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  • Exam Name: MySQL 8.0 Database Developer
  • Last Update: 23-Apr-2024
  • Questions and Answers: 65
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1z0-909 Questions and Answers

Question # 1

What is an advantage of using mysqli in PHP programs rather than using PHP Data Objects (PDO)?

A.

mysqli supports object oriented programming.

B.

mysqli can access databases from other vendors.

C.

mysqli supports non blocking, asynchronous queries.

D.

mysqli includes X DevAPI functions.

Question # 2

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.

Disable TLS/SSL authentication.

B.

Place this in the root directory of your shell account:

[mysqld] require__secure_transport=OFF

C.

Use blank RSA or SSL certificates.

D.

Upgrade the connector to a version that supports caching_sha2_password.

E.

Change the user account to use mysql_native_password.

Question # 3

Which select statement returns true?

A.

SELECT NULL <> NULL;

B.

SELECT NULL <=> NULL;

C.

SELECT NULL = NULL;

D.

SELECT NULL := NULL;

Question # 4

The meeting table stores meeting schedules with participants from five continents. The participants' details are stored in another table.

1z0-909 question answer

You need to adjust the start_time and duration columns for optimal storage. What datatype changes would achieve this?

A.

start_time TIMESTAMP duration TIMESTAMP

B.

start_time TIMESTAMP duration TIME

C.

start_time DATETIME duration DATETIME

D.

start_time TIME duration TIME

E.

start__time DATETIME duration TIME

Question # 5

You must reclaim memory used by a prepared statement named prep. Which two achieve this?

A.

SET @a = ''; EXECUTE prep USING @a;

B.

DEALLOCATE PREPARE prep?

C.

DROP PROCEDURE prep;

D.

SET @prep = NULL;

E.

DROP PREPARE prep;

F.

PREPARE prep FROM '';

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