Previous Year SSC Computer Awareness MCQ Set- 18
171. Who designed the first electronic computer – ENIAC?
A. Van-Neumann
B. Joseph M. Jacquard
C. J. Presper Eckert and John W Mauchly
D. All of the above
Answer – C. J. Presper Eckert and John W Mauchly
Explanation-The first electronic computer, ENIAC (Electronic Numerical Integrator and Computer) was designed and built by J. Presper Eckert and John W Mauchly at the University of Pennsylvania, USA, between 1943 and 1945.
172. …………………. is the appearance of typed characters?
A. Size
B. Format
C. Point
D. Colour
Answer – B. Format
Explanation-Format refers to the appearance of typed characters, including factors such as font, size, style, and alignment.
173. A set of rules that governs data communication is called: [UP Lower Sub. (Mains) 2015]
A. Protocols
B. Standards
C. RFCS
D. None of these
Answer – A. Protocols
Explanation-A set of rules that govern data communication between devices is known as a protocol. Examples include TCP/IP, HTTP, FTP, and SMTP.
174. In Cyber Law terminology ‘DOS’ means [Uttarakhand PCS (Pre) 2012]
A. Denial of Service
B. Disk Operating System
C. Distant Operator Service
D. None of the above
Answer – A. Denial of Service
Explanation-In the context of cyber law, DOS stands for Denial of Service. It refers to a type of cyber attack in which an attacker attempts to overwhelm a website or network with traffic, causing it to become unavailable to users.
175. In the context of computer security, crackers are also known as [MPPCS (Pre) 2017]
A. black hat hackers
B. white hat hackers
C. elite hackers
D. script kiddie
Answer – A. black hat hackers
Explanation-In the context of computer security, a cracker refers to a hacker who uses their skills for malicious purposes. They are also known as black hat hackers.
176. In an analog computer, what happens to the input?
A. It is first converted to digital form
B. It is never converted to digital form
C. Output is displayed in digital form
D. All of the above
Answer –B. It is never converted to digital form
Explanation- In an analog computer, the input is represented by continuously varying physical quantities such as voltage, current, or resistance. It is not converted to digital form, as in a digital computer.
177. In the latest generation of computers, how are instructions executed?
A. Parallel only
B. Sequentially only
C. Both sequentially and parallel
D. All of the above
Answer – C. Both sequentially and parallel
Explanation-In the latest generation of computers, instructions are executed both sequentially and in parallel. This is known as pipelining, and it allows multiple instructions to be in different stages of execution at the same time.
178. Junk e-mail is also called [MPPCS (Pre) 2013]
A. Spoof
B. Spool
C. Sniffer script
D. Spam
Answer – D. Spam
Explanation-Junk e-mail is commonly known as spam. It refers to unsolicited messages that are sent to a large number of people for advertising or other purposes.
179. The word ‘Spam’ is related to which of the following subject? [MPPCS (Pre) 2016 Chhattisgarh PCS (Pre) 2005]
A. Computer
B. Art
C. Music
D. Sports
Answer – A. Computer
Explanation-The term “spam” originated in the context of computer science. It was coined to describe the unwanted messages that filled users’ inboxes in the early days of the internet.
180. Sending an identical e-mail message repeatedly to a particular
address by any abuser is called [Punjab PSC (Pre) 2018
Uttarakhand PCS (Pre) 2012]
A. E-mail Spoofing
B. E-mail Spamming
C. E-mail Bombing
D. None of the above
Answer –C. E-mail Bombing
Explanation-Sending a large number of identical email messages repeatedly to a particular address by an abuser is known as email bombing. This can overwhelm the recipient’s inbox and make it difficult to receive other messages
