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

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

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

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

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

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6. What is another name for the postgres process?

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

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8. TOAST tables reside in a seperate schema?

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9. Which of below are predefined schemas?

choose 3

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10. What is the purpose of autovacuum?

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

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

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

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

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

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16. What is the purpose of the template0 database?

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

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18. A single Postgres Instance can server only one database?

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19. The default Page size is 2k?

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20. Which fork is specific for unlogged 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 parameters sets the database default isolation level?

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

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3. The SQL standard specifies three isolation levels?

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4. A phantom read anomaly occurs when?

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5. What is the default Isolation Level?

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

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

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

9 / 10

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

10 / 10

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

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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. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

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

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

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

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6. CLOG contains how many bits for each transaction?

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7. Information about subtransactions is stored under?

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

9 / 10

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

10 / 10

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

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