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 represents the Transmission time?
[A] Message size/Bandwidth
[B] Message size *Bandwidth
[C] 1/2 (Message size/Bandwidth)
[D] 2 *(Message size/Bandwidth)
Show Answer
Correct Answer: A [Message size/Bandwidth]
Notes:
The transmission time, is the amount of time from the beginning until the end of a message transmission. It depends on the size of the message and the bandwidth of the channel. Transmission time =Message size / Bandwidth
22. Which of these has the highest transmission capacity?
[A] Twisted pair cables
[B] Coaxial cables
[C] Optical fibers
[D] All have the same
Show Answer
Correct Answer: C [Optical fibers]
Notes:
Optical fibers have around 26,000 times more transmission capacity than twisted-pair cable and Coaxial cables have around 80 times more transmission capacity than twisted pair cables.
23. In which year the Computer Science Network started functioning?
[A] 1978
[B] 1982
[C] 1981
[D] 1975
Show Answer
Correct Answer: C [1981]
Notes:
The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. The CSNET project was funded by the National Science Foundation for an initial three-year period from 1981 to 1984.
24. Which country funded the ARPANET project?
[A] United Kingdom
[B] United States of America
[C] France
[D] Russia
Show Answer
Correct Answer: B [United States of America]
Notes:
ARPANET was developed under the direction of the U.S. Advanced Research Projects Agency (ARPA) in 1969. It was the network that became the basis for the Internet.
25. In which year, SMTP was developed?
[A] 1974
[B] 1976
[C] 1980
[D] 1982
Show Answer
Correct Answer: D [1982]
Notes:
Simple Mail Transfer Protocol (SMTP) was developed in 1982. It is an Internet standard for email transmission. Extended SMTP is the protocol in widespread use today.
26. What is the address given to each computer on the Internet known as?
[A] Hardware number
[B] Device address
[C] IP address
[D] NET address
Show Answer
Correct Answer: C [IP address]
Notes:
Internet is a global network of computers each computer connected to the Internet must have a unique address. This address is known as an IP address.
27. Which port is used by SMTP?
[A] 22
[B] 53
[C] 25
[D] 69
Show Answer
Correct Answer: C [25]
Notes:
SMTP stands for Simple Mail Transfer Protocol. SMTP is a protocol that defines how mail messages are sent between hosts. It uses port number 25 to send messages.
28. Which of these protocols is used to querying and modifying directory services running over a network?
[A] NTP
[B] LDAP
[C] SNMP
[D] None of the above
Show Answer
Correct Answer: B [LDAP]
Notes:
Lightweight Directory Access Protocol, or LDAP is a networking protocol for querying and modifying directory services running over the network.
29. Which of these web browsers has the largest market share presently, across all platforms?
[A] Edge
[B] Chrome
[C] Safari
[D] Firefox
Show Answer
Correct Answer: B [Chrome]
Notes:
As per W3Counter’s browser stats for January 2019, Google Chrome has a 62% worldwide browser market share across all platforms.
30. Which was the final version of Internet Explorer before it got discontinued?
[A] 9
[B] 10
[C] 11
[D] 12
Show Answer
Correct Answer: C [11]
Notes:
Microsoft Internet Explorer version 11 was the eleventh and final version of the browser. It was officially released in 2013 for Windows 8.1.
