Computer Awareness MCQs and Quiz for Banking, IBPS, RRB, RBI, SBI Exams
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2020-2021. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
51. Who among the following is known as the father of the DBMS?
[A] Van Neumann
[B] E.F.Codd
[C] Steve Jobs
[D] Bill Gates
Show Answer
Correct Answer: B [E.F.Codd]
Notes:
Dr E.F.Codd is also known to the world as the ‘Father of Database Management Systems’. He had propounded 12 rules which are in-fact 13 in number. The rules are numbered from zero to twelve. According to him, a DBMS is fully relational if it abides by all his twelve rules.
52. Who among the following is the father of MySQL?
[A] Charles Babbage
[B] Michael Wideneus
[C] Allen Jobs
[D] Madam Kama
Show Answer
Correct Answer: B [Michael Wideneus]
Notes:
Michael Widenius is known as the Father of MySQL. He is the main author of the original version of the open-source MySQL database and a founding member of the MySQL AB company.
53. Which of the following statements in SQL are considered as Data manipulation language?
[A] Update
[B] Insert
[C] Delete
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
In SQL, such statements as UPDATE, INSERT and DELETE are considered DML. Some people also lump the SELECT statement in the DML classification.
54. Which of the following is true about Fiber Distributed Data Interface?
[A] It is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network.
[B] It is based on the token ring protocol.
[C] It can extend in range up to 200 km.
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
Fiber Distributed Data Interface is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network that can extend in range up to 200 km. The FDDI protocol is based on the token ring protocol. An FDDI local area network can support thousands of users.
55. Which of the following LAN technologies uses a token-bus scheme?
[A] Netware
[B] Interface
[C] ARCNET
[D] Ethernet
Show Answer
Correct Answer: C [ARCNET]
Notes:
ARCNET is a LAN technology that uses a token-bus scheme for managing line sharing among the workstations and other devices connected on the LAN.ARCNET is one of four major LAN technologies, which also include Ethernet, token ring and FDDI.
56. Which of the following is the connectivity range of a Personal Area Network?
[A] 10 meters
[B] 7 meters
[C] 6 meters
[D] 9 meters
Show Answer
Correct Answer: A [10 meters]
Notes:
A Personal Area Network is smallest network which is very personal to a user.PAN has connectivity range up to 10 meters. PAN may include wireless computer keyboard and mouse, Bluetooth enabled headphones, wireless printers and TV remotes.
57. Which of the following networking devices forwards data packets between computer networks?
[A] Router
[B] Gateway
[C] Switch
[D] Hub
Show Answer
Correct Answer: A [Router]
Notes:
A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.
58. Which one of the following devices converts digital signal to analog signal and vice versa?
[A] Switch
[B] Router
[C] Modem
[D] Bridge
Show Answer
Correct Answer: C [Modem]
Notes:
Modem is a device that converts digital signal to analog signal as a modulator and analog signal to digital signal as a demodulator. Asynchronous modem uses start and stop bit for synchronization instead of clock.
59. What are the other names for a Network Interface Card?
[A] LAN adaptor
[B] Network adaptor
[C] Network Card
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A Network Interface Card is circuit board or a card that allows computers to communicate over a network via cables or wirelessly. Every network adaptor is assigned a unique 48-bit Media Access Control address, which is stored in ROM to identify themselves in a network.
60. Which of the following represents a sine wave?
[A] Non-periodic analog signal
[B] Periodic analog signal
[C] Periodic digital signal
[D] Non-periodic digital signal
Show Answer
Correct Answer: B [Periodic analog signal]
Notes:
The sine wave is the most fundamental form of a periodic analog signal. A periodic signal completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods.
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