Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
What is the primary function of a Network Interface Card (NIC) in a computer?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A Network Interface Card provides the computer with network-connectivity capability.
• It transmits and receives network data through a supported wired or wireless interface.
• Graphics, power conversion and permanent file storage are handled by different components.
• It transmits and receives network data through a supported wired or wireless interface.
• Graphics, power conversion and permanent file storage are handled by different components.
వివరణ:
Question 2
ప్రశ్న 2
Which connector is most commonly associated with a conventional wired Ethernet NIC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• RJ-45-style connectors are commonly used with twisted-pair Ethernet network cables.
• An Ethernet NIC normally provides this interface for wired LAN connectivity.
• HDMI, PS/2 and audio jacks are used for display, legacy input devices and audio respectively.
• An Ethernet NIC normally provides this interface for wired LAN connectivity.
• HDMI, PS/2 and audio jacks are used for display, legacy input devices and audio respectively.
వివరణ:
Question 3
ప్రశ్న 3
A desktop computer has no built-in Ethernet capability, but an empty PCI Express expansion slot is available. Which component can be installed to provide wired network connectivity?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An Ethernet NIC can be supplied as a PCI Express expansion card.
• Installing such a card adds a network interface to a computer that lacks suitable onboard Ethernet hardware.
• Sound, graphics and power components do not provide wired network communication.
• Installing such a card adds a network interface to a computer that lacks suitable onboard Ethernet hardware.
• Sound, graphics and power components do not provide wired network communication.
వివరణ:
Question 4
ప్రశ్న 4
Which statement best describes an onboard NIC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Many modern motherboards include integrated Ethernet network-interface hardware.
• Such a network interface is commonly referred to as onboard or integrated LAN.
• A separate expansion NIC may still be added when another or different network interface is required.
• Such a network interface is commonly referred to as onboard or integrated LAN.
• A separate expansion NIC may still be added when another or different network interface is required.
వివరణ:
Question 5
ప్రశ్న 5
Which identifier is commonly associated with the hardware network interface of a NIC at the data-link level?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A network interface is commonly associated with a Media Access Control, or MAC, address.
• The MAC address identifies the network interface for data-link-layer communication on technologies such as Ethernet.
• Screen resolution, printer DPI and CPU multipliers describe unrelated hardware characteristics.
• The MAC address identifies the network interface for data-link-layer communication on technologies such as Ethernet.
• Screen resolution, printer DPI and CPU multipliers describe unrelated hardware characteristics.
వివరణ:
Question 6
ప్రశ్న 6
A wired Ethernet NIC has a link indicator LED that remains off after the network cable is connected. Which should be checked first?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A link indicator normally shows whether a physical Ethernet connection has been established.
• An unlit link LED can result from a disconnected or faulty cable, inactive switch/router port, disabled NIC or other physical-link problem.
• Display, printer and keyboard settings do not establish an Ethernet link.
• An unlit link LED can result from a disconnected or faulty cable, inactive switch/router port, disabled NIC or other physical-link problem.
• Display, printer and keyboard settings do not establish an Ethernet link.
వివరణ:
Question 7
ప్రశ్న 7
A newly installed Ethernet NIC appears in the operating system as an unknown device. What is most likely required?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A NIC requires an appropriate device driver so that the operating system can control the hardware correctly.
• An unknown-device indication commonly points to a missing or unsuitable driver.
• Monitor, storage and printer-consumable changes do not substitute for the NIC driver.
• An unknown-device indication commonly points to a missing or unsuitable driver.
• Monitor, storage and printer-consumable changes do not substitute for the NIC driver.
వివరణ:
Question 8
ప్రశ్న 8
Which statement correctly describes USB as a peripheral interface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• USB is a general-purpose peripheral interface supporting many device classes.
• It carries data and can supply electrical power to compatible devices within the limits of the applicable USB specification.
• Keyboards, mice, printers, scanners, storage devices and many other peripherals can use USB.
• It carries data and can supply electrical power to compatible devices within the limits of the applicable USB specification.
• Keyboards, mice, printers, scanners, storage devices and many other peripherals can use USB.
వివరణ:
Question 9
ప్రశ్న 9
Which of the following is primarily an input device?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A keyboard sends text, numbers and commands from the user into the computer.
• It is therefore classified as an input device.
• Monitors, speakers and printers primarily deliver information from the computer to the user and are output devices.
• It is therefore classified as an input device.
• Monitors, speakers and printers primarily deliver information from the computer to the user and are output devices.
వివరణ:
Question 10
ప్రశ్న 10
Which device can normally function as both an input and an output device?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A touchscreen displays visual information, performing an output function.
• It also detects touches or gestures from the user, performing an input function.
• It is therefore an example of an input/output device.
• It also detects touches or gestures from the user, performing an input function.
• It is therefore an example of an input/output device.
వివరణ:
Question 11
ప్రశ్న 11
Which pair is correctly classified?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A scanner converts physical documents or images into computer input.
• A printer converts digital information into physical printed output.
• The other options reverse the normal input/output roles of the listed devices.
• A printer converts digital information into physical printed output.
• The other options reverse the normal input/output roles of the listed devices.
వివరణ:
Question 12
ప్రశ్న 12
Which interface was traditionally used for connecting keyboards and mice to many older desktop PCs before USB became dominant?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• PS/2 ports were widely used on older PCs for keyboards and mice.
• They were commonly distinguished by separate keyboard and mouse connectors.
• HDMI, RJ-45 and SATA serve display, network and storage functions respectively.
• They were commonly distinguished by separate keyboard and mouse connectors.
• HDMI, RJ-45 and SATA serve display, network and storage functions respectively.
వివరణ:
Question 13
ప్రశ్న 13
Which interface is primarily intended to carry digital video and audio from a computer to a compatible monitor or television?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• HDMI is a digital multimedia interface capable of carrying both video and audio.
• It is commonly used between computers, monitors, televisions and other multimedia equipment.
• PS/2, Ethernet and parallel ports serve different peripheral purposes.
• It is commonly used between computers, monitors, televisions and other multimedia equipment.
• PS/2, Ethernet and parallel ports serve different peripheral purposes.
వివరణ:
Question 14
ప్రశ్న 14
A legacy printer uses a wide multi-pin interface traditionally associated with older PC printer connections. Which interface is most likely being used?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The traditional PC parallel port was widely associated with older printers.
• It transferred multiple data bits over parallel signal lines and was later largely replaced by USB and network printing.
• HDMI and PS/2 are not traditional printer interfaces.
• It transferred multiple data bits over parallel signal lines and was later largely replaced by USB and network printing.
• HDMI and PS/2 are not traditional printer interfaces.
వివరణ:
Question 15
ప్రశ్న 15
A USB mouse is connected, but the pointer does not move and the device is not detected. Which is the most appropriate first troubleshooting action?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A simple connection or USB-port problem should be eliminated before replacing hardware.
• Reconnecting the mouse and testing another known-working port helps isolate whether the fault follows the peripheral or remains with a particular port.
• CPU, storage and monitor replacement would be premature.
• Reconnecting the mouse and testing another known-working port helps isolate whether the fault follows the peripheral or remains with a particular port.
• CPU, storage and monitor replacement would be premature.
వివరణ:
Question 16
ప్రశ్న 16
A USB printer is powered on and works when connected to another computer, but one particular PC does not detect it on any USB port. Which should be investigated next?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Because the printer functions on another computer, the printer itself is less likely to be the cause.
• Failure on every USB port of one PC suggests that its USB controller status, drivers or operating-system configuration should be checked.
• Display settings and paper colour do not control USB device detection.
• Failure on every USB port of one PC suggests that its USB controller status, drivers or operating-system configuration should be checked.
• Display settings and paper colour do not control USB device detection.
వివరణ:
Question 17
ప్రశ్న 17
Consider the following statements:
1. A keyboard is an input device.
2. A monitor is an output device.
3. A touchscreen can perform both input and output functions.
4. A NIC is used for network communication.
Which statements are correct?
1. A keyboard is an input device.
2. A monitor is an output device.
3. A touchscreen can perform both input and output functions.
4. A NIC is used for network communication.
Which statements are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A keyboard supplies user input, while a monitor presents visual output.
• A touchscreen combines display output with touch-sensitive input.
• A NIC provides network connectivity, so all four statements are correct.
• A touchscreen combines display output with touch-sensitive input.
• A NIC provides network connectivity, so all four statements are correct.
వివరణ:
Question 18
ప్రశ్న 18
A PC's onboard Ethernet adapter previously worked, but after a firmware-settings change the operating system no longer detects it at all. Which should be checked before installing a replacement NIC?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Many motherboard firmware setups allow onboard devices such as integrated LAN controllers to be enabled or disabled.
• If detection disappeared immediately after a firmware-setting change, onboard NIC status should be checked first.
• Printer, display and audio settings do not control firmware-level NIC availability.
• If detection disappeared immediately after a firmware-setting change, onboard NIC status should be checked first.
• Printer, display and audio settings do not control firmware-level NIC availability.
వివరణ:
Question 19
ప్రశ్న 19
Which matching of interface and typical peripheral function is NOT correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• PS/2 is a legacy keyboard and mouse interface, not a SATA storage connection.
• USB supports general peripherals, RJ-45 is commonly associated with wired Ethernet, and HDMI supports digital multimedia output.
• SATA uses its own dedicated data and power connectors for compatible storage devices.
• USB supports general peripherals, RJ-45 is commonly associated with wired Ethernet, and HDMI supports digital multimedia output.
• SATA uses its own dedicated data and power connectors for compatible storage devices.
వివరణ:
Question 20
ప్రశ్న 20
Match List I with List II:
List I
(a) NIC
(b) Scanner
(c) Monitor
(d) Touchscreen
List II
1. Input and output device
2. Network communication interface
3. Image-input device
4. Visual output device
Choose the correct matching code.
List I
(a) NIC
(b) Scanner
(c) Monitor
(d) Touchscreen
List II
1. Input and output device
2. Network communication interface
3. Image-input device
4. Visual output device
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A NIC provides network communication, giving (a)-2.
• A scanner is an image-input device and a monitor provides visual output, giving (b)-3 and (c)-4.
• A touchscreen combines visual output with touch input, giving (d)-1.
• A scanner is an image-input device and a monitor provides visual output, giving (b)-3 and (c)-4.
• A touchscreen combines visual output with touch input, giving (d)-1.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: C. To provide the hardware interface through which the computer communicates with a network సమాధానం: C.
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Question 2 ప్రశ్న 2Answer: A. RJ-45 సమాధానం: A.
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Question 3 ప్రశ్న 3Answer: D. PCI Express Ethernet NIC సమాధానం: D.
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Question 4 ప్రశ్న 4Answer: B. Its network-interface circuitry is integrated into the motherboard or system board. సమాధానం: B.
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Question 5 ప్రశ్న 5Answer: B. MAC address సమాధానం: B.
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Question 6 ప్రశ్న 6Answer: C. Ethernet cable connections, the network port at the other end, and NIC status సమాధానం: C.
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Question 7 ప్రశ్న 7Answer: A. Installation of the correct NIC driver సమాధానం: A.
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Question 8 ప్రశ్న 8Answer: D. It can carry data and can also supply power to compatible peripheral devices. సమాధానం: D.
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Question 9 ప్రశ్న 9Answer: A. Keyboard సమాధానం: A.
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Question 10 ప్రశ్న 10Answer: D. Touchscreen సమాధానం: D.
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Question 11 ప్రశ్న 11Answer: C. Scanner — input; Printer — output సమాధానం: C.
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Question 12 ప్రశ్న 12Answer: B. PS/2 సమాధానం: B.
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Question 13 ప్రశ్న 13Answer: D. HDMI సమాధానం: D.
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Question 14 ప్రశ్న 14Answer: A. Parallel port సమాధానం: A.
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Question 15 ప్రశ్న 15Answer: B. Reconnect the mouse and test another known-working USB port. సమాధానం: B.
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Question 16 ప్రశ్న 16Answer: C. USB controller/device drivers and operating-system USB status on that PC సమాధానం: C.
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Question 17 ప్రశ్న 17Answer: C. 1, 2, 3 and 4 సమాధానం: C.
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Question 18 ప్రశ్న 18Answer: B. Whether the onboard LAN/NIC has been disabled in BIOS/UEFI settings సమాధానం: B.
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Question 19 ప్రశ్న 19Answer: D. PS/2 — SATA storage-drive data connection సమాధానం: D.
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Question 20 ప్రశ్న 20Answer: A. (a)-2, (b)-3, (c)-4, (d)-1 సమాధానం: A.