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Oracle 1Z0-921 Dumps Discount, Reliable 1Z0-921 Test Bootcamp

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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q42-Q47):

NEW QUESTION # 42
What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:

A. PVC (Persistent Volume Claim) and PV (Persistent Volume)
B. Pod and ReplicaSet
C. Secret and Deployment
D. PVC (Persistent Volume Claim) and ConfigMap

Answer: A

NEW QUESTION # 43
You want to create an encrypted table. So, you enter this command:
CREATE TABLE 'test_encryption2% (
'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
'server_name' varchar(15) NOT NULL,
PRIMARY KEY ('id') ) ENGINE=MYISAM AUTO_INCREMENT=l DEFAULT CHARSET=latin1 ENCRYPTION = 'Y1; You receive the following error:
ERROR 1031 (HY000): Table storage engine for 'test_encryption2' doesn't have this option Which statement correctly explains the reason for this error?

A. The encryption feature only works with InnoDB tables. You are creating a MylSAM table, and it is causing the error.
B. The test_encryption2 already exist. You are not using the correct option to recreate it and it is causing the error.
C. The term "server_name" is a reserved MySQL term. You cannot use it for the new table. This is what is causing the error.
D. You cannot use the AUTO_INCREMENT option to create an encrypted table. This is what is causing the error.

Answer: A

NEW QUESTION # 44
You execute this statement:
SELECT NULL=NULL;
What is the result?

A. TRUE
B. 0
C. 1
D. NULL
E. FALSE

Answer: D

NEW QUESTION # 45
Which three are characteristics of the JSON data type?

A. It supports indexing directly against the JSON-defined column.
B. A set of SQL functions substantially support the SQL utilization of the data type.
C. Key or array references enable quick read-access to look up document elements directly.
D. It validates the JSON syntax on insert or merge.
E. Comparisons of JSON values are not case-sensitive.
F. It is based on the TEXT data type.

Answer: A,C,D

NEW QUESTION # 46
Which three options are valid reasons for using a primary key in a table?

A. preventing duplicate keys
B. to make it easier to change the PRIMARY KEY value
C. exporting data faster with mysqldump
D. maintaining a history of row insertions or updates
E. automatic storage of data in a sorted order
F. increasing performance when using select statements

Answer: A,C,F

NEW QUESTION # 47
......

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