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Exam 6: Security Technology: Firewalls and Vpns

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Question 1

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It is important that e-mail traffic reach your e-mail server and only your e-mail server.

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Question 2

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A(n)____________________ private network is a private and secure network connection between systems that uses the data communication capability of an unsecured and public network.

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Syntax errors in firewall policies are usually difficult to identify.

What must a VPN that proposes to offer a secure and reliable capability while relying on public networks accomplish?

Some firewalls can filter packets by protocol name.

A packet's structure is independent from the nature of the packet.

The static packet filtering firewall allows only a particular packet with a particular source,destination,and port address to enter through the firewall._________________________

The general approach of the ____________________ protocol is to place the filtering requirements on the individual workstation rather than on a single point of defense (and thus point of failure).

In ____ mode,the data within an IP packet is encrypted,but the header information is not.

The Cisco security kernel contains three component technologies: the Interceptor/Packet Analyzer,the Security Verification ENgine (SVEN),and Kernel Proxies.

Static filtering is common in network routers and gateways._________________________

An attacker who suspects that an organization has dial-up lines can use a device called a(n)war dialer to locate the connection points._________________________

The popular use for tunnel mode VPNs is the end-to-end transport of encrypted data._________________________

SESAME uses ____________________ key encryption to distribute secret keys.

Firewalls fall into ____ major processing-mode categories.

Access control is achieved by means of a combination of policies,programs,and technologies._________________________

Good policy and practice dictates that each firewall device,whether a filtering router,bastion host,or other firewall implementation,must have its own set of configuration rules.

There are limits to the level of configurability and protection that software firewalls can provide.

A content filter is technically a firewall.

Internal computers are always visible to the public network.