DIS04
Computer Networks
Assignment – I
Assignment Code: 2017DIS04B1 Maximum Marks: 100
Last date of Submission: 15th November 2017
Section A
Q1. Why is digital signal considered better than analog signal? Explain their advantages.
Q2. What is the purpose of placing twists in a pair of wires used as transmission medium?
Section B
Attempt all questions provided at the end of case reference. All questions carry equal marks.
Case Reference: Starbucks Deploys Wireless LANs
Starbucks is the number one U.S. specialty coffee retailer, and it operates more than 5000 coffee shops in office buildings, shopping centers, airport terminals, and supermarkets in some 20 countries world wild. Starbucks sells coffee drinks and beans, pastries, and other food items and beverages, as well as mugs, coffeemakers, coffee grinders, and storage containers. The company also sells its beans to restaurants, business, airlines, and hotels, and it offers mail-order and online catalogues. Starbucks has expended into coffee ice-cream (with Dreyer’s) and makes Frappuccino, a bottled Coffee drink (with PepsiCo.)
In January 2001, Starbucks and Microsoft announced an agreement to jointly offer high-speed internet connections in all 3000 Starbuck’s stores throughout North America. Starbucks choose Compaq Computers as the main hardware supplier for this project, now part of Hewlett-Packard. H-P is providing iPaq handheld computers, which Starbucks customers can use to access broadband content and services.
The project is part of overall Starbucks strategy to upgrade its operations including the introduction of Starbucks customer cards, which are intended to speedup orders and eventually allow customers to order drinks over mobile phones. Starbucks also believes that giving customers the ability to access a 10-Mbps wireless LAN while enjoying a cup of coffee on a comfortable couch will lure more customers into its coffee shops during off-peak post-breakfast hours-the company currently does 80 percent of its business in the morning. Starbucks has 15 million customers a week, and 90 percent of them use internet. So providing internet access may be a benefit to many of its customers. Starbucks offers the service at fees ranging from $2.50 for 15 minutes to $59.95 per month for unlimited access.
MobileStar Network Corporation was picked to install an industry standard 802.11b LAN completes with wireless radios and antennae in Starbucks stores. One LAN is capable of supporting 20-40concurrent users. Latter, MobileStar pulled the plug on its wireless network services, so Starbucks partnered with the wireless subsidiaries of Deutsche Telekom, I-Mobile International, and VoiceStream wireless. Customers access the network through a portal that Microsoft developed for Starbucks on its MSN online service Access to the portal carries no change, but once customers surf beyond it or check their email, they will either have to enter a user number or signup online, the first installation were completed in spring 2001 in the Pacific Northwest. Starbucks planned to expand its internet access for customers to all 3000 North American outlets and 70 percent of its stores worldwide by the end of 2003.
Starbucks is weighing several options to encourage use of the wireless LAN technology, including the sale of wireless modem cards in its stores—provided it does not detract from the coffee experience. Starbucks has also started discussions with major laptop computer manufacturers to provide incentives for customers to purchase the wireless LAN Devices.
Some industry analyst believes that Starbucks has positioned itself too far ahead of the technology curve by launching this service so early. After all, not that many people have wireless modem today. A writer for Fortune magazine tested access to the internet from Starbucks outlets and complained that he had to visit five stores before he could get it to work. He also pointed out the total lack of the publicity for the wireless networks—there were no signs, no brochures, no one available to offer customer service, nobody in the stores who knew anything about the wireless LAN.
Rollout plans were delayed when MobileStar Network Corporation shut down its offices in October 2001. By February 2002, Starbucks confirmed that VoiceStream the North American affiliate of T-mobile International had acquired MobileStar and will be the service provider for the high speed internet access that Starbucks is continuing to rollout to company-owned stores.
Questions:
1. What evidence might support critics’ comments that Starbucks has positioned itself too far ahead of the technology curve?
2. Discuss the potential risk of “pushing” the technology so “hard” that it takes away from the coffee experience
3. Make a list of action that is required to complete the rollout of this new technology in a manner that will provide an effective and useful service to the customers.
4. What is your opinion about the Starbucks strategy?
DIS04
Computer Networks
Assignment - II
Assignment Code: 2017DIS04B2 Maximum Marks: 100
Last date of Submission: 15th November 2017
Section A
Q1. What do you understand by an IP Address?
Q2. Explain briefly the attributes of the client/server computing model.
Section B
Answer the questions given at the end of the case.
Case Study
You are interested in starting your own Music Store, Quality Sounds, in a suburban area of your town. You need to design and build a network and computing solution for your stores. You have done some initial planning and you will start with two stores (but you plan to add two more stores across town within one year). Your store will sell new and used music and allow customers to get “online” in your stores and download music. You also will offer classes on how to setup music downloads and configure MP3 devices. You took computer networking courses in college and you feel you can tackle this solution yourself. Upon initial planning, you have identified the following requirements for your network:
• Connects three office computers and one computer used for Point-of-Sale (POS) services at each of your stores. You also want six (6) computers in the lobby/store where patrons can download music and you can run “training classes” for people to learn about using MP3 players and get other basic information. The two offices have to be connected into one cohesive network, sharing POS services and other critical company information. You also need to provide a “hand out” casual area for people to stop in and discuss music and connect wirelessly to the Internet (you might even offer free coffee to entice people to come in to your store).
• Provides adequate security for all of the company communications and documents (especially sensitive sales documents). All POS services must be protected. All general network access should be segmented from the company POS services.
• Fast and have additional capacity as the company grows
• Provides for centralized printing
• Supports the eventual addition of other stores to the network
• Provides customers with a general information Website and a secure Website where clients can buy services, and products
• Provides for limited downtime (24 hour downtime maximum)
• Provides for centralized management and control of the computers in the two stores, so that you can maintain the network from off-site
• Provides for long-term cost effectiveness
• Provides a suite of software tools for the employees to effectively communicate and a POS solution for the stores
The company does not have any equipment. Your plan should include a complete network and computer system that meets these requirements and future expansion plans.
The two store locations will (eventually) be within a five-mile radius of each other. The locations are within a suburban area that has current technological infrastructures and related technology offerings. The stores will need a sales system and print services for invoices.
Q. Complete your proposal including costs for computing equipment, network infrastructure, network servers, printers, and related hardware, software, and accessories. Include as much detail as possible as well as justification as to your selections. As you are a small business, cost is a major factor and should be minimized.
Computer Networks
Assignment – I
Assignment Code: 2017DIS04B1 Maximum Marks: 100
Last date of Submission: 15th November 2017
Section A
Q1. Why is digital signal considered better than analog signal? Explain their advantages.
Q2. What is the purpose of placing twists in a pair of wires used as transmission medium?
Section B
Attempt all questions provided at the end of case reference. All questions carry equal marks.
Case Reference: Starbucks Deploys Wireless LANs
Starbucks is the number one U.S. specialty coffee retailer, and it operates more than 5000 coffee shops in office buildings, shopping centers, airport terminals, and supermarkets in some 20 countries world wild. Starbucks sells coffee drinks and beans, pastries, and other food items and beverages, as well as mugs, coffeemakers, coffee grinders, and storage containers. The company also sells its beans to restaurants, business, airlines, and hotels, and it offers mail-order and online catalogues. Starbucks has expended into coffee ice-cream (with Dreyer’s) and makes Frappuccino, a bottled Coffee drink (with PepsiCo.)
In January 2001, Starbucks and Microsoft announced an agreement to jointly offer high-speed internet connections in all 3000 Starbuck’s stores throughout North America. Starbucks choose Compaq Computers as the main hardware supplier for this project, now part of Hewlett-Packard. H-P is providing iPaq handheld computers, which Starbucks customers can use to access broadband content and services.
The project is part of overall Starbucks strategy to upgrade its operations including the introduction of Starbucks customer cards, which are intended to speedup orders and eventually allow customers to order drinks over mobile phones. Starbucks also believes that giving customers the ability to access a 10-Mbps wireless LAN while enjoying a cup of coffee on a comfortable couch will lure more customers into its coffee shops during off-peak post-breakfast hours-the company currently does 80 percent of its business in the morning. Starbucks has 15 million customers a week, and 90 percent of them use internet. So providing internet access may be a benefit to many of its customers. Starbucks offers the service at fees ranging from $2.50 for 15 minutes to $59.95 per month for unlimited access.
MobileStar Network Corporation was picked to install an industry standard 802.11b LAN completes with wireless radios and antennae in Starbucks stores. One LAN is capable of supporting 20-40concurrent users. Latter, MobileStar pulled the plug on its wireless network services, so Starbucks partnered with the wireless subsidiaries of Deutsche Telekom, I-Mobile International, and VoiceStream wireless. Customers access the network through a portal that Microsoft developed for Starbucks on its MSN online service Access to the portal carries no change, but once customers surf beyond it or check their email, they will either have to enter a user number or signup online, the first installation were completed in spring 2001 in the Pacific Northwest. Starbucks planned to expand its internet access for customers to all 3000 North American outlets and 70 percent of its stores worldwide by the end of 2003.
Starbucks is weighing several options to encourage use of the wireless LAN technology, including the sale of wireless modem cards in its stores—provided it does not detract from the coffee experience. Starbucks has also started discussions with major laptop computer manufacturers to provide incentives for customers to purchase the wireless LAN Devices.
Some industry analyst believes that Starbucks has positioned itself too far ahead of the technology curve by launching this service so early. After all, not that many people have wireless modem today. A writer for Fortune magazine tested access to the internet from Starbucks outlets and complained that he had to visit five stores before he could get it to work. He also pointed out the total lack of the publicity for the wireless networks—there were no signs, no brochures, no one available to offer customer service, nobody in the stores who knew anything about the wireless LAN.
Rollout plans were delayed when MobileStar Network Corporation shut down its offices in October 2001. By February 2002, Starbucks confirmed that VoiceStream the North American affiliate of T-mobile International had acquired MobileStar and will be the service provider for the high speed internet access that Starbucks is continuing to rollout to company-owned stores.
Questions:
1. What evidence might support critics’ comments that Starbucks has positioned itself too far ahead of the technology curve?
2. Discuss the potential risk of “pushing” the technology so “hard” that it takes away from the coffee experience
3. Make a list of action that is required to complete the rollout of this new technology in a manner that will provide an effective and useful service to the customers.
4. What is your opinion about the Starbucks strategy?
DIS04
Computer Networks
Assignment - II
Assignment Code: 2017DIS04B2 Maximum Marks: 100
Last date of Submission: 15th November 2017
Section A
Q1. What do you understand by an IP Address?
Q2. Explain briefly the attributes of the client/server computing model.
Section B
Answer the questions given at the end of the case.
Case Study
You are interested in starting your own Music Store, Quality Sounds, in a suburban area of your town. You need to design and build a network and computing solution for your stores. You have done some initial planning and you will start with two stores (but you plan to add two more stores across town within one year). Your store will sell new and used music and allow customers to get “online” in your stores and download music. You also will offer classes on how to setup music downloads and configure MP3 devices. You took computer networking courses in college and you feel you can tackle this solution yourself. Upon initial planning, you have identified the following requirements for your network:
• Connects three office computers and one computer used for Point-of-Sale (POS) services at each of your stores. You also want six (6) computers in the lobby/store where patrons can download music and you can run “training classes” for people to learn about using MP3 players and get other basic information. The two offices have to be connected into one cohesive network, sharing POS services and other critical company information. You also need to provide a “hand out” casual area for people to stop in and discuss music and connect wirelessly to the Internet (you might even offer free coffee to entice people to come in to your store).
• Provides adequate security for all of the company communications and documents (especially sensitive sales documents). All POS services must be protected. All general network access should be segmented from the company POS services.
• Fast and have additional capacity as the company grows
• Provides for centralized printing
• Supports the eventual addition of other stores to the network
• Provides customers with a general information Website and a secure Website where clients can buy services, and products
• Provides for limited downtime (24 hour downtime maximum)
• Provides for centralized management and control of the computers in the two stores, so that you can maintain the network from off-site
• Provides for long-term cost effectiveness
• Provides a suite of software tools for the employees to effectively communicate and a POS solution for the stores
The company does not have any equipment. Your plan should include a complete network and computer system that meets these requirements and future expansion plans.
The two store locations will (eventually) be within a five-mile radius of each other. The locations are within a suburban area that has current technological infrastructures and related technology offerings. The stores will need a sales system and print services for invoices.
Q. Complete your proposal including costs for computing equipment, network infrastructure, network servers, printers, and related hardware, software, and accessories. Include as much detail as possible as well as justification as to your selections. As you are a small business, cost is a major factor and should be minimized.
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