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The first PC virus was developed in _______.
- a)1982
- b)1984
- c)1985
- d)1971
- e)1988
Correct answer is option 'D'. Can you explain this answer?
The first PC virus was developed in _______.
a)
1982
b)
1984
c)
1985
d)
1971
e)
1988
|
Kabir Verma answered |
In 1986, the 5.2" floppy discs were first infected by Brain, the first computer virus. According to Secure list, two brothers who owned a computer store in Pakistan, Basit and Amjad Farooq Alvi, were responsible.
Which of the following computer viruses hijack the system when it boots and deletes data?- a)Trojan
- b)System infectors
- c)Stealth virus
- d)Boot infectors
- e)None of the above
Correct answer is option 'C'. Can you explain this answer?
Which of the following computer viruses hijack the system when it boots and deletes data?
a)
Trojan
b)
System infectors
c)
Stealth virus
d)
Boot infectors
e)
None of the above
|
Harshitha Menon answered |
Stealth viruses are computer viruses that are specifically designed to hide their presence on an infected system. They are known for their ability to camouflage themselves and avoid detection by antivirus software. These viruses often infect the boot sector of a computer's hard drive, which allows them to take control of the system as soon as it boots up.
Here is a detailed explanation of each of the given options:
a) Trojan: Trojans are a type of malicious software that disguise themselves as legitimate programs or files. Unlike stealth viruses, Trojans do not typically infect the boot sector or delete data upon system boot. Instead, they often perform actions such as stealing personal information, installing additional malware, or providing unauthorized access to the infected computer.
b) System infectors: System infectors are viruses that infect executable files on a system, including both program files and system files. While these viruses can cause damage to the infected files, they do not necessarily hijack the system upon booting or delete data.
c) Stealth virus: As mentioned earlier, stealth viruses are designed to hide their presence on an infected system. They often infect the boot sector of a computer's hard drive, allowing them to gain control of the system as soon as it boots up. Some stealth viruses may also delete or corrupt data on the system, depending on their specific payload.
d) Boot infectors: Boot infectors, also known as boot sector viruses, infect the boot sector of a computer's hard drive or other bootable media. These viruses alter the boot process, allowing them to execute their code before the operating system loads. While boot infectors can cause various types of damage, including data deletion, not all boot infectors necessarily delete data.
Therefore, the correct answer to the question is option 'C' - Stealth virus. Stealth viruses are designed to hijack the system upon booting and have the capability to delete data.
Here is a detailed explanation of each of the given options:
a) Trojan: Trojans are a type of malicious software that disguise themselves as legitimate programs or files. Unlike stealth viruses, Trojans do not typically infect the boot sector or delete data upon system boot. Instead, they often perform actions such as stealing personal information, installing additional malware, or providing unauthorized access to the infected computer.
b) System infectors: System infectors are viruses that infect executable files on a system, including both program files and system files. While these viruses can cause damage to the infected files, they do not necessarily hijack the system upon booting or delete data.
c) Stealth virus: As mentioned earlier, stealth viruses are designed to hide their presence on an infected system. They often infect the boot sector of a computer's hard drive, allowing them to gain control of the system as soon as it boots up. Some stealth viruses may also delete or corrupt data on the system, depending on their specific payload.
d) Boot infectors: Boot infectors, also known as boot sector viruses, infect the boot sector of a computer's hard drive or other bootable media. These viruses alter the boot process, allowing them to execute their code before the operating system loads. While boot infectors can cause various types of damage, including data deletion, not all boot infectors necessarily delete data.
Therefore, the correct answer to the question is option 'C' - Stealth virus. Stealth viruses are designed to hijack the system upon booting and have the capability to delete data.
A self-replicating software on a computer called a ___________ has code that specifically copies itself into other executable codes or programs.- a)Spam
- b)Virus
- c)Worm
- d)Cracker
- e)Topology
Correct answer is option 'B'. Can you explain this answer?
A self-replicating software on a computer called a ___________ has code that specifically copies itself into other executable codes or programs.
a)
Spam
b)
Virus
c)
Worm
d)
Cracker
e)
Topology
|
Rohan Sengupta answered |
A self-replicating software on a computer called a virus has code that specifically copies itself into other executable codes or programs.
Junk E-mail is also called as __________.- a)Spool
- b)Spoof
- c)Spam
- d)Hack
- e)None of these
Correct answer is option 'C'. Can you explain this answer?
Junk E-mail is also called as __________.
a)
Spool
b)
Spoof
c)
Spam
d)
Hack
e)
None of these
|
Nikita Singh answered |
Email spam, also known as junk email, refers to unsolicited email messages, usually sent in bulk to a large list of recipients.
Software with malicious content, such as viruses, worms and trojan horses, is referred to as _______.- a)Trojan
- b)Malware
- c)Firewall
- d)Scareware
- e)Spyware
Correct answer is option 'B'. Can you explain this answer?
Software with malicious content, such as viruses, worms and trojan horses, is referred to as _______.
a)
Trojan
b)
Malware
c)
Firewall
d)
Scareware
e)
Spyware
|
|
Rohan Sengupta answered |
The term "malware" refers to a variety of malicious software versions, such as viruses, ransomware, and spyware. Malware, a shorthand for malicious software, is often composed of code created by cyber attackers to seriously harm systems and data or gain unauthorized access to a network.
You ought to install __________ on your computer to protect it from viruses.- a)Disk Cleanup
- b)Backup Wizard
- c)Antivirus Software
- d)Disk Defragmenter
- e)None of these
Correct answer is option 'C'. Can you explain this answer?
You ought to install __________ on your computer to protect it from viruses.
a)
Disk Cleanup
b)
Backup Wizard
c)
Antivirus Software
d)
Disk Defragmenter
e)
None of these
|
|
Kabir Verma answered |
Installing antivirus software, such as Bitdefender, Norton, or Kaspersky, is the best approach to protect against malware. Malware may be stopped from being installed by antivirus software and it can also be removed from your computer.
A __________ is a group of computer programs, usually malicious, that is used to gain unauthorized access to computers or parts of its software. They frequently conceal their own or other programs' presence.- a)Rootkit
- b)Trojan
- c)Toolkit
- d)Malware
- e)Spyware
Correct answer is option 'A'. Can you explain this answer?
A __________ is a group of computer programs, usually malicious, that is used to gain unauthorized access to computers or parts of its software. They frequently conceal their own or other programs' presence.
a)
Rootkit
b)
Trojan
c)
Toolkit
d)
Malware
e)
Spyware
|
|
Kavya Saxena answered |
A rootkit is a group of computer programs, usually malicious, that is used to gain unauthorized access to computers or parts of its software. They frequently conceal their own or other programs' presence.
______ are frequently intended to cause harm and are frequently sent to a PC as an email attachment.- a)Portals
- b)Spams
- c)Computer Viruses
- d)Email messages
- e)All the above
Correct answer is option 'C'. Can you explain this answer?
______ are frequently intended to cause harm and are frequently sent to a PC as an email attachment.
a)
Portals
b)
Spams
c)
Computer Viruses
d)
Email messages
e)
All the above
|
|
Kabir Verma answered |
Computer viruses are frequently intended to cause harm and are frequently sent to a PC as an email attachment.
A private communication, such as a phone call, instant message, videoconference, or fax transmission, can be intercepted in real-time without the intended recipient's knowledge and is known as _______________.- a)Replay
- b)eavesdropping
- c)patches
- d)payloads
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
A private communication, such as a phone call, instant message, videoconference, or fax transmission, can be intercepted in real-time without the intended recipient's knowledge and is known as _______________.
a)
Replay
b)
eavesdropping
c)
patches
d)
payloads
e)
None of these
|
|
Nikita Singh answered |
Private communication, such as a phone call, instant message, videoconference, or fax transmission, can be intercepted in real-time without the intended recipient's knowledge and is known as eavesdropping.
VIRUS stands for ________.- a)Vital Information Resources Under Siege
- b)Viral Important Record User Searched
- c)Very Interchanged Result Until Source
- d)Very Intelligent Resources Under Search
- e)None of the above
Correct answer is option 'A'. Can you explain this answer?
VIRUS stands for ________.
a)
Vital Information Resources Under Siege
b)
Viral Important Record User Searched
c)
Very Interchanged Result Until Source
d)
Very Intelligent Resources Under Search
e)
None of the above
|
|
Kabir Verma answered |
Vital Information Recourse Under Siege is referred to as VIRUS. A computer virus is essentially harmful software, sometimes known as "malware," which multiplies itself after infecting your system by altering other software and adding its code.
A ___________ is someone who utilizes their knowledge to break into someone else's computers to steal information or do harm.- a)Spammer
- b)Phisher
- c)Hacker
- d)Instant Messenger
- e)All the above
Correct answer is option 'C'. Can you explain this answer?
A ___________ is someone who utilizes their knowledge to break into someone else's computers to steal information or do harm.
a)
Spammer
b)
Phisher
c)
Hacker
d)
Instant Messenger
e)
All the above
|
|
Kavya Saxena answered |
A hacker is someone who utilizes their knowledge to break into someone else's computers to steal information or do harm.
___________ is a security mechanism used to determine user/client privileges or access levels related to system resources, including computer programs, files, services, data and application features.- a)Authentication
- b)Automation
- c)Encryption
- d)Decryption
- e)Authorisation
Correct answer is option 'E'. Can you explain this answer?
___________ is a security mechanism used to determine user/client privileges or access levels related to system resources, including computer programs, files, services, data and application features.
a)
Authentication
b)
Automation
c)
Encryption
d)
Decryption
e)
Authorisation
|
|
Rohan Sengupta answered |
Authorization is a security mechanism used to determine user/client privileges or access levels related to system resources, including computer programs, files, services, data, and application features.
_____________is a type of fraud in which a perpetrator uses email or other forms of contact to pose as a reliable organization or individual.- a)Spoofing
- b)Phishing
- c)Spyware
- d)Firewall
- e)Cracker
Correct answer is option 'B'. Can you explain this answer?
_____________is a type of fraud in which a perpetrator uses email or other forms of contact to pose as a reliable organization or individual.
a)
Spoofing
b)
Phishing
c)
Spyware
d)
Firewall
e)
Cracker
|
|
Rohan Sengupta answered |
Phishing is a type of fraud in which a perpetrator uses email or other forms of contact to pose as a reliable organization or individual.
________ are people's attempts to trick you into giving them your personal information by pretending to be someone else.- a)Phishing trips
- b)Computer viruses
- c)Spyware scams
- d)Viruses
- e)Phishing scams
Correct answer is option 'E'. Can you explain this answer?
________ are people's attempts to trick you into giving them your personal information by pretending to be someone else.
a)
Phishing trips
b)
Computer viruses
c)
Spyware scams
d)
Viruses
e)
Phishing scams
|
|
Kavya Saxena answered |
Phishing scams are people's attempts to trick you into giving them your personal information by pretending to be someone else.
________________ is a piece of software made to keep track of (log) each keystroke made on the computer it is running on.- a)Keylogger
- b)Worm
- c)Virus
- d)Cracker
- e)Trojan
Correct answer is option 'A'. Can you explain this answer?
________________ is a piece of software made to keep track of (log) each keystroke made on the computer it is running on.
a)
Keylogger
b)
Worm
c)
Virus
d)
Cracker
e)
Trojan
|
|
Nikita Singh answered |
Keylogger is a piece of software made to keep track of (log) each keystroke made on the computer it is running on.
Installing a ______________ is a good way to safeguard yourself from computer hacker attacks.- a)Firewall
- b)Trojan
- c)Malware
- d)Spyware
- e)Mailer
Correct answer is option 'A'. Can you explain this answer?
Installing a ______________ is a good way to safeguard yourself from computer hacker attacks.
a)
Firewall
b)
Trojan
c)
Malware
d)
Spyware
e)
Mailer
|
|
Kavya Saxena answered |
Installing a firewall is a good way to safeguard yourself from computer hacker attacks.
_______ is the process of scrambling codes.- a)Authentication
- b)Automation
- c)Encryption
- d)Decryption
- e)Authorisation
Correct answer is option 'C'. Can you explain this answer?
_______ is the process of scrambling codes.
a)
Authentication
b)
Automation
c)
Encryption
d)
Decryption
e)
Authorisation
|
|
Rohan Sengupta answered |
The scrambling of code is known as encryption.
________ are upgrades to the software and operating systems (OS) that fix security flaws in a program or product.- a)Fixes
- b)Trojan
- c)Patches
- d)Logic Bomb
- e)Firewall
Correct answer is option 'C'. Can you explain this answer?
________ are upgrades to the software and operating systems (OS) that fix security flaws in a program or product.
a)
Fixes
b)
Trojan
c)
Patches
d)
Logic Bomb
e)
Firewall
|
|
Nikita Singh answered |
Patches are upgrades to the software and operating systems (OS) that fix security flaws in a program or product.
Chapter doubts & questions for Computer Security - Computer Awareness for Competitive Exams 2025 is part of Bank Exams exam preparation. The chapters have been prepared according to the Bank Exams exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Bank Exams 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
Chapter doubts & questions of Computer Security - Computer Awareness for Competitive Exams in English & Hindi are available as part of Bank Exams exam.
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Computer Awareness for Competitive Exams
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