Postgres Quiz Archive

You have 200 seconds to answer 20 Random questions so think fast!

You will need to score 80% or over to pass!

Created by Paul Sammy

PostgreSQL 14 Internals Chapter 1

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 1.

1 / 20

What is the purpose of the visibility map?

2 / 20

What is a schema?

3 / 20

Who is the Author of the Postgres 14 Internals book?

4 / 20

The information_schema schema provides information on Postgres release notes?

5 / 20

Which fork is specific for unlogged tables?

6 / 20

What is the name of the 2 default tablespaces created after initialization?

choose 2

7 / 20

What is the purpose of wal writer?

8 / 20

What is the name of the mechanism used to store a row bigger than a page size?

9 / 20

What column in system catalogs servers as the Primary Key

10 / 20

TOAST tables reside in a seperate schema?

11 / 20

What is the name of the system catalog table for relations?

12 / 20

The pg_default tablespace should never be used to create user tables?

13 / 20

Some System Catalog tables are common to all databases in the cluster?

14 / 20

What command is used to create the Postgres cluster?

15 / 20

What is the default standard size for a fork file?

16 / 20

What is the process first launched at server start?

17 / 20

It is the postmasters job to listener for incoming connections?

18 / 20

Which fork keeps track of available space within pages?

19 / 20

What is the name of the catalog that stores metadata for all cluster objects?

20 / 20

pg_catalog schema is used to store system catalog tables?

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Created by Paul Sammy

PostgreSQL 14 Internals Chapter 2

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 2.

1 / 10

A phantom read anomaly occurs when?

2 / 10

Lost updates are forbidden by the standard at all isolation levels?

3 / 10

Which parameters sets the database default isolation level?

4 / 10

What is the acronym used for the attributes that ensure Data consistency, integrity and durability?

5 / 10

Which of the below would best describe a dirty read?

6 / 10

Which isolation level in theory could mean an application does not have to consider isolation anomalies?

7 / 10

What is the default Isolation Level?

8 / 10

which of the below statements will start a transaction as Read Repeatable?

9 / 10

Data Consistency is best handled at the application layer rather than at the database layer?

10 / 10

The more locks a transaction acquires, the better it is isolated from other transactions?

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Created by Paul Sammy

PostgreSQL 14 Internals Chapter 3

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 3.

1 / 10

Each page has a layer that usually consists of?

choose 2

2 / 10

If a transaction aborts, all page changes are reverted(rolled back) in place?

3 / 10

CLOG Pages are never cached in memory?

4 / 10

psql provides a special mode that allows you to continue a transaction after a failure?

5 / 10

Tuples can also be referred to as columns?

6 / 10

Which of the below are true about a Pages Item Pointer?

7 / 10

Page header sizes can be easily displayed using the <choose from answers> extension

8 / 10

CLOG files are stored in which directory?

9 / 10

What does an Item Pointer contain?

choose 3

10 / 10

In Postgres, tables are often referred to as which of the below?

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