Friday, September 26, 2008

Here are the answers to the Cisco practice exam questions posted on Thursday, September 26!

If you missed this week's Cisco Certification Jeopardy! game, be sure to scroll down and play!

CCNA Certification And CCENT Certification:

List the three steps in the TCP 3-way handshake and briefly describe what happens in each step.

Answer: The initial segment with the SYN bit set contains negotiable values, including the synchronization number. The SYN-ACK response is an acknowledgement that the initial message was received, and an agreement to the negotiated values. The final ACK is an acknowledgement that the SYN-ACK was received, and the three-way handshake is complete.

CCNA Security Certification / CCNP ISCW Exam:

Define each "A" in AAA and briefly describe the purpose of each.

Answer: Basically, Authentication defines who can gain access to your network, Authorization defines what they can do once they're in, and Accounting keeps track of what resources are used.

CCNP Certification / BSCI Exam:

What exactly does the default-information originate command do, and under what conditions?

Answer: This OSPF command results in the router advertising a default route, as long as a default route actually exists in the routing table. To advertise a default route even when there isn't one in the routing table, use the always option with this command.

CCNP Certification / BCMSN Exam:

What purpose does DHCP Option 43 serve in wireless networking?

Answer: When Option 43 is in effect, the DHCP Server will include the IP addresses of WLCs in the Option 43 field of the DHCP Offer packet. The LAP can then send L3 LWAPP Discovery Request messages to each of the WLCs.

CCNP / ONT Exam:

What's the main difference between the two available versions of WLSE?

Answer: Actually, there are two differences to be aware of.

There are two versions of WLSE. The full version (generally referred to as simply "WLSE") can manage a maximum of 2500 devices. WLSE Express is for smaller networks that have 100 or fewer devices to manage.

One important setup difference between the two - the Express version has an integrated AAA server; the "regular" version does not, so you will need an external AAA server for use with the full version.

New questions and a new YouTube video will be posted here on the blog later today!

To your success,

Chris Bryant
CCIE #12933

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