What is the primary advantage of using PDO over MySQLi for database access in PHP?
A). Portability across different databases
B). Better performance
C). Easier syntax
D). More features
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
Which PHP extension offers a consistent interface for accessing different database engines, including MySQL, PostgreSQL, and SQLite?
A). MySQL
B). PDO
C). SQLI
D). MySQLi
What is the primary purpose of database connection pooling in PHP applications?
A). Improving scalability and performance
B). Enhancing database security
C). Simplifying database configuration
D). Reducing server resource usage
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 is NOT a step in connecting to a MySQL database using PDO extension?
A). Create a PDO object
B). Set database credentials
C). Execute an SQL query
D). Handle connection errors
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
Which of the following is NOT a valid database driver supported by PDO extension?
A). MySQL
B). PostgreSQL
C). MongoDB
D). SQLite
What does PDO stand for in the context of PHP database access?
A). PHP Database Objects
B). PHP Data Operations
C). PHP Data Objects
D). PHP Database Extensions