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
Which three statements are true about a self 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
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 DB_CACHE_SIZE=1024M;
What is the outcome?
A. The value is changed only in the PFILE and takes effect at the next instance startup
B. The value is changed for the current instance and in the PFILE
C. It fails because the SCOPE clause is missing
D. Change is applied to the current instance, but does not persist after instance restart
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)
Examine the description of the CUSTOMERS table:
For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?
A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers
WHERE cust_income_level IS NOT NULL
AND due_amount IS NOT NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND cust_credit_level !=NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level <> NULL AND due_amount <> NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND due_amount != NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;
Which two statements are true about single row functions? (Choose two.)
A. MOD : returns the quotient of a division operation
B. FLOOR : returns the smallest integer greater than or equal to a specified number
C. TRUNC : can be used to combine any number of values
D. CONCAT : can be used to combine any number of values
E. CEIL : can be used for positive and negative numbers
The EMPLOYEES table contains columns EMP_ID of data type NUMBER and HIRE_DATE of data type
DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORY parameter is set to AMERICA in the session and, therefore, Sunday is the first day
on the week.
Which query can be used?
A. SELECT emp_id, ADD_MONTHS(hire_date, 6), NEXT_DAY(`MONDAY') FROM employees;
B. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), `MONDAY') FROM employees;
C. SELECT emp_id, NEXT_DAY(MONTHS_BETWEEN(hire_date, SYSDATE), 6) FROM employees;
D. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) FROM employees;
Which two statements are true about trace files produced by the Oracle Database server? (Choose two.)
A. They can be written by server processes
B. Trace files are written to the Fast Recovery Area (FRA)
C. They can be written by background processes
D. All trace files contain error information that require contacting Oracle Support
E. Trace file names are based on the database name concatenated with a sequential number
Examine this description of the TRANSACTIONS table:
Which two SQL statements execute successfully? (Choose two.)
A. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100 "DUES" FROM transactions;
B. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 DUES FROM transactions;
C. SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100 "DUES AMOUNT" FROM transactions;
D. SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM transactions;
E. SELECT customer_id AS `CUSTOMER-ID', transaction_date AS DATE, amount + 100 `DUES AMOUNT' FROM transactions;
Which three statements are true regarding indexes? (Choose three.)
A. A UNIQUE index can be altered to be non-unique
B. A SELECT statement can access one or more indices without accessing any tables
C. A table belonging to one user can have an index that belongs to a different user
D. An update to a table can result in updates to any or all of the table's indexes
E. When a table is dropped and is moved to the RECYCLE BIN, all indexes built on that table are permanently dropped
F. An update to a table can result in no updates to any of the table's indexes
