Set 1- Information Technology General Knowledge Questions and Answers

Information technology general knowledge questions and answers give you more detailed knowledge of computer science. 

PART- ONE

QUESTION 

How many bits in 1 Nibble? (Storage units in the computer)

A. 1Bit

B. 8 Bits

C. 4 Bits

Answer: C.

QUESTION 

Who is considered the world's first computer programmer?

A.Chinese people around 300B.

B. Lady Augusta Ada Lovelace

C. Charles Babbage.

Answer: B

Also Read:- A History of Computer

QUESTION 

How many stages of the information processing cycle are there?

A. Four

B. Two

C. Three

D. Five

Answer: A

Explanation: They are Input, Process, Output, and Storage. The capacity of every computer is:

a. Accept date and instructions from the user

b. Process the data according to the given set of instructions.

c. Result for the user to process it.

d. Permanently store the result according to the user.

QUESTION 

When the input is wrong, the output will also be wrong, it is called?

A. GIGO (garbage-in-garbage-out)

B. IPM

C. The Bug

D. Debug

Answer: A

QUESTION 

The clock speed of a computer is measured in terms of?

A. Megabyte

B. Megahertz

C. Megapixel

D. Mega second

Answer: B

QUESTION 

Who invented Mark- I?

A. Charles Babbage

B. Lady Augusta Ada Lovelace

C. Howard Aiken

D. Herman Hollerith

Answer: C

Explanation: In 1973 a professor at Harvard University developed an electro-mechanical computer named Mark-I.

QUESTION 

Can a USB port supply power to a device?

A. True

B. False

Answer: B

Explanation: Some USB devices, such as hard drives, have their own power supplies, while other USB devices, such as keyboards, use power from the USB interface.

USB Port: USB stands for Universal Serial Bus, an industry standard for digital data communication. The USB port allows USB devices to connect to each other and transfer digital data over a USB cable. They can also supply electric power over the cable to the equipment that needs it.

Hard Drive: A hard drive is essentially a metal casing with a magnetic coating that stores your data.

Keyboard: A keyboard is an input device used to give instructions.

QUESTION 

What inspection should you do when replacing the power supply?

A. Voltage

B. Current

C. Wattage

D. Resistance

Answer: C

Explanation: Wattage should be checked. The replacement power supply must supply the same wattage.

Voltage is the electric potential or potential difference expressed in volts.

Current is a motion of positive or negative electric particles.

Wattage is the amount of power expressed in watts.

Resistance is a measure of resistance to current flow in an electrical circuit.

QUESTION 

What would a Multimeter be used to measure?

A. CD-ROM data

B. Power-supply voltage

C. Floppy drive speed

D. RAID controller synchronization

Answer: B

Explanation: A multimeter can be used to measure voltage.

RAID Controller: It is a type of storage component that manages disk drives (redundant arrays of independent disks) in a RAID infrastructure.

QUESTION 

When your hard drive is developing bad sectors, what is your first action according to reports?

A. Replace the hard drive.

B. Run Secclean from DOS

C. Run the defrag utility on the Hard drive.

D. Run a scan disk with a complete option.

Answer: D

Explanation: The Scan disk must be run to check and repair the hard disk.

Incorrect Answers

A: Eventually we may be forced to replace the hard drive, but the first action should not take place.

B:  Secclean is a Unix utility.

C: Defragmenting a hard drive can make things worse. We must repair the disc first.

QUESTION 

Which main components were used in the 3^rd generation computer?

A. Vacuum tube

B. Transistor

C. Integrated Circuit

D. Resistor

Answer: C

QUESTION 

Which programming language was used in the first generation computers?

A. Machine Level

B. High Level

C. Assembly

D. None of the above.

Answer: A

QUESTION 

 Which CPU is intended to operate at a speed of 66MHZ motherboard?

A. Intel 80486

B. Pentium 75

C. Pentium II 350

D. Pentium II 300

Answer: D

Explanation: CPU speed must be a multiple of  bus speed. A 66MHz bus speed times 4.5 gives 300 MHz.

Incorrect Answers

A: No 486 the processor had a bus speed of 66MHz: A 486 processors has a maximum bus speed of 33MHz.

B, C: Neither 75MHz nor 350MHz divided with 66MHz. CPU speed must be a multiple of bus speed.

The Pentium 75 operates at a 50 MHz bus speed.

 QUESTION 

A customer has a PC that supports the AMD Athlon XP 2100 + processor. What is the front-side bus speed of the customer's mainboard?

A. 133 MHz

B. 166 MHz

C. 200 MHz

D. 266 MHz

Answer: D

Front-side bus (FSB): A front-side bus is one that connects a computer processor (CPU) to Northbridge, which then connects to computer memory via a memory bus.

MHz: One MHz represents one million cycles per second. The speed of microprocessors, called clock speeds, is measured in megahertz.

QUESTION 

You are a technician at ABC Company. CEOs of ABC company want to migrate to 64-bit processors. Which of the following processors would you suggest to use? (Choose two)

A. AMD Opteron

B. Intel Itanium

C. Intel k64

D. AMD k64

Answer: A, B

QUESTION 

Who invented Pascaline?

A. Howard Aiken

B. Charles Babbage

C. Blaise Pascal

D. None of the above.

Answer: C

QUESTION 

A customer has a motherboard that has a slot A socket. Which processor can the customer use?

A. An AMD K7

B. An Intel MMX

C. An AMD Athlon

D. An Intel Pentium Coppermine

E. AMD K6

F. Intel Pentium 3

Answer: C

 QUESTION 

Which IRQ does the system timer use?

A. IRQ 0

B. IRQ 1

C. IRQ 2

D. IRQ 3

Answer: A

IRQ 0 System timer. This interrupt is used for the internal system timer. It is never available to peripherals or other devices.

IRQ Number Specific Usage Description

IRQ 0 System timer. This interrupt is used for the internal system timer. It is never available to peripherals or other devices.

IRQ 1 Keyboard. This lock is reserved for keyboard controllers. Even on devices without keyboards, this interruption is specifically for keyboard input.

IRQ 2 Cascade interrupts for IRQs 8-15. This interrupts cascades from the second interrupt controller to the first.

IRQ 3 Second serial port (COM2). The interrupt for the second serial port and often the default interrupt for the fourth serial port (COM4).

IRQ 4 First serial port (COM1). This interrupt is normally used for the first serial port. On devices that do not use a PS/2 mouse, this interrupt is almost always used by the serial mouse. This is also the default interrupt for the third serial port (COM3).

IRQ 5 Sound card. This interrupt is the first choice that most sound cards make when looking for an IRQ setting.

IRQ 6 Floppy disk controller. This interrupt is reserved for the floppy disk controller.

IRQ 7 First parallel port. This interrupt is normally reserved for the use of the printer. If a printer is not being used, this interrupt can be used for other devices that use parallel ports.

IRQ 8 Real-time clock. This interrupt is reserved for the system's real-time clock timer and can not be used for any other purpose.

IRQ 9 Open interrupt This interrupt is typically left open on devices for the use of peripherals.

IRQ 10 Open interrupt This interrupt is typically left open on devices for the use of peripherals.

IRQ 11 Open interrupt This interrupt is typically left open on devices for the use of peripherals.

IRQ 12 PS/2 mouse This interrupt is reserved for the PS/2 mouse on machines that use one. If a PS/2 mouse is not used, the interrupt can be used for other peripherals, such as a network card.

IRQ 13 Floating point unit/coprocessor This interrupt is reserved for the integrated floating-point unit. It is never available to peripherals or other devices as it is used exclusively for internal signaling.

IRQ 14 Primary IDE channel This interrupt is reserved for use by the primary IDE controller. On systems that do not use IDE devices, the IRQ can be used for another purpose.

IRQ 15 Secondary IDE channel This interrupt is reserved for use by the secondary IDE controller.

QUESTION 

 What should you do if the fan in the power supply stops working?

A. Change fan.

B. Change the case.

C. Lubricate the fan.

D. Change bearing

E. Change the power supply.

Answer: E

Explanation: The entire electricity supplier must be replaced. PC technicians should not try to repair power supplies.

QUESTION 

The electronic brain of a computer is known as which unit?

A. CPU

B. Memory

C. The Scanner

D. Microphone

Answer: A

QUESTION 

 Which is the main communication method from one PDA (Personal Assistant) to another PDA (Personal Digital Assistant)?

A. IR (Infrared)

B. USB

C. RS-232

D. IEEE 1394

Answer: A

Explanation: Infrared (IR) is a wireless mobile technology that is used for the communication of devices over short distances.

QUESTION 

What does the PC component normally come within PGA, SEDC, and SEP packaging?

A. Network Adapter

B. Motherboard

C. Memory

D. Processor

Answer: B

QUESTION 

Who invented the Vacuum tube?

A. Dr. Herman Hollerith

B. Dr. John Vincent Atanasoff

C. Howard Aiken

D. Lee Deforest

Answer: D

QUESTION 

What Color-Code is used for the mouse Port on a new PC that uses a DIN 6 Connector?

A. Red

B. Blue

C. Green

D. Purple

Answer: C

PS/2 green mini-din 6 pin for mouse

PS/2 purple mini-din 6 pins for keyboard

QUESTION 

Which device allows a laptop/notebook computer to connect and disconnect easily with external monitors, keyboards, mice, and other peripherals?

A. Expansion card

B. Port replicator

C. Fibe channel

D. Keyboard wedge

Answer: B

A Port replicator is a device that has common PC ports, such as serial and parallel ports, plugged into a notebook computer. The purpose of the device is to allow you to easily attach a portable computer to standard, non-portable devices such as printers and monitors.

For example, if you use a computer at home and at work, you can set both work areas with port replication. After that, you simply plug in your notebook computer for port replication at any location and you're ready to work.

Most notebook computer manufacturers offer port replication as an additional option. A Port replicator is similar to a docking station, but docking stations provide expansion boards and additional slots for connecting storage devices.

QUESTION 

Hard disks with ________ can improve PC performance.

A. Cold running temperature

B. Fast rotation speed

C. More storage capacity

D. Small footprints

Answer: B

They are faster.

QUESTION 

Which of the following devices is hot-swappable?

A. PS/2 mouse

B. AGP video card

C. CardBus network card

D. Parallel port printer

Answer: C

QUESTION 

Depending on the exhibition, which type of I / O bus should the card shown be used?

A. PCI

B. ISA

C. EISA

D. MicroChannel

Answer: A

QUESTION 

Which of the following would NOT be repaired onsite?

A. Virus infection

B. Faulty video card

C. File system errors

D. CRT high voltage supply

Answer: D

Explanation: Only a specialist should attempt to repair a monitor.

QUESTION 

What media would you use to send 800 MB to 2 GB files?

A. Diskette

B. CD-ROM

C. DVD-ROM

D. External Hard drive

Answer: C

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