Free Access Oracle.1Z0-082.v2022-07-18.q111 Practice Test (Page 19)

Question 86

You want to use table compression suitable for OLTP that will:
1. Compress rows for all DML statements on that table
2. Minimize the overheads associated with compression
Which compression option is best suited for this?

A.COLUMN STORE COMPRESS FOR QUERY LOW

B.ROW STORE COMPRESS BASIC

C.COLUMN STORE COMPRESS FOR ARCHIVE LOW

D.COLUMN STORE COMPRESS FOR ARCHIVE HIGH

E.ROW STORE COMPRESS ADVANCED

Question 87

Which two statements are true about views used for viewing tablespace and datafile information?
(Choose two.)

A.A datafile can be renamed when the database is in MOUNT state and the new file name is displayed when querying DBA_DATA_FILES after the database is opened

B.V$TABLESPACE displays information about tablespaces contained in the data dictionary

C.V$TABLESPACE displays information that is contained in the controlfile about tablespaces

D.Tablespace free space can be viewed in DBA_TABLESPACES

E.Tablespace free space can be viewed in V$TABLESPACE

Question 88

Which three statements are true regarding indexes? (Choose three.)

A.A SELECT statement can access one or more indices without accessing any tables

B.A UNIQUE index can be altered to be non-unique

C.When a table is dropped and is moved to the RECYCLE BIN, all indexes built on that table are permanently dropped

D.An update to a table can result in updates to any or all of the table's indexes

E.A table belonging to one user can have an index that belongs to a different user

F.An update to a table can result in no updates to any of the table's indexes

Question 89

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 <> NULL
AND due_amount <> 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 IS NOT NULL
AND cust_credit_limit IS NOT NULL;

D.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;

E.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level != NULL
AND due_amount != NULL;

Question 90

Which two statements are true about Enterprise Manager Database Express? (Choose two.)

A.It is available only when the database is open

B.It can be used to switch a database into ARCHIVELOGMODE

C.The same port number can be used for Database Express configurations for databases on different hosts

D.The same port number can be used for multiple Database Express configurations for multiple databases on the same host

E.It can be used to perform database recovery

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Question 86

Question 87

Question 88

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Question 90

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