1.
Who among the following is/were inventor of transistors?
Answer: Option 'D'
Walter Houser Brattain was an American physicist, along with John Bardeen and William Shockley, invented the point-contact transistor.
2.
Trackball is an example of a/an ______.
Answer: Option 'B'
Trackball is an example of a pointing device (mouse).
3.
Which of the following is a term for the process of trading goods over the Internet?
Answer: Option 'D'
Electronic commerce, commonly written as e-commerce or e-commerce, is the trading or facilitation of trading in products or services using computer networks, such as the Internet or online social networks.
4.
Here is an infix expression: 3 + 13*(60*376-12). The maximum number of symbols that will appear on the stack AT ONE TIME during the conversion of infix to postfix notation of this expression is?
Answer: Option 'D'
4
5.
Computers use the ____________ language to process data.
Answer: Option 'B'
binary
6.
What does the computer Motherboard contains that houses setting configurations and is powered by the onboard battery?
Answer: Option 'A'
The CMOS is a physical part of the motherboard: it is a memory chip that houses setting configurations and is powered by the on board battery. The CMOS is reset and loses all custom settings in case the battery runs out of energy. Additionally, the system clock resets when the CMOS loses power.
7.
Which of the following HTML tags is used to create a horizontal line on a Web page?
Answer: Option 'A'
In HTML, you can create a horizontal line on a Web page by using the <hr>tag. The purpose of the <hr> tag is to separate paragraphs or sections on a Web page.
8.
________ controls the way in which the computer system functions and provides a means by which users can interact with the computer.
Answer: Option 'C'
The operating system
9.
Which among the following is a Super computer series developed by Indian scientists?
Answer: Option 'A'
PARAM is a series of supercomputers designed and assembled by the Centre for Development of Advanced Computing (C-DAC) in Pune, India. The latest machine in the series is the PARAM Kanchenjunga.
10.
The subset of the super key is a candidate key under what condition?
Answer: Option 'A'
No proper subset is a super key
11.
Which program, installed on the user’s computer help him to communicate or send request on the network?
Answer: Option 'C'
A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the World Wide Web.
12.
The two ways to arrange multiple windows on the desktop are:
Answer: Option 'A'
cascade and tile are two ways to arrange multiple windows on the desktop.
13.
______ key combination is used to reverse the last Undo.
Answer: Option 'D'
Ctrl+A- to select all
Ctrl+C- to copy
Ctrl+W- to close currently focused tab/window
Ctrl+Y- used to reverse last undo
Ctrl+Z- to reverse last action i.e. to perform undo operation
14.
Verizon Communications on July 2016, announced plans to acquire Yahoo for $4.8 billion in cash. Yahoo (www.yahoo.com) is a _________.
Answer: Option 'D'
A Web portal is a specially designed website that often serves as the single point of access for information.
The first Web portals were online services, such as AOL, that provided access to the Web, but by now most of the traditional search engines have transformed themselves into Web portals to attract and keep a larger audience.
15.
Which type of system can learn and adjust to new circumstances by themselves?
Answer: Option 'D'
Neural networks can adjust to new circumstances by themselves.
16.
All of the following are examples of real security and privacy risks EXCEPT:
Answer: Option 'A'
17.
What is Telnet?
Answer: Option 'C'
Telnet is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
18.
Which among the following is the extension of font file?
Answer: Option 'C'
The file extension for a font file is .fnt
19.
In MS-Word, a ruler can help to perform which of the following actions?
Answer: Option 'D'
All the given activities can be performed by using a ruler in MS Word.
20.
___________ is a kind of cyber-attack that involves hackers taking control of a computer system and blocking access to it until a certain amount of money is paid.
Answer: Option 'B'
Ransomware is a type of malware that prevents or limits users from accessing their system, either by locking the system's screen or by locking the users' files unless a ransom is paid. Wanna Decryptor, also known as WannaCry or wcry, is a specific ransomware program that locks all the data on a computer system and leaves the user with only two files: instructions on what to do next and the Wanna Decryptor program itself. When the software is opened it tells computer users that their files have been encryted, and gives instructions on how to buy it, and provides a Bitcoin address to send it to.