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Quantitative Techniques for Management Application-2-July-Dec 14

Quantitative Techniques for Management Application-2-July-Dec 14

Section A (20 Marks)

Write short notes on any four of the following

  1. Steps in Decision Theory
  2. Significance of transportation models
  3. The types, limitations and rules of game theory
  4. Utility and Advantages of Diagrammatic Presentation
  5. Sampling and Non-Sampling Errors

 

Section B (30 marks)

(Attempt any three)

 

  1. Explain how to solve the LP problems of minimization and maximization using graphical and simplex methods.
  2. Describe the Hungarian method for solving the assignment problems.
  3. Elaborate the problems and limitations of Data Collection.
  4. Discuss about concept and usage of averages. What are the various kinds of averages?

 

Section C (50 marks)

(Attempt all questions. Every question carries 10 marks)

Read the case “BLADE – Integrated Blade & Top of Rack Switches.” and answer the following questions:

 

Case Study: BLADE – Integrated Blade & Top of Rack Switches

 

A major worldwide Financial Services company demanded more computing power from its existing data centre facilities to deliver higher speeds for transactions, with tighter security, whilst reducing their operational costs and carbon emissions.

As a result of replacing all existing switches with BLADE’s RackSwitch G8000 1/10Gb aggregation switch units, operating costs were reduced by 80 percent over a three year period, latency was reduced 73 percent and cabling requirements were minimised through the use of consolidated infrastructure.

From a network perspective, it is important to consider the significant benefits that more efficient switching equipment can provide in speed and power usage, as well as in reduced cabling. Bringing the networking back to a rack level will have a positive impact on the overall resource usage in the data centre.

Though this type of technology is mainly suited to large IT operations, it may be relevant to those SMEs that have high processing needs and where there are opportunities to consolidate switching hardware.

Featured Organisations

BLADE is the leading supplier of Gigabit and 10G Ethernet network infrastructure solutions that reside in blade servers and server and storage racks. BLADE’s virtual, cooler and easier RackSwitch family demonstrates Rackonomics – a revolutionary approach for scaling out data centre networks in order to drive down total cost of ownership.

The problems needing to be addressed?

A major worldwide Financial Services company demanded more computing power from its existing data centre facilities to deliver higher speeds for transactions, with tighter security, whilst reducing their operational costs and carbon emissions. New solutions for the existing switching infrastructure were needed so that these demands could be achieved, scaling out data centre networks to drive down total cost of ownership.

The Proposed Solution

Operating 25 data centres worldwide and 18 pods per data centre, existing legacy switches were

replaced with high performance BLADE’s RackSwitch G8000 1/10Gb aggregation switch units in each location. Each of BLADE’s integrated blade switches provide network intelligent switching features, simplified cabling, and fewer network ports to purchase, cable up, and manage.

What were the End Benefits? (Efficiencies, Productivity, Financial, Cultural or Other)

By replacing the older external switches with BLADE’s RackSwitch G8000 1/10Gb aggregation switches, overall power costs were reduced by 80 percent over a three year period. In addition,

BLADE’s integrated blade switches provide network intelligent switching features that simplify

cabling and reduce the number of network ports that need to be managed, thereby providing

significant savings in associated cabling costs and annual maintenance contracts.

Comparing the Total Cost of Ownership (TCO), BLADE Switches provided a 75 percent saving as compared with traditional networking solutions.

 

 

 

Application to Other Businesses (can the same principles be applied to an SME)?

For larger IT operations, bringing the networking back to a rack level will have a positive impact

on the overall resource usage in the data centre.

This can help to increase speed, reduce power usage and reduce cabling. Smaller organisations may also benefit if they have high processing needs and there are opportunities to consolidate switch gear.

“Switching and network equipment makes up a significant part of the powered equipment in a data centre. The impact of cabling also impacts the effectiveness of cooling and airflow strategies in a data centre.

Taking a ‘green’ approach to designing and deploying network resources, saves money, improves performance, and reduces carbon emissions. You just need to do the maths!”

Peter Hall, Vice President & General Manager

 

 

Questions:

1.      What is the main business of BLADE company?

2.      What problem is discussed in the above mentioned in the above case?

3.      What are the benefits of a switching and network?

4.      Why do major worldwide financial services company demanded more computing power from its existing data centre facilities.

5.      Write a brief summary of the above case.

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