installed expansion card causes a previously working PC to fail POST. Which troubleshooting approach is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• When a fault appears immediately after a hardware change, the changed component and its installation should be examined first.
• Reseating or temporarily removing the card helps determine whether the new hardware is causing the POST failure.
• Testing with a minimal hardware configuration is a standard isolation technique and avoids unnecessary replacement of unrelated components.
• Reseating or temporarily removing the card helps determine whether the new hardware is causing the POST failure.
• Testing with a minimal hardware configuration is a standard isolation technique and avoids unnecessary replacement of unrelated components.
వివరణ:
Question 19
ప్రశ్న 19
Why are motherboard standoffs installed between a desktop motherboard and the metal computer case?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Standoffs physically support the motherboard and maintain separation between its circuitry and the metal chassis.
• Correct placement helps prevent electrical short circuits while keeping the board aligned with mounting screws and expansion slots.
• Standoffs do not perform data-transfer, firmware-storage or processor-speed functions.
• Correct placement helps prevent electrical short circuits while keeping the board aligned with mounting screws and expansion slots.
• Standoffs do not perform data-transfer, firmware-storage or processor-speed functions.
వివరణ:
Question 20
ప్రశ్న 20
Which of the following is the BEST pre-power-on inspection after assembling a desktop PC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A systematic inspection before first power-on can prevent avoidable hardware faults and damage.
• Important checks include RAM and expansion-card seating, CPU cooling, motherboard and CPU power connectors, storage connections and removal of stray screws or conductive objects.
• Software installation and processor tuning should occur only after basic hardware assembly has been verified and the system starts normally.
• Important checks include RAM and expansion-card seating, CPU cooling, motherboard and CPU power connectors, storage connections and removal of stray screws or conductive objects.
• Software installation and processor tuning should occur only after basic hardware assembly has been verified and the system starts normally.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: C. 1, 2 and 3 only సమాధానం: C.
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Question 2 ప్రశ్న 2Answer: A. Disconnect system power and use proper ESD grounding precautions before handling the component. సమాధానం: A.
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Question 3 ప్రశ్న 3Answer: D. 2 → 1 → 4 → 3 సమాధానం: D.
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Question 4 ప్రశ్న 4Answer: B. The unused standoff may be short-circuiting motherboard traces. సమాధానం: B.
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Question 5 ప్రశ్న 5Answer: C. The heat sink may not be seated correctly or proper thermal interface contact may be missing. సమాధానం: C.
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Question 6 ప్రశ్న 6Answer: B. Required wattage, required power connectors and compatibility with the system form factor సమాధానం: B.
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Question 7 ప్రశ్న 7Answer: A. A compatible DDR4 DIMM supported by the motherboard సమాధానం: A.
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Question 8 ప్రశ్న 8Answer: D. Front-panel header సమాధానం: D.
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Question 9 ప్రశ్న 9Answer: B. Confirm that a suitable PCIe slot is available and that the PSU provides the required auxiliary power connection. సమాధానం: B.
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Question 10 ప్రశ్న 10Answer: C. The motherboard's M.2 socket must support the required PCIe/NVMe interface and the device's physical format. సమాధానం: C.
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Question 11 ప్రశ్న 11Answer: D. SATA data connection to the motherboard/controller and SATA power from the PSU సమాధానం: D.
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Question 12 ప్రశ్న 12Answer: A. Whether the RAM modules are compatible and fully seated in the correct slots సమాధానం: A.
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Question 13 ప్రశ్న 13Answer: C. 1, 2 and 4 only సమాధానం: C.
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Question 14 ప్రశ్న 14Answer: D. It must support the motherboard's form factor and corresponding mounting arrangement. సమాధానం: D.
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Question 15 ప్రశ్న 15Answer: B. A compatible BIOS/UEFI version may be required for the motherboard to initialize the processor. సమాధానం: B.
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Question 16 ప్రశ్న 16Answer: A. Hold the card mainly by its edges and avoid touching exposed contacts or components unnecessarily. సమాధానం: A.
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Question 17 ప్రశ్న 17Answer: D. Poor cable routing can obstruct airflow or interfere with cooling fans. సమాధానం: D.
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Question 18 ప్రశ్న 18Answer: C. Remove or reseat the newly installed card and test the system with the minimum required hardware. సమాధానం: C.
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Question 19 ప్రశ్న 19Answer: A. To support the board at its mounting points and prevent unintended electrical contact with the case సమాధానం: A.
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Question 20 ప్రశ్న 20Answer: B. Verify component seating, CPU cooler attachment, required power connectors, storage connections and absence of loose conductive objects. సమాధానం: B.