MEFA IMPORTANT QUESTIONS

1) Differentiate between partnership, sole-proprietorship and Company form of Organizations.
2) Suppose an asset costing Rs.30000 has 5years of life and is expected to yields Rs.25000, Rs.25000, Rs.30000, Rs.25000 and Rs.20000. Its opening Cash expenses are 30 Percent of the estimated revenues of each year. The asset is subject to 20 percent depreciation. The company is subject to 20 percent of Income tax. Estimate the cash inflows for years 1 to 5.
3) Prepare Trial Balance, Trading a/c, Profit & Loss a/c and Balance sheet of Kumar and Co., as on 31 march 2010.
Particulars - Amount
X’s Capital - 75000
Sales - 110000
Creditors - 14000
Bills Payable - 6000
Purchases - 50000
Opening Stock - 60000
Wages - 5000
Salaries - 6000
Office expenses - 4000
Debtors - 40000
Cash - 3000
Plant & Machinery - 20000
Rent - 2000
Bad-debts - 1000
Receivables - 4000
Goodwill - 10000
Adjustments:-
The value of closing stock was Rs.60000
4) Define Ratio Analysis? And explain the different Types of ratios with the suitable Formulas.
5) Journalize the Following Transactions, post them in the Ledger and balance the accounts on 31st January.
1. Raja started business with a Capital of Rs.10000
2. He purchased goods from Mohan on credit Rs.2000
3. He paid cash to Mohan Rs.1000
4. He sold goods to Suresh Rs.2000
5. He received cash from Suresh Rs.3000
6. He further purchased goods from Mohan Rs.2000
7. He paid cash to Mohan Rs.1000
8. He further sold goods to Suresh Rs.2000
9. He received cash from Suresh Rs.1000
6) Answer the following:
a) Explain the Methods of Capital Budgeting with formula.
b) A firm is considering two projects each with an initial list of estimated cash inflows after taxes.
Estimated Cash inflows proposals for I, II, and III
Year - Proposal-I - Proposal-II - Proposal-III
1) -13500 - 13250 - 12750
2) -13500 - 12750 - 13500
3) -13500 - 14500 - 13500
4) -13500 - 13500 - 14250

DC IPMORANT QUES

1. (a) Consider a telegraph source having two symbols, dot and dash. The dot duration is 0.2s.The dash duration is 3 times the dot duration, the probability of the dots occurring is twice that of the dash, and the time between symbols is 0.2s.Calculate the information rate of the telegraph source.
(b) Show that H(X, Y) = H(X) + H(Y |X) = H(Y ) + H(X|Y ).

2. A Binary Symmetric channel is shown in figure

Find the rate of information transmission over this channel when p= 0.9, 0.8 and 0.6. Assume that the symbol rate (or bit) is 1000 bits(symbols)/sec.

3. A voice grade channel of the telephone network has a bandwidth of 3.4 kHz
(a) Calculate the channel capacity of the telephone channel for a signal to noise ratio of 30dB.
(b) Calculate the minimum signal to noise ratio required to support information transmission through the telephone channel at the rate of 4800bps.

4. The parity check bits of a (8, 4) block code are generated by
C5=d1 + d2 + d4
C6=d1 + d2 + d3
C7=d1 + d3 + d4
C8=d2 + d3 + d4
Where d1, d2, d3 and d4 are message bits. Find (a) the generator matrix and parity check matrix for this code. (b) the minimum weight of this code.

5. (a) A memory less source has the alphabet (-5,-3,-1,0,1,3,5) with corresponding probabilities (0.05, 0.1, 0.1, 0.15, 0.05, 0.25, 0.3). (i) Find the entropy of the source. (ii) design a Shannon Fano code that encodes a single level at a time and determine the average bit rate.
(b) A Discrete Memoryless Source has an alphabet of eight letters, Xi , i=1,2,3,,8, with probabilities 0.36, 0.14, 0.13, 0.12, 0.1, 0.09, 0.04, 0.02.
(i) Use the Huffman encoding procedure to determine a binary code for the source output.
(ii) Determine the average number of binary digits per source letter.
(iii) Determine the entropy of the source.

6. Decode the following sequence using Viterbi algorithm 11 01 11 of a convolution encoder of size (2,1). Draw the Code Trellis Diagram & Metrics diagram. The encoder outputs are : X1= m +m1+m2 X2= m+m2

7. Consider 1/2 convolution encoder. In which two bits at a time are shifted into it and four output bits are generated. The generators are g(1)=(1, 0,1,0) =g(2)=(0, 1, 0,1), g(3)=(1, 1, 1,0), g(4)=(1, 0, 0,1). Draw the block diagram of the encoder. Draw the code tree for this encoder.

8. Consider a (7,4) cyclic code with g(x)=1 + x + x3
(a) Find all code words
(b) If the received sequence is (1 1 1 0 0 1 1) Find the data word sent.

9. A parity-check code has the parity-check matrix


(a) Determine the generator matrix
(b) Find all the code words.
(c) Suppose that the received word is 110110, decode this received word.

10. The generator matrix for a linear binary code is

(a) Express G in systematic [I P] form .
(b) Determine the parity check matrix H for the code.
(c) Construct the table of syndromes for the code.

CO IMPORTANT QUESTIONS

CO IMPORTANT QUESTIONS( II MID)
1. Explain the features of dynamic memory programming ?
2. What is the difference between micro processor and micro program?
3. Differences between loosely coupled micro processor and tightly coupled micro processor.
4.Explain the following terms.
i)Magnetic disks
ii)Match logic
iii)Direct mapping
iv)Segmented page mapping.
5.Explain about memory hierarchy with example.
6.Explain about memory address map/mapping.
7.Explain arithematic pipe line
8.Explain Isolated versus memory mapped I/o.
9.Explain Bit oriented protocol.
10. explain the inter connection structure of micro processor.