Explore topic-wise MCQs in Engineering.

This section includes 4320 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.

3001.

The output voltages of a PC power supply are in the form of _____ current.

A. AC
B. DC
C. amperage
D. resistive
E. trickle
Answer» C. amperage
3002.

After doing a low-level format, what would be the next step in configuring the hard drive in a system?

A. Format DOS partition
B. Install operating system
C. Configure DMA channel and back-up interrupt
D. Partition hard disk
E. None of the above
Answer» E. None of the above
3003.

In laser printing, there are six steps the printer follows. What comes between the conditioning phase and the developing phase?

A. transfer phase
B. writing phase
C. fusing phase
D. cleaning phase
E. All of the above
Answer» C. fusing phase
3004.

A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?

A. A second bad keyboard
B. The keyboard controller chip
C. The keyboard connector
D. The motherboard
E. None of the above
Answer» B. The keyboard controller chip
3005.

The standard IRQ for the floppy drive is?

A. 9
B. 6
C. 10
D. All of the above
E. None of the above
Answer» C. 10
3006.

When configuring is a network interface cards without jumpers or plug and play, what is used to set the IRQs?

A. DMA
B. CMOS
C. the OS
D. configuration software
E. None of the above
Answer» E. None of the above
3007.

MSD exe does not have information on:

A. cache
B. video
C. operation system
D. com ports
E. None of the above
Answer» B. video
3008.

Which is the easiest component to environmentally recycle?

A. Motherboards
B. CMOS batteries
C. Toner cartridges
D. Cathode ray tubes
E. None of the above
Answer» D. Cathode ray tubes
3009.

In inkjet technology the droplets of ink are deflected by?

A. Electrically Charge Plate
B. Multi directional nozzle
C. High pressure jets
D. All of the above
E. None of the above
Answer» B. Multi directional nozzle
3010.

To prevent toner from sticking to a laser printer's heat rollers, apply which of the following:

A. Alcohol
B. Oil
C. Ammonia
D. Beer or Jack Daniels
E. None of the above
Answer» C. Ammonia
3011.

You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

A. RFI
B. EMI
C. EXE
D. FYI
E. IOU
Answer» C. EXE
3012.

In which phase of the laser printing process is a positive charge placed on the paper to pull the toner from the print drum?

A. Writing
B. Transferring
C. Conditioning
D. All of the above
E. None of the above
Answer» C. Conditioning
3013.

Which component stores an electrical charge?

A. diode
B. rectifier
C. capacitor
D. resistor
E. transistor
Answer» D. resistor
3014.

What command is used to hang up a MODEM when using the "AT Command set"?

A. ATZ
B. ATD
C. ATR
D. ATH
E. None of the above
Answer» E. None of the above
3015.

RTS stands for:

A. ready to start
B. ready to switch
C. request to send
D. request to scan
E. ready to set
Answer» D. request to scan
3016.

What is the result of adding an IP address to the DNS server search order

A. It restricts browsing to that DNS server
B. It overrides the local systems IP address
C. It tells the DNS Server where the local system is located
D. It tells the local system where the DNS Server is located
E. None of the above
Answer» E. None of the above
3017.

RS-232 is a standard that applies to?

A. Parallel port
B. Serial port
C. Game port
D. All of the above
E. None of the above
Answer» C. Game port
3018.

Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?

A. defective modem
B. defective computer
C. software bug
D. bad phone line
E. virus
Answer» E. virus
3019.

How would you allow device drivers and TSR's to be loaded into Upper Memory Blocks ?

A. DOS=High
B. devicehigh=
C. loadhigh=
D. DOS=UMB
E. None of the above
Answer» E. None of the above
3020.

Which type of cable is most likely in use with rj-45 connectors?

A. 10base2
B. 10base5
C. 10baseT
D. 10baseFL
E. None of the above
Answer» D. 10baseFL
3021.

How many bits in a byte?

A. 16
B. 8
C. 255
D. 10
E. 2 to the 9th power
Answer» C. 255
3022.

Pick the correct choice for the 8088 CPU.

A. 16 bit word size, 8 bit data path
B. 8 bit word size, 8 bit data path
C. 16 bit word size, 16 bit data path
D. 4 bit word size, 8 bit data path
E. 8 bit word size, 16 bit data path
Answer» B. 8 bit word size, 8 bit data path
3023.

In which mode can 2 or more applications be stored in memory at the same time?

A. Segmented Mode
B. Unprotected Mode
C. Real Mode
D. Protected Mode
E. None of the above
Answer» E. None of the above
3024.

How does a parallel port communicate information to a peripheral device?

A. one bit at a time
B. 8 bytes at a time
C. one byte at a time
D. 16,555 bytes at a time
E. None of the above
Answer» D. 16,555 bytes at a time
3025.

You suspect a virus has entered your computer. What will not be affected by the virus?

A. CMOS
B. Boot sector
C. Floppy disks
D. Program files
E. None of the above
Answer» B. Boot sector
3026.

On PC power supplies, the wire attached to pin one is usually:

A. blue or red
B. blue or white
C. red or black
D. red or white
E. white or orange
Answer» F.
3027.

To find out how much memory is available, you could type _____

A. EMM
B. MEM
C. CHKDSK
D. MEMMAKER
E. None of the above
Answer» C. CHKDSK
3028.

When seeking to upgrade for a particular motherboard what do you need to know?

A. memory
B. hard drive
C. make & model
D. dimm
E. None of the above
Answer» D. dimm
3029.

You are installing an IDE hard drive that will be your boot drive. Which is the correct order of steps that need to be followed?

A. jumper properly, auto-detect(or configure manually) in CMOS, low level format, high level format, partition
B. jumper properly, auto-detect(or configure manually) in CMOS, partition, high level format with / s switch
C. jumper properly, partition, auto-detect(or configure manually in CMOS, high level format with /s switch
D. jumper properly, auto-detect in CMOS, regular format
E. jumper properly, partition, low level format, high level format
Answer» C. jumper properly, partition, auto-detect(or configure manually in CMOS, high level format with /s switch
3030.

What is the size of a sector?

A. 512 bytes
B. 256 bytes
C. 512 Kb
D. 1024 bytes
E. None of the above
Answer» B. 256 bytes
3031.

In which mode can two or more applications be stored in memory at the same time?

A. Segmented Mode
B. Unprotected Mode
C. Real Mode
D. Protected Mode
E. None of the above
Answer» E. None of the above
3032.

A protocol is a set of rules governing a time sequence of events that must take place

A. between peers
B. between modems
C. between an interface
D. across an interface
E. None of the above
Answer» B. between modems
3033.

The coming together of three technologies i.e. microelectronics, computing and communications has ushered in

A. information explosion
B. information technology
C. business revolution
D. educational upgradation
E. None of the above
Answer» C. business revolution
3034.

Terminals are used to

A. collect data from the physical system
B. provide information for the manager
C. communicate management decisions to the physical system
D. All of the above
E. None of the above
Answer» E. None of the above
3035.

During the laser printer's conditioning phase a uniform charge of _____ is placed on the photosensitive drum.

A. +1000 volt
B. +600 volts
C. -600 volts
D. -1000 volts
E. + 12 volts
Answer» D. -1000 volts
3036.

A dialog box with a bomb appears oh a Macintosh screen. What type of problem has occurred?

A. A RAM problem
B. A software problem
C. A ROM problem
D. An ADB problem
E. None of the above
Answer» C. A ROM problem
3037.

Current is measured in units of:

A. volts
B. amps
C. ohms
D. farads
E. diodes
Answer» C. ohms
3038.

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

A. modulation
B. demodulation
C. synchronizing
D. synchronizing
E. None of the above
Answer» C. synchronizing
3039.

An example of digital, rather than analog, communication is

A. DDD
B. DDS
C. WATS
D. DDT
E. None of the above
Answer» C. WATS
3040.

What is the loopback address?

A. 127.0.0.1
B. 255.0.0.0
C. 255.255.0.0
D. 255.255.255.255.0
E. None of the above
Answer» B. 255.0.0.0
3041.

How many OSI layers are covered in the X.25 standard?

A. two
B. three
C. seven
D. six
E. None of the above
Answer» C. seven
3042.

A modulator converts a _____ signal to a(n) _____ signal.

A. FSK; PSK
B. PSK; FSK
C. analog; digital
D. digital; analog
E. None of the above
Answer» E. None of the above
3043.

The birthplace of the World Wide Web is considered to be

A. the Department of Defense
B. CERN
C. ARPA
D. Netscape
E. None of the above
Answer» C. ARPA
3044.

An ROP would be attached to a

A. simplex channel
B. duplex channel
C. half duplex channel
D. full duplex channel
E. None of the above
Answer» B. duplex channel
3045.

The loss in signal power as light travels down the fiber is called

A. attenuation
B. propagation
C. scattering
D. interruption
E. None of the above
Answer» B. propagation
3046.

The basic Ethernet design does not provide

A. access control
B. addressing
C. automatic retransmission of a message
D. multiple virtual networks
E. None of the above
Answer» D. multiple virtual networks
3047.

Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate)

A. 2400 bands
B. 1200 bands
C. 4800 bands
D. 9600 bands.
Answer» B. 1200 bands
3048.

You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?

A. NBTSTAT
B. Performance Monitor
C. NETSTAT
D. Network Monitor
E. DHCP Management Console
Answer» E. DHCP Management Console
3049.

Bus is

A. one or more conductors that some as a common connection for a related group of devices
B. a continuous frequency capable of being modulated or impressed with a second signal
C. the condition when two or more stations attempt to use the same channel at the same time
D. a collection of interconnected functional units that provides a data communications service among stations attached to the network
E. None of the above
Answer» B. a continuous frequency capable of being modulated or impressed with a second signal
3050.

Which of the following medium is used for broadband local networks?

A. Coaxial cable
B. optic fiber
C. CATV
D. UTP
E. None of the above
Answer» D. UTP