Monday, September 15, 2008

Here are the answers to the Cisco CCENT, CCNA, and CCNP practice exam questions posted on Saturday, September 13!

CCNA Certification And CCENT Certification:

In a hub-and-spoke OSPF NBMA network, which router should serve as the Designated Router? What is the most common method of making that particular router the OSPF DR?

Answer; The hub must be the DR, and the most common way of doing so is setting the OSPF interface priority of the spoke routers to zero (the default priority is 1).

CCNA Security Certification / CCNP ISCW Exam:

Which of the following are considered reconnaissance attacks, and which are access attacks?

A. ping sweep

B. port scan

C. password attack

D. trust exploitation

E. DSL query

Answer: Password attacks and trust exploitations are considered access attacks. The other three attacks are recon attacks - attacks that are not primarily created to cause damage, but to gather information for future, more destructive attacks.

CCNP Certification / BSCI Exam:

You're deciding on which PIM method to use. The sender and recipients of multicast traffic are physically close, and there will be few senders. However, you've got a relatively large number of recipients. What is your best choice?

A. PIM Sparse

B. PIM Dense

C. PIM Sparse-Dense

D. PIM Broadcast

Answer: B. That's a great scenario in which to use PIM Dense mode.

CCNP Certification / BCMSN Exam:

Short answer: You're configuring HSRP and need to set the MAC address of the virtual router to 22-33-44-bb-cc-dd. Can this be done? If so, how?

Answer: Yes, you can do that, with the standby mac-address command, as demonstrated here:

R2(config-if)#standby 5 mac-address 2233.44bb.ccdd

CCNP / ONT Exam:

AutoQos uses one particular queuing strategy for voice traffic and another for "regular" data. Name both.

Answer: LLQ for voice traffic, WRR for data.

Fresh-baked questions available later today!

To your success,

Chris Bryant
CCIE #12933

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