Solve your IGNOU Doubts

Question:

In a factory, the machines break down at an average rate of 10 machines per hour. Assume that the number of machines is fairly large. The idle time cost of a machine is estimated to be Rs. 20 per hour. The factory works 8 hours a day. The factory manager is considering 2 mechanics for repairing the machines. The first 4 mechanic A takes about 5 minutes on an average to repair a machine and demands wages of Rs. 10 per hour. The second mechanic B takes about 4 minutes in repairing a machine and demands wages at the rate of Rs. 15 per hour. Assuming that the rate of machine breakdown is Poisson distributed and the repair rate is exponentially distributed, which of the two mechanics should be engaged?

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Question:

Check whether S (0, 35/9, 20/9) 1  is an optimal solution to the primal and S (50/9, 8/9), 2  is an optimal solution to the dual without solving the problem.

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Question:

Formulate the dual of the LPP

Max. $x_{1} +2x_{2} +x_{3} leq 10$

Subject to $x_{1} +2x_{2} +x_{3} leq 10$

$3x_{1} +2x_{2} +5x_{3} leq 15$

$x_{1} +x_{2}, +x_{3} geq 0$

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Question:

There is no way to prevent receiving spoofed emails. Do you agree? Explain in detail.

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Question:

What is wireless security? Explain in detail.

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Question:

What are the challenges for building secure software?

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Question:

Risk management depends on: risk assessment, risk treatment, risk acceptance, risk communication, risk monitoring and risk review. Risk assessment in turn depends upon risk analysis and risk evaluation. Risk analysis depends upon risk estimation. Finally, risk evaluation depends upon risk estimation and Risk criteria. Explain this interdependency in detail.

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Question:

The security standards guidelines for organizations to practice safe security techniques to minimize the number of successful cyber security attacks are known as Cyber security standards. Explain these standards.

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Question:

There is no comprehensive legislation on privacy in India. Explain the problems and challenges faced by Indian Judiciary in handling data privacy issues?

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Question:

The image of a cyber criminal usually portrayed by the media is of a highly skilled geek. Do you agree on this? Explain.

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Question:

What are the Web Services Security Standards? Explain in detail.

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Question:

Vulnerabilities are the flaws in computer software that create weaknesses in the overall security of the computer or network and allow an attacker to reduce a system's information assurance. Could you identify these vulnerabilities.

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Question:

What is Application Layer? Explain the protocols included in the Application Layer.

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Question:

A department has 5 jobs to be performed and there are five employees to perform these jobs. The time (in hours) each employee will take to perform each job is given in the following matrix:

Employees