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PostgreSQL PGCES-02 Exam - Topic 5 Question 47 Discussion

What does the following command do? Choose two incorrect statements from the selection below. Note: $ is the command prompt. $ pg_restore -U postgres -d database1 database1.dump
A) This command restores the database database1 from the file database1.dump.
B) This command connects to a database as the user 'postgres'.
C) This command can not be executed unless the postmaster is running.
D) This command can not restore large objects.
E) This command must be executed under the condition where the database database1 does not exist.

PostgreSQL PGCES-02 Exam - Topic 5 Question 47 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam
Question #: 47
Topic #: 5
[All PGCES-02 Questions]

What does the following command do? Choose two incorrect statements from the selection below. Note: $ is the command prompt. $ pg_restore -U postgres -d database1 database1.dump

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Suggested Answer: A

by Tyra at Aug 08, 2023, 04:02 PM

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Adela
8 months ago
Wait, can pg_restore really run without the postmaster?
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Lovetta
8 months ago
E is definitely incorrect, the database can exist.
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Jettie
8 months ago
D seems off, I thought it could restore large objects.
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Levi
8 months ago
B is true too, connects as postgres.
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Kina
9 months ago
A is correct, it restores the database.
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Alfred
9 months ago
A seems right, but I feel uncertain about C. I thought the postmaster had to be running for most operations, but maybe not for restores?
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Harris
9 months ago
I practiced a similar question, and I think D is incorrect because pg_restore can handle large objects. E sounds wrong too, but I can't recall the exact rules about existing databases.
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Dell
9 months ago
I think B is definitely true since it specifies the user 'postgres', but I'm a bit confused about C. Does the postmaster need to be running for all database commands?
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Val
9 months ago
I remember that pg_restore is used to restore databases, so A seems correct. But I'm not sure about E; can we restore to an existing database?
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Monte
9 months ago
Hmm, I'm not totally sure about this one. I know defined contribution plans are different from defined benefit plans, but I can't remember which party takes on the risk. I'll have to think this through carefully.
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Annett
9 months ago
This seems like a classic case of operant conditioning. I'm pretty confident the answer is D - Mrs. Carr has negatively reinforced Jack's interrupting behavior by giving in and playing with him when he screams.
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Ma
1 year ago
Wait, so we're supposed to choose the incorrect statements? This exam is like a game of 'Reverse Psychology: The Questionnaire'. I'm just going to pick the ones that sound the most right and see what happens.
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Wilda
1 year ago
Ooh, this is a good one! I'm going to go with C and E as the incorrect answers. Of course the postmaster needs to be running, and I don't need to worry about the database not existing. This is just a basic pg_restore command, right?
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Mitsue
1 year ago
I'm going with C and D as the incorrect statements. The postmaster needs to be running, and pg_restore can definitely handle large objects. Looks like the exam writers are trying to catch us with some tricky options.
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Veronika
1 year ago
It's always good to be careful with tricky options on exams. But it looks like we've got this one figured out.
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Glendora
1 year ago
Definitely! It's important to read the questions carefully and not get caught up in the tricky options.
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Beth
1 year ago
Yeah, I agree. And pg_restore can definitely handle large objects, so D is definitely incorrect.
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Gail
1 year ago
Yeah, the exam writers are trying to trick us with those options. Good thing we caught that!
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Corazon
1 year ago
I agree, C is definitely wrong. And pg_restore can handle large objects, so D is incorrect as well.
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Roxane
1 year ago
I think you're right, C and D seem like the incorrect statements. The postmaster does need to be running for the command to work.
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Jannette
1 year ago
I think C and D are incorrect too. The postmaster needs to be running for the command to work.
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Fernanda
1 year ago
Hah, E is clearly the wrong answer. Why would I need to make sure the database doesn't exist? That's just silly. This exam is testing my PostgreSQL knowledge, not my ability to state the obvious.
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Caitlin
1 year ago
User1: Exactly, it's more about understanding how to use pg_restore and connect to the database.
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Dominque
1 year ago
User2: I agree, that's a strange requirement. It's definitely not necessary for the command to work.
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Antione
1 year ago
User1: E is definitely a wrong answer. It doesn't make sense to check if the database exists before restoring it.
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Yvonne
1 year ago
A and B are correct, but C and D? Really? Everyone knows the postmaster needs to be running and that pg_restore can handle large objects. These options are just trying to trip me up!
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Aretha
1 year ago
It's important to read the question carefully before selecting an answer.
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Pamella
1 year ago
I always have to double check those tricky questions.
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Benton
1 year ago
Yeah, they are definitely trying to trick you with those incorrect statements.
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Viva
1 year ago
Yeah, they are definitely trying to trick us.
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Galen
1 year ago
I agree, those options are misleading.
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Leatha
1 year ago
I agree, those options are misleading.
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Carmen
1 year ago
I think the correct statements are A and D because it cannot restore large objects.
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Janine
1 year ago
I disagree, I believe the correct statements are A and E.
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Glendora
1 year ago
I think the correct statements are A and B.
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