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Oracle Database Administration I Sample Questions (Q63-Q68):

NEW QUESTION # 63
In the spfile of a single instance database, LOCALLISTENER is set to LISTENER1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:

Which statement is true?

• A. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
• B. The definition for LISTENER1 requires a CONNECTDATA section to enable dynamic service registration
• C. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
• D. The LREG process registers services dynamically with the LISTENER_1 listener
• E. Dynamic service registration cannot be used for this database instance

Answer: C Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
NEW QUESTION # 64
Which two statements are true about interval data types?

• A. INTERVAL day to second columns support fractions of seconds.
• B. INTERVAL year to month columns only support monthly Intervals within a single year.
• C. The year field in an interval year to month column must be a positive value.
• D. The value in an interval day to SECOND column can be copied into an interval year to month column.
• E. INTERVAL year to month columns only support monthly intervals within a range of years.
• F. INTERVAL year TO month columns support yearly intervals.

Answer: A,F
NEW QUESTION # 65
Your database instance is started with a PFILE.
Examine these parameters:

You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DBCACHESIZE=1024M;
What is the outcome?

• A. Change is applied to the current instance, but does not persist after instance restart
• B. The value is changed only in the PFILE and takes effect at the next instance startup
• C. It fails because the SCOPE clause is missing
• D. The value is changed for the current instance and in the PFILE

Answer: A Explanation:
https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902
NEW QUESTION # 66
Which two tasks can you perform using DBCA for databases? (Choose two.)

• A. Configure a nonstandard block size for a new database
• B. Configure incremental backups for a new database
• C. Enable flashback database for an existing database
• D. Change the standard block size of an existing database
• E. Register a new database with an available Enterprise Manager Management server

Answer: A,E
NEW QUESTION # 67
The stores table has a column STARTDATE of data type DATE, containing the date the row was inserted. You only want to display details of rows where STARTDATE is within the last 25 months. Which where clause can be used?

• A. WHERE MON'THSBETWEEN (SYSDATE, startdate) <= 25
• B. WHERE MON'THSBETWEEN (startdate, SYSDATE) <= 25
• C. WHERE ADDMONTHS<startdate, 25) <= SYSDATE
• D. WHERE TOXUMBER(startdate - SYSDATE) <= 25

Answer: B
NEW QUESTION # 68
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