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Database

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37.) It is better to use files than a DBMS when there are

A) Stringent real-time requirements.

B) Multiple users wish to access the data.

C) Complex relationships among data.

D) All of the above.

View Answer 

Answer:  Option  B


38.) Which of the following is a valid SQL type?

A)      CHARACTER

B)      NUMERIC

C)      FLOAT

D)      All of the above

  View Answer 

Answer:  Option  D


39.) Which of the following is an advantage of view?

A)      Data security

B)      Derived columns

C)      Hiding of complex queries

D)      All of the above

View Answer 

Answer:  Option  D


40.) Which database level is closest to the users?

A)      External

B)      Internal

C)      Physical

D)      Conceptual

View Answer 

Answer:  Option  A


41.) A set of possible data values is called

A)      Attribute.

B)      Degree.

C)      Tuple.

D)      Domain.

View Answer 

Answer:  Option  D


42.) Which of the following is another name for weak entity?

A)      Child

B)      Owner

C)      Dominant

D)      All of the above

  View Answer  

Answer:   Option   A

 
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Oracle Certification

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The Oracle Certification Program is a professional certification program offered by the Oracle Corporation. There are three levels of Oracle Certification in several disciplines: Oracle Certified Associate (OCA), Oracle Certified Professional (OCP), and Oracle Certified Master (OCM).

Java Certification

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Sun Certified Professional (SCP) is a professional certification program by Sun Microsystems, a subsidiary of Oracle Corporation. There are two levels of java Certification in several disciplines: Sun Certified Java Associate (SCJA), Sun Certified Java Programmer (SCJP), and Sun Certified Java Developer (SCJD)

Red Hat Certification

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The Red Hat Certification Program is Red Hat's professional certification program for Red Hat and general Linux related skills such as system administration on Red Hat Enterprise Linux Red Hat Certified Technician (RHCT)  and Red Hat Certified Engineer (RHCE)