Tuesday, July 01, 2008

It's Tuesday, July 1, and here are the answers to yesterday's CCNA, CCENT, CCNA Security, and CCNP practice exam questions!

CCNA Wireless and Voice questions will be added in August. Also, look for a new set of CCNA practice exam questions later today!

CCENT Certification:

Which of the following are contained in a DHCP Offer packet? Extra credit: Name the device(s) that send DHCP Offers, and tell me whether that packet is a broadcast, unicast, or multicast.

A. The IP address

B. The network mask

C. The lease length

D. The DHCP password (which is not encrypted by default)

E. The DHCP password (which is encrypted by default)

Answer: A, B, C. There is no DHCP password.

Any DHCP Server that receives a DHCP Discovery packet will respond with a DHCP Offer. The Offer contains the following:

The IP address the DHCP Server is offering to the Client

The network mask the DHCP Server is offering to the Client

The amount of time the Client can keep this information if the Offer is accepted (the lease)

The IP address of the DHCP Server that is making the offer


Short answer: Two OSPF routers connected via an Ethernet segment are exchanging Hello packets. How often will these packets be sent? And by default, what will the OSPF dead time for that link be?

Answer: By default those Hello packets will be sent out every 10 seconds, and since the default dead time is four times the hello time, the dead time will be 40 seconds.

CCNA Security:

Short answer: What security feature can be used to put a Cisco router into "one-step lockdown"?

Answer: We can use Autosecure for this, and we can configure it at the CLI or through Security Device Manager.

Watch my CCNA Security Exam resource page and upcoming Study Package and Video Boot Camp to learn how to configure Autosecure in both ways! (I'll also show you why using one-step lockdown is not always a good idea!)


What are the BGP well-known discretionary attributes?


B. origin



E. atomic aggregate

F. aggregator

Answer: D, E. The BGP well-known attributes are atomic aggregate and LOCAL_PREF (local preference).


What QoS scheme is defined in RFC 1613?

A. DiffServ


C. Integrated Services

D. best-effort

E. Tail Drop

F. Weighted Fair Queueing

Answer: C.


When defining the signature file to use for IPS, you have two options for the location from which the router should load the file. What are they?

Answer: In Flash or from a specified URL.

CCNP / ONT Exam:

What central device is used to manage the Lightweight Access Points in an ad hoc network?

Answer: None - there are no access points in an ad hoc wireless network.

More questions later today!

To your success,

Chris Bryant
CCIE #12933

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