Exam 300-101 topic 1 question 38 discussion

Actual exam question from Cisco's 300-101

Question #: 38
Topic #: 1

Scenario -
You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation. The customer has disabled your access to the show running-config command.

Instructions -
- Enter IOS commands on the device to verify network operation and answer for multiple-choice questions.
- THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION.
- Click on the icon or the lab at the bottom of the screen to gain access to the console for each device.
- No console or enable passwords are required.
- To access the multiple-choice questions, click on the numbered boxes on the left of the top panel.
- There are four multiple-choice questions with this task. Be sure to answer all four questions before selecting the Next button.

Which of the following statements is true about the serial links that terminate in R3?

A. The R1-R3 link needs the neighbor command for the adjacency to stay up
B. The R2-R3 link OSPF timer values are 30, 120, 120
C. The R1-R3 link OSPF timer values should be 10, 40, 40
D. R3 is responsible for flooding LSUs to all the routers on the network

Show Suggested Answer

Suggested Answer: B 🗳️
We can see the configured timers using the following command:

by Twizzle at Dec. 12, 2019, 11:02 a.m.

Comments

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vagl

5 years, 5 months ago

depends on "ospf network type" and not on "interface type" 1) PtP - 10/40/40 2) NBMA - 30/120/120

upvoted 2 times

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Twizzle

5 years, 6 months ago

Why is R2-R3 correct and not R1-R3. From the diagram. Both links appear to be pt-to-pt links, so I believe the timers should be 10,40,40. What's the difference that stands out for pt-to-pt links vs non_broadcast links. Seems really tricky for the network types?????????

upvoted 1 times

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