Free Cheat-test Samples and Demo Questions Download
Adobe exams Adobe
Apple exams Apple
Avaya exams Avaya
Check Point exams Check Point
Cisco exams Cisco
Citrix exams Citrix
CIW exams CIW
CompTIA exams CompTIA
CWNP exams CWNP
EC-Council exams EC-Council
EMC exams EMC
Exin exams Exin
Fortinet exams Fortinet
GIAC exams GIAC
Hitachi exams Hitachi
HP exams HP
IBM exams IBM
Isaca exams Isaca
ISC exams ISC
ISEB exams ISEB
Juniper exams Juniper
LPI exams LPI
McAfee exams McAfee
Microsoft exams Microsoft
Oracle exams Oracle
PMI exams PMI
Riverbed exams Riverbed
SNIA exams SAP
Sun exams SAS
Symantec exams Symantec
VMware exams VMware
All certification exams

Oracle 1Z0-872 Exam - Cheat-Test.com

Free 1Z0-872 Sample Questions:

Q: 1
When executing multi-row operations, what should be the first thing you look for to see if anything unexpected happened?
A. Warning/Error Count.
B. Warning/Error Codes.
C. Warning/Error messages.
Answer: A

Q: 2
Which of the following is a valid method to restrict the amount of records returned from SHOW WARNINGS?
A. SHOW WARNINGS LIMIT
B. SHOW WARNINGS LIMIT
C. limit can not be used with show warnings
Answer: A,B

Q: 3
Consider the following statement: show COUNT (*) warnings what would be the result of executing this statement?
A. An error would be returned, as this is not valid syntax.
B. The number of current warnings would be returned.
C. The total number of warnings server-wide would be returned
Answer: B

Q: 4
Which of the following describe situations when MySQL generates warnings?
A. When it is not able to completely fulfill a request.
B. When a system-level error occurs.
C. When an action has possible unintended side-effects.
Answer: A,C

Q: 5
Which of the following statements are true?
A. The MylSAM storage engine should be preferred when you expect many reads and few updates to occur
B. The MylSAM storage engine should be preferred when you expect a mix of many reads and many updates to occur
C. The InnoDB storage engine should be preferred when you expect many reads and few updates to occur
D. The InnoDB storage engine should be preferred when you expect a mix of many reads and many updates to occur
Answer: A,D

Q: 6
For maximum efficiency in join operations of one column from each of two tables, which of the following statements regarding indexes are true?
A. In a LEFT JOIN such as table1 LEFT JOIN table2 ON table1 .a = table2.b, the column b in table2 should always be indexed
B. A LEFT JOIN would not benefit from either of the participating columns being indexed
C. In an INNER JOIN, either, but not both, columns participating in the join should be indexed
D. In an INNER JOIN, both columns participating in the join should be indexed
E. An INNER JOIN would not benefit from either of the participating columns being indexed
F. In a LEFT JOIN such as table 1 LEFT JOIN table2 ON table 1 .a = table2.b, the column a in table 1should always be indexed
Answer: A,D

Q: 7
Which of the following are valid optimization techniques?
A. Rewrite queries to use indexes
B. Use EXPLAIN
C. Use ORDER BY
Answer: A,B


© 2014 Cheat-Test.com, All Rights Reserved