Which PHP function is used to establish a connection to a MySQL database server using MySQLi extension?
A). mysqli_connect()
B). mysqli_query()
C). mysqli_fetch_assoc()
D). mysqli_close()
What is the purpose of the PDO::query() method in PDO extension?
A). Establishing a connection to a database
B). Executing an SQL statement
C). Fetching data from the database
D). Closing the database connection
What is the primary function of the mysqli_connect() function in PHP?
A). Establishing a connection to a MySQL database
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
What is the primary advantage of using prepared statements in MySQLi and PDO?
A). Improved security and protection against SQL injection
B). Faster execution of SQL queries
C). Simpler syntax for SQL statements
D). Compatibility with older PHP versions
What is the purpose of the PDO::lastInsertId() method in PDO extension?
A). Retrieving the ID generated by the last INSERT statement
B). Executing an SQL query
C). Fetching data from the database
D). Closing the database connection
Which of the following functions is used to prepare an SQL statement for execution with parameters in MySQLi extension?
A). mysqli_query()
B). mysqli_prepare()
C). mysqli_fetch_array()
D). mysqli_close()
Which of the following statements is true regarding database connections in PHP applications?
A). Database connections should be properly closed after use
B). Database connections are automatically closed by PHP
C). Keeping database connections open improves performance
D). Multiple simultaneous database connections are recommended
What is the purpose of the PDO::setAttribute() method in PDO extension?
A). Setting attributes for the PDO connection
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
Which of the following methods is used to execute a prepared statement with parameters in MySQLi extension?
A). mysqli_prepare()
B). mysqli_query()
C). mysqli_bind_param()
D). mysqli_execute()
Which of the following statements is true regarding parameterized queries in MySQLi and PDO?
A). They prevent SQL injection attacks
B). They improve database performance
C). They can only be used with SELECT queries
D). They require additional server resources