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NEW QUESTION 27
A server hosts MySQL Server and Apache Webserver supporting a PHP/PDO based application.
The application must be migrated from PHP to their Java application server on another host. The MySQL instance remains on the original host.
Examine the PDO connection string used in the existing application:
Mysql:host-localhost;dbname=sales;unix_socket=/var/run/mysql.sock
Which two prevent Java from using the Unix socket?

• A. socket is a reserved word in Java.
• B. Java treats the socket file as insecure.
• C. The socket can only be accessed from the local host.
• D. The X Dev API protocol must be enabled to use sockets in Connector/J driver.
• E. The socket is not implemented in Connector/J driver.

Answer: B,E

NEW QUESTION 28
Your program which uses a MySQL connector receives this error:
Client does not support authentication protocol request by server
The account running the program uses caching_sha2_password.
Which two resolve this conflict?

• A. Change the user account to use mysql_native_password.
• B. Place this in the root directory of your shell account:
  [mysqld] require__secure_transport=OFF
• C. Upgrade the connector to a version that supports caching_sha2_password.
• D. Use blank RSA or SSL certificates.
• E. Disable TLS/SSL authentication.

Answer: C

NEW QUESTION 29
The employee table includes these columns:
e_id INT, e_name VARCHAR (45), dept_id INT salart INT
You must create a stored function, getMaxSalary(), which returns the maximum salary paid for a given department id.
Which statement will create the function?

• A.
• B.
• C.
• D.

Answer: A

NEW QUESTION 30
Which two statements are true about aggregate functions?

• A. MAX () returns null if there are no rows to aggregate.
• B. MIN () cannot use distinct when it executes as a Windows function.
• C. COUNT (distinct) returns a count of the number of rows with different values including Null.
• D. SUM () returns o if there are no rows to aggregate.
• E. AVG () does not allow use of the distinct option.

Answer: E

NEW QUESTION 31
Examine this statement which has executed successfully:

• A. Execution performance can be improved by using like instead of RLIKE.
• B. Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.
• C. The statement takes advantage of index description_idx.
• D. Execution performance can be improved by adding an index on column description.
• E. No index will improve statement performance.

Answer: A

NEW QUESTION 32
......

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