CVOICE Module 5 part 1
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- -What is one cause of jitter when voice packets are transmitted over an IP network?
- Congestion leading to instantaneous buffer utilization
- -What can be used to ensure proper delivery of voice packets over and IP networks?
- QoS parameters
- -According to ITU G.114, what is the maximum delay that VoIP can tolerate before the voice quality starts to degrade?
- 150 ms
- -Which component in IP telephony network can compensate for small amounts of packet loss?
- The Codec
- -Provides preferential treatment for priority traffic?
- Congestion Avoidance
- -Hold packets so that they can be handled with a specific priority leaving the router interface?
- Queuing
- -Define the maximum size of a data packet?
- Fragmentation
- -Enables the network to provide differentiated levels of service to specific flows of data?
- RSVP
- -Saves bandwidth by compressing the header?
- Header compression
- -Which technique is used to prevent excessive serialization delay?
- Fragmentation
- -Which protocol automatically reorders packets?
- RTP
- -What is the function of RTCP in ensuring consistent delivery of voice packets in an IP network?
- Sends occasional report packets for delivery monitoring
- -Which Cisco technology can be used to provide proactive network management?
- CiscoWorks2000
- -What do traditional telephony networks typically use to provide redundancy?
- Multiple connections between switches