What is the purpose of the PDO::exec() method in PHP PDO extension?
A). Executing SQL queries
B). Fetching data from the database
C). Inserting records into the database
D). Closing the database connection
What is the primary purpose of the mysqli_close() function in PHP?
A). Establishing a database connection
B). Inserting records into the database
C). Updating records in the database
D). Closing the database connection
Which operation is used to delete specific records from a database table using SQL?
A). DELETE
B). REMOVE
C). ERASE
D). CLEAR
Which statement is used to update existing records in a database table using SQL?
A). INSERT
B). SELECT
C). UPDATE
D). MODIFY
Which SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE
What is the primary function of the mysqli_num_rows() function in PHP?
A). Fetching data from the database
B). Inserting records into the database
C). Updating records in the database
D). Getting the number of rows in a result set
Which statement is used to create a new database table in SQL?
A). CREATE
B). INSERT
C). UPDATE
D). DELETE
What is the primary purpose of the mysqli_query() function in PHP?
A). Establishing a database connection
B). Inserting records into the database
C). Updating records in the database
D). Executing SQL queries
Which SQL operation is used to add new records to a database table?
A). CREATE
B). INSERT
C). ADD
D). APPEND
Which PHP function is used to execute an SQL query in PDO extension?
A). pdo_query()
B). pdo_execute()
C). pdo_fetch()
D). pdo_insert()