Deck 16: E-Mail and Instant Messaging

Question 1

One of the largest security problems with IM programs is ___________.

A)their inability to share files
B)the lack of support for encryption
C)the lack of support for video
D)the lack of support for hiding online presence

Answer 1

B

Question 2

Unsolicited commercial e-mail is known as __________.

A)hoax e-mail
B)worm
C)spam
D)spork

Answer 2

C

Question 3

What TCP port does IMAP use?

A)110
B)25
C)143
D)443

Answer 3

C

Question 4

A type of malicious code that appears to be a safe program but that actually has a hidden purpose is called a ____________.

A)virus
B)hoax
C)Trojan
D)worm

Question 5

PGP uses _______________ encryption.

A)symmetric
B)asymmetric
C)shared key
D)elliptical

Question 6

All of the following techniques help to secure IM communications EXCEPT which of the following?

A)Running a corporate IM server
B)Using a different user name
C)Avoiding file transfers
D)Using encryption

Question 7

One of the steps that the majority of system administrators running Internet e-mail servers have taken to reduce spam is to shut down ________.

A)spam filters
B)mail relaying
C)e-mail attachments
D)Outlook Express

Question 8

Which TCP port does POP3 use?

A)25
B)110
C)143
D)443

Question 9

Malicious code that is scripted to send itself to other users is known as a ________.

A)virus
B)worm
C)Trojan
D)logic bomb

Question 10

Two tools that can be used to encrypt e-mail are ___________________.

A)MIME/S and PGP
B)PGP and S/MIME
C)PSP and MIME/S
D)PGP and SIME

Question 11

Which of the following is NOT one of the three primary e-mail protocols?

A)SMTP
B)SNMP
C)P3OP
D)IMAP

Question 12

The two main places to filter spam are ________________.

A)at the host itself and the server
B)the firewall and the LAN
C)the proxy server and the LAN
D)the host and the firewall

Question 13

The Kurt Vonnegut commencement speech,the Neiman-Marcus Chocolate Chip Cookie Recipe,and the get-well e-mails to the dying boy are examples of __________.

A)social engineering
B)hoax e-mails
C)e-mail viruses
D)worms

Question 14

What was the primary reason for the spread of the ILOVEYOU worm.

A)Network firewalls failed.
B)Systems did not have the appropriate software patch.
C)Automatic execution such as Microsoft Outlook's preview pane.
D)Virus scan software was not updated.

Question 15

A worm is a type of virus that ____________.

A)is scripted to send itself to other systems
B)is designed to crawl in under a firewall
C)buries itself between the kernel and the application layer of the operating system
D)is passed through e-mails with a subject heading that has the word "worm" in it

Question 16

The first instant messaging program was ___________.

A)AOL Instant Messenger
B)Yahoo Instant Messenger
C)MSN Instant Messenger
D)Linux Instant Messenger

Question 17

What TCP port does SMTP use?

A)25
B)110
C)143
D)443

Question 18

SubSeven and Back Orifice are examples of what kinds of malicious code?

A)Virus
B)Hoax
C)Worm
D)Trojan

Question 19

One of the ways spam is able to propagate is by taking advantage of servers that will accept e-mail from anyone;these are known as ___________.

A)open servers
B)server relays
C)open relays
D)relay servers

Question 20

Securing e-mail is something that must be done by

A)Networking administrators
B)Security administrators
C)Outlook express
D)Users

Question 21

_______________ and _______________ are two very popular methods of encrypting e-mail.

Question 22

The trends show that e-mail hoaxes are being thwarted due to new technology.

Question 23

_______________ e-mails travel from user to user because of the compelling story contained in them.

Question 24

Most instant messaging programs natively support encryption.

Question 25

A(n)_______________ program appears to be safe,but actually has a sinister hidden purpose.

Question 26

S/MIME is a secure implementation of the MIME protocol.

Question 27

Hoax e-mails can have a real impact on bandwidth and productivity due to the distraction that can be caused by them.

Question 28

The _______________ was the first list to utilize the concept of using DNS records to filter or "blackhole" spam-sending IP addresses and domains.

Question 29

Viruses can exist independent of a file,whereas worms require a file to infect.

Question 30

_______________ refers to an unsolicited commercial e-mail whose purpose is the same as the junk mails in a physical mailbox;it tries to persuade the recipient buy something.

Question 31

Unsolicited commercial e-mail is referred to as a hoax e-mail.

Question 32

Viruses started as simple self-replicating program that spread via the transfer of floppy disks.

Question 33

_______________ is the method by which mail is sent to the server as well as from server to server.

Question 34

SMTP uses TCP port 110.

Question 35

_______________ started with mailbox programs on early time sharing machines,allowing researchers to leave messages for others using the same machine.

Question 36

Viruses that are scripted to send themselves to other users are known as ______________.

Question 37

_______________ code is often sent through e-mail,and performs something harmful to the computer it runs in

Question 38

Names not on a DNS blacklist get filtered out,and those messages are not received.

Question 39

E-mail traffic is sent in plaintext by default and can be read easily by anyone who intercepts it.

Question 40

A(n)_______________ is a mail server that will accept mail from everyone.

Question 41

What are two possible solutions to security threats caused by viruses?

Question 42

Briefly give two examples of how hoax e-mails work.

Question 43

What is a basic description of a Trojan horse?

Question 44

Explain some of the problems with PGP.

Question 45

What is the best way to deal with e-mail hoax?

Question 46

Explain some of the problems with S/MIME's implementation.

Question 47

Define spam.