डेटाबेस मैनेजमेंट सिस्टम (डीबीएमएस) से आप क्या समझते हैं? इसकी विभिन्न पीढ़ियों का वर्णन कीजिए।
See Answer →Write and execute an 8086-assembly language program that accepts two ASCII decimal digits (0–9) from the keyboard using DOS interrupt 21H, converts them into a packed BCD number, and stores the packed BCD value in a byte memory location. Display the packed BCD value in hexadecimal format. For example, if the user enters 3 and 5, the stored value should be 35H (00110101) ₂.
See Answer →
A sender wants to transmit the binary data
1101101010
using the generator polynomial
G(x) = x⁴ + x + 1
Calculate the CRC bits and determine the transmitted codeword. Show all intermediate binary
division steps.
Explain the concept of Angle Modulation. Differentiate between Frequency Modulation (FM) and
Phase Modulation (PM). Discuss two practical applications and two limitations of angle
modulation techniques.
A company operates offices in Delhi, Mumbai, and Bengaluru using dynamic routing. Due to an
incorrect routing update, several routers continue forwarding packets along an invalid route. Explain
how such routing loops occur in Distance Vector Routing. Discuss the Count-to-Infinity problem
and explain any two techniques used to overcome it.
Explain the working principle of optical fiber communication. Compare Step-Index Single Mode,
Step-Index Multimode, and Graded-Index Multimode optical fibers with respect to structure,
transmission characteristics, bandwidth, and applications.
(b) Describe the TCP/IP reference model. Explain the responsibilities of each layer and identify two
protocols commonly associated with every layer. Also explain how encapsulation takes place while
sending data from an application to the physical network.
A university campus has recently upgraded its network infrastructure by replacing copper cables with
optical fiber
Design a 2-bit synchronous reverse (down) counter using J-K flip-flops. The counter should follow the
sequence 11 → 10 → 01 → 00 → 11 → …. Draw the state transition diagram, prepare the presentstate/next-state table, derive the J and K input equations using Karnaugh maps, and draw the complete
logic circuit.
Write and execute an 8086-assembly language program to determine the length of a string stored in
consecutive memory locations using '$' as the string terminator. Store the final length in CX, and show
the memory layout, important register changes during execution, and the final output.
Write and execute an 8086-assembly language program using a NEAR procedure. The main program
shall initialize a 16-bit integer, pass it to the NEAR procedure using the stack, and call the procedure. The
procedure shall compute the square of the number and return the result in the AX register. Demonstrate
correct stack handling using PUSH, POP, CALL, and RET instructions. Include suitable comments, show
the stack contents during parameter passing, and provide the sample input, output, and register contents
before and after the procedure call.
Write and execute an 8086-assembly language program that accepts two ASCII decimal digits (0–9) from
the keyboard using DOS interrupt 21H, converts them into a packed BCD number, and stores the packed
BCD value in a byte memory location. Display the packed BCD value in hexadecimal format. For
example, if the user enters 3 and 5, the stored value should be 35H (00110101)
Design a 2-bit synchronous reverse (down) counter using J-K flip-flops. The counter should follow the
sequence 11 → 10 → 01 → 00 → 11 → …. Draw the state transition diagram, prepare the presentstate/next-state table, derive the J and K input equations using Karnaugh maps, and draw the complete
logic circuit.
The pulse rates of 6 people were recorded before and after taking a new drug:
Before: 69, 72, 67, 75, 80, 79
After: 70, 68, 68, 71, 72, 75
Using a spreadsheet package, perform a paired t-test at 10% level of significance to test whether the drug
causes a significant decrease in pulse rate.
Write an essay in 250 to 300 words on any one of the following:
Artificial Intelligence and the Future of Employment
Digital Citizenship and Responsible Use of Technology
Role of Communication Skills in Entrepreneurship
The pulse rates of 6 people were recorded before and after taking a new drug:
Before: 69, 72, 67, 75, 80, 79
After: 70, 68, 68, 71, 72, 75
Using a spreadsheet package, perform a paired t-test at 10% level of significance to test whether the drug
causes a significant decrease in pulse rate.
Create a frequency distribution using the class intervals:
0–25, 26–50, 51–75, 76–100, 101–125, 126–150, 151–175, 176–200.
b) Use an array formula or suitable spreadsheet function to count frequencies.
c) Draw a histogram.
d) Calculate the mean and variance.
e) Find the lowest and highest project marks.
Effective Team Communication in Software Development.
See Answer →The marks of 20 students in a project course out of 200 are given below:
110, 95, 150, 80, 115, 30, 180, 125, 90, 117, 25, 75, 85, 135, 160, 77, 89, 129, 149, 101
Using a spreadsheet package, perform the following tasks:
Importance of Non-Verbal communication in Professional Life.
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