Oracle 19C OCP 1z0-082 certification examination question bank (42-50)

42.Your database instance is started with an SPFILE.
A PFILE is also available
You execute this command
ALTER SYSTEM SET DB CACHE_SIZE=100K
Where is the value changed?
A.in the SPFILE and PFTIE
B.in the SPFILE, PFILE, and memory
C.only in the SPFILE
D.in the SPFILE and in memory
E.only in memory
answer ： D

43.The ORCL database has RESUMABTE_TIMEOUT =7200 and DEFERRED SEGMENT CREATION=FALSE
User U1 has a 1 MB quota in tablespace DATA. Ul executes this command

Ul complains that the command is taking too long to execute
In the alert log, the database administrator (DBA ) finds this 2017-03-06912:15:17.183438+05:30
statement in resumable session 'User U1(136), session 1, Instance 1 ’ was suspended due to ORA-01536: space quota exceeded for tablespace ‘DATA’
Which are three actions any one of which the DBA could take take to resume the session?
A.Set AUTOEXTEND ON for data files in DAMA
B.Set DEFERRED SEGMENT CREATION to TRUE
C.Increase Ul’s quota sufficiently in DATA
D.Grant UNLIMIRED TABLESPACE to U1
E.Drop other U1 objects in DAT2
F. Add a data file to DATA
answer ： CDE
RESUMABTE_TIMEOUT Specify the time to wait when there is not enough space

44.While one of your databases was in mount state, the datafiles were renamed because they had been moved to a new file system
The database was then opened Which two statements are true?
A.DBA_DATA_FILES displays both the new name and the old name for the data files
B.DBA_DATA_FILES displays the original name for the data files
C.V$DATAEILE displays the new names for the data files
D.DBA_DATA_FILES must be resynchronized manually with the control file in order to have it display the new file names
E.DBA_DATA_FILES displays the new name for the data files
answer ： CE

45.Which two statements are true about Database Instances and Real Application Clusters(RAC)
A.A RAC database can have instances on separate servers
B.A RAC database can have one instance
C.A RAC database must have two or more instances
D.Two RAC databases can share their instances
E.A RAC database must have three or more instances
answer ： AC

46.The SALES_Q1 and USERS tablespaces exist in one of your databases And TEMP is a temporary tablespace.
Segment creation is not deferred. You execute this command

Which three statements must be true so that the sales user can create tables in SALES_Q1?
A.The sales user must have been granted the CREATE TABLE privilege
B.The sales user must have been granted the CREATE SESSION privilege
C.The sales user must have a quota on the TEMP tablespace
D.The sales user must have a quota on the SALES_Q1 tablespace to hold the initial extents of all tables they plan to create in their schema
E.The sales user must have a quota on the SALES_Q1 tablespace to hold all the rows to be inserted into any table in their schema
F. The sales user must have their quota on the users tablespace removed
answer ： ABD

47.Which two statements are true about the DUAL table?
A.It can display multiple rows and columns
B.It can be accessed only by the sys user.
C.It can display multiple rows but only a single column
D.It can be used to display only constants or pseudo columns
E.It can be accessed by any user who has the SELECT privilege in any schema
F.It consists of a single row and single column of VARCHAR2 data type
answer ： EF

48.Which three statements are true about the DESCRIBE command?
A.It can be used from SQL Developer.
B.It displays all constraints that are defined for each column
C.It can be used only from SQL*Plus
D.It displays the PRIMARY KEY constraint for any column or columns that have that constraint.
E.It displays the NOT NULL constraint for any columns that have that constraint.
F.It can be used to display the structure of an existing view
answer ： AEF

49.Which two queries execute successfully?
A.SELECT NULLIF(100, 100) FROM DUAL
B.SELECT NULLIF(100,A) FROM DUAL;
C.SELECT COALESCE(100, ‘A’) FROM DUAL;
D.SELECT COALESCE(100, NULL, 200) FROM DUAL;
E.SELECT NULLIF(NULL, 100) FROM DUAL;
answer ： AD The title is wrong ？？？

50.Which three statements are true about inner and outer joins?
A.Outer joins can be used when there are multiple join conditions on two tables
B.Outer joins can only be used between two tables per query
C.A left or right outer join returns only unmatched rows
D.A full outer join returns matched and unmatched rows
E.An inner join returns matched rows
F. A full outer join must use Oracle syntax
answer ： ADE

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