DeVry NETW590 Wk 3 Quiz latest 2016 September

Question 1. Question :

(TCO D) The three distinct roles played by nodes in the Internet are _____.

the client, the proxy, and the subnet

the gateway, the router, and the client

the terminal, the gateway, and the gatekeeper

the client, the server, and the router

Question 2. Question :

(TCO F) When implementing VoIP on a legacy TCP/IP network _____.

the required control mechanisms may be offloaded onto an overlay network

the packetized voice traffic may be offloaded onto an overlay network

no additional infrastructure-based control mechanisms are required

Both A and B

Question 3. Question :

(TCO D) The fact that a service provider does not have an inherent ability to optimize its resources _____.

is a shortcoming of the Internet

is a key reason for the need for the anycast service

leads to the use of a CDN

All of the above

Question 4. Question :

(TCO F) The R factor is a function of _____.

resources, retransmission, and rerouting

delay, network loss rate, jitter loss rate, and cluster factor

voice quality

packet replication capability

Question 5. Question :

(TCO D) Briefly describe the two main types of overlay networks.

Question 6. Question :

(TCO F) Briefly explain some of the main methods used to improve VoIP voice quality in an overlay network.