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SMU MCA SEM 4 SUMMER 2015 ASSIGNMENTS
MCA4010- MICROPROCESSOR
1. Write short notes on:
a) Central Processing Unit
b) Memory Unit
2 Write short notes on:
a) Bus InterfaceUnit (BIU)
b) ExecutionUnit (EU)
3 Write short notes on:
a) REP Prefix
b) Table Translation
4 Describe about Key-codeData Formats and FIFOStatus Word formats.
5 Write a note on
(a) RS 232 standard
(b)IEEE 488 standard
6 Write short note on:
a) Parallel Printer Interface (LPT)
b) Universal Serial Bus (USB)
MCA4020- PROBABILITY AND STATISTICS
1. Three machines A, B and C produce respectively 60%, 30% and 10% of the total number of items
of a factory.The percentage of defectiveoutput of these machines are respectively 2%, 3% and 4%.
An item is selected at random and is found to be defective.Find the probability that the item was
produced by machine C.
2 Find the constant k so that Is a joint probability density function.Are X and Y independent?
3 The data shows the distribution of weight of students of 1st standard of a school.Find the
quartiles.
Class Interval 13-18 18-20 20-21 21-22 22-23 23-25 25-30
Frequency 22 27 51 42 32 16 10
4 Fit a trend line to the followingdata by the freehand method:
Year Production of wheat (in tonnes) Year Production of wheat (in tonnes)
1995 20 2000 25
1996 22 2001 23
1997 24 2002 26

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1998 21 2003 25
19990 23 2004 24
5 Let X be a random variable and its probability mass functionis p(x=r) = q^r-1 p, r = 1,2,3. Find the
m.g.f. of X and hence it’s mean and variance.
6 The diastolic blood pressures of men are distributed as shown in table. Find the standard
deviation and variance.
Pressure (men) 78-80 80-82 82-84 84-86 86-88 88-90
No. of Men 3 15 26 23 9 4
MCA4030- PROGRAMMING INJAVA
1 Describe the following:
a) Multi-threading.
b) Significance of Java Bytecode
2 Differentiate Break and Continue statements in Java withexample program.
3 Differentiate between packages and Interfaces.
4 What are Applets? What are the restrictions of Applets? Describe about applet class.
5 Compare JDBC and ODBC.
6 Describe about JavaBeans and BeanBox.
MCA4040-ANALYSIS AND DESIGNOFALGORITHM
1Write the steps involvedin analyzing the efficiency of non-recursive algorithms.
2 Define selection sort and explain how to implement the selection sort?
3 Define Topological sort. And explain with example.
4 Explain good-suffixand bad-character shift in Boyer-Moorealgorithm.
5 Solve the Knapsack problem using memory functions.
Item 1 2 3 4
Weight 2 6 4 8
Value (in Rs.) 12 16 30 40
Knapsack capacity is given as W=12. Analyze the Knapsack problem using memory functions with
the help of the values given above.
6 Describe Variable Length Encoding and HuffmanEncoding