a- Choose the correct answer and put it in the table below
1. …………….. are used
in denial of service attacks, typically against targeted web sites. A) Worm B)
Virus C) Trojan horse D) Zombie E) None of these
2. The CIA triad is often represented by which of the following? A)
Triangle Diagonal Ellipse Circle E) None of these
3. Which of the following malicious program do not replicate
automatically? A) Zombie B) Virus C) Worm D) Trojan Horse E) None of
these
4. A ………….. is a program that can infect other programs by
modifying them, the modification includes a copy of the virus program, which
can go on to infect other programs. A) Worm B) Trap doors C) Zombie D) Virus
E) None of these
5. Which of the following is independent malicious program that
need not any host program? A) Trap doors B) Worm C) Virus D) Trojan
horse E) None of these
6. In computer security, ……………………. means that computer system
assets can be modified only by authorized parities. A) Availability B)
Authenticity C) Integrity D) Confidentiality E) None of these
7. …………… programs can be used to accomplish functions indirectly
that an unauthorized user could not accomplish directly. A) Zombie B) Trojan
Horses C) Logic Bomb D) Worm E) None of these
8. The …………….. is code embedded in some legitimate program that is
set to “explode” when certain conditions are met. A) Logic Bomb B) Trojan horse
C) Trap doors D) Virus E) None of these
9. Which of the following represents the three goals of information
security? A) Prevention, detection, and response B) Confidentiality,
integrity, and availability C) People controls, process controls, and
technology controls D) Network security, PC security, and mainframe security E)
None of these
10. In computer security, …………………….. means that the information in
a computer system only be accessible for reading by authorized parities. A)
Authenticity B) Integrity C) Availability D) Confidentiality E) None of
these 1 2 3 4 5 6 7 8 9 10 D A C D B C B C B D
b- Define each of the following:
1. Information Security The protection of information and its
elements including systems, HW that use, store and transmit the information.
2. Encryption Convert the plaintext (original message) from
readable to unreadable message
3. Plaintext and Ciphertext (plaintext is readable message and
ciphertext is unreadable message)
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