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. The information_schema schema provides information on Postgres release notes?

2 / 20

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

3 / 20

3. Which fork is specific for unlogged tables?

4 / 20

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

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5. What is the purpose of autovacuum?

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

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

Choose 2 option

8 / 20

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

9 / 20

9. What is another name for the postgres process?

10 / 20

10. What is the point of the pg_global tablespace?

11 / 20

11. What column in system catalogs servers as the Primary Key

12 / 20

12. How does Postgres know which schema to use if not specified?

13 / 20

13. What is the process first launched at server start?

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14. The default Page size is 2k?

15 / 20

15. A schema can belong to more than one database?

16 / 20

16. What is the purpose of the template1 database?

17 / 20

17. Which fork keeps track of available space within pages?

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

choose 3

19 / 20

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

20 / 20

20. TOAST tables reside in a seperate schema?

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

2 / 10

2. non-repeatable read anomaly occurs when?

3 / 10

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

4 / 10

4. The SQL standard specifies three isolation levels?

5 / 10

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

6 / 10

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

7 / 10

7. What is the default Isolation Level?

8 / 10

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

9 / 10

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

10 / 10

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

Your score is

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

2 / 10

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

3 / 10

3. status of a subtransaction is written into CLOG?

4 / 10

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

5 / 10

5. What does an Item Pointer contain?

choose 3

6 / 10

6. indexes do not use row versioning?

7 / 10

7. Tuples can also be referred to as columns?

8 / 10

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

9 / 10

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

10 / 10

10. UPDATE can be regarded as which 2 separate operations?

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