Chapter 2
A. Multiple Choice Questions:
1. Which of the following is an anti-virus program
(a) Norton
(b) Quick heal
(c) K7
(d) All of these
? (d) All of these
2. All of the following are examples of real security
and privacy threats except:
(a) Hackers
(b) Spam
(c) Virus
(d) Worm
? (a) Hackers
3. Trojan horses are very similar to virus in the
matter that they are computer programs that replicate
copies of themselves.
(a) True
(b) False
? (b) False
4._____________ monitors user activity on internet
and transmit that information in the background to
someone else.
(a) Malware
(b) Adware
(c) Spyware
(d) None of these
? (c) Spyware
5. Viruses are__________.
(a) Man made
(b) Naturally occur
(c) Machine made
(d) All of the above
? (a) Man made
6. Firewall is a type of ____________.
(a) Virus
(b) Worm
(c) Security threat
(d) None of the above
?(d) None of the above
7. Unsolicited commercial email is known as ____________.
(a) Spam
(b) Virus
(c) Malware
(d) Spyware
? (a) Spam
B. Match the following
(1) Virus (a) “Get Rich Quick” Scheme
(2) Worm (b) Cool Web Search
(3) Trojan Horse (c) I Love You
(4) Spyware (d) Jerusalem
(5) Spam (e) Wazzo
Answer
(1) Virus (a) Wazzo
(2) Worm (b) Jerusalem
(3) Trojan Horse (c) I Love You
(4) Spyware (d) Cool Web Search
(5) Spam (e) “Get Rich Quick” Scheme
C. Answer the following questions:
1. While working on the computer, you notice that the
system is working very slowly, files are corrupted,
default home page on the web browser has changed, lot
memory is consumed, and unnecessary pop-ups are coming.
What can be the probable reason?
Answer
The computer gets infected from Spyware. It monitors user
activity on the Internet and transmits that information
in the background to someone else. Spyware can also
gather information about e-mail addresses and even
passwords and credit card numbers. It also sends
information back to the spy ware’s home base via the
user’s Internet connection, thus it eats user’s internet
bandwidth.
2. You have very important data on your computer. How
will you ensure that this data remainssafe?
Answer
We can make our important data safe on computer through below steps:
1. Using Security software such as Norton antivirus,
Symantec etc.
2. Beware of email attachments form unknown sources
3. Do not randomly download material from websites
which has not been checked for security.
3. Never propagate hoax or chain emails.
4. Frequently back up important data and files.
5. Use encryption or sites that use encrypted data.
3. Differentiate between virus, worms and Trojan horses.
Answer
Virus- A computer virus is a program usually hidden with
in another simple program. It produces copies of itself
and inserts them into other programs or files, in turn
destroying the data and performing other malicious
actions. Computer viruses are never naturally
occurring; they are always man-made.
Worms- Worms are very similar to viruses in the manner
that they are computer programs that replicate copies
of themselves (usually to other computer systems via
network connections). Unlike viruses, worms exist as
separate entities; they do not attach themselves to
other files or programs.
Torjan Horses- A Trojan horse is a program that claims
to rid your computer of viruses but instead introduces
viruses into the system. The Trojan program does not
attach itself to the files like a virus nor replicate
itself like a worm but it does provide unauthorized
access to user’s computer. They are mostly spread
through internet downloads and online gaming programs.
They mostly affect the targeted computers.
4. How is a hacker different from a cracker?
Answer
Hackers were the gifted programmers who gain access to the systems or network to show case the security loopholes to the administrators.
Cracker was activist who had intentions of doing malicious activities. Crackers have an end goal of destroying data and network for personal monetary gains.
A. Multiple Choice Questions:
1. Which of the following is an anti-virus program
(a) Norton
(b) Quick heal
(c) K7
(d) All of these
? (d) All of these
2. All of the following are examples of real security
and privacy threats except:
(a) Hackers
(b) Spam
(c) Virus
(d) Worm
? (a) Hackers
3. Trojan horses are very similar to virus in the
matter that they are computer programs that replicate
copies of themselves.
(a) True
(b) False
? (b) False
4._____________ monitors user activity on internet
and transmit that information in the background to
someone else.
(a) Malware
(b) Adware
(c) Spyware
(d) None of these
? (c) Spyware
5. Viruses are__________.
(a) Man made
(b) Naturally occur
(c) Machine made
(d) All of the above
? (a) Man made
6. Firewall is a type of ____________.
(a) Virus
(b) Worm
(c) Security threat
(d) None of the above
?(d) None of the above
7. Unsolicited commercial email is known as ____________.
(a) Spam
(b) Virus
(c) Malware
(d) Spyware
? (a) Spam
B. Match the following
(1) Virus (a) “Get Rich Quick” Scheme
(2) Worm (b) Cool Web Search
(3) Trojan Horse (c) I Love You
(4) Spyware (d) Jerusalem
(5) Spam (e) Wazzo
Answer
(1) Virus (a) Wazzo
(2) Worm (b) Jerusalem
(3) Trojan Horse (c) I Love You
(4) Spyware (d) Cool Web Search
(5) Spam (e) “Get Rich Quick” Scheme
C. Answer the following questions:
1. While working on the computer, you notice that the
system is working very slowly, files are corrupted,
default home page on the web browser has changed, lot
memory is consumed, and unnecessary pop-ups are coming.
What can be the probable reason?
Answer
The computer gets infected from Spyware. It monitors user
activity on the Internet and transmits that information
in the background to someone else. Spyware can also
gather information about e-mail addresses and even
passwords and credit card numbers. It also sends
information back to the spy ware’s home base via the
user’s Internet connection, thus it eats user’s internet
bandwidth.
2. You have very important data on your computer. How
will you ensure that this data remainssafe?
Answer
We can make our important data safe on computer through below steps:
1. Using Security software such as Norton antivirus,
Symantec etc.
2. Beware of email attachments form unknown sources
3. Do not randomly download material from websites
which has not been checked for security.
3. Never propagate hoax or chain emails.
4. Frequently back up important data and files.
5. Use encryption or sites that use encrypted data.
3. Differentiate between virus, worms and Trojan horses.
Answer
Virus- A computer virus is a program usually hidden with
in another simple program. It produces copies of itself
and inserts them into other programs or files, in turn
destroying the data and performing other malicious
actions. Computer viruses are never naturally
occurring; they are always man-made.
Worms- Worms are very similar to viruses in the manner
that they are computer programs that replicate copies
of themselves (usually to other computer systems via
network connections). Unlike viruses, worms exist as
separate entities; they do not attach themselves to
other files or programs.
Torjan Horses- A Trojan horse is a program that claims
to rid your computer of viruses but instead introduces
viruses into the system. The Trojan program does not
attach itself to the files like a virus nor replicate
itself like a worm but it does provide unauthorized
access to user’s computer. They are mostly spread
through internet downloads and online gaming programs.
They mostly affect the targeted computers.
4. How is a hacker different from a cracker?
Answer
Hackers were the gifted programmers who gain access to the systems or network to show case the security loopholes to the administrators.
Cracker was activist who had intentions of doing malicious activities. Crackers have an end goal of destroying data and network for personal monetary gains.
