Question

In Chapter 5 you learned about the graph abstraction of the network which is represented as G =(N,E) where N are the nodes and E are the edges. What do the edges represent in the graph?

	a.	The set of graphs
	b.	The set of links
	c.	The set of modems
	d.	The set of routers

What is Network management? (Choose all that apply).

	a.	Deployment and integration of hardware
	b.	Deployment and integration of software
	c.	Monitoring and testing of the network
	d.	Only b and c are correct answers

Answer 1

1. b. the set of links

Explanation: The edges can represent the link between routers/modems.

2. Only b and c are correct answers

Explanation:

Network Management involves:

• Network Administration: This involves tracking and inventorying the many network resources such as monitoring transmission lines, hubs, switches, routers, and servers; it also involves monitoring their performance and updating their associated software – especially network management software, network operating systems, and distributed software applications used by network users.
• Network Operation: This involves smooth network functioning as designed and intended, including close monitoring of activities to quickly and efficiently address and fix problems as they occur and preferably even before users are aware of the problem.
• Network Maintenance: This involves timely repair and necessary upgrades to all network resources as well as preventive and corrective measures through close communication and collaboration with network administrators. Example work includes replacing or upgrading network equipment such as switches, routers and damaged transmission lines.
• Network Provisioning: This involves configuring network resources to support the requirements of a particular service; example services may be voice capabilities or increasing broadband requirements to facilitate more users.