Saturday, May 03, 2008

Welcome back! It's Saturday, May 3, and here are the answers to yesterday's Cisco certification exam training questions!

CCENT Certification:

Name the three RFC 1918 private address ranges used in private networks, including the appropriate mask.

Class A: /8

Class B: /12

Class C: /16

CCNA Certification:

Short answer: What's the binary equivalent of the hex value c9?

Answer: We've got 12 ("c") units of 16 and 9 units of 1: 192 + 9 = 201. The binary equivalent of 201 is 11001001.

CCNA Certification / BSCI Exam:

Of the following, traffic for which ports is translated from a broadcast to a unicast when the ip helper-address command has been configured?







Answers: A, B, F. These are the ports that are translated from broadcast to unicast with the ip helper-address command:

TIME, port 37; TACACS, port 49; DNS, port 53; BOOTP/DHCP Server, port 67; BOOTP/DHCP Client, port 68; TFTP, port 69; NetBIOS name service, port 137; NetBIOS datagram service, port 138.

CCNP Certification / BCMSN Exam:

The full command to disable a switch port's ability to transmit DTP frames is ____________.

Answer: switchport nonegotiate.

CCNP Certification / ISCW Exam:

Briefly describe a "DDoS" attack.

Answer: A Distributed Denial-Of-Service attack is a typical DoS attack, but one that is carried out by a large number of attackers rather than a single host.

CCNP Certification / ONT Exam:

A router is configured for DiffServ. Which of the following values can the router consider when performing QoS?

A. IP Prec

B. CoS marking

C. incoming interface


Answer: A, C, D. Routers will not use CoS values.

New questions posted later today!

To your success,

Chris Bryant
CCIE #12933

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