Question

7-Explain the different network categories (LANs and WANS) 8-Explain topology and the different types found in networks. 9-Identify the different physical media types found in networks. 10-Differentiate the protocol between a circuit based telephone network and how the Internet works. 11-Describe the different wireless networks we use (think of your phones) 12-How is the focus of CRM systems different than SCM and ERP systems.

Answer 1

8: Explain topology and the different types found in networks.

Answer:

• Network topology refers to the geometric agreement of the actual physical organization of the computers and extra network devices) in a network.
• The five common types found in networks include the following,

Bus:

• All devices are connected to a central cable, called the bus or backbone.
• Bus networks are relatively inexpensive and simple to install for small networks.

Star:

• All devices are connected to a center device, called a hub.
• Star networks are relatively simple to install and direct, but bottlenecks can happen as all data must pass through the hub.

Ring:

• All devices are connected to one an additional in the shape of a closed loop, so that every device is connected directly to two other devices, one on either side of it.
• Ring topologies are relatively expensive and difficult to install, but they offer high bandwidth and can span large distances.

Hybrid:

• Groups of star-configured workstations are connected to a linear bus backbone cable, combining the characteristics of the bus and star topologies.

Wireless:

• Devices are connected by a receiver/transmitter to a special network interface card that transmits signals between a computer and a server, all within an acceptable transmission range.

9: identify the different physical media types found in networks.

Answer:

The different physical media types found in networks are:

• Copper wire
• Optical fiber
• Coaxial cables

12: How is the focus of CRM systems different than SCM and ERP systems?

Answer:

• The main objective of enterprise resource planning i.e. ERP is to improve and streamline the internal operation of a trade.
• CRM stands for customer relationship management. It aims at enhancing the relationship of an organization with its clients
• SCM is supply chain management. The chief aim of SCM is to facilitate the communication and collaboration of the company with its associate partners like manufacturers, suppliers, distributors, etc.