Exam

Please read the questions first, think about what you are asked, and then provide your thoughts and ideas. Your responses should be your own, and based on your understanding, knowledge, and creativity, short & firm.

1. Describe the DBA’s managerial role.

ANSWER:

2. Explain user requirements gathering as part of the DBA's end-user support services.

ANSWER:

3. Explain conflict and problem resolution as part of the DBA’s end­user support services.

ANSWER:

4. The testing and evaluation of a database application cover all aspects of the system—from the simple collection and creation of data to its use and retirement. What is covered by the evaluation process?

ANSWER: -

5-What is data visualization? Name different techniques of data visualization.

ANSWER:

6-What is the difference between decision support data and operational data from the point of view of data analyst?

ANSWER:

7-In your word very short and firm (One sentence with limited number of words) define the function of a device called MODEM (Modulator & Demodulator).

8- The following System is a Time Invariant system

ASSUMPTONS

X (t) =INPUT Y (t) = OUTPUT

Answer the following question:

X1 (t) Y1 (t)

X2 (t) =X1 (t-T) t= time variable, T=Constant value

What is Y2 (t) ?