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

1. What is the purpose of autovacuum?

2 / 20

2. The information_schema schema provides information on Postgres release notes?

3 / 20

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

4 / 20

4. What is the purpose of wal writer?

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

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6. Which fork contains the actual table data?

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7. The default Page size is 2k?

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8. What is the default standard size for a fork file?

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9. pg_catalog schema is used to store system catalog tables?

10 / 20

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

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11. Who is the Author of the Postgres 14 Internals book?

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12. Which of below are predefined schemas?

choose 2

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

choose 3

14 / 20

14. What is the point of the pg_global tablespace?

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15. What is the purpose of the postgres database?

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

Choose 2 option

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

choose 2

18 / 20

18. Which fork is specific for unlogged tables?

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

20 / 20

20. Which 3 databases exist directly after cluster initialization?

choose 3 options

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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

1. What is the default Isolation Level?

2 / 10

2. Which of the below are valid Isolations Levels?

choose 2

3 / 10

3. Which of the below would best describe a dirty read?

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

7. Which parameters sets the database default isolation level?

8 / 10

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

9 / 10

9. A phantom read anomaly occurs when?

10 / 10

10. The SQL standard specifies three isolation levels?

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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

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

2 / 10

2. What does an Item Pointer contain?

choose 3

3 / 10

3. The page Special Space is located at the start of the page with highest address

4 / 10

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

5 / 10

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

6 / 10

6. Which 2 items does a Virtual XID consist of?

7 / 10

7. at any one time Postgres can have several versions of a row?

8 / 10

8. Indexes values also support multi versioning with several versions of an index value existing at any point in time?

9 / 10

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

10 / 10

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

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