57. DiffServ can be used to:
A. specify voice and video traffic only.
B. create access tables to deny traffic.
C. mark traffic going to the Public Switched Telephone Network (PSTN).
D. specify traffic types for prioritization.
Answer: D
58. Which of the following needs to be completed prior to setting up a single WAN link between two sites that will carry voice and data?
A. Traffic studies on the number of analog trunks used at peak hours.
B. Traffic studies to determine the number of IP trunks used per day.
C. Traffic studies to determine the bandwidth need for the voice and data traffic during peak hours.
D. Traffic studies to determine when the traffic will be sent across the WAN during non-peak hours.
Answer: C
59. Which of the following are used to prioritize traffic across a WAN IP network?
A. RIP
B. OSPF
C. DiffServ
D. BGP
Answer: C
60. Which of the following must take place in order for a digital phone to communicate with an IP phone?
A. The dial plan must connect the digital phone to the IP bus.
B. The phone system will have to convert the voice from TDM to IP.
C. A dial plan must be established to identify the IP phone to the system.
D. The IP phone will have to convert the voice from IP to TDM.
Answer: B
