1z0-497 무료 덤프문제 온라인 액세스

You are about to install Oracle Database 12c Enterprise Edition. Which statement is true?

• A.Cloning an Oracle home is useful if you are performing multiple Oracle Database Installations.
• B.Oracle recommends that you back up the root. sh script after you complete the installation.
• C.A multitenant container database (CDB) can have several pluggable databases (PDBs) with different character sets.
• D.You should not install the Oracle Database software into an existing Oracle home from a different release.
• E.You can stop existing Oracle processes, including the listener and the database running in the Oracle home, before the database software installation.

Which statement is true regarding this connect string?
(DESCRIPTION
(FAILOVER=on)
(ADDRESS_LIST=
(LOAD_BALANCE=ON)
(ADDRESS=(host=sales-east1) (port=1522) )
(ADDRESS=(host=sales-east2)(port=1522))
(ADDRESS=(host=sales-east3) (port=1522) ))
(ADDRESS_LIST=
(LOAD_BALANCE=ON)
(ADDRESS=(host=sales-west1) (port=1522) )
(ADDRESS=(host=sales-west2) (port=JS22))
(ADDRESS=(host=sales-west3) (port=lS22) ) )
(CONNECT_DATA=
(SERVICE_NAME=sales)
(REGION=east)))

• A.Client-side load balancing has been enabled only for the global service managers within the client's buddy (west).
• B.The REGION parameter is optional.
• C.Connect-time failover between regions has not been enabled.
• D.It contains three global service managers in the client's local region (east).

Your customer needs server availability that provides uninterrupted access to database services, handling any unexpected failure of one or more machines hosting the database server, due to a hardware or software fault. Which product should your customer use?

• A.Oracle Data Guard
• B.Oracle GoldenGate
• C.Oracle Real Application Clusters
• D.Oracle Streams

Which two statements are true when you execute an invoker's rights procedure?

• A.Invoking users can control who can access their privileges when they run an invoker's rights procedure.
• B.The calling user must be granted the INHERIT PRIVILEGES object privilege on the user owner of the procedure.
• C.The calling user must grant the INHERIT PRIVILEGES object privilege on the user owner of the procedure.
• D.The owner must have the INHERIT PRIVILEGES object privilege on the invoking user, or the INHERIT ANY PRIVILEGES privilege.

You connect to a database instance and execute a DML command that changes one data block. The block is read from the buffer cache, modified, and modified, and marked as dirty. You commit the transaction. What must take place before the block can be written to disk?

• A.A log writer (LGWR) must write all redo entries that have been copied into the buffer since the last time it wrote.
• B.The buffer must be written to flash cache.
• C.The modified data block must be moved from the LRU list to the write queue.
• D.The database must advance the checkpoint.