CCNA, CCNP, CCENT, Cisco: RFC Address Range & OSPF Router Types

By: Chris Bryant

Use these Cisco practice exam questions to help prepare for success on your upcoming exams.? Answers are at the bottom of the page.? Enjoy!

CCNA Certification And CCENT Certification:

It's a classic question, but you gotta know these by heart. What are the three RFC 1918 private address ranges? Include the masks in your answer.

CCNA Security Certification / CCNP ISCW Exam:

How can you configure SDM to preview the commands before delivering them to the router, and also give you a confirmation prompt when you leave SDM?

CCNP Certification / BSCI Exam:

On what OSPF router type(s) can you use the area range command?

CCNP Certification / BCMSN Exam:

What is the default root path cost of a 100 MB port on a Cisco 2950 switch?

CCNP / ONT Exam:

In the following line, a service policy is being applied - but to what?

R1(config-cp)#service-policy input NTP_POLICE

Here are the answers!

CCNA / CCENT:? Answer:

Class A: 10.0.0.0 /8.? Class B: 172.16.0.0 /12.? Class C: 192.168.0.0 /16

CCNA Security / CCNP ISCW Answer:? Answer: I personally check Preferences in SDM every time I use it, and I recommend you do the same.

Before proceeding to the Configuration section, go to the upper-left corner of the initial SDM window and select Preferences.

BSCI Answer:? ABRs only, as verified by IOS Help.

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#router ospf 1

R1(config-router)#area 1 ?

authentication Enable authentication

default-cost Set the summary default-cost of a NSSA/stub area

nssa Specify a NSSA area

range Summarize routes matching address/mask (border routers only)

stub Specify a stub area

virtual-link Define a virtual link and its parameters

BCMSN Answer:? 19.

ONT Answer:? Answer: The config-cp prompt indicates that we're applying the service policy directly to the Control Plane, so this must be a CoPP configuration.

Look for more Cisco practice exams and fully-illustrated tutorials on my websiteFeature Articles, as well as the one you’re on right now!

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