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. Which 3 databases exist directly after cluster initialization?

choose 3 options

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

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3. Each Database has its own System Catalog?

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4. What is the purpose of autovacuum?

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

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

choose 3

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7. System Catalog tables begin with which prefix?

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

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

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10. Which fork contains the actual table data?

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

Choose 2 option

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12. TOAST tables reside in a seperate schema?

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

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14. Which of below are predefined schemas?

choose 3

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15. What is the purpose of the public schema?

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16. Which fork is specific for unlogged tables?

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

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18. What is the purpose of wal writer?

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19. What is another name for the postgres process?

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20. Which of below are predefined schemas?

choose 2

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0%

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

2 / 10

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

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

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

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

9 / 10

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

10 / 10

10. A phantom read anomaly occurs when?

Your score is

0%

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

2 / 10

2. If a transaction is read only which kind of Transaction ID is it allocated?

3 / 10

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

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

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

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6. Page free space can often become fragmented?

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

8 / 10

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

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9. Information about subtransactions is stored under?

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10. Each page has a layer that usually consists of?

choose 2

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0%