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 another name for the postgres process?

2 / 20

Tablespaces can be used to segregate data based on performance needs?

3 / 20

Which of below are predefined schemas?

choose 2

4 / 20

Which fork keeps track of available space within pages?

5 / 20

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

choose 3

6 / 20

Tablespaces are used to define physical data layout?

7 / 20

To understand each other, a client and a server must use one and the same interfacing protocol?

8 / 20

A schema can belong to more than one database?

9 / 20

What 3 files/forks as a minimum make up a table on disk?

10 / 20

Which fork contains the actual table data?

11 / 20

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

12 / 20

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

13 / 20

What column in system catalogs servers as the Primary Key

14 / 20

What is the purpose of the postgres database?

15 / 20

System Catalog tables begin with which prefix?

16 / 20

If we create a new tablespace which directory will symbolic links be created from?

17 / 20

The default Page size is 2k?

18 / 20

Postgres server spawns a new backend session for each connection?

19 / 20

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

20 / 20

What is the purpose of the template1 database?

Your score is

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 statements will start a transaction as Read Repeatable?

3 / 10

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

4 / 10

Which of the below would best describe a dirty read?

5 / 10

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

6 / 10

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

7 / 10

The SQL standard specifies three isolation levels?

8 / 10

Which parameters sets the database default isolation level?

9 / 10

non-repeatable read anomaly occurs when?

10 / 10

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

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

When a transaction is committed Postgres uses a special <replace with answer> structure?

2 / 10

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

3 / 10

CLOG Pages are never cached in memory?

4 / 10

index row headers like table row headers contain xmin and xmax fields?

5 / 10

What does an Item Pointer contain?

choose 3

6 / 10

Rows of TOAST tables are handled in such a way that they are never update?

7 / 10

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

8 / 10

indexes do not use row versioning?

9 / 10

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

10 / 10

Tuples can also be referred to as columns?

Your score is

0%