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

pg_catalog schema is used to store system catalog tables?

2 / 20

What is the purpose of the template0 database?

3 / 20

Files are logically split into pages?

4 / 20

Which fork is specific for unlogged tables?

5 / 20

Who is the Author of the Postgres 14 Internals book?

6 / 20

What column in system catalogs servers as the Primary Key

7 / 20

Each tablespaces can only be assigned for use by one database

8 / 20

Which fork keeps track of available space within pages?

9 / 20

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

Choose 2 option

10 / 20

What is the default standard size for a fork file?

11 / 20

It is the postmasters job to listener for incoming connections?

12 / 20

Which of the below objects can be referred to as relations?

choose 3

13 / 20

Postgres server spawns a new backend session for each connection?

14 / 20

Tablespaces are used to define physical data layout?

15 / 20

What is a schema?

16 / 20

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

17 / 20

A schema can belong to more than one database?

18 / 20

Postgres uses a thread based process model?

19 / 20

What command is used to create the Postgres cluster?

20 / 20

Which 3 databases exist directly after cluster initialization?

choose 3 options

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0%

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

What are some of database features we can use to avoid a non repeatable read?

Select more than 1 answer below:

2 / 10

Which of the below are valid Isolations Levels?

choose 2

3 / 10

The SQL standard specifies three isolation levels?

4 / 10

What is the default Isolation Level?

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

Which of the below would best describe a dirty read?

9 / 10

Based on Snapshot Isolation use of MVCC which of the below are permitted?

choose 3

10 / 10

non-repeatable read anomaly occurs when?

Your score is

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

indexes do not use row versioning?

2 / 10

A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

3 / 10

CLOG files are stored in which directory?

4 / 10

UPDATE can be regarded as which 2 separate operations?

5 / 10

What does an Item Pointer contain?

choose 3

6 / 10

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

7 / 10

CLOG Pages are never cached in memory?

8 / 10

Each page has a layer that usually consists of?

choose 2

9 / 10

Information about subtransactions is stored under?

10 / 10

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

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0%