Postgres Quiz Archive

You have 200 seconds to answer 20 Random questions so think fast!

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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.

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

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2. What is a schema?

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3. Which fork contains the actual table data?

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

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

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

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7. Which fork is specific for unlogged tables?

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8. Postgres uses a thread based process model?

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

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10. What is the purpose of the postgres database?

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11. It is the postmasters job to listener for incoming connections?

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

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13. System Catalog tables begin with which prefix?

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14. Tablespaces are used to define physical data layout?

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15. To be able to restore data consistency, Postgres maintains

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

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17. What is the purpose of autovacuum?

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

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

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20. What is the point of the pg_global tablespace?

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

2 / 10

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

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3. What is the default Isolation Level?

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4. Which parameters sets the database default isolation level?

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

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

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

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

9 / 10

9. The SQL standard specifies three isolation levels?

10 / 10

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

choose 3

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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. Tuples can also be referred to as columns?

2 / 10

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

3 / 10

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

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4. Which function can we use to find the current transaction ID?

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5. What does an Item Pointer contain?

choose 3

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

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

8 / 10

8. indexes do not use row versioning?

9 / 10

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

10 / 10

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

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