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.

201.

Your customer tells you the print quality of their dot matrix printer is light then dark. Which of the following could cause the problem.
A. Paper slippage
B. Improper ribbon advancement
C. Paper thickness
D. Head position
E. None of the above
Answer» C. Paper thickness
Discussion
202.

Which standard govern parallel communications?
A. RS232
B. RS-232a
C. CAT 5
D. IEEE 1284
E. None of the above
Answer» E. None of the above
Discussion
203.

In laser printer technology, what happens during the conditioning stage?
A. The corona wire places a uniform positive charge on the paper
B. A uniform negative charge is placed on the photosensitive drum
C. A uniform negative charge is placed on the toner
D. All of the above
E. None of the above
Answer» C. A uniform negative charge is placed on the toner
Discussion
204.

The memory allocation scheme subject to "external" fragmentation is
A. segmentation
B. swapping
C. pure demand paging
D. multiple contiguous fixed partitions
E. None of the above
Answer» B. swapping
Discussion
205.

While running DOS on a PC, which command would be used to duplicate the entire diskette?
A. COPY
B. DISKCOPY
C. CHKDSK
D. TYPE
E. None of the above
Answer» C. CHKDSK
Discussion
206.

Memory
A. is a device that performs a sequence of operations specified by instructions in memory.
B. is the device where information is stored
C. is a sequence of instructions
D. is typically characterized by interactive processing and time-slicing of the CPU's time to allow quick response to each user.
E. None of the above
Answer» C. is a sequence of instructions
Discussion
207.

In virtual memory systems, Dynamic address translation
A. is the hardware necessary to implement paging
B. stores pages at a specific location on disk
C. is useless when swapping is used
D. is part of the operating system paging algorithm
E. None of the above
Answer» B. stores pages at a specific location on disk
Discussion
208.

Thrashing can be avoided if
A. the pages, belonging to the working set of the programs, are in main memory
B. the speed of CPU is increased
C. the speed of I/O processor is increased
D. all of the above
E. None of the above
Answer» B. the speed of CPU is increased
Discussion
209.

What is the name of the operating system for the laptop computer called MacLite?
A. Windows
B. DOS
C. MS-DOS
D. OZ
E. None of the above
Answer» E. None of the above
Discussion
210.

In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?
A. index addressing
B. indirect addressing
C. auto increment
D. auto decrement
E. None of the above
Answer» E. None of the above
Discussion
211.

What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?
A. Defined values
B. Fixed values
C. Default values
D. Special values
E. None of the above
Answer» D. Special values
Discussion
212.

Which of the following rules out the use of GO TO?
A. Flowchart
B. HIPO-DIAGRAMS
C. Nassi-Shneiderman diagram
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
213.

A system program that sets up an executable program in main memory ready for execution is
A. assembler
B. linker
C. loader
D. compiler
E. None of the above
Answer» D. compiler
Discussion
214.

Which of the following are loaded into main memory when the computer is booted?
A. internal command instructions
B. external command instructions
C. utility programs
D. word processing instructions
E. None of the above
Answer» B. external command instructions
Discussion
215.

In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list?
A. index addressing
B. indirect addressing
C. auto increment
D. auto decrement
E. None of the above
Answer» D. auto decrement
Discussion
216.

Fragmentation of the file system
A. occurs only if the file system is used improperly
B. can always be prevented
C. can be temporarily removed by compaction
D. is a characteristic of all file systems
E. None of the above
Answer» D. is a characteristic of all file systems
Discussion
217.

Resolution of externally defined symbols is performed by
A. Linker
B. Loader
C. Compiler
D. Assembler
E. None of the above
Answer» B. Loader
Discussion
218.

The Memory Address Register
A. is a hardware memory device which denotes the location of the current instruction being executed.
B. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
C. contains the address of the memory location that is to be read from or stored into.
D. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
E. None of the above
Answer» D. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
Discussion
219.

System generation:
A. is always quite simple
B. is always very difficult
C. varies in difficulty between systems
D. requires extensive tools to be understandable
E. None of the above
Answer» D. requires extensive tools to be understandable
Discussion
220.

What is the port number for NNTP?
A. 119
B. 80
C. 79
D. 70
Answer» B. 80
Discussion
221.

Interprocess communication
A. is required for all processes
B. is usually done via disk drives
C. is never necessary,
D. allows processes to synchronize activity
Answer» E.
Discussion
222.

Which of the following functions is(are) performed by the loader
A. allocate space in memory for the programs and resolve symbolic references between object decks
B. adjust all address dependent locations, such as address constants, to correspond to the allocated space.
C. physically place the machine instructions and data into memory.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
223.

User-Friendly Systems are:
A. required for object-oriented programming
B. easy to develop
C. common among traditional mainframe operating systems
D. becoming more common
E. None of the above
Answer» E. None of the above
Discussion
224.

Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?
A. 7 slots
B. 5 slots
C. 10 slots
D. 14 slots
Answer» B. 5 slots
Discussion
225.

Internet-like networks within an enterprise.
A. Intranets
B. Switching alternating
C. Inter organizational networks
D. Extranets
Answer» B. Switching alternating
Discussion
226.

Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS?
A. 10
B. 12
C. 120
D. 1200
E. None of the above
Answer» D. 1200
Discussion
227.

Carrier is
A. One or more conductors that serve 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 sections 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» C. the condition when two or more sections attempt to use the same channel at the same time
Discussion
228.

What can greatly reduce TCP/IP configuration problems?
A. WINS Server
B. WINS Proxy
C. DHCP Server
D. PDC
E. None of the above
Answer» D. PDC
Discussion
229.

Which of the following statements is correct for the use of packet switching?
A. the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individual link failure
B. the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
C. by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
230.

A front-end processor is
A. a user computer system
B. a processor in a large-scale computer that executes operating system instructions
C. a minicomputer that relieves main-frame computers at a computer centre of communications control functions
D. preliminary processor of batch jobs.
E. None of the above
Answer» D. preliminary processor of batch jobs.
Discussion
231.

ICMP (Internet Control Message Protocol) is
A. a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
B. a TCP/IP high level protocol for transferring files from one machine to another
C. a protocol used to monitor computers
D. a protocol that handles error and control messages
E. None of the above
Answer» E. None of the above
Discussion
232.

Which of the following device is used to connect two systems, especially if the systems use different protocols?
A. hub
B. bridge
C. gateway
D. repeater
E. None of the above
Answer» D. repeater
Discussion
233.

The synchronous modems are more costly than the asynchronous modems because
A. they produce large volume of data
B. they contain clock recovery circuits
C. they transmit the data with stop and start bits.
D. they operate with a larger bandwidth
E. None of the above
Answer» C. they transmit the data with stop and start bits.
Discussion
234.

Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?
A. UDP
B. VMTP
C. X.25
D. SMTP
E. None of the above
Answer» B. VMTP
Discussion
235.

The Internet Control Message Protocol (ICMP)
A. allows gateways to send error a control messages to other gateways or hosts
B. provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
C. reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
236.

Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.
A. Modem
B. Cable
C. Hub
D. Router
Answer» E.
Discussion
237.

The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver
A. cannot talk at once
B. can receive and send data simultaneously
C. can send or receive data one at a time
D. can do one way data transmission only
E. None of the above
Answer» C. can send or receive data one at a time
Discussion
238.

Which of the following technique is used for fragment?
A. a technique used in best-effort delivery systems to avoid endlessly looping packets
B. a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
C. one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
239.

What are the most commonly used transmission speeds in BPS used in data communication?
A. 300
B. 1200
C. 2400
D. 9600
E. None of the above
Answer» E. None of the above
Discussion
240.

What is the default subnet mask for a class C network?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.0.0
D. 255.255.255.0
E. None of the above
Answer» E. None of the above
Discussion
241.

You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?
A. 255.240.0.0
B. 255.248.0.0
C. 255.252.0.0
D. 255.254.0.0
E. 255.255.255.255
Answer» E. 255.255.255.255
Discussion
242.

Which of the following is used for modulation and demodulation?
A. modem
B. protocols
C. gateway
D. multiplexer
E. None of the above
Answer» B. protocols
Discussion
243.

Contention is
A. One or more conductors that serve 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» D. a collection of interconnected functional units that provides a data communications service among stations attached to the network
Discussion
244.

Avalanche photodiode receivers can detect hits of transmitted data by receiving
A. 100 photons
B. 200 photons
C. 300 photons
D. 400 photons
E. None of the above
Answer» C. 300 photons
Discussion
245.

When you ping the loopback address, a packet is sent where?
A. On the network
B. Down through the layers of the IP architecture and then up the layers again
C. Across the wire
D. through the loopback dongle
E. None of the above
Answer» C. Across the wire
Discussion
246.

Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?
A. FTP
B. SNMP
C. SMTP
D. RPC
E. None of the above
Answer» D. RPC
Discussion
247.

A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate?
A. 3 Kbps
B. 6 Kbps
C. 12 Kbps
D. 24 Kbps.
Answer» C. 12 Kbps
Discussion
248.

If you get both local and remote echoes, every character you type will appear on the screen
A. once
B. twice
C. three times
D. never
E. None of the above
Answer» C. three times
Discussion
249.

Which of the following addressing modes, facilitates access to an operand whose location is defined relative to the beginning of the data structure in which it appears?
A. ascending
B. sorting
C. index
D. indirect
E. None of the above
Answer» D. indirect
Discussion
250.

Fork is
A. the dispatching of a task
B. the creation of a new job
C. the creation of a new process
D. increasing the priority of a task
E. None of the above
Answer» D. increasing the priority of a task
Discussion