Centre for Development of Advanced Computing(C-DAC) 2005 M.C.A Front-End Design Tools - Question Paper

END-TERM exam
Paper Code: MCA 207 Subject: Front-End Design Tools
Third Semester [MCA] - DECEMBER 2005
Time: three Hours (Batch 2004) Maximum Marks: 60

Q. 1. Fill in the blanks :-
(a) An executables that can expose COM components is called
……………………..
(b) The size of data kind single and double is …………………….. and
………………… bytes respectively.
(c) ………………., ……………… and ……………. container objects.
(d) ………………., ………………, ……………. are the kind of combo
box.
(e) OLE used for ……………………
(f) …………………… is the control used to call a window application.
(g) ………………………. property is used to count no. of items in a
combo box.
(h) ……………….. is a property to resize a tag control according to
your caption.
(i) Timer control contains ………………….. no. of events.
(j) ……………………. is the difference ranging from List Index and Tab
Index.
(k) ……………. collection in recordset used to assign a value from text
box to table column without making a binding in data control.
(l) ……………. property used to add a menus at runtime.
Q. 2. discuss :-
(a) What is DSN?
(b) What is DAO?
(c) Difference ranging from Dynaset and Snapshot?
(d) Difference ranging from Recordset and Querydef?
(e) Difference ranging from recordset and Resultsets?
(f) What is OLE? discuss
(g) What is DDE?
(h) discuss Get, Let, Set Properties.
(i) elaborate the uses of List view control?
(j) What is the use of progress bar control?
(k) What is the difference ranging from ADO and other data access objects?
(l) What is OLEDB?
Paper Code: MCA 207 Subject: Front-End Design Tools
Note: Attempt any 5 ques.. All ques. carry equal marks.
Length:
Width:
Area:
Perimeter:
compute Area & Perimeter x
Calculate
Exit
Fahrenheit:
Celsius:
compute Celsius X
Calculate
Exit
Q. 3. (a) Write a program to compute area and perimeter:-
Operation
The user enters values for the length and width of a rectangle and
clicks on the compute button or presses the Enter key to activate
the compute button.
The application then displays the area and perimeter of the
rectangle in 2 tags.
Specification
The formula for calculating the area : width * length.
The formula for calculating the perimeter : 2* width + 2*length.
The application should accept fractional decimal values like 10.5
and 20.65 for the user entries.
presume that the user will enter valid numeric data for the length and width.
(b) Write a program to convert Fahrenheit temperature to Celsius:-
Operation
The user enters a number into the Fahrenheit text box and clicks
the compute button or presses the enter key to activate that button.
The application calculates the Celsius equivalent and displays it in
a tag on the form.
Specification
The formula for converting temperature from Fahrenheit to Celsius
is (F-32) * 5/9.
presume that the user will enter valid numeric data for the length and
width.
Q. 4. Write short notes on any 4 of the subsequent :-
(a) Form Lifetime
(b) API
(c) Multithreading in VB
(d) Class module
(e) DCOM
Q. 5. (a) discuss any 3 common dialog boxes along with its properties.
(b) Write various fault handling techniques in VB in details.
Q. 6. (a) discuss DS in general and various kinds of DSN in particular.
(b) How many kinds of record sets are available in VB. discuss each? Write
advantages and disadvantages of every kind of record sets.
Q. 7. Differentiate ranging from the subsequent using examples:-
(a) MDI and SDI application
(b) Subroutines and Functions
(c) DAO vs. RDO.

Earning:   Approval pending.