QUESTION: 65

____________is a set of extensions to DNS that provide the origin authentication of DNS data to DNS clients (resolvers) so as to reduce the threat of DNS poisoning, spoofing, and similar types of attacks.

DNSSEC
Resource records
Resource transfer
Zone transfer

Answer(s): A

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QUESTION: 66

Which of the following incident handling process phases is responsible for defining rules, collaborating human workforce, creating a back-up plan, and testing the plans for an organization?

Preparation phase
Containment phase
Identification phase
Recovery phase

Answer(s): A

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QUESTION: 67

The configuration allows a wired or wireless network interface controller to pass all traffic it receives to the Central Processing Unit (CPU), rather than passing only the frames that the controller is intended to receive. Which of the following is being described?

Multi-cast mode
Promiscuous mode
WEM
Port forwarding

Answer(s): B

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QUESTION: 68

A large mobile telephony and data network operator has a data center that houses network elements. These are essentially large computers running on Linux. The perimeter of the data center is secured with firewalls and IPS systems.

What is the best security policy concerning this setup?

Network elements must be hardened with user ids and strong passwords. Regular security tests and audits should be performed.
As long as the physical access to the network elements is restricted, there is no need for additional measures.
There is no need for specific security measures on the network elements as long as firewalls and IPS systems exist.
The operator knows that attacks and down time are inevitable and should have a backup site.

Answer(s): A

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QUESTION: 68