1. On a VPN, traffic is decrypted at every
Explanation: A virtual private
network (VPN) is a secure communications protocol that encrypts traffic
between two endpoints. At each endpoint, the traffic is decrypted. Traffic
can consist of one-to-one, one-to-many and many-to-many conversations.
A typical application for a company would be to place a VPN at a satellite
location. All traffic between the location, other satellite locations
and corporate headquarters is automatically encrypted.
2. Microsoft supports the PPTP
and IPSec standards for use in extranets.
is used by an extranet to connect multiple intranets via the Internet.
is being seen as an alternative to S/MIME.
Explanation: S/MIME (Secure
Multi-Purpose Internet Mail Extensions) is a secure method of sending
e-mail that uses the Rivest-Shamir-Adleman encryption system. S/MIME
is included in the latest versions of the Web browsers from Microsoft
and Netscape and has also been endorsed by other vendors that make messaging
products. RSA has proposed S/MIME as a standard to the Internet Engineering
Task Force (IETF). An alternative to S/MIME is PGP/MIME,
which has also been proposed as a standard.
5. PGP provides cryptographic routines
for e-mail , file transfer and
file storage .
Explanation: PGP (Pretty Good
Privacy) is a software package originally developed by Phil Zimmerman
that provides cryptographic routines for e-mail, file transfer, and
file storage applications. Zimmerman used existing cryptographic algorithms
and protocols and developed a system that can run on multiple platforms.
It provides message encryption, digital signatures, data compression,
and e-mail compatibility.
6. TACACS+ is an update to TACACS
and is backwards compatible. True or false? False.