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New Oracle 1Z1-921 Test Price | Free Sample 1Z1-921 Questions
There is no doubt that we all dream of working for top companies around the globe. Some people make it through but some keep on thinking about how to break that glass. If you are among those who belong to the latter category, you should start the preparations for the MySQL 2021 Implementation Essentials (1Z1-921) certification exam to improve your knowledge, expertise and crack even the toughest interview easily.
Oracle 1Z0-921 (MySQL 2021 Implementation Essentials) exam is a certification exam designed for individuals who want to demonstrate their expertise in implementing and managing MySQL databases. 1Z1-921 exam measures the candidate's knowledge and skills in areas such as database architecture, security, backup and recovery, performance tuning, and high availability. Passing 1Z1-921 Exam validates the candidate's ability to install, configure, and maintain MySQL databases, making them highly desirable to potential employers.
Oracle MySQL 2021 Implementation Essentials Sample Questions (Q70-Q75):
NEW QUESTION # 70
Which three options are valid reasons for using a primary key in a table?
- A. maintaining a history of row insertions or updates
- B. automatic storage of data in a sorted order
- C. increasing performance when using select statements
- D. preventing duplicate keys
- E. to make it easier to change the PRIMARY KEY value
- F. exporting data faster with mysqldump
Answer: C,D,F
NEW QUESTION # 71
You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?
- A. The table statistics will be stored.
- B. The table storage space will be reduced.
- C. The table will be optimized and replicated.
- D. The table will be checked for errors and repaired.
Answer: C
NEW QUESTION # 72
Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?
- A. The opc user can be used to access MySQL only with the created SSH-Key.
- B. You forgot to create the correct SSL/TLC certificate during the setup process.
- C. You forgot to enable port 3306.
- D. The OCI instance is still in the "creation" process.
- E. Only root is allowed to access from non-localhost.
Answer: C
NEW QUESTION # 73
An Oracle Cloud Infrastructure customer already has many database instances configured and running in the cloud; however, they are reporting that they are unable to create any more instances.
What could be the problem?
- A. The customer has not kept up with their patching requirements; new instances cannot be created unless the majority or the template of existing instances are up-to-date.
- B. The customer does not have proper user rights.
- C. The customer account might have reached resource quota/limits.
- D. The customer reached the database instance limit of 32.
Answer: D
NEW QUESTION # 74
MySQL Enterprise Masking and De-identification can hide or obfuscate sensitive data, by controlling how the data appears. Which three are MySQL Enterprise Masking and De-identification functions?
- A. strict or relaxed masking
- B. whitelisting and substitution
- C. misspelling
- D. dictionary substitution
- E. random data substitution
Answer: A,D,E
NEW QUESTION # 75
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