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Total 276 questions
You have the following flowchart:
Use the drop-down menus to select the answer choice that completes each statement
Each correct selection is worth one point.
Answer :
Explanation:
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Which language uses Data Definition Language (DDL) and Data Manipulation Language
(DML)?
- A. SQL
- B. C++
- C. Pascal
- D. Java
Answer : A
Explanation: SQL uses DDL and DML.
For each of the following statements, select Yes if the statement is true. Otherwise, select
No. Each correct selection is worth one point.
Answer :
Explanation:
C:\Users\Kamran\Desktop\image.jpg
How many parameters can a default constructor have?
- A. 0
- B. 1
- C. 2
- D. 3 or more
Answer : A
Explanation: If a class contains no instance constructor declarations, a default instance constructor is automatically provided. That default constructor simply invokes the parameterless constructor of the direct base class.
You have a server that limits the number of data connections.
What should you use to optimize connectivity when the number of users exceeds the number of available connections?
- A. Connection timeouts
- B. Named pipes
- C. Normalization
- D. Connection pooling
Answer : D
Explanation: In software engineering, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required.
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