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1. Viruses are ____.
A. Man made
B. Naturally occur
C. Machine made
D. All of these
ANSWER:A
SOLUTION: Man made
2. The first computer virus is ____.
A.The famous
B. HARLIE
C. PARAM
D. Creeper
ANSWER:D
SOLUTION: The first computer virus, called the ‘Creeper Virus’, was created in 1971 by computer engineer Robert Thomas.
3. Which of the following principle is violated if computer system is not accessible?
A. Confidentiality
B. Availability
C. Access control
D. Authentication
ANSWER:B
SOLUTION:Availability denotes the violation of principle if a computer is no more accessible.14 A
4. Which of the following is known as Malicious software?
A. Illegalware
B. Badware
C. Malware
D. Maliciousware
ANSWER:C
SOLUTION: Malware, short for malicious software, is a blanket term for viruses, worms, trojans and other harmful computer programs hackers use to wreak destruction and gain access to sensitive information.
5. Code red is a ____.
A. Word Processing Software
B. Antivirus
C. Virus
D. Photo Editing Software
ANSWER: C
SOLUTION: Code Red is a type of computer virus. Explanation: Explanation: The Code Red computer virus, which targets Microsoft servers, was originally identified on July 15, 2001. Nearly 300,000 servers are infected within a few days.
6. A computer requires its user to change passwords every month. This improves the ____
A. Performance
B. Reliability
C. Security
D. None of the above
ANSWER:C
SOLUTION:Regularly changing passwords improves security by reducing the risk of unauthorized access. Hackers are constantly evolving their tactics, so changing passwords regularly helps stay one step ahead.
7. Data encryption Standard (DES) was designed by ____.
A. Microsoft
B. Apple
C. IBM
D. None of these
ANSWER:C
SOLUTION: The Data Encryption Standard (DES) was designed by a team at IBM in the early 1970s.
8. There are _________ types of computer virus.
A. 5
B. 7
C. 10
D. 115
ANSWER:C
SOLUTION: There are a total of 10 types of virus. These are categorized based on their working and characteristics. These are System or Boot Sector Virus, Direct Action Virus, Resident Virus, Multipartite Virus, Polymorphic Virus, Overwrite Virus, Space-filler Virus, File infectors, Macro Virus, Rootkit virus.
9. Which of the following is not a type of virus?
A. Boot sector
B. Polymorphic
C. Multipartite
D. Trojans
ANSWER:D
SOLUTION: Trojans are not a type of virus. A computer virus is a type of malicious software that can change other computer programs when run to replicate itself.