NETW 490 DeVry Week 3 Quiz Latest

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NETW 490 DeVry Week 3 Quiz Latest

NETW 490 DeVry Week 3 Quiz Latest

NETW490

 

NETW 490 DeVry Week 3 Quiz Latest

Question 1. 1. (TCO D) The three distinct roles played by nodes in the Internet are _____. (Points : 5)

• 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. 2. (TCO F) When implementing VoIP on a legacy TCP/IP network _____. (Points : 5)

• 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. 3. (TCO D) The fact that a service provider does not have an inherent ability to optimize its resources _____. (Points : 5)

• 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. 4. (TCO F) The R factor is a function of _____. (Points : 5)

• resources, retransmission, and rerouting
• delay, network loss rate, jitter loss rate, and cluster factor
• voice quality
• packet replication capability

Question 5. 5. (TCO D) Briefly describe the two main types of overlay networks. (Points : 15)

Question 6. 6. (TCO F) Briefly explain some of the main methods used to improve VoIP voice quality in an overlay network. (Points : 15)