Computers and IT MCQs
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2024-2025. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
21. Which of the following devices has high bandwidth?
[A] Switch
[B] Router
[C] Modem
[D] Bridge
Show Answer
Correct Answer: A [Switch]
Notes:
A network switch is a computer networking device that connects devices on a computer network by using packet switching to receive, process, and forward data to the destination device.
22. Which of the following device is used to convert the native data into signal?
[A] OCR
[B] Modem
[C] Printer
[D] Monitor
Show Answer
Correct Answer: B [Modem]
Notes:
As data cannot be sent in its native form, it is necessary to convert it into signal. This is performed with the help of a transmitter such as modem.
23. What is the loss of signal’s energy due to resistance of the medium known as?
[A] Distortion
[B] Attenuation
[C] Noise
[D] None of the above
Show Answer
Correct Answer: B [Attenuation]
Notes:
Attenuation is the loss of signal’s energy due to resistance of the medium. It is not the same as Distortion which is the alteration of the signal due to different propagation speeds.
24. Which of these standards is used to define higher layer LAN protocols?
[A] IEEE 802.15
[B] IEEE 802.11
[C] IEEE 802.7
[D] IEEE 802.1
Show Answer
Correct Answer: D [IEEE 802.1]
Notes:
IEEE 802 standard is a family of IEEE standards dealing with local area networks and metropolitan area networks. IEEE 802.1 deals with higher layer LAN protocols.
25. What role does fibers play in Optical Fiber cables?
[A] Prevent loss of signals
[B] Provide immunity against electromagnetic interference
[C] Both a and b
[D] None
Show Answer
Correct Answer: C [Both a and b]
Notes:
Fibers are used instead of metal wires because signals travel along them with less loss. Also, fibers are immune to electromagnetic interference, a problem from which metal wires suffer excessively. In addition, Fibers are also used for illumination and imaging.
26. What is the bandwidth limit for CAT5e cable?
[A] upto 1 Mbps
[B] upto 2 Mbps
[C] upto 10 Mbps
[D] upto 1 Gbps
Show Answer
Correct Answer: D [upto 1 Gbps]
Notes:
CAT5e can support upto 1 Gbps speeds. It was made as an improvement over CAT5 cables which can support data transmission upto 100Mbps.
27. What do we call the process of limiting bandwidth consumption by users?
[A] Bandwidth Shaping
[B] Downstreaming
[C] Net Neutrality
[D] Walling
Show Answer
Correct Answer: A [Bandwidth Shaping]
Notes:
Bandwidth Shaping refers to a tool used by ISPs to limit or direct bandwidth consumption by users. Bandwidth shaping is also called bandwidth allocation or referred to as a bandwidth management tool.
28. Which of these internet connections is always connected to the internet?
[A] Dial-up
[B] ISDN
[C] DSL
[D] All of the above
Show Answer
Correct Answer: C [DSL]
Notes:
DSL stands for digital subscriber line. It is a type of internet connection which is always connected to the Internet. So, in this case, we don’t have to dialup to connect.
29. Which of these protocols is used for monitoring networks and network components?
[A] POP3
[B] TCP
[C] SNMP
[D] HTTP
Show Answer
Correct Answer: C [SNMP]
Notes:
SNMP stands for Simple Network Management Protocol. It is a TCP/IP protocol for monitoring networks and network components.
30. Which of these was the first browser for the classic Mac operating system?
[A] Samba
[B] Pumba
[C] Timothy
[D] Tyson
Show Answer
Correct Answer: A [Samba]
Notes:
MacWWW, also known as Samba, was the web browser launched in1992 which was meant to run on Macintosh computers. It was the first web browser for any non-Unix operating system.
