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

Which fork contains the actual table data?

2 / 20

When PostgreSQL is running what can it be referred to as?

Choose 2 option

3 / 20

What is the point of the pg_global tablespace?

4 / 20

Postgres uses a thread based process model?

5 / 20

Which fork keeps track of available space within pages?

6 / 20

What is the purpose of the template1 database?

7 / 20

A Postgres cluster consists of 2 or more physical servers accessing one Postgres Instance?

8 / 20

Users should not modify the template0 database

9 / 20

What is the default standard size for a fork file?

10 / 20

Tablespaces are used to define physical data layout?

11 / 20

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

12 / 20

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

13 / 20

Postgres server spawns a new backend session for each connection?

14 / 20

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

15 / 20

TOAST tables reside in a seperate schema?

16 / 20

pg_catalog schema is used to store system catalog tables?

17 / 20

A single Postgres Instance can server only one database?

18 / 20

Each tablespaces can only be assigned for use by one database

19 / 20

Which fork is specific for unlogged tables?

20 / 20

What is another name for the postgres process?

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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

At any moment the database system can contain several versions of one and the same row?

2 / 10

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

3 / 10

Which parameters sets the database default isolation level?

4 / 10

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

5 / 10

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

6 / 10

Snapshot isolation is preferred but increases the number of required locks?

7 / 10

The SQL standard specifies three isolation levels?

8 / 10

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

9 / 10

What is the default Isolation Level?

10 / 10

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

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0%

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

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

2 / 10

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

3 / 10

The page header is located in the highest address?

4 / 10

When a row is created, its xmin value is set to the transaction ID of which command?

5 / 10

The page header stores checksum and the sizes of the other parts of the page?

6 / 10

UPDATE can be regarded as which 2 separate operations?

7 / 10

Information about subtransactions is stored under?

8 / 10

Postgres table physical data files are always cross compatible across platforms?

9 / 10

a transaction containing a savepoint is will still be considered as only a single transaction?

10 / 10

Which 2 items does a Virtual XID consist of?

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