PostgreSQL-Essentials PDF Dumps May 20, 2026 Exam Questions – Valid PostgreSQL-Essentials Dumps [Q10-Q32]

PostgreSQL-Essentials PDF Dumps May 20, 2026 Exam Questions – Valid PostgreSQL-Essentials Dumps

Ultimate PostgreSQL-Essentials Guide to Prepare Free Latest EnterpriseDB Practice Tests Dumps

EnterpriseDB PostgreSQL-Essentials Exam Syllabus Topics:

Topic	Details
Topic 1	Disaster Recovery: This section of the exam measures the skills of IT Infrastructure Managers and emphasizes planning and executing disaster recovery procedures. It ensures candidates can design recovery plans to restore operations quickly and minimize data loss after catastrophic events.
Topic 2	Database Objects and Hierarchy: This section of the exam measures the skills of Database Developers and includes understanding tables, views, indexes, and their relationships within a database structure. It assesses the ability to manage and organize objects in a logical hierarchy for efficient data access.
Topic 3	Creating and Managing Databases: This section of the exam measures the skills of Database Developers and focuses on creating, configuring, and maintaining databases. It assesses understanding of database lifecycle management, including setup, schema creation, and performance adjustments.
Topic 4	Database Clusters: This section of the exam measures the skills of System Engineers and covers the principles of clustering for performance and fault tolerance. It evaluates candidates’ ability to manage clustered environments, ensure high availability, and maintain data consistency across nodes.
Topic 5	Fundamental SQL: This section of the exam measures the skills of Database Developers and covers foundational SQL concepts, including queries, joins, and data manipulation. It ensures that candidates can efficiently retrieve, update, and manage data within relational databases.
Topic 6	Backup And Recovery Strategies: This section of the exam measures the skills of Database Administrators and focuses on developing an understanding of essential backup and recovery methods. It evaluates the ability to design, implement, and manage strategies that ensure data protection and system continuity in case of unexpected failures or data loss scenarios.
Topic 7	Configuration Parameters: This section of the exam measures the skills of Database Administrators and includes knowledge of key configuration parameters that impact performance, storage, and reliability. Candidates are tested on setting and tuning configurations to optimize database stability and responsiveness.
Topic 8	Backup and Recovery Tools Overview: This section of the exam measures the skills of System Engineers and covers the use of various backup and recovery tools, including their functionality, compatibility, and configuration. It focuses on selecting appropriate tools based on database type, size, and organizational recovery objectives.

 

NEW QUESTION # 10
In PostgreSQL, which system catalog stores information about databases?

• A. pg_database
• B. information_schema.databases
• C. pg_tables
• D. pg_class

Answer: A

NEW QUESTION # 11
While connected to a PostgreSQL database using psql, you want to toggle the timing information of some queries. Which of the following options can be used to achieve this?

• A. \timing
• B. \time off
• C. \time on
• D. \t

Answer: A

NEW QUESTION # 12
You want to view all available functions in the current database using psql. Which command should you use?

• A. \functions
• B. \df
• C. \f
• D. \fn

Answer: B

NEW QUESTION # 13
You want to allow up to 200 connected users in your PostgreSQL cluster. Which parameter should you modify in postgresql.conf?

• A. max_connections = 200
• B. max_clients = 200
• C. connection_limit = 200
• D. max_users = 200

Answer: A

NEW QUESTION # 14
In PostgreSQL, what does VACUUM do?

• A. Reclaims storage occupied by dead tuples
• B. Compresses the database
• C. Creates database backups
• D. Optimizes query execution plans

Answer: A

NEW QUESTION # 15
Which command rebuilds an index that is performing slowly for better performance?

• A. REBUILD INDEX indexname;
• B. ANALYZE INDEX indexname;
• C. VACUUM INDEX indexname;
• D. REINDEX INDEX indexname;

Answer: D

NEW QUESTION # 16
Which configuration file controls client authentication in PostgreSQL?

• A. auth.conf
• B. pg_ident.conf
• C. pg_hba.conf
• D. postgresql.conf

Answer: C

NEW QUESTION # 17
Which psql command toggles the display of tuples only (without column headers)?

• A. \t
• B. \a
• C. \h
• D. \x

Answer: A

NEW QUESTION # 18
Which command can be used to display all roles and their attributes in PostgreSQL using psql?

• A. LIST ROLES;
• B. \dr
• C. SHOW ROLES;
• D. \du

Answer: D

NEW QUESTION # 19
Which parameter sets the number of autovacuum worker processes?

• A. vacuum_workers
• B. autovacuum_workers
• C. autovacuum_max_workers
• D. max_autovacuum_workers

Answer: C

NEW QUESTION # 20
Which PostgreSQL configuration parameter controls the amount of memory used for sorting operations before writing to temporary disk files?

• A. work_mem
• B. shared_buffers
• C. maintenance_work_mem
• D. temp_buffers

Answer: A

NEW QUESTION # 21
You have created a database user named edbuser with password 'password'. Which command grants connection rights to the edbstore database for user edbuser?

• A. GRANT CONNECT ON DATABASE edbstore TO edbuser;
• B. GRANT LOGIN ON DATABASE edbstore TO edbuser;
• C. GRANT ALL ON DATABASE edbstore TO edbuser;
• D. GRANT ACCESS ON DATABASE edbstore TO edbuser;

Answer: A

NEW QUESTION # 22
You need to restore a database from a compressed format backup file created with pg_dump -Fc option.
Which utility should you use?

• A. pg_basebackup
• B. psql
• C. pg_restore
• D. pg_dump

Answer: C

NEW QUESTION # 23
Which psql meta-command lists all schemas in the current database?

• A. \schemas
• B. \ls
• C. \ds
• D. \dn

Answer: D

NEW QUESTION # 24
Which psql command displays the command history?

• A. \history
• B. \h
• C. \log
• D. \s

Answer: D

NEW QUESTION # 25
What is the purpose of the checkpoint_timeout configuration parameter in PostgreSQL?

• A. To set backup timeout interval
• B. To define connection timeout
• C. To control the maximum time between automatic WAL checkpoints
• D. To set the time limit for query execution

Answer: C

NEW QUESTION # 26
Which directory in the PostgreSQL data directory contains the Write-Ahead Log files?

• A. pg_xlog
• B. wal_files
• C. pg_wal
• D. pg_log

Answer: C

NEW QUESTION # 27
Which parameter specifies the number of connections reserved for superusers in PostgreSQL?

• A. admin_connections
• B. reserved_connections
• C. superuser_reserved_connections
• D. max_superuser_connections

Answer: C

NEW QUESTION # 28
Which configuration parameter controls the amount of memory allocated for shared buffers?

• A. cache_size
• B. buffer_memory
• C. memory_buffers
• D. shared_buffers

Answer: D

NEW QUESTION # 29
You want to create a backup of all databases in a PostgreSQL cluster. Which utility should you use?

• A. pg_clusterbackup
• B. pg_backup
• C. pg_dump
• D. pg_dumpall

Answer: D

NEW QUESTION # 30
Which pg_dump option creates a backup that can be restored using pg_restore?

• A. -Ft (tar format)
• B. -Fp (plain text format)
• C. Both B and C
• D. -Fc (custom format)

Answer: C

NEW QUESTION # 31
You are connected to a PostgreSQL database. After executing a complex query an error message is displayed.
You want to edit and rerun the previously executed query. Which command can be used to edit the query buffer?

• A. \e
• B. e
• C. \r
• D. \l

Answer: A

NEW QUESTION # 32
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