VPNs

Question 1

A VPN is used primarily for what purpose?

Allow remote systems to save on long distance charges
Support secured communications over an untrusted network
Support the distribution of public Web documents
Allow the use of network-attached printers

Answer 1

Support secured communications over an untrusted network

Question 2

You want to allow traveling users to connect to your private network through the Internet. Users will connect
from various locations including airports, hotels, and public access points such as coffee shops and libraries.
As such, you won’t be able to configure the firewalls that might be controlling access to the Internet in these
Iocafions.
Which of the following protocols would be most likely to be allowed through the widest number of firewalls?

PPTP
SSL
PPPoE
L2TP
IPsec

Answer 2

SSL

Question 3

You have a group of salesmen who would like to access your private network through the Internet while they
are traveling. You want to control access to the private network through a single server.
Which solution should you implement?

IPS
RADIUS
DMZ
VPN concentrator
IDS

Answer 3

VPN concentrator

Question 4

You are in the middle of a big project at work. All of your work files are on a server at the office. You want to
be able to access the server desktop, open and edit files, save the files on the server, and print files to a
printer connected to a computer at home.
Which protocol should you use?

Telnet
FTP
RDP
SSH
TFTP

Answer 4

RDP

Question 5

Which of the following network layer protocols provides authentication and encryption services for IP based
network traffic?

IPSec
TCP
L2TP
SSL

Answer 5

IPSec

Question 6

Question 6 of 8
You want to use a protocol that can encapsulate other LAN protocols and carry the data securely over an IP
network. Which of the following protocols is suitable for this task?

SLIP
PPTP
NetBEUI
PPP

Answer 6

PPTP

Question 7

Which of the following protocols can your portable computer use to connect to your company’s network via a
virtual tunnel through the Internet? (Select two.)
L2TP
ICA
PPTP
PPPoE
VNC

Answer 7

L2TP

PPTP

Question 8

IPSec is implemented through two separate protocols. What are these protocols called? (Select two.)
AH
SSL
ESP
L2TP
EPS

Answer 8

AH

ESP