Networks and Communications Security Case Study Answer

Networks and Communications Security Case Study Answer

Networks and Communications Security (ISC)²

In this article i am gone to share Coursera Course: Networks and Communications Security Week 5 | Networks and Communications Security Case Study Answer with you..

Networks and Communications Security Case Study

Peter O’Day, Manager, Technical and Communications, needs you to set up a secure communications infrastructure with a perimeter based firewall. What is needed to deploy an effective firewall?

First to deploy Any Device in network you know where to put device in network infrastructure firewall can be put before or after router ..

Policy required
Some training required
Monitoring skill required
Change control knowledge required

Why is a switch preferable to a hub even though it costs more?

A switch is more efficient at passing along traffic with better traffic management.
Switch can allow multiple simultaneous packet deliveries from different sources to different receivers.
VLAN can be created in switch and there is ability to isolate the traffic

Why is the use of CAT5e cable better than the use of Fiber? What are the disadvantages of UTP (Unshielded Twisted Pair)?

CAT5e also call Ethernet , Unshielded twisted pair cable.

Advantages:

it is cheaper
low bandwidth but good for networking
easy to install
easy to maintain
speed is low ..

Disadvantages:

Not Secure .
More Susceptible for sniffing and Electro magnetic interference (EMI).

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Match the protocols to their correct layer of the OSI stack. For protocols that operate at multiple layers, choose the layer at which the protocol first is used: