Exam 11: Network Security

A NOS that contains a "back door"is an example of a risk associated with ____.

Network security is more often compromised "from the inside" than from external sources.

Human errors, ignorance, and omissions cause more than half of all security breaches sustained by networks.

A(n) ____________________ is a thorough examination of each aspect of the network to determine how it might be compromised.

Explain how to block traffic attempting to exit a LAN and discuss why an administrator would want to do this.

Describe an advantage of using EAP.

Describe the two phases IPSec use to accomplish authentication.

Describe what distinguishes 802.1x from other authentication standards.

The combination of a public key and a private key is known as a ____.

Define SSH (secure shell) and explain the threats it guards against. Include an explanation of the encryption algorithms that may be used with it.

Describe one potential flaw in CHAP and MS-CHAP authentication and explain how it is resolved.

In ____, a hacker forges name server records to falsify his host's identity.

Describe the three-way handshake used in CHAP.

____________________ is the use of an algorithm to scramble data into a format that can be read only by reversing the algorithm.

____ is a social engineering practice in which a person attempts to glean access or authentication information by posing as someone who needs that information.

A VPN ____ authenticates VPN clients and establishes tunnels for VPN connections.

In general, information is ____________________ if it could be used by other parties to impair an organization's functioning, decrease customers' confidence, cause a financial loss, damage an organization's status, or give a significant advantage to a competitor.

Define and describe PAP.

A(n) ____________________ is a software application on a network host that acts as an intermediary between the external and internal networks, screening all incoming and outgoing traffic.