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QUESTION 1

Which two statements are true regarding a SAVEPOINT? (Choose two.)

A. Rolling back to a SAVEPOINT can undo a CREATE INDEX statement
B. Rolling back to a SAVEPOINT can undo a TRUNCATE statement
C. Only one SAVEPOINT may be issued in a transaction
D. A SAVEPOINT does not issue a COMMIT
E. Rolling back to a SAVEPOINT can undo a DELETE statement

Correct Answer: DE

QUESTION 2

In which three situations do a new transaction always start? (Choose three.)

A. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the same session

B. when issuing a TRUNCATE statement after a SELECT statement was issued in the same session

C. when issuing a CREATE TABLE statement after a SELECT statement was issued in the same session

D. when issuing the first Data Manipulation Language (DML) statement after a COMMIT OR ROLLBACK statement was issued in the same session

E. when issuing a CREATE INDEX statement after a CREATE TABLE statement completed successfully in the same session

F. when issuing a DML statement after a DML statement failed in the same session

Correct Answer: ADE

A transaction begins when the first executable SQL statement is encountered. An executable SQL statement is a SQL
statement that generates calls to a database instance, including DML and DDL statements and the SET
TRANSACTION statement. A transaction ends when any of the following actions occurs: A user issues a COMMIT or
ROLLBACK statement without a SAVEPOINT clause. Answer D A user runs a DDL command such as CREATE,
DROP, RENAME, or ALTER. The database issues an implicit COMMIT statement before and after every DDL
statement. If the current transaction contains DML statements, then Oracle Database first commits the transaction and then runs and commits the DDL statement as a new, single-statement transaction.
o SELECT do not have a transaction start/end. Check by command: SELECT XID AS “txn id”, XIDUSN AS “undo seg”, XIDSLOT AS “slot”, XIDSQN AS “seq”, STATUS AS “txn status” FROM V$TRANSACTION;

https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/transactions.html#GUID-7690181F8293-47B9-ADC1-905BD9C3AF57

QUESTION 3

Which two are true about shrinking a segment online? (Choose two.)

A. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
B. It always eliminates all migrated rows if any exist in the table
C. To shrink a table it must have a PRIMARY KEY constraint
D. To shrink a table it must have a UNIQUE KEY constraint
E. To shrink a table it must have row movement enabled
F. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)

Correct Answer: EF

Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_3001.htm

QUESTION 4

Which three Oracle database space management features will work with both Dictionary and Locally managed tablespaces? (Choose three.)

A. Oracle Managed Files (OMF)
B. Online table segment shrink
C. Online index segment shrink
D. Automatic data file extension (AUTOEXTEND)
E. Capacity planning growth reports based on historical data in the Automatic Workload Repository (AWR)

Correct Answer: ADE

QUESTION 5

Which two statements are true about the PMON background process? (Choose two.)

A. It registers database services with all local and remote listeners known to the database instance
B. It frees resources held by abnormally terminated processes
C. It records checkpoint information in the control file
D. It frees unused temporary segments
E. It kills sessions that exceed the idle time

Correct Answer: BE

Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14220/process.htm

QUESTION 6

Which three statements are true about the DESCRIBE command? (Choose three.)

A. It displays the PRIMARY KEY constraint for any column or columns that have that constraint
B. It can be used by SQL Developer
C. It displays the NOT NULL constraint for any columns that have that constraint
D. It can be used to display the structure of an existing view
E. It displays all constraints that are defined for each column
F. It can be used only from SQL*Plus

Correct Answer: BCD

QUESTION 7

Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)

A. Connect Time Failover requires the use of Transparent Application Failover (TAF)

B. Source Routing requires the use of a name server

C. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall

D. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration

E. Load Balancing requires the use of a name server

F. Connect Time Failover requires the connect string to have two or more listener addresses configured

Correct Answer: CDF

Reference: https://docs.oracle.com/cd/E11882_01/network.112/e41945/advcfg.htm#NETAG013

QUESTION 8

The SCOTT/TIGER user exists in two databases, BOSTON_DB and DALLAS_DB, in two different locations.
Each database has a tnsnames. ora file defining DALLAS_DB as a service name.

Examine this command: CREATE DATABASE LINK dblink1 CONNECT TO Scott IDENTIFIED BY tiger USING
`dallas_db\’;
How do you execute the command so that only SCOTT in BOSTON_DB can access the SCOTT schema in
DALLAS_DB?

A. as SCOTT in DALLAS_DB
B. as SCOTT in BOSTON_DB
C. as SCOTT in BOSTON_DB and SYS in DALLAS_DB
D. as SYS in both the databases
E. as SCOTT in both the databases

Correct Answer: B

Database links are either private or public. If they are private, then only the user who created the link has access; if they are public, then all database users have access.

https://docs.oracle.com/cd/B28359_01/server.111/b28310/ds_concepts002.htm#ADMIN12085
https://docs.oracle.com/database/121/SQLRF/statements_5006.htm#SQLRF01205

QUESTION 9

Which three statements are true about Oracle synonyms? (Choose three.)

A. A synonym cannot be created for a PL/SQL package
B. A synonym can be available to all users
C. A SEQUENCE can have a synonym
D. A synonym created by one user can refer to an object belonging to another user
E. Any user can drop a PUBLIC synonym

Correct Answer: BCD

Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_7001.htm

QUESTION 10

Which two statements are true about space-saving features in an Oracle Database? (Choose two.)

A. Private Temporary Tables (PTTS) store metadata in memory only

B. An index created with the UNUSABLE attribute has no segment

C. If they exist for a session, Private Temporary Tables (PTTs) are always dropped at the next COMMIT OR
ROLLBACK statement

D. An index that is altered to be UNUSABLE will retain its segment

E. A table that is truncated will always have its segment removed

Correct Answer: AB

A – https://oracle-base.com/articles/18c/private-temporary-tables-18c Oracle 18c introduced the concept of a private temporary table, a memory-based temporary table that is dropped at the end of the session or transaction depending on the setup. B – https://docs.oracle.com/html/E25494_01/indexes003.htm#CIHFIGDG Beginning with Oracle Database 11g Release 2, the database does not create an index segment when creating an unusable index. C – not always, depends on the setup of the table creation

QUESTION 11

Which three statements are true about a self to join? (Choose three.)

A. The ON clause must be used
B. The query must use two different aliases for the table
C. It must be an equijoin
D. It must be an inner join
E. The ON clause can be used
F. It can be an outer join

Correct Answer: BEF

QUESTION 12

Examine the description of the BOOKS table:

The table has 100 rows.

Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES (ADV112\\',Adventures of Tom Sawyer\’, NULL, NULL);
SAVEPOINT a;
DELETE FROM books;
ROLLBACK TO SAVEPOINT a;
ROLLBACK;
Which two statements are true? (Choose two.)

A. The second ROLLBACK command does nothing

B. The second ROLLBACK command replays the delete

C. The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed

D. The second ROLLBACK command undoes the insert

E. The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row

Correct Answer: CD

……

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