C. Telnet D. SNMP Answer: A Explanation:
Post Office Protocol Version: 3 makes use of this port for client to server communication. Incorrect answers:
B: FTP makes use of port 20 C: Telnet makes use of port 23 D: SNMP makes use of port 162 References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 202:
Which of the following protocols make use of port 143?
A. IMAP4 B. FTP C. Telnet D. SNMP Answer: A Explanation:
Internet Message Access Protocol Version: 4 makes use of this port for client to server communication.
Incorrect answers:
B: FTP makes use of port 20 C: Telnet makes use of port 23 D: SNMP makes use of port 162 References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 203:
Which of the following ports does SMTP use?
A. 25. B. 20. C. 23. D. 162.
Actualtests.com - The Power of Knowing Answer: A
Explanation:
Simple Mail Transfer Protocol makes use of this port for server to server communication. Incorrect answers:
B: FTP makes use of port 20 C: Telnet makes use of port 23 D: SNMP makes use of port 162 References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 204:
Which of the following ports does POP3 use?
A. 110. B. 20. C. 23. D. 162. Answer: A Explanation:
Post Office Protocol Version: 3 makes use of this port for client to server communication. Incorrect answers:
B: FTP makes use of port 20 C: Telnet makes use of port 23 D: SNMP makes use of port 162 References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 205:
Which of the following ports does IMAP4 use?
A. 143. B. 20. C. 23. D. 162. Answer: A Explanation:
Actualtests.com - The Power of Knowing
Internet Message Access Protocol Version: 4 makes use of this port for client to server communication.
Incorrect answers:
B: FTP makes use of port 20 C: Telnet makes use of port 23 D: SNMP makes use of port 162 References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 206:
By which means do most network bound viruses spread?
A. E-mail. B. Floppy C. CD-Rom
D. Mass storage devices
Answer: A
Explanation:
E-mail is the reason for the high speed at which viruses are spread over the network. Incorrect answers:
B, C, D: Removable storage such as floppy and CD's are not vital in a system and your antivirus software should reject the device immediately and prompt removal.
References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p 67
QUESTION 207:
Which of the following options would be the primary firewall to protect you from e-mail viruses? A. E-mail servers. B. Antivirus software. C. SMTP. D. IMAP4. Answer: A Explanation:
E-mail servers detect the viruses in the messages received from various sources and send warnings to the recipient to warn him/her of the risky mail. This server has the necessary means to reject infected mail content. E-mail servers have their own virus scanners to
Actualtests.com - The Power of Knowing
filter all the incoming mail before it reaches the server. An e-mail server is a middle man in the delivery of the message.
Incorrect answers:
B: Antivirus software only tackles the virus once it reaches the recipient therefore the recipient should have the latest virus definitions to stay immune.
C, D: This is a mail protocol and sole purpose is to form a platform on which mail is sent.
References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p. 273.
QUESTION 208:
Which of the following definitions should BEST suit the functions of an e-mail server?
A. Detect the viruses in the messages received from various sources and send warnings to the recipient to warn him/her of the risky mail.
B. Notify you that a message carries a virus. C. Forms a platform on which messages are sent.
D. Makes use of a port used specifically for messages to be sent through.
Answer: A
Explanation:
E-mail servers detect the viruses in the messages received from various sources and send warnings to the recipient to warn him/her of the risky mail. This server has the necessary means to reject infected mail content. E-mail servers have their own virus scanners to filter all the incoming mail before it reaches the server. An e-mail server is a middle man in the delivery of the message.
Incorrect answers:
B: This is the function of antivirus software C, D: These are messaging protocols. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, pp. 273.
QUESTION 209:
Which of the following would be the correct sequence for SSH?
A. E-mail client, SSH server, E-mail client, SSH Tunnel, SSH Server, E-mail server. B. E-mail client, SSH Tunnel, SSH server, E-mail server.
C. E-mail client, SSH Tunnel, SSH server, E-mail client, E-mail server.
Actualtests.com - The Power of Knowing Answer: A
Explanation:
Secure Shell (SSH) is the tunneling protocol originally used on UNIX systems. SSH is now available for both UNIX and Windows environments. The handshake process between the client and server is similar to the process described in SSL. SSH is primarily intended for interactive terminal sessions. The first phase is a secure channel to negotiate the channel connection. The second phase is a secure channel used to establish the connection.
Incorrect answers:
B, C, D: These do not apply as any part of the SSH tunneling protocol. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p. 396.
QUESTION 210:
On which of the following should Anti-Virus software be installed to provide optimum protection on a network?
A. On all workstations connected to the Internet. B. On all network servers.
C. On all workstations and servers. D. On all terminals.
Answer: C
To provide optimum protection on the network, you should ensure that all systems, workstations and servers included, have Anti-Virus software in stalled on them. Incorrect Answers:
A: Installing Anti-Virus software on only the workstations connected to the internet will leave the other workstations and servers vulnerable to LAN based viruses that can be introduced to the network through disk dives.
B: Installing
Anti-Virus software on only the servers will leave all workstations vulnerable to LAN based viruses that can be introduced to the network through disk dives and Internet based viruses.
D: Installing Anti-Virus software on only the terminals will leave the other workstations and servers vulnerable to Internet based viruses.
References:
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 392-394.
QUESTION 211:
Actualtests.com - The Power of Knowing A. .txt B. .com C. .dll D. .exe Answer: A
Plain text documents cannot be infected by viruses. Incorrect Answers:
B, C, D: Executable files such as .com, .exe and .dll files can be infected by viruses. References:
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 392-394.
QUESTION 212:
Which of the following should be scanned for viruses?
A. Plain text documents. B. Microsoft Word documents. C. Executable files.
D. All of the above.
Answer: B, C Incorrect Answers:
A: Plain text documents cannot be infected by viruses and do not need to be scanned. D: Executable files such as .com, .exe and .dll files and Microsoft Word documents can be infected by viruses and should be scanned.
References:
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 392-394.
QUESTION 213:
Choose the primary disadvantage of using a third party mail relay.
A. Spammers can utilize the third party mail relay. B. A third party mail relay limits access to specific users.
C. A third party mail relay restricts the types of e-mail that maybe sent. D. A third party mail relay restricts spammers from gaining access.
Answer: A
Explanation:
Using a third party email relay can put you in an advantage of getting unnecessary spam. Anyone on the internet can relay an unsolicited email through an SMTP server, and the message will appear to be legitimate coming from the email server, and it makes it much
Actualtests.com - The Power of Knowing more difficult to trace the spammer.
Incorrect answers:
B: Relay actually lends itself to being exploited by unsolicited spammers. C: This is not the main disadvantage of a relay.
D: The relay does not restrict spammers from gaining access. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Alameda, Sybex, 2004, p. 129
QUESTION 214:
Choose the option that correctly defines the purpose of S/MIME (Secure Multipurpose Internet Mail Extensions).
A. S/MIME is used to encrypt user names and profiles to ensure privacy. B. S/MIME is used to encrypt messages and files.
C. S/MIME is used to encrypt network sessions acting as a VPN (Virtual Private Network) client.
D. S/MIME is used to automatically encrypt all outbound messages.
Answer: B
Explanation:
Secure MIME (S/MIME) is a standard used for encrypting e-mail. S/MIME can also contain signature data. S/MIME provides encryption, integrity, and authentication when used in conjunction with PKI.
Incorrect answers:
A: S/MIME is meant to encrypt messages and files, not user names and profiles. C: A VPN is a private network that provides security over an otherwise unsecure environment. This is not what S/MIME does.
D: It is not only outbound messages that are encrypted. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Alameda, Sybex, 2004, p 330
QUESTION 215:
S/MIME requires the implementation of which of the following in order to operate?
A. A digital certificate. B. A server side certificate.
C. A SSL (Secure Sockets Layer) certificate. D. A public certificate.
Actualtests.com - The Power of Knowing Explanation:
What differentiates S/MIME from MIME is that it uses RSA asymmetric encryption and it relies on a digital certificate for authentication.
Incorrect answers:
B: You need a digital certificate and not a server side certificate. C: This is not necessary for S/MIME.
D: You need a digital certificate with S/MIME instead. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Alameda, Sybex, 2004, p. 330
QUESTION 216:
A malformed MIME (Multipurpose Internet Mail Extensions) header can have a negative impact on the system. Choose the option that correctly details this.
A. Can lead to the creation of a back door, which will enable attackers to access the internal network.
B. Can create a virus that infects the computers of users.
C. Can result in the unauthorized disclosure of private information. D. Can result in an e-mail server crashing.
Answer: D
Explanation:
Microsoft Exchange Server 5.0 & 5.5 had a vulnerability that made it suspect to crashes following a malformed MIME header. Patches have since been released.
Incorrect answers:
A: It does not create a backdoor. This is usually the result of a Trojan horse. B: Viruses are not created due to malformed MIME.
C: This is not a result of malformed MIME. References:
Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Alameda, Sybex, 2004, p. 330
QUESTION 217:
Choose the standard typically used to encrypt e-mail messages.
A. S/MIME