In RAID level 5, _______ the data blocks are spread over separate drives and are

Question

In RAID level 5, _______ the data blocks are spread over separate drives and are duplicated. the array requires a minimum of two drives and is known as a striped array. the data and the parity data are striped across separate drives. the array requires a minimum of five drives and is known as duplexing. Which command(s) is used to restore the contents of a table to their original values? _______ RESTORE BACKUP COMMIT ROLLBACK On the server side, the DBMS environment must be properly configured to respond to clients requests in the fastest way possible, while making optimum use of existing resources. The activities required to achieve that goal are commonly referred to as _______ tuning. client and server database SQL performance DBMS performance The _______ data type is considered compatible with VARCHAR (35). DATE INT TINYINT CHAR (15) _______ security breaches include database access by computer viruses and by hackers whose actions are designed to destroy or alter data. Dangerous Preserving Corrupting Authorized If there is not index, the DBMS will perform a _______ scan. loop range row ID table access full table

Explanation / Answer

1.In RAID level5
Answer C: The data and the parity data are striped across separate drives

2.Which commands is used to restore the contents of a table to their original values?
Answer :D(ROLLBACK)

3.On the server side,the DBMS environment must be properly configured to respond to clients requests in the
fastest way possible,while making optimum use of exsisting resources.The activities required to achieve that
goal are commonly referred to as
Answer : D(DBMS performance)

4.The (CHAR(15) data type is considred compatible with VARCHAR(35)
Answer : D(CHAR(15)

5.security breached include database access by computer viruses and by hackers whose acions are designed to
destroy or alter data
Answer : C (Corrupting)

6.If there is not index, the DBMS will peform a____ scan
Answer: D(full table)

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