final 19

In the _________ mode, the IPSec header is added between the IP header and the rest of the packet.

transport

IPSec operates at two different modes: _________ mode and _________mode.

transport; tunnel

In the ________ mode, the IPSec header is placed in front of the original IP header.

tunnel

The _______ protocol provides message authentication and integrity, but not privacy.

AH

The ________ protocol is designed to authenticate the source host and to ensure the integrity of the payload carried by the IP packet.

AH

The _______ protocol provides message authentication, integrity, and privacy.

ESP

VPN technology uses two simultaneous techniques to guarantee privacy for an organization: ________ and ___________.

IPSec; tunneling

IPSec defines two protocols: _________ and __________.

None of the choices are correct

_______ was invented by Phil Zimmermann to provide all four aspects of security in the sending of email.

None of the choices are correct

IPSec requires a logical connection between two hosts using a signaling protocol called ____________.

SA

The _______ was designed to provide security at the transport layer.

TLS

A proxy firewall filters at the __________ layer.

application

Tunneling is a technique in which the IP datagram is first _______ and then _______.

encrypted; encapsulated in another datagram

IP Security (IPSec) is a collection of protocols designed by the IETF (Internet Engineering Task Force) to provide security for a packet at the _________ level.

network

A packet-filter firewall filters at the ________ or ___________ layer.

network; transport