1. Since, you purchased a new PC that includes serial mouse, an internal modem, two hard drives and two SCSI controllers, you can apply the following IRQs: the IRQ3, IRQ4, IRQ10, IRQ11.
2. In this case, the result that the proposed solution produce is the (b.) the required result but only one of the optional desired results. The server can be able to handle all the networks traffic it receives with reasonable response time and make sure the server won't slow down the network.If collision of data ocurs, it is sensed by all nodes. If all nodes on the network have an IP address, the network portion of the IP is the same for all the nodes. To avoid the heavy loading of data, you can purchase additional hardware devices that can used to minimize the data loading.
3. For me, Bob should (b.) run a dedicated cable from the server to Bob's machine, and put him on his own network segment. This way, his laggard performance won't affect anyone else because if he replace the 8 bit NE1000 with a 32 bit NE3200 EISA card, he may encounter problems. The problem is: After being booted, the server lets workstations net use to it and the server can see other servers; though after a couple minutes,it completely loses contact with the network. At this point, we are unable tonet use to any other servers (-path not found-) an error message appear, and workstations lose all contact with the server.
4. In this problem, I choose to (b.) remove all non essential adapters and install the NIC. Then use whatever IRQs are available to install as many of the other adapters as you can get working. The most common method of checking the card is to see whether other devices can be found. Use Network Neighborhood and check for all devices on the network. Another method is to ping known devices by their IP address. By the time you install an NIC, many other sub system have already been installed in the computer such as mouse, floppy drive, hard drive, modem, CD-ROM, and so on. The I/O and interrupt you assigned to the NIC might be used by another device. Therefore, you have to find an unused IRQ for the card. In general, any unused IRQ works. However, check your NIC literature for special precautions.
Friday, December 7, 2007
Thursday, November 29, 2007
Case Project #3
1. Fiber optic cables way to use because of its applications:Interconnects: Standard and custom cabling solutions for your application. Networking: Trunk cables, distribution cables, high-density interconnect cables, and standard patch cords. Gigabit Ethernet: Fiber optic gigabit and multi-gig ethernet solutions in a multitude of styles, sizes, lengths, and special features. Harsh Environment: Designed to provide performance and durability in the most demanding environments. Data Transfer Tests: Designed and manufactured to ensure quality and performance for all your testing applications.
• Using thinwire Ethernet, although it is more flexible and easier to use but it has a substantially shorter transmission distance of 185m. In many buildings, the route taken by a thinwire segment is not evident and it can be easy to over-extend it.
2. In the case of TVBCA, as the proposed solution which is the network staff suggests to use a fiber optic backbone to link all three building, for me, the result of this solution is (b. the proposed solution delivers the required results and only one of the two optional desired results), Fiber optics supports the speed of up to 100 mbps and to stay within TVBCA’s budget, the network should also be as inexpensive because Internet service providers supply connections to the Internet along with value added services such as email and Web site hosting. But ISPs also need Internet connectivity themselves, in massive quantities at reasonable prices. The cost of bandwidth is likely the highest business expense for providers. By reducing the cost of their backbone bandwidth supply, service providers can offer more competitively priced broadband connections or improve their bottom line.
3. I think the (a. the proposed solution delivers the required result and both of the optional desired results) because Category 5 specified performance characteristics and test requirements for frequencies of up to 100 MHz. It has a capacity to operate at speeds of up to 100 Mbps. Category 5 cable includes four twisted pairs in a single cable jacket. This use of balanced lines helps preserve a high signal-to-noise ratio despite interference from both external sources and other pairs, this latter form of interference is called crosstalk. It is also easy to install, the cable exists in both stranded and solid conductor forms. The stranded form is more flexible and withstands more bending without breaking and is suited for reliable connections. The solid form is less expensive and makes reliable connections into insulation displacement connectors.
4. As the XYZ case, I think the (b. the proposed solution delivers the required results and the only one of the two optional desired results), field engineers are able to send e-mail to and receive it from employees at the headquarters operation because they are stay connected with each other, they can access to accurate information, it has been viewed as one of the technologies promising the greatest impact on productivity, it not so easy to measure, but still have real benefit for businesses. A happy employee means a happier working environment which means a more productive working environment. Wireless technology use tied to increased flexibility, productivity and time savings. More can be accomplished in less time, leading to a better balance between work and life and a higher level of employee satisfaction. This translates to greater employee loyalty and productivity. All the expected results are possible except for the cheaper cost because using wireless technology needs a bigger amount to install, it is really expensive.
5.
In this case, I think the TVBCA (b. delivers the required result and both of the optional desired solution), the users on one LAN are able to communicate with servers on the other LAN and vice versa and the wireless connection will secure from electronic eavesdropping, the connection can be resistant to electromagnetic interference because using Laser building to building (point to point) networking is a cost effective and secure solution when traditional cable is not an option or just very expensive. Laser Bandwidth is ideal for TVBCA operations looking for a cost effective solution to linking LAN's. This is a wireless installation - all lease line costs are eliminated giving you an incredibly quick return on your investment. Installation costs are minimized as there is no need for the costly installation of cables. Time is saved as there is no need to seek permissions for digging roads or obtaining special licenses. It creates high bandwidth,
optical free space data transmission gives you the same bandwidth and speed of fixed optical fibre. It secures data transmission, free space transmission is one of the safest transmission methods of its type because direct interception is virtually impossible with the concentrated beam and physical placement of the equipment-well above ground level and no instruments such as spectrum analyzers can detect the communication. It has a quick installation, a Wireless Cabling solution is quick and easy to deploy. All solutions are plug_and_play. It ahs an excellent price/performance, wireless cabling systems have outstanding low cost per bit ratios and its flexibility is good, the wireless cabling systems are divided into distance ranges- customers select the system that matches their needs. They can be deployed in a wide variety of network architecture and mesh systems. They can be installed roof to roof, window to window, window to roof or wall to wall.
• Using thinwire Ethernet, although it is more flexible and easier to use but it has a substantially shorter transmission distance of 185m. In many buildings, the route taken by a thinwire segment is not evident and it can be easy to over-extend it.
2. In the case of TVBCA, as the proposed solution which is the network staff suggests to use a fiber optic backbone to link all three building, for me, the result of this solution is (b. the proposed solution delivers the required results and only one of the two optional desired results), Fiber optics supports the speed of up to 100 mbps and to stay within TVBCA’s budget, the network should also be as inexpensive because Internet service providers supply connections to the Internet along with value added services such as email and Web site hosting. But ISPs also need Internet connectivity themselves, in massive quantities at reasonable prices. The cost of bandwidth is likely the highest business expense for providers. By reducing the cost of their backbone bandwidth supply, service providers can offer more competitively priced broadband connections or improve their bottom line.
3. I think the (a. the proposed solution delivers the required result and both of the optional desired results) because Category 5 specified performance characteristics and test requirements for frequencies of up to 100 MHz. It has a capacity to operate at speeds of up to 100 Mbps. Category 5 cable includes four twisted pairs in a single cable jacket. This use of balanced lines helps preserve a high signal-to-noise ratio despite interference from both external sources and other pairs, this latter form of interference is called crosstalk. It is also easy to install, the cable exists in both stranded and solid conductor forms. The stranded form is more flexible and withstands more bending without breaking and is suited for reliable connections. The solid form is less expensive and makes reliable connections into insulation displacement connectors.
4. As the XYZ case, I think the (b. the proposed solution delivers the required results and the only one of the two optional desired results), field engineers are able to send e-mail to and receive it from employees at the headquarters operation because they are stay connected with each other, they can access to accurate information, it has been viewed as one of the technologies promising the greatest impact on productivity, it not so easy to measure, but still have real benefit for businesses. A happy employee means a happier working environment which means a more productive working environment. Wireless technology use tied to increased flexibility, productivity and time savings. More can be accomplished in less time, leading to a better balance between work and life and a higher level of employee satisfaction. This translates to greater employee loyalty and productivity. All the expected results are possible except for the cheaper cost because using wireless technology needs a bigger amount to install, it is really expensive.
5.
In this case, I think the TVBCA (b. delivers the required result and both of the optional desired solution), the users on one LAN are able to communicate with servers on the other LAN and vice versa and the wireless connection will secure from electronic eavesdropping, the connection can be resistant to electromagnetic interference because using Laser building to building (point to point) networking is a cost effective and secure solution when traditional cable is not an option or just very expensive. Laser Bandwidth is ideal for TVBCA operations looking for a cost effective solution to linking LAN's. This is a wireless installation - all lease line costs are eliminated giving you an incredibly quick return on your investment. Installation costs are minimized as there is no need for the costly installation of cables. Time is saved as there is no need to seek permissions for digging roads or obtaining special licenses. It creates high bandwidth,
optical free space data transmission gives you the same bandwidth and speed of fixed optical fibre. It secures data transmission, free space transmission is one of the safest transmission methods of its type because direct interception is virtually impossible with the concentrated beam and physical placement of the equipment-well above ground level and no instruments such as spectrum analyzers can detect the communication. It has a quick installation, a Wireless Cabling solution is quick and easy to deploy. All solutions are plug_and_play. It ahs an excellent price/performance, wireless cabling systems have outstanding low cost per bit ratios and its flexibility is good, the wireless cabling systems are divided into distance ranges- customers select the system that matches their needs. They can be deployed in a wide variety of network architecture and mesh systems. They can be installed roof to roof, window to window, window to roof or wall to wall.
Wednesday, November 28, 2007
Case Project No.2
1. Henderson & Associates, a mid-sized engineering firm, hired you as a consultant to design their network. The company occupies three floors in a building downtown with PCs on all 40 desks and three servers. The company management wants access to all 40 deskd on all floors. The management also wants to keep costs down but needs a reliable network. Select a topology, or combination of topologies, to service this company. draw a map of this network.
Case Project No.2
3. Design networks for two classroom environments, a permanent facility and a traveling classroom. They must have connectivity for 20 PCs and a server, and be inexpensive and easy to set up. present both versions of this design to the class, and discuss the benefits of each.
4. Design a network for a 3-D imaging firm. It must have a connectivity for 40high-speed imaging workstations and two servers. This network must support high performance and easy reconfiguration into as many as eight workgroups, any of which may have as many as a dozen members. explain the kind of networking device required to create such an environment and why its the only choice for this particular kind of networking implementation.
4. Design a network for a 3-D imaging firm. It must have a connectivity for 40high-speed imaging workstations and two servers. This network must support high performance and easy reconfiguration into as many as eight workgroups, any of which may have as many as a dozen members. explain the kind of networking device required to create such an environment and why its the only choice for this particular kind of networking implementation.
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