You want to export the emp table to a CSV file with column headers using the COPY command. Which command should you use?

• A.COPY emp TO '/path/emp.csv' WITH CSV HEADER;
• B.EXPORT emp TO '/path/emp.csv' CSV HEADER;
• C.COPY emp TO '/path/emp.csv' DELIMITER ',' HEADER;
• D.COPY emp TO '/path/emp.csv' WITH CSV;

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

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

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You want to reload the PostgreSQL configuration without restarting the server. Which function should you execute?

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

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