Basic Computer Knowledge Fundamentals Questions and Answers MCQs Set - 6

1.

Which among the following is an appropriate binary conversion for the number 421 (which is of base 10)?

   A.) 10101010
   B.) 11010100
   C.) 110100101 
   D.) 010101010

Answer: Option 'C'

Given number 421 is of base 10 which means it is a decimal number. For decimal to binary conversion divide 421 by 2.

2.

Which cloud is a cloud computing environment that uses a mix of on-premises, private cloud and third-party, public cloud services with orchestration between the two platforms and it is particularly valuable for dynamic or highly changeable workloads? 

   A.) Dynamic Cloud
   B.) Sharing Cloud
   C.) Combined Cloud
   D.) Hybrid Cloud

Answer: Option 'D'

Hybrid cloud is a cloud computing environment which uses a mix of on-premises, private cloud and third-party, public cloud services with orchestration between the two platforms. By using a Hybrid approach, companies can maintain control of an internally managed private cloud while relying on the public cloud as needed.

3.

Which among the following type of operating system facilitates execution of multiple jobs by CPU in the same time virtually by instant switching and enabling many people, located at various terminals, to use a particular computer system at the same time?

   A.) Real Time
   B.) Batch Processing
   C.) Time Sharing
   D.) Distributed

Answer: Option 'C'

Time Sharing

4.

Which among the following is a language directly understood by CPU? 

   A.) C
   B.) Machine
   C.) Java
   D.) HTML

Answer: Option 'B'

CPU doesn’t understand the C++ language (or any high level programming language). All the High level language statements must be translated into machine code before they can be executed.

5.

Press _________ to move the insertion point to the Address box, or to highlight the URL in the Address box.

   A.) CTRL + S
   B.) ALT + A
   C.) SHIFT + TAB
   D.) ALT + D

Answer: Option 'D'

ALT + D

6.

Which of the following is a type of malware that collects information about users without their knowledge?

   A.) Spam
   B.) Freeware
   C.) Spyware
   D.) Trojan Horse

Answer: Option 'C'

Spyware

7.

Assembly is a _______ based low-level language replacing binary machine-code instructions, which are very hard to remember, it is the classic and uncontroversial example of a low level language.

   A.) Memory
   B.) High Level
   C.) Key
   D.) Mnemonic

Answer: Option 'D'

Assembly language is mnemonic based low level language. Mnemonics are short codes of assembly language which chosen to remind the programmer of the instructions of binary machine-code which are apparently which are very hard to remember, write down, or correct.

8.

Trackball is an example of a/an:

   A.) Programming device
   B.) Pointing device
   C.) Output device
   D.) Software device

Answer: Option 'B'

Trackball is an example of a pointing device (mouse).

9.

Which is a standard interactive and programming language for getting information from and updating a database?

   A.) dynamic data exchange
   B.) Structured Query Language
   C.) ASCII
   D.) Erlang programming language

Answer: Option 'B'

Structured Query Language

10.

Which of the following is the short cut key combination that can be used to type in bold in MS Excel? 

   A.) Ctrl + Down Arrow Key
   B.) Shift+Alt
   C.) Ctrl + 2
   D.) Ctrl + 4

Answer: Option 'C'

Ctrl + 2 is the shortcut key that can be used to type text in bold in Excel.

11.

Which of the following types of menu shows the further sub-choices? 

   A.) Reverse
   B.) Template
   C.) Scrolled
   D.) Pull-down

Answer: Option 'D'

Pull down menu shows further sub-choices.

12.

China now has more of the world's fastest supercomputers than other countries. Which among the following is a Chinese supercomputer?

   A.) BlueGene/Q system
   B.) Tianhe-2
   C.) Cray XC30
   D.) Fujitsu’s K

Answer: Option 'B'

Tianhe-2 is China’s Supercomputer. It was the fastest until its position being taken up by SunwayTiahu Light as the Fastest Supercomputer.

13.

Which among the following is the largest unit of storage?

   A.) Byte
   B.) Petabyte
   C.) Nibble
   D.) Bug

Answer: Option 'B'

Petabyte among the given options is the largest unit of storage, Nibble= 4Bits, Byte= 8Bits.
1 Petabyte = 1024 Terabyte

14.

Which physical layer devices can be used to enlarge the area covered by a single LAN segment?
1. Switch
2. NIC
3. Hub
4. Repeater
5. RJ45 transceiver

   A.) 1 only
   B.) 1 and 3
   C.) 3 and 4
   D.) 5 only

Answer: Option 'C'

A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network.  A hub is basically a multiport repeater. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations.

15.

Which of the following is a method of transferring information between digital devices, especially audio and video equipment?

   A.) USB
   B.) Integrated Drive Electronics (IDE)
   C.) Small Computer System Interface(SCSI)
   D.) Firewire

Answer: Option 'D'

Firewire

16.

Which of the following statements is true in the context of Watermark? 

   A.) A watermark can only be applied to a single page in a document
   B.) A watermark is not visible to viewers in a hard copy
   C.) A watermark is a ghost text
   D.) The colour of a watermark cannot be changed

Answer: Option 'C'

A watermark is a ghost text that is set behind the content of a page.

17.

Which is an open standard application programming interface (API) for accessing a database?

   A.) Universal Data Access
   B.) Open Database Connectivity
   C.) Command Line Interface
   D.) Open Data-Link Interface

Answer: Option 'B'

Open Database Connectivity

18.

Which among the following is not a function of Star Topology?

   A.) It facilitates centralized management of the network, through the use of the central computer.
   B.) Hub acts as a repeater for data flow.
   C.) Only that node is affected which has failed, rest of the nodes can work smoothly.
   D.) It transmits data only in one direction.

Answer: Option 'D'

It transmits data only in one direction.

19.

Which among the following is used to begin a formula in MS Excel?

   A.) %
   B.) =
   C.) @
   D.) #

Answer: Option 'B'

A formula in MS Excel begins with =

20.

While selecting multiple worksheets in Excel, the following key must also be used when clicking the sheet tab ________

   A.) Alt
   B.) Insert
   C.) Ctrl
   D.) Shift

Answer: Option 'C'

Ctrl


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