DUMP 1Z1-921 COLLECTION & 1Z1-921 SIMULATED TEST

Dump 1Z1-921 Collection & 1Z1-921 Simulated Test

Dump 1Z1-921 Collection & 1Z1-921 Simulated Test

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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q44-Q49):

NEW QUESTION # 44
You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img

You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?

  • A.
  • B.
  • C.
  • D.
  • E.

Answer: A


NEW QUESTION # 45
Which statement would you use to remove the population column from the city table?

  • A. DROP population FROM city;
  • B. ALTER TABLE city DROP population;
  • C. ALTER TABLE city DELETE population;
  • D. DELETE population FROM city;
  • E. ALTER TABLE city LESS population;

Answer: B


NEW QUESTION # 46
Which activity will take place if a table is created with both the compression and encryption options?

  • A. The compression is performed before tablespace data is encrypted.
  • B. The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
  • C. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
  • D. The tablespace data is encrypted first and then compression is performed.

Answer: A


NEW QUESTION # 47
Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?

  • A. Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
  • B. Allocating more CPU to the database instance to improve throughput performance.
  • C. Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
  • D. Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.
  • E. Increasing the storage capacity so that the database can store more data to scale.

Answer: E


NEW QUESTION # 48
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 will be checked for errors and repaired.
  • C. The table storage space will be reduced.
  • D. The table will be optimized and replicated.

Answer: D


NEW QUESTION # 49
......

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