Monday, August 11, 2008

It's Monday, August 11, and here are the answers to yesterday's Cisco practice exam questions!

Read today and yesterday's blog posts for links to new practice exams and Cisco tutorials that have been posted on the main site!

CCNA Certification And CCENT Certification:

Identify the default settings of a Cisco router that has just been initialized and reloaded.

A. The name of the device is "router".

B. The password encryption service is enabled.

C. There is a password on the console port - "cisco".

D. There is a loopback interface with no IP address assigned.

E. There is a loopback interface with the default IP address /16.

Answers: A. Password encryption is disabled, there is no default password on the console port, and there is no loopback interface created by default on a router. (A switch will have the default interface VLAN1 created by default, though.)

CCNA Security Certification / CCNP ISCW Exam:

What's the difference between symmetric and asymmetric encryption?

Answer: Symmetric encryption is an algorithm where the key that is used for encryption is also used for decryption. The drawback to symmetric encryption is that the key is used for two purposes, making it that much easier for an intruder to discover the key.

In contrast, asymmetric encryption involves two keys for both the sender and receiver. This public key encryption scheme involves a public and private key for each user. Before starting the actual encryption process, the public key should be certified by a third party called a Certificate Authority (CA).

CCNP Certification / BSCI Exam:

What BGP attribute matches the following description?

"This attribute allows us to logically group routers that have a common configuration."

Answer: That's the BGP community attribute.

CCNP Certification / BCMSN Exam:

What command allows you to assign a password to all virtual terminal lines on a Cisco 2950 switch?

Answer: vty line 0 15. Remember, this Cisco switch model and most others have 16 VTY lines, not just five. The VTY lines will appear in two groups in the configuration, but you can configure them all at one time with the line vty 0 15 command.

line vty 0 4
line vty 5 15

CCNP / ONT Exam: (My ONT Study Package will be out later this week!)

What's the major difference between an Autonomous WLAN and a Lightweight WLAN?

Answer: With an autonomous WLAN implementation, the APs are configured individually - there is no WLAN Controller.

I'll have new questions right here and on the main website later today and this week as well, including new CCNA Security features!

To your success,

Chris Bryant
CCIE #12933

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