Chapter 2: Computer Hardware and Peripheral Devices (Set-7)
Which port is most commonly used to connect a pen drive for quick file transfer
A USB port
B VGA port
C DVI port
D RJ11 port
USB is the standard port for pen drives and many peripherals. It supports plug-and-play, supplies power, and allows fast data transfer depending on the USB version.
Which connector is mainly used for wired internet connection between computer and router
A HDMI connector
B SATA connector
C RJ45 connector
D Audio jack
RJ45 connectors are used with Ethernet cables for LAN and internet. HDMI carries video/audio, SATA connects storage internally, and audio jack is for sound devices.
Which port is mainly used to connect a monitor to a computer using analog video signal
A USB port
B VGA port
C RJ45 port
D SATA port
VGA sends analog video signals and is common in older monitors and PCs. USB is general-purpose, RJ45 is for networking, and SATA is used for storage devices.
Which connector provides digital video and is often used as a replacement for VGA in many setups
A RJ11 connector
B PS/2 port
C DVI connector
D SATA port
DVI carries digital video signals, giving better clarity than VGA. RJ11 is for telephone, PS/2 is for older keyboard/mouse, and SATA is used for storage data connections.
Which port commonly carries both digital video and audio through one cable to a monitor or TV
A HDMI port
B VGA port
C RJ45 port
D PS/2 port
HDMI supports digital video and audio in one cable. This makes it popular for TVs and monitors. VGA carries only analog video, and RJ45/PS/2 are used for different purposes.
Which cable is mainly used inside a computer to connect a SATA hard disk to the motherboard
A HDMI cable
B VGA cable
C SATA data cable
D Ethernet cable
SATA data cable transfers data between the motherboard and internal storage devices like HDDs and SSDs. HDMI/VGA are display cables, and Ethernet is for network connection.
Which connector supplies power directly to a SATA HDD or SATA SSD inside a desktop
A HDMI connector
B DVI connector
C RJ45 connector
D SATA power connector
SATA power connector comes from SMPS and provides required power to SATA drives. HDMI/DVI carry display signals, and RJ45 carries network data only.
Which port is normally used to connect headphones or speakers to a computer for sound output
A Audio jack
B SATA port
C VGA port
D RJ45 port
The audio jack is designed for audio input/output like speakers, headphones, and microphones. SATA is storage, VGA is video, and RJ45 is networking.
Which wireless technology is mainly used for short-range file sharing between two devices
A SATA
B VGA
C Bluetooth
D DVI
Bluetooth supports short-range wireless communication for file sharing, audio devices, and peripherals. SATA, VGA, and DVI are wired connectors and do not provide wireless transfer.
Which device is used to add Wi-Fi capability to a desktop computer
A Audio splitter
B VGA converter
C SATA cable
D Wi-Fi adapter
A Wi-Fi adapter connects a computer to wireless networks, usually via USB or PCIe. It provides wireless connectivity where built-in Wi-Fi is not available.
Which USB feature allows connecting devices while the computer is running without restart
A Disk partition
B Hot plugging
C File indexing
D Screen scaling
Hot plugging allows USB devices to be connected or removed while the system is on. The OS detects it and loads drivers automatically, making usage convenient.
What is the main purpose of a device driver in a computer
A Print documents fast
B Increase RAM size
C Control hardware device
D Save BIOS settings
A driver acts as a bridge between the operating system and hardware. It helps the OS communicate properly with devices like printers, graphics cards, and scanners.
Which Windows tool shows installed devices and helps update or fix driver issues
A Device Manager
B File Explorer
C Taskbar clock
D Notepad app
Device Manager lists all hardware devices, shows errors, and allows actions like updating, disabling, or uninstalling drivers. It is a key tool for troubleshooting device issues.
When a device is not working due to missing driver, which sign is commonly seen in Device Manager
A Green check mark
B Blue arrow icon
C Yellow warning icon
D Red underline
A yellow warning symbol indicates driver issues or hardware problems. Installing the correct driver usually fixes it. Other symbols are not common indicators for missing drivers.
Which driver is most important for full screen resolution and smooth graphics performance
A Printer driver
B Graphics driver
C Keyboard driver
D Mouse driver
Graphics drivers enable GPU features like high resolution, 3D acceleration, and better performance. Without it, display may be limited and slow, especially in games or design software.
Which driver is required to print documents correctly from a computer to a printer
A Audio driver
B BIOS driver
C Cache driver
D Printer driver
Printer drivers convert computer data into a format the printer understands. Without correct drivers, printers may not work properly or may print incorrect output.
What does “hardware compatibility” mean in simple terms
A Has more storage
B Prints faster pages
C Works with system
D Uses less power
Compatibility means the hardware device can function properly with the computer’s OS, drivers, and hardware requirements. Incompatible devices may not install drivers or may fail to work.
Why should 64-bit drivers be used on a 64-bit operating system
A Correct driver matching
B Increase monitor size
C Improve speaker sound
D Reduce dust inside
A 64-bit OS generally needs 64-bit drivers to communicate with hardware properly. Using wrong driver type may fail installation or cause device malfunction.
Which update improves internal software of devices like BIOS, SSD, and router
A Folder rename
B File copy
C Firmware update
D Screen rotate
Firmware is low-level software stored in hardware devices. Updating it can fix bugs, improve stability, and add compatibility, but it must be done carefully to avoid device issues.
Which OS feature detects new hardware and configures it automatically in many cases
A Disk cleanup
B Plug and play
C Screen saver
D Print preview
Plug and play allows the system to detect connected devices and install basic drivers automatically. This reduces manual setup and helps devices work quickly after connection.
Which device gives temporary backup power to shut down PC safely during power cuts
A UPS
B VGA cable
C Mouse
D Printer
A UPS provides short battery backup during power failure, preventing sudden shutdown. This helps avoid data loss and protects hardware from abrupt power interruption.
Which device protects electronics from voltage fluctuation in unstable power areas
A Webcam
B Barcode reader
C Voltage stabilizer
D Plotter
A voltage stabilizer maintains steady voltage supply, protecting sensitive electronics like computers from under-voltage and over-voltage damage. It is useful where power supply is irregular.
Which small battery on motherboard keeps time and BIOS settings when power is off
A RAM battery
B CMOS battery
C GPU battery
D USB battery
CMOS battery powers the real-time clock and preserves BIOS settings when the PC is unplugged. If it becomes weak, time and BIOS settings may reset.
Which safety method prevents damage to components from static electricity while repairing a PC
A High brightness
B Low volume
C Fast startup
D ESD protection
ESD protection like wrist straps and anti-static mats prevents static discharge that can damage chips and memory. Static damage is often invisible but can cause failure later.
If a computer runs very hot and slows down, what is the most likely issue
A Overheating problem
B Wrong wallpaper
C Full keyboard
D Extra icons
Overheating can cause the CPU/GPU to slow down (thermal throttling) or shut down. Common reasons include dust, blocked airflow, failed fan, or poor thermal paste contact.
Which preventive action helps improve airflow inside a desktop cabinet
A Change file names
B Print test page
C Clean fans regularly
D Increase font size
Cleaning fans and vents removes dust that blocks airflow, improves cooling, and reduces overheating risk. Software actions like file names or fonts do not affect cabinet airflow.
Which cabinet type usually stands upright and provides space for expansion
A Flatbed scanner
B Tower cabinet
C Laser printer
D LCD panel
Tower cabinets are vertical cases that offer good airflow and more space for expansion cards and drives. The other items are devices, not cabinet types.
Which term describes motherboard size standard like ATX or microATX
A Form factor
B Refresh rate
C Bit rate
D File format
Form factor defines motherboard dimensions, mounting points, and layout. It affects which cabinet fits the board and how many slots or ports can be supported.
Which storage arrangement uses multiple drives together for speed or data safety
A BIOS
B USB
C RAID
D ROM
RAID combines multiple drives for performance, redundancy, or both depending on RAID level. It is common in servers and systems where uptime and data protection are important.
Which basic troubleshooting step is best if a USB device is not detected in one port
A Delete temp files
B Change wallpaper
C Increase volume
D Try other USB port
Testing another USB port helps identify whether the port is faulty or the device/cable is the problem. It is a simple first check before reinstalling drivers or replacing hardware.
Which connector is commonly used for wired internet and usually clicks when inserted
A HDMI plug
B SATA plug
C RJ45 plug
D VGA plug
RJ45 plugs have a locking tab that clicks into place in Ethernet ports. HDMI carries audio/video, SATA is for drives, and VGA is for analog display.
Which connector is widely used for internal hard drive data transfer in many desktops
A SATA connector
B Audio jack
C RJ45 connector
D USB adapter
SATA connectors provide data transfer between motherboard and internal drives. Audio jack is for sound, RJ45 is for network, and USB adapters are external accessory connections.
Which item is a correct example of a display cable type
A SATA cable
B Ethernet cable
C HDMI cable
D Power cable
HDMI is a display cable used to connect computers to monitors or TVs. SATA is for internal storage data, Ethernet is network cable, and power cable supplies electricity.
Which connector is mainly used to connect monitor to PC for digital video in older setups
A RJ11 connector
B PS/2 connector
C SATA connector
D DVI connector
DVI provides digital video output and was commonly used before HDMI became universal. RJ11 and PS/2 are older communication/input connectors, and SATA is for storage data.
Which audio port is commonly used for connecting a microphone on many desktops
A RJ45 port
B Mic input jack
C VGA port
D SATA port
A microphone input jack accepts analog audio input. Networking and video ports cannot carry microphone signals directly in typical desktop configurations.
Which of these is the safest action before installing a new driver from unknown source
A Disable antivirus
B Ignore device model
C Use trusted source
D Skip restart always
Drivers should be downloaded from trusted sources like the manufacturer or official updates. Unknown sources may contain malware or wrong drivers, causing system instability or security risk.
Which is the easiest way to update many device drivers automatically in Windows
A Windows Update
B Paint tool
C Calculator app
D Sticky notes
Windows Update can deliver driver updates and system patches. It helps keep devices compatible and stable, especially for common hardware, without manually searching for drivers.
Which driver type helps a printer work with extra features like duplex and quality settings
A VGA driver
B BIOS setting
C Manufacturer driver
D Cache control
Generic drivers may allow basic printing, but manufacturer drivers enable full printer features like duplex printing, special paper handling, and advanced quality controls.
If a device works slowly due to outdated driver, what is the best improvement step
A Delete photos
B Update device driver
C Change monitor
D Replace keyboard
Updating drivers can fix bugs, improve performance, and enhance compatibility. This is especially true for graphics, network, and printer drivers. Deleting photos or changing keyboard won’t fix driver performance.
Which feature allows a phone to connect a pen drive using an OTG cable
A RAID support
B BIOS support
C VGA support
D USB OTG support
USB OTG lets a phone act as a USB host, allowing it to read pen drives, connect keyboards, or other USB devices through an OTG adapter.
Which connector is mainly used for telephone line, not for modern Ethernet LAN
A RJ45 connector
B HDMI connector
C RJ11 connector
D DVI connector
RJ11 is used for telephone lines and DSL connections. RJ45 is used for Ethernet LAN networking. HDMI and DVI are display connectors.
Which port is most used for connecting a printer to a computer today
A USB port
B VGA port
C SATA port
D PS/2 port
Most modern printers connect via USB or Wi-Fi. USB is widely supported and allows plug-and-play installation with drivers for printing and scanning functions.
Which term means removing a device safely before unplugging to avoid file corruption
A Disk format
B Safely remove
C Driver rollback
D Screen refresh
Safely remove ensures ongoing write operations are completed before unplugging storage devices. This helps prevent file corruption, especially for pen drives and external hard drives.
Which indicator suggests a CMOS battery may need replacement
A Loud speaker
B Fast mouse
C Time resets
D Bright screen
If system date and time reset after shutdown or unplugging, the CMOS battery is likely weak. Replacing it restores correct timekeeping and BIOS setting retention.
Which practice reduces static discharge risk while touching internal computer parts
A Ground yourself
B Wear wool clothes
C Rub plastic sheet
D Stand on carpet
Grounding removes static charge from your body, preventing ESD damage to sensitive parts like RAM and motherboard chips. Wool, plastic rubbing, and carpet increase static buildup.
Which statement about HDMI and VGA is correct in basic terms
A VGA is digital
B Both are wireless
C Both carry audio
D HDMI is digital
HDMI carries digital video and audio, while VGA carries analog video only. Neither is wireless by default, and VGA does not carry audio through the same cable.
Which cable type is mainly used for connecting two computers for file sharing on a local wired network
A HDMI cable
B SATA cable
C Ethernet cable
D DVI cable
Ethernet cables connect devices on a LAN for data sharing and internet access. HDMI and DVI connect displays, and SATA connects internal storage devices.
Which hardware resource problem can stop a device from working properly in rare cases
A Resource conflict
B Brightness conflict
C Theme conflict
D Font conflict
Hardware needs system resources like IRQ and I/O addresses. If two devices conflict, the OS may show errors and the device may fail until drivers or settings resolve the conflict.
Which basic step helps if sound is not working due to missing audio driver
A Change keyboard
B Clean printer
C Install audio driver
D Replace monitor
Audio drivers enable the OS to communicate with sound hardware. Without them, speakers or headphones may not work. Installing the correct driver restores sound output.
Which simple check is best if Wi-Fi is not available on a desktop using a USB Wi-Fi adapter
A Change wallpaper
B Reconnect adapter
C Delete videos
D Increase brightness
Reconnecting the adapter checks for loose connection and forces the OS to re-detect the device. If needed, try another USB port or reinstall Wi-Fi drivers. Wallpaper and brightness don’t affect Wi-Fi.