Computer (Part-2)

Total Questions: 50

11. A message that tries to trick a person into providing information such as his social security number, bank account information or login username and password for a website is a type of malware called: [S.S.C. Online CHSL (T-1) 9.08.2021 (Shift-2)]

(a) Worms
(b) Phishing
(c) Macro Virus
(d) Zombie

Correct Answer: (b) Phishing

Solution:Phishing attacks are the practice of sending fraudulent communications that appear to come from a reputable source. It is usually performed through email. The goal is to steal sensitive data like credit card and login information or to install malware on the victim's machine. Phishing is a common type of cyber attack that everyone should learn about in order to protect themselves.

12. World Wide Web was invented by__________. [S.S.C. Online CHSL (T-1) 24.01.2017 (Shift-III)]

(a) John Barber
(b) Tim Berners Lee
(c) Alan Blumlein
(d) David Brewster

Correct Answer: (b) Tim Berners Lee

Solution:Tim Berners-Lee, a British scientist, invented the World Wide Web (WWW) in 1989 while working at CERN. The web was originally conceived and developed to meet the demand for automated information-sharing between scientists in universities and institutes around the world.

13. In Computers, what does ALU stand for? [S.S.C. Online CHSL (T-1) 7.02.2017 (Shift-1)]

(a) Advanced Logic Unit
(b) Accelerated Logic Unit
(c) Arithmetic Logic Unit
(d) Asymmetric Logic Unit

Correct Answer: (c) Arithmetic Logic Unit

Solution:In Computers, ALU stands for arithmetic Logic unit. An arithmetic logic unit (ALU) is a combinational digital electronic circuit that performs arithmetic and bitwise operations on integer binary numbers.

14. What is the short form of LAN? [S.S.C. Online Graduation Level (T-I) 8.08.2017 (Shift-I)]

(a) Line Area Network
(b) Linear Area Network
(c) Local Area Network
(d) Land Area Network

Correct Answer: (c) Local Area Network

Solution:The full form of LAN is local area network. A local area network (LAN) is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area.

15. What is the full form of WAN? [S.S.C. Online MTS (T-1) 20.09.2017 (Shift-2)]

(a) Wide Area Network
(b) Wide Access Network
(c) Work Area Network
(d) Work Access Network

Correct Answer: (a) Wide Area Network

Solution:The full form of WAN is wide area network. A wide area network (also known as WAN), is a large network of information that is not tied to a single location. WANS can facilitate communication, the sharing of information and much more between devices from around the world through a WAN provider.

16. Which of the following is/are correct? [S.S.C. Online C.P.O.S.I. (T-1) 2.07.2017 (Shift-1)]

I. GUI-Graphical User Interface
II. VDU-Visual Display Unit
III. ALU-All Logical Units

(a) I and II
(b) I and III
(c) III only
(d) II only

Correct Answer: (a) I and II

Solution:The full form of GUI is-Graphical User Interface. It is a type of user interface that enables people to interact with computers other than typing. Whereas the full form of VDU is - Visual Display Unit. It is related to output. The full form of ALU is Arithmetic Logic Unit.

17. In Networks, WEP stands for ___________ . [S.S.C. Online Graduation Level (T-1) 30.08.2016 (Shift-1)]

(a) Wireless Equivalent Privacy
(b) Wired Extra Privacy
(c) Wired Equivalent Privacy
(d) Wireless Embedded Privacy

Correct Answer: (c) Wired Equivalent Privacy

Solution:WEP stands for wired equivalent privacy. Wired Equivalent Privacy (WEP) is a security protocol for wireless networks which provides data confidentiality comparable to a traditional wired network. It was introduced in 1999. It provides wireless security through the use of an encryption key. It uses an old encryption method that is Rivest Cipher 4 (RC4). It uses 40-bit key and 24-bit random number.

18. What is PL/I? [C.P.O. S.I. 7.06.2016 (Shift-1)]

(a) Program language due
(b) Private Scale Integration
(c) Program of language
(d) Program Link One

Correct Answer: (c) Program of language

Solution:PL/I is a third-generation (3GL) programming language developed in the early 1960s as an alternative to assembler language (for low-level computer processing functions).

19. The complete form of 'IC' in electronics is : [S.S.C. Online Graduation Level (T-1) 1.09.2016 (Shift-1)]

(a) Internal circuit
(b) Independent circuit
(c) Integrated circuit
(d) Inbuilt circuit

Correct Answer: (c) Integrated circuit

Solution:The full form of IC is Integrated Circuit. After its invention in the year 1958, it started being used in computers in place of transistors. As a result, the Miniaturization of modern computers was possible only with integrated circuit chips.

20. In the following list of devices which device is used in network layer? [S.S.C. Online Graduation Level (T-1) 7.09.2016 (Shift-1)]

(a) Repeaters
(b) Router
(c) Application Gateway
(d) Switch

Correct Answer: (b) Router

Solution:The network layer is responsible for creating routing table, and based on routing table, forwarding of the input request. The Devices used in Network Layer is Router. A router is a switch like device that routes/ forwards data packets based on their IP addresses. Routers normally connect Local Area Network (LANS) and Wide Area Network (WANs) together and have a dynamically updating routing table based on which they make decisions on routing the incoming packets.

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