[Q10-Q32] The Most Efficient PostgreSQL-Essentials Pdf Dumps For Assured Success [2026]

The Most Efficient PostgreSQL-Essentials Pdf Dumps For Assured Success [2026]

We offers you the latest free online PostgreSQL-Essentials dumps to practice

EnterpriseDB PostgreSQL-Essentials Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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.
Topic 3	Database Maintenance: This section of the exam measures the skills of Database Administrators and covers maintenance operations such as updates, indexing, and performance optimization. The focus is on ensuring long-term database efficiency, integrity, and minimal downtime.
Topic 4	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 5	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.

 

NEW QUESTION # 10
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 # 11
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 # 12
Which parameter controls the amount of memory allocated for maintenance operations like VACUUM and CREATE INDEX?

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

Answer: D

NEW QUESTION # 13
You want to configure your cluster to run in archive mode for Point-in-Time Recovery. Which parameter must you set in postgresql.conf?

• A. archiving = on
• B. wal_archive = on
• C. backup_mode = on
• D. archive_mode = on

Answer: D

NEW QUESTION # 14
You are working as a Postgres DBA. You want to configure logging for slow running queries on your database cluster. Which setting needs to be modified to log all the queries which take more than 5 seconds?

• A. log_statement
• B. log_destination
• C. log_min_duration_statement
• D. log_duration

Answer: C

NEW QUESTION # 15
You need to reload the PostgreSQL configuration without restarting the server. Which function should you use?

• A. reload_configuration()
• B. pg_restart_conf()
• C. pg_reload_conf()
• D. refresh_config()

Answer: C

NEW QUESTION # 16
You need to reclaim storage occupied by dead tuples in the customers table. Which command should you use?

• A. VACUUM customers;
• B. ANALYZE customers;
• C. REINDEX customers;
• D. CLUSTER customers;

Answer: A

NEW QUESTION # 17
Which of the following statements is true about PostgreSQL 13?

• A. ALTER CLUSTER writes the setting to a file called postgresql.auto.conf
• B. ALTER CLUSTER writes the setting to a file called postgresql.conf
• C. ALTER SYSTEM writes the setting to a file called postgresql.conf
• D. ALTER SYSTEM writes the setting to a file called postgresql.auto.conf

Answer: D

NEW QUESTION # 18
Which of the following commands in psql will execute SQL commands from a file?

• A. \e filename
• B. \i filename
• C. \x filename
• D. \f filename

Answer: B

NEW QUESTION # 19
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 # 20
You need to configure your server to accept TCP/IP connections from specific IP addresses. Which file should you modify?

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

Answer: C

NEW QUESTION # 21
Which pg_restore option allows you to drop database objects before recreating them?

• A. --drop-all
• B. -r
• C. -c or --clean
• D. -d

Answer: C

NEW QUESTION # 22
In PostgreSQL, which command is used to analyze database statistics for the query planner?

• A. VACUUM
• B. ANALYZE
• C. CLUSTER
• D. REINDEX

Answer: B

NEW QUESTION # 23
Which parameter must be set to enable WAL archiving for Point-in-Time Recovery in PostgreSQL 13?

• A. wal_level = archive
• B. wal_level = replica
• C. wal_level = logical
• D. wal_level = minimal

Answer: B

NEW QUESTION # 24
Which psql meta-command lists all schemas in the current database?

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

Answer: D

NEW QUESTION # 25
Which psql command toggles the display of tuples only (without column headers)?

• A. \t
• B. \a
• C. \h
• D. \x

Answer: A

NEW QUESTION # 26
Which query displays the name and size of all databases in your cluster using a meaningful unit?

• A. SELECT datname, pg_size_pretty(pg_database_size(datname)) AS size FROM pg_database;
• B. SHOW DATABASE SIZE;
• C. SELECT name, size FROM pg_database;
• D. SELECT datname, pg_database_size(datname) FROM pg_database;

Answer: A

NEW QUESTION # 27
In PostgreSQL, what is the default size of a WAL segment file?

• A. 32 MB
• B. 8 MB
• C. 64 MB
• D. 16 MB

Answer: D

NEW QUESTION # 28
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 # 29
In PostgreSQL 13, which parameter must be set to enable WAL archiving for Point-in-Time Recovery?

• A. archive_level must be set to full
• B. wal_archiving must be set to on
• C. wal_level must be set to replica or higher
• D. backup_mode must be set to archive

Answer: C

NEW QUESTION # 30
You need to restore only the schema from a custom format backup file. Which pg_restore option should you use?

• A. --data-only
• B. --schema-only
• C. Both B and C
• D. -s

Answer: C

NEW QUESTION # 31
You want to gracefully terminate a user's connection to the database. Which function should you use?

• A. pg_cancel_backend(pid)
• B. pg_kill_backend(pid)
• C. pg_disconnect_backend(pid)
• D. pg_terminate_backend(pid)

Answer: D

NEW QUESTION # 32
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