Thursday, September 11, 2008

Welcome back, my friends, to the Cisco questions that never end!

Here are the answers to Wednesday's questions!

CCNA Certification And CCENT Certification:

In the world of Frame Relay, what does "CIR" stand for? More importantly, what does it mean?

Answer: That's the Committed Information Rate, and it's the amount of bandwidth that your service provider guarantees you.

CCNA Security Certification / CCNP ISCW Exam:

You're working with an IPS, and you're prompted about something called "SDEE". What is it, and what is its purpose?

Answer: SDEE (Security Device Event Exchange) is an application-layer protocol that allows the exchange of messages between an IPS server and client. SDEE pulls logs from our routers, and these logs can be viewed in SDM, as shown in the partial screen shot from my CCNA Security Study Package:

CCNP Certification / BSCI Exam:

You're configuring a customer's Cisco switch and note something called "IGMP Snooping" is enabled. Is this desirable? What exactly is being snooped upon?

Answer: It's desirable, and the IGMP reports being sent from a host to a multicast router are being "snooped" upon.

The switch listens to these reports and records the multicast group's MAC address and the switch port upon which the IGMP report was received. This allows the switch to learn which ports actually need the multicast traffic, and will send it only to those particular ports instead of flooding the traffic.

CCNP Certification / BCMSN Exam:

What command will change the port cost of interface fast 0/12 on a Cisco switch to 9 for ALL VLANs? Where should this command be placed?

Answer: On the interface, configure spanning-tree cost 9.

CCNP / ONT Exam:

Which of the following LEAP versions involves more than one secure certificate?





Answer: D. When using EAP-TLS, both the client and server will have a secure certificate. ( With PEAP, only the server has a secure certificate.)

I'll be back later today with another set of questions - and be sure to check today's other blog posts for links to three new practice exams that have been posted on the website!

To your success,

Chris Bryant
CCIE #12933

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