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Oracle Cloud Database Services 2021 Specialist Sample Questions:

1. You define a maintenance window for your MySQL DB systems. When the automatic maintenance process takes place, which TWO activities does the system perform while its status is set to UPDATING? (Choose all correct answers)

A) It upgrades the associated compute instance to the latest Linux operating system version.
B) It patches the MySQL server itself along with any underlying hardware.
C) It analyzes, rebuilds, and optimizes MySQL database tables and indexes.
D) It patches the underlying operating system of the MySQL database.

2. Which two statements are true about changing the shape of a virtual machine (VM) database (DB) system to adapt to changes in performance needs?
(Choose all correct answers)

A) After you provision a VM DB system with a shape that supports Oracle RAC, you can change that shape to another shape that does not support Oracle RAC.
B) The shape of a VM DB system can be changed at any time, with no impact on the amount of storage available to the DB system.
C) If the current shape of the VM DB system supports Oracle Real Application Clusters (RAC), then you can only change that shape to another shape that also supports Oracle RAC.
D) It is possible to change the shape of a VM DB system with a higher number of OCPUs. However, reducing the number of OCPUs is not permitted.
E) After you provision a VM DB system, you cannot change the shape. You have to provision another VM DB system using a full backup.

3. Your MySQL Database Service system is automatically backed up between midnight and 1 AM. What must you do to change the starting time to 4 AM?

A) Use the mysqlbackup command to establish a 4 AM backup start time.
B) From the Edit MySQL DB System Details page, select Backup Window and set the start time to 4 AM.
C) Update the Oracle Cloud Infrastructure (OCI) MySQL DB System Details page to specify the 4 AM backup window start time.
D) Edit the OCI MySQL DB System Details to set the Enable Automatic Backups time to 4 AM.

4. The /u02 directory containing Oracle Homes (OH) is 80% utilized and you need to free up space in it. you own two Oracle Homes (OH193_A and OH193_B), each with a test database (193A and 193B respectively).You decide to consolidate both databases into a single Oracle Home (OH193. |_A) to free up space. Which TWO actions must you perform? (Choose all correct answers)

A) use the Move Database option from the console.
B) Copy the sqinet.ora file from OH193_B to OH193_A.
C) Create a new container under 0H193B and migrate the pluggable databases (PDBs) from 193B to 193A.
D) Schedule a downtime window with the Test teams who use the 193B database.

5. In a two-node Real Applications Cluster environment, the Internet and VCN Resolver are supported for DNS in the DB system. Which TWO tasks are required for the network setup? (Choose all correct answers)

A) After the VCN is created, modify the DNS settings to use DNS Hostnames.
B) Select the hostname field for a DNS label when the subnet is being created.
C) when creating the database, specify a value in the Hostname Prefix.
D) Select "Use DNS Hostnames in this VCN" as the VCN is being created.

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