CH 19-21 POP/IMAP/SSH QUESTIONS

Question 1

Mail is sent using the protocol abbreviated ___________ whereas mail is received using either the protocol abbreviated ___________ or the protocol abbreviated ___________.

Answer 1

Mail is sent using the protocol abbreviated _SMTP__ whereas mail is received using either the protocol abbreviated POP or the protocol abbreviated IMAP.

Question 2

SMTP stands for:
 A)  Simple Mail Transfer Protocol
 B)  Send Mail Transfer Protocol
 C)  Secure Mail Transfer Protocol
 D)  Simple Mail Transmission Protocol

Answer 2

A) Simple Mail Transfer Protocol

Question 3

Match the port to the protocol
_______ 143 1. SMTP
_______ 110 2. POP
_______ 25 3. IMAP

Answer 3

_IMAP__ 143 1. SMTP
_POP___ 110 2. POP
_SMTP__ 25 3. IMAP

Question 4

Which is NOT a valid SMTP command
 A)  HELO
 B)  BYE
 C)  MAIL FROM
 D)  DATA

Answer 4

B) BYE

Question 5

To check to see if postfix is running properly you can enter the \_\_\_\_\_\_\_\_\_\_\_\_ command.
 A)  postfix check
 B)  chkdisk postfix
 C)  chkconfig postfix
 D)  yum check postfix

Answer 5

A) postfix check

Question 6

Email is always encrypted to send and received.
True
False

Answer 6

False

Question 7

Which of these is not a component of the SMTP server architecture?
 A)  MTA
 B)  MUA
 C)  MBA
 D)  MDA

Answer 7

C) MBA

Question 8

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ is the practice of restricting emails from certain domains because they are believed to be sending large amounts of spam.
 A)  Redlisting
 B)  Blacklisting
 C)  Whitelisting
 D)  Greylisting

Answer 8

B) Blacklisting

Question 9

The \_\_\_\_\_\_ is the SMTP component that physically moves mail between servers
 A)  MBA
 B)  MTA
 C)  MDA
 D)  MUA

Answer 9

B) MTA

NEED TO VERIFY ANSWER

Question 10

You cannot have both POP and IMAP running on the same server at the same time.
True
False

Answer 10

False

Question 11

SSH stands for:
 A)  Socket Shell
 B)  Secure Service
 C)  Simple Shell
 D)  Secure Shell

Answer 11

D) Secure Shell

Question 12

SSH relies on a technology called \_\_\_\_\_\_\_\_\_ cryptography.
 A)  Private-key
 B)  Fixed-key
 C)  Open-key
 D)  Public-key

Answer 12

D) Public-key

Question 13

SSH was designed to replace the insecure \_\_\_\_\_\_\_\_\_ protocol.
 A)  Telnet
 B)  ICMP
 C)  HTTP
 D)  SMTP

Answer 13

A) Telnet

Question 14

OpenSSH is a common SSH implementation for Linux.
True
False

Answer 14

True

Question 15

You can tunnel traffic over SSH to create a pseudo-VPN (virtual private network).
True
False

Answer 15

True