Postgres 16 Beginners Knowledge Quiz

/20

Created by

Paul Sammy

Postgres 16 Beginner Knowledge Checker Test 1.0

20 Questions chosen at Random to test your knowledge.

You have 3 minutes so think fast.

1 / 20

Which of the below are background processes in Postgres?

ARCHIVER

PROCESSMON

WAL WRITER

AUTOVACUUM

2 / 20

Using psql what is '-p' flag user for

password

port

3 / 20

If we delete all rows from a table, its data pages are automatically deleted to free space on disk?

False

True

4 / 20

pgAdmin can be used to run a database backup?

True

False

5 / 20

What does an Attribute describe in Postgres?

Item

Column

Table

Index

6 / 20

Which commands below are considered TCL?

SAVEPOINT

REVOKE

GRANT

SET TRANSACTION

7 / 20

Which file is updated if settings are changed with ALTER SYSTEM?

postgresql.auto.conf

postgresql.auto

postgres.conf

pg_hba.conf

8 / 20

Some views allow data to be updated?

True

False

9 / 20

What is the purpose of the Background Writer?

Writes dirty blocks to disk

Writes flashback blocks to disk

Writes rollback blocks to disk

Writes WAL blocks to WAL logs

10 / 20

Postgres is ACID compliant

False

True

11 / 20

What can wal_level be set to for continuous archiving to be setup?

always

full

max

replica

12 / 20

Schemas contain Users?

True

False

13 / 20

Which default cli is used to run sql commands in Postgres?

psql

pgsql

sqlcmd

isql

14 / 20

pg_dump produces a backup file that is human readable with commands and data to create objects?

False

True

15 / 20

What language is Postgres written in for portability

C

Rust

Python

Java

16 / 20

postgres uses a visibility map that tracks change to determine which tables/rows to perform a Vacuum on?

True

False

17 / 20

Which command modifies Database settings at the cluster level?

ALTER DATABASE

ALTER CLUSTER

ALTER SYSTEM

ALTER USER

18 / 20

pg_basebackup automatically take a database cluster in and out of backup mode?

False

True

19 / 20

which flag in psql will list all databaseS?

a

l

d

c

20 / 20

What is the maximum Row Size in Postgres?

3.2TB

100Mb

1Gb

1.6TB

Your score is

0%

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