F5 Networks 301a Exam - Topic 3 Question 36 Discussion

Actual exam question for F5 Networks's 301a exam

Question #: 36
Topic #: 3

An LTM Administrator receives an email from the NOC stating that the switch connected to the backend server was shut down for maintenance. The BIG-IP device handles only UDP traffic. The BIG IP device did not fail over to a DR location when no pool members were available.

When the LTM Administrator checks the pool, it confirms that the monitor is still marking UP the pool member.

A tcpdump of the traffic shows the following output:

A list of the monitor configuration shows the following:

Which two modifications to the LTM configuration will mark this pool member down, when the switch is down? (Choose two.)

Aincrease the timeout to three times the interval

Badd a reverse string to the game monitor

Cenable reverse and wait for the next connection

Dalso assign a gatewayjcmp monitor to the pool

Eenable manuai-resume on the same monitor

Show Suggested Answer

Suggested Answer: B, D

by Lauran at May 04, 2022, 06:35 AM

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Son

5 months ago

Definitely agree with option D, it should help mark it down when the switch is down.

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Beckie

5 months ago

Wait, how does a reverse string help with this? Seems odd.

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Dulce

5 months ago

Increasing the timeout? That sounds counterproductive.

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Lera

5 months ago

I think adding a gatewayjcmp monitor (D) makes sense here.

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Rosendo

6 months ago

Just a reminder, UDP doesn't guarantee delivery, so monitoring can be tricky.

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Magnolia

6 months ago

I think enabling manual-resume could be useful, but I’m not confident if it’s the best option for this scenario. We need to ensure the monitor reacts quickly.

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Elouise

6 months ago

I feel like increasing the timeout might not be the right move here. It could just delay the detection of the down state instead of marking it down.

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Macy

6 months ago

I’m not entirely sure, but I think adding a reverse string could help the monitor detect when the backend is unreachable. It seems like a similar question we practiced.

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Ricarda

6 months ago

I remember something about monitors needing to accurately reflect the state of the pool members. If the switch is down, we might need a different monitor type.

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Emerson

7 months ago

Hmm, I'm a bit confused. Do we need to delete the existing record and insert a new one, or can we just update the existing record? I'm not sure if option D is the right approach.

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Staci

7 months ago

Delay seems like the most logical choice here. RIP is all about finding the fastest path, so that has to be the metric it uses, right?

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Mabel

7 months ago

Alright, I think I've got a strategy here. I'll start by eliminating the options that are clearly false, like the one about backing up operating system files. Then I'll focus on the remaining options and try to determine which two are true.

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Marcos

7 months ago

Hmm, this looks like a tricky one. I'll need to carefully analyze the code to identify any potential vulnerabilities.

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