Answer to Question #259304 in Computer Networks for Shanu

Question

Department Number of Users

Customer Care 10

Sales and Marketing 20

Finance 25

Legal 5

HR 10

Developers 55

Network Team 5

Server Room

Servers +ISP connections

·     High level of redundancy is expected in network design to eliminate single point of failures and traffic bottle necks.

·     Sales and Marketing Team need to access Network resources using WIFI connectivity.

·     Proper methods for networking monitoring and troubleshooting need to be established.

·     All possible network security mechanisms should be implemented.

·             Discuss the benefits and constraints of different network system types that can be implemented in this and the main IEEE Ethernet standards that can be used in above LAN and WLAN design.

Answer 1

Local Area Networks (LAN):

-Local Area Network (LAN) is a high-speed communications system designed to connect computers and other data processing devices working together in a small geographical area such as a floor of the building.

Benefits

·        Devices that are connected in LAN can easily share and transfer data to each other

·        Can be able to be connected to other peripheral devices such as printer and photocopiers

·        Easy to install security protocols to protect LAN user from intruders and hackers.

Constraints

·        Virus in one system can spread easily to all other LAN users

Wide Area Network (WAN):

-The WAN is a network which is a collection of LANs and other network types connected using

router. It covers large geographical distance compare to LAN and MAN types.

Benefits

·        WAN covers large geographical area, hence offices situated at longer distance caneasily communicate.

·        Like LAN, it allows sharing of resources and application software among distributed

workstations or users.

Constraint

·        initial cost is high

·        -Security is big concern and requires use of firewall and security software/protocols at multiple points across the entire system.

·        There are more errors and issues due to wide coverage and use of different technologies.

·        It is difficult to maintain the network.

The main IEEE standard to use is  IEEE 802.3 this will allow use of ethernet cables in the network