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Multiple Choice Quiz
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1

Which of the following statements about Trojan horses is true?
A)They are mails perpetually traveling from one e-mail account to another.
B)They are unsolicited commercial e-mails sent on a daily basis.
C)They scan large subnets looking for an open port in an attempt to send spam.
D)They seem to be harmless, while actually having a hidden functionality.
2

Which TCP port do spammers scan when they are looking for open SMTP servers?
A)21
B)25
C)42
D)50
3

Which of the following terms would best explain a sympathy mail that implores the receiver to send the same to 50 other recipients?
A)Hoax e-mail
B)Trojan horse
C)Virus
D)Worm
4

Which of the following statements about spam is NOT true?
A)It is less expensive than print advertisements.
B)It is unsolicited commercial e-mail.
C)It seems to be one thing, while actually having a more sinister purpose.
D)It sends a message to multiple recipients via automated programs.
5

Which of the following methods CANNOT be used to fight spam?
A)Being cautious about posting e-mail addresses on the Internet.
B)Blocking port TCP 25 from all hosts except designated mailers.
C)Installing spam filters either at the host or at the server level.
D)Updating antivirus software for the latest patches.
6

Which 40-bit symmetric encryption algorithms does S/MIME support?
A)RC2 and AES
B)RC2 and 3DES
C)RC5 and AES
D)RC5 and 3DES
7

Which of the following asymmetric encryption algorithms can PGP use to generate its own keys?
A)AES
B)Diffie-Hellman
C)ECC
D)ElGamal
8

PGP provides security against brute-force attacks using a CAST key length of ____ bits.
A)32
B)64
C)128
D)256
9

Which of the following statements is NOT a characteristic of PGP?
A)It generates its own keys using Diffie-Hellman or RSA.
B)It has plug-ins for many popular e-mail programs.
C)It supports 40-bit RC2 and 3DES for symmetric encryption.
D)It supports PKI provided by multiple vendors.
10

ILOVEYOU was a type of ____.
A)bug
B)hoax
C)Trojan horse
D)worm





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