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.

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

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2. Tablespaces are used to define physical data layout?

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3. What command is used to create the Postgres cluster?

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4. Each tablespaces can only be assigned for use by one database

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5. What is the purpose of the postgres database?

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

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

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

choose 3

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

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10. Users should not modify the template0 database

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11. Postgres server spawns a new backend session for each connection?

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12. What is another name for the postgres process?

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

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14. Some System Catalog tables are common to all databases in the cluster?

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

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

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17. System Catalog tables begin with which prefix?

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

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

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

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

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

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

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4. Which of the below are valid Isolations Levels?

choose 2

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

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

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7. The SQL standard specifies three isolation levels?

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8. Which parameters sets the database default isolation level?

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

10 / 10

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

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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. CLOG Pages are never cached in memory?

2 / 10

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

3 / 10

3. Which 2 of the below represent transaction IDs used for row versioning?

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

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5. indexes do not use row versioning?

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6. Tuples can also be referred to as columns?

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

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

9 / 10

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

10 / 10

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

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