Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
A desktop computer randomly restarts when several applications are running simultaneously. A memory diagnostic tool reports errors only when a recently added RAM module is installed. What is the most appropriate next step?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Reproducible memory errors associated with one particular RAM module strongly indicate that the module or its compatibility should be investigated.
• Testing that module separately helps isolate it from other memory modules and slots.
• Storage, display and boot-order changes do not directly address diagnostic errors produced by RAM.
• Testing that module separately helps isolate it from other memory modules and slots.
• Storage, display and boot-order changes do not directly address diagnostic errors produced by RAM.
వివరణ:
Question 2
ప్రశ్న 2
A newly installed SATA hard disk does not appear in BIOS/UEFI. Which combination should be checked FIRST?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A drive that is absent even at firmware level should first be checked for basic hardware connectivity.
• A SATA drive normally requires a SATA data connection and an appropriate power connection.
• Operating-system settings cannot make firmware detect a physically disconnected drive.
• A SATA drive normally requires a SATA data connection and an appropriate power connection.
• Operating-system settings cannot make firmware detect a physically disconnected drive.
వివరణ:
Question 3
ప్రశ్న 3
A computer becomes unstable after thirty minutes of processor-intensive work. CPU temperature is significantly above its normal operating range, but the machine is stable when idle. Which cause is most directly indicated?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Processor-intensive workloads increase heat generation and therefore place greater demand on the cooling system.
• Excessively high temperature followed by instability under load points toward inadequate heat dissipation.
• Keyboard, printer and desktop-display settings do not explain temperature-related instability.
• Excessively high temperature followed by instability under load points toward inadequate heat dissipation.
• Keyboard, printer and desktop-display settings do not explain temperature-related instability.
వివరణ:
Question 4
ప్రశ్న 4
A PC contains two RAM modules. It fails POST when both are installed, but starts normally when either module is installed individually in the same working slot. Which should be investigated next?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Since each module works individually, the fault may involve configuration or compatibility when both modules operate together.
• Motherboard-supported memory combinations, matched specifications and recommended slot population should be checked.
• Operating-system and peripheral software are not involved at the POST stage.
• Motherboard-supported memory combinations, matched specifications and recommended slot population should be checked.
• Operating-system and peripheral software are not involved at the POST stage.
వివరణ:
Question 5
ప్రశ్న 5
A computer intermittently freezes and later reports file-system errors. The storage drive also produces repeated read errors in a hardware diagnostic utility. Which action is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Repeated hardware-level read errors can indicate deterioration or failure of the storage device.
• Important data should be protected before the condition worsens, followed by appropriate drive replacement or further diagnostics.
• CPU, mouse and monitor settings do not correct storage-media read failures.
• Important data should be protected before the condition worsens, followed by appropriate drive replacement or further diagnostics.
• CPU, mouse and monitor settings do not correct storage-media read failures.
వివరణ:
Question 6
ప్రశ్న 6
A system shuts down shortly after startup. Inspection shows that the CPU fan is connected to a chassis-fan header while the motherboard's CPU_FAN header is empty. The cooler itself is otherwise installed correctly. What should the technician do?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The CPU_FAN header is intended for processor-cooling fan monitoring and control on typical motherboards.
• Some systems may issue warnings or alter startup behaviour when no CPU fan is detected on the expected header.
• Storage formatting and display changes do not correct an incorrectly connected CPU fan.
• Some systems may issue warnings or alter startup behaviour when no CPU fan is detected on the expected header.
• Storage formatting and display changes do not correct an incorrectly connected CPU fan.
వివరణ:
Question 7
ప్రశ్న 7
After installing a new USB peripheral, the device repeatedly appears and disappears from the operating system. It behaves normally when connected to another computer using the same cable. Which should be tested next on the original PC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Because the device and cable work on another system, the original PC's port or USB controller path becomes a logical next area to test.
• Trying another port helps distinguish a local port problem from a broader controller or driver problem.
• Processor replacement and storage changes are unrelated to the observed USB-detection behaviour.
• Trying another port helps distinguish a local port problem from a broader controller or driver problem.
• Processor replacement and storage changes are unrelated to the observed USB-detection behaviour.
వివరణ:
Question 8
ప్రశ్న 8
A desktop PC becomes unstable only after installing a second RAM module of a different speed and specification. Which principle is most relevant?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Motherboards support defined memory technologies, capacities, speeds and configurations.
• Mixing modules with unsuitable or unsupported characteristics can cause POST failures or runtime instability.
• Storage and display devices do not determine fundamental RAM compatibility.
• Mixing modules with unsuitable or unsupported characteristics can cause POST failures or runtime instability.
• Storage and display devices do not determine fundamental RAM compatibility.
వివరణ:
Question 9
ప్రశ్న 9
Which symptom most strongly suggests that a storage cable or connector should be checked before assuming that the storage device itself has failed?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Intermittent detection associated with movement or cable disturbance is consistent with a loose or unreliable connection.
• Reseating or replacing the data cable and checking power connections is appropriate before condemning the drive.
• CPU, keyboard and display symptoms belong to different subsystems.
• Reseating or replacing the data cable and checking power connections is appropriate before condemning the drive.
• CPU, keyboard and display symptoms belong to different subsystems.
వివరణ:
Question 10
ప్రశ్న 10
A PC displays normally using the motherboard's supported integrated graphics output, but shows no display when a discrete graphics card is installed. Which diagnostic action is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Successful display through integrated graphics shows that the monitor and basic system can produce video output.
• Troubleshooting should therefore focus on installation, power and output connection of the discrete card.
• Storage formatting, RAM removal and keyboard replacement do not directly address the graphics-card path.
• Troubleshooting should therefore focus on installation, power and output connection of the discrete card.
• Storage formatting, RAM removal and keyboard replacement do not directly address the graphics-card path.
వివరణ:
Question 11
ప్రశ్న 11
A computer freezes under heavy gaming load. Both CPU and GPU temperatures remain normal, but the system's estimated power demand exceeds the rated capacity of an old PSU. Which component should be investigated first?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A PSU that cannot provide sufficient stable power under peak load can cause freezes, shutdowns or restarts.
• Normal processor and graphics temperatures reduce the likelihood that thermal shutdown is the immediate cause.
• Input devices and the RTC battery do not supply the system's main operating power.
• Normal processor and graphics temperatures reduce the likelihood that thermal shutdown is the immediate cause.
• Input devices and the RTC battery do not supply the system's main operating power.
వివరణ:
Question 12
ప్రశ్న 12
Which sequence is the most appropriate method for isolating a suspected faulty RAM module when several modules are installed?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Testing memory modules individually helps identify whether a failure follows a particular module.
• Using a known-good supported slot reduces the number of variables involved in the diagnosis.
• Simultaneously replacing unrelated components makes fault isolation more difficult.
• Using a known-good supported slot reduces the number of variables involved in the diagnosis.
• Simultaneously replacing unrelated components makes fault isolation more difficult.
వివరణ:
Question 13
ప్రశ్న 13
Consider the following statements regarding overheating:
1. Dust accumulation can restrict airflow through heat sinks and vents.
2. A failed or obstructed cooling fan can increase component temperature.
3. Poor heat-sink contact can contribute to CPU overheating.
4. Increasing the number of startup applications is a physical method of improving CPU cooling.
Which statements are correct?
1. Dust accumulation can restrict airflow through heat sinks and vents.
2. A failed or obstructed cooling fan can increase component temperature.
3. Poor heat-sink contact can contribute to CPU overheating.
4. Increasing the number of startup applications is a physical method of improving CPU cooling.
Which statements are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Dust, failed fans and poor heat-sink contact can all reduce cooling effectiveness.
• These conditions can increase component temperature and contribute to thermal instability.
• Increasing startup applications increases software workload rather than physically improving cooling.
• These conditions can increase component temperature and contribute to thermal instability.
• Increasing startup applications increases software workload rather than physically improving cooling.
వివరణ:
Question 14
ప్రశ్న 14
After a SATA SSD is replaced, BIOS/UEFI detects the new drive correctly but Windows installation media does not show the drive as an installation target. What is the most appropriate interpretation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Detection by BIOS/UEFI establishes that the hardware can see the drive at firmware level.
• If an operating-system installer cannot access it, storage-controller configuration or required driver support may be relevant.
• Complete PSU, CPU-socket or POST failure is inconsistent with the system having progressed to the installer.
• If an operating-system installer cannot access it, storage-controller configuration or required driver support may be relevant.
• Complete PSU, CPU-socket or POST failure is inconsistent with the system having progressed to the installer.
వివరణ:
Question 15
ప్రశ్న 15
A motherboard has a visibly swollen capacitor near a power-regulation area and the PC exhibits random resets even with a known-good PSU and RAM. What is the most reasonable conclusion?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A visibly damaged or swollen capacitor can indicate a motherboard component failure.
• If other major suspects such as PSU and RAM have already been tested, motherboard power-regulation circuitry becomes a significant diagnostic target.
• Mouse, monitor and operating-system changes do not explain visible motherboard damage.
• If other major suspects such as PSU and RAM have already been tested, motherboard power-regulation circuitry becomes a significant diagnostic target.
• Mouse, monitor and operating-system changes do not explain visible motherboard damage.
వివరణ:
Question 16
ప్రశ్న 16
A PC repeatedly shuts down when the CPU reaches a high temperature but works normally again after cooling. This automatic behaviour primarily serves to:
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Modern systems can reduce performance or shut down when critical thermal thresholds are reached.
• Such thermal protection is intended to limit damage caused by excessive component temperature.
• It does not increase storage, install drivers or change boot partitions.
• Such thermal protection is intended to limit damage caused by excessive component temperature.
• It does not increase storage, install drivers or change boot partitions.
వివరణ:
Question 17
ప్రశ్న 17
An external USB scanner receives power, but the operating system reports an unknown device immediately after connection. Which action is the most appropriate first software-level check?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An 'unknown device' indication means the operating system detects a connected device but cannot correctly identify or operate it.
• Device Manager and the appropriate compatible driver are therefore logical software-level checks.
• RAM, CPU cooling and SATA boot order do not identify a USB scanner to the operating system.
• Device Manager and the appropriate compatible driver are therefore logical software-level checks.
• RAM, CPU cooling and SATA boot order do not identify a USB scanner to the operating system.
వివరణ:
Question 18
ప్రశ్న 18
A system passes POST but randomly freezes after several hours. Which diagnostic approach is BEST?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Intermittent instability can result from thermal, memory, storage or power-related faults.
• A systematic approach measures and tests likely subsystems individually so that the failure can be isolated.
• Replacing many components simultaneously or formatting without evidence prevents effective diagnosis.
• A systematic approach measures and tests likely subsystems individually so that the failure can be isolated.
• Replacing many components simultaneously or formatting without evidence prevents effective diagnosis.
వివరణ:
Question 19
ప్రశ్న 19
A hard disk is detected intermittently. A known-good SATA data cable and motherboard port have already been tested, but the fault continues. Which should be checked next?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Once the SATA data cable and motherboard data port have been ruled out, the remaining direct hardware path includes the drive's power connection and the drive itself.
• Unstable power to the drive can cause intermittent disappearance.
• If power is verified, the storage device becomes a stronger suspect.
• Unstable power to the drive can cause intermittent disappearance.
• If power is verified, the storage device becomes a stronger suspect.
వివరణ:
Question 20
ప్రశ్న 20
Match List I with List II:
List I
(a) Memory errors after RAM upgrade
(b) SSD absent from BIOS/UEFI
(c) Rapid CPU temperature rise
(d) USB peripheral shown as unknown device
List II
1. Check driver/device identification
2. Check RAM compatibility and seating
3. Check CPU cooler and thermal contact
4. Check storage data and power connections
Choose the correct matching code.
List I
(a) Memory errors after RAM upgrade
(b) SSD absent from BIOS/UEFI
(c) Rapid CPU temperature rise
(d) USB peripheral shown as unknown device
List II
1. Check driver/device identification
2. Check RAM compatibility and seating
3. Check CPU cooler and thermal contact
4. Check storage data and power connections
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Memory errors following a RAM upgrade first require compatibility and seating checks, giving (a)-2.
• A storage device absent at firmware level requires checking its data and power connections, giving (b)-4.
• Rapid CPU heating points to cooler/thermal contact, while an unknown USB device points toward device identification or driver support, giving (c)-3 and (d)-1.
• A storage device absent at firmware level requires checking its data and power connections, giving (b)-4.
• Rapid CPU heating points to cooler/thermal contact, while an unknown USB device points toward device identification or driver support, giving (c)-3 and (d)-1.
వివరణ:
Answer Key సమాధానాల పట్టిక
-
Question 1 ప్రశ్న 1Answer: B. Test the suspected RAM module individually in a supported slot and replace it if the errors are reproducible. సమాధానం: B.
-
Question 2 ప్రశ్న 2Answer: D. SATA data connection, drive power connection and the motherboard SATA port సమాధానం: D.
-
Question 3 ప్రశ్న 3Answer: A. Inadequate CPU cooling under load సమాధానం: A.
-
Question 4 ప్రశ్న 4Answer: C. Memory configuration, slot population rules and compatibility when the modules are used together సమాధానం: C.
-
Question 5 ప్రశ్న 5Answer: B. Back up important data and investigate or replace the failing storage device. సమాధానం: B.
-
Question 6 ప్రశ్న 6Answer: A. Connect the CPU cooler fan to the appropriate CPU_FAN header as specified by the motherboard. సమాధానం: A.
-
Question 7 ప్రశ్న 7Answer: C. Try another USB port and check the USB controller/device status. సమాధానం: C.
-
Question 8 ప్రశ్న 8Answer: A. Installed memory modules and their operating parameters must be compatible with the motherboard and with the supported memory configuration. సమాధానం: A.
-
Question 9 ప్రశ్న 9Answer: B. A SATA drive intermittently disappears from BIOS/UEFI when the cabinet is moved or the cable is disturbed. సమాధానం: B.
-
Question 10 ప్రశ్న 10Answer: C. Verify that the graphics card is fully seated, powered where required, and that the monitor is connected to the intended graphics output. సమాధానం: C.
-
Question 11 ప్రశ్న 11Answer: D. Power supply unit సమాధానం: D.
-
Question 12 ప్రశ్న 12Answer: A. Test the system with one module at a time in a known-good supported slot, then compare the results. సమాధానం: A.
-
Question 13 ప్రశ్న 13Answer: C. 1, 2 and 3 only సమాధానం: C.
-
Question 14 ప్రశ్న 14Answer: B. Firmware-level detection is working, so storage-controller mode or required installer driver/support should be investigated. సమాధానం: B.
-
Question 15 ప్రశ్న 15Answer: A. The motherboard should be considered a strong suspect and inspected or replaced appropriately. సమాధానం: A.
-
Question 16 ప్రశ్న 16Answer: D. Protect hardware from excessive thermal conditions. సమాధానం: D.
-
Question 17 ప్రశ్న 17Answer: B. Check Device Manager and install or update the correct compatible device driver. సమాధానం: B.
-
Question 18 ప్రశ్న 18Answer: C. Check temperatures, memory stability, storage health and power stability systematically, changing one relevant factor at a time. సమాధానం: C.
-
Question 19 ప్రశ్న 19Answer: A. The drive's power connection and the storage device itself సమాధానం: A.
-
Question 20 ప్రశ్న 20Answer: D. (a)-2, (b)-4, (c)-3, (d)-1 సమాధానం: D.