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PostgreSQL PGCES-02 Exam - Topic 5 Question 6 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam
Question #: 6
Topic #: 5
[All PGCES-02 Questions]

psql generated the following error message: psql: could not connect to server: Connection was refused Is the server running on host "server.example.com" and accepting TCP/IP connections on port 5432? Select two reasons that are NOT the cause of this error.

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Suggested Answer: A, E

by Stephane at May 05, 2022, 06:39 PM

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Eileen
5 months ago
I thought incorrect credentials could cause this too, but maybe not?
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Oren
5 months ago
C is definitely a reason, but E is unrelated.
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Walton
6 months ago
Wait, could it actually be D? That’s a possibility!
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Gaston
6 months ago
I agree, B is also not the cause here.
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Glendora
6 months ago
Definitely not A, that host exists.
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Sabrina
6 months ago
I’m a bit confused, but I think option A about the host not existing could be a valid reason for the error, so maybe it’s not one of the answers we need.
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Selma
6 months ago
I feel like we had a practice question about server ports, so option D could be a reason that doesn't cause the error.
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Carman
6 months ago
I'm not entirely sure, but I think option E about username and password might not be related to the connection refusal error.
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Mirta
6 months ago
I remember we discussed that if the server isn't running, it would definitely cause a connection issue, so I think option B is likely a cause.
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Marnie
6 months ago
Okay, let me think this through. The question says the GVP deployment requires TTS using MRCP, so I need to make sure the MRCP settings are correct. I'll go with option A and update the MRCP URL.
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Erasmo
6 months ago
Okay, I've got this. PIM is focused on efficient multicast routing, so the answer has to be about something like preventing forwarding loops or ensuring delivery. I'm confident I can get this right.
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Tommy
6 months ago
I think Application Centric Infrastructure is definitely involved since it optimizes deployment. It feels similar to practice questions we've done.
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