最新的Oracle Database Cloud認證 1Z0-998-20考試題庫

問題1

Which Oracle database editions and versions are supported on bare metal DB systems?

A. all database editions and DB versions starting from 11.2

B. all database editions and versions starting from 12c

C. all database editions and versions starting from 18c

D. all database editions and all versions

正確答案: D

問題2

You want to migrate your database from on-premises to OCI with no downtime. Which method would you use?

A. Data Guard

B. SQL Developer

C. Golden Gate

D. Data Pump

正確答案: A

說明：（僅 VCESoft 成員可見）

問題3

Examine the command:
dbcli describe-component
What information will you get by executing this command?

A. displays all the components related to the Object Storage

B. displays all the storage objects created

C. displays the installed patch versions for the DB system

D. displays the latest patch available for the DB system

正確答案: C

說明：（僅 VCESoft 成員可見）

問題4

What are the three autonomous optimizations available in Autonomous transaction processing database?

A. creates missing indexes

B. fast complex analytics

C. row data formats

D. columnar data formats

E. data caching to avoid IO

正確答案: A,C,E

問題5

What is the retention period for automatic incremental backups in Object Storage?

A. 7 days

B. 90 days

C. 180 days

D. 30 days

正確答案: D

問題6

You created a new PDB in a VM DB system and while creating a tablespace in the PDB an error is returned:
ORA-28374: typed master key not found in wallet.
What could be the possible reason?

A. Master key encryption is not activated for the new PDB.

B. TDE wallet does not exist.

C. Entry for the TDE wallet in the sqlnet.ora is missing.

D. TDE wallet is corrupted or lost.

正確答案: A

問題7

What might be the effect of modifying the firewall rules for 169.254.0.2:3260 and 169.254.0.3:80?

A. It allows the non-root user to access the database.

B. TDE for the database might stop working.

C. It allows the non-root users to modify the system's boot volume.

D. Users may not be able to connect to database service.

正確答案: C

說明：（僅 VCESoft 成員可見）

問題8

You administer a database that is configured in ARCHIVELOG mode. A full RMAN backup exists. In which two scenarios is RMAN incomplete recovery required?

A. if a copy of the multiplexed control file is lost

B. if all members of the CURRENT online redo log group are lost

C. if SYSTEM tablespace data file is lost

D. if all members of an ACTIVE online redo log group are lost when attempting to open the database

E. if the data file of an UNDO tablespace that is in use is lost

正確答案: A,C

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