Troubleshooting Cisco IP Telephony and Video 300-080 certification test guides Passtcert

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Share some CCNP Collaboration 300-080 exam questions and answers below.
Which three network conditions and equipment should you avoid to ensure a high-quality Cisco TelePresence experience? (Choose three.) 
A. network hubs 
B. Layer 3 switches 
C. duplex mismatch connections 
D. 10/100 access ports 
E. high utilization link with QoS 
F. network loops 
G. redundant network trunks 
Answer: A,C,F

You are troubleshooting video quality issues on a Cisco TelePresence TX9000 Series system. Which CLI command shows the total number of lost video packets and the received jitter during a call in progress? 
A. show call statistics video 
B. show call statistics all 
C. show call statistics detail 
D. show call statistics video detail 
Answer: D

How does an IP Phone react upon initilization, if there is no CTL and ITL files present on the device? 
A. The phone downloads only the files that are signed to that device. 
B. The phone blindly trusts the next series of downloaded files. 
C. The file matches the signature against the files on TFTP. 
D. The phone displays the message, Unprovisioned. 
Answer: D

Which two issues can prevent an IP Phone from receiving an IP address via DHCP? (Choose two.) 
A. The DHCP server is not on the same VLAN as the phone. 
B. The DHCP scope's leases are exhausted. 
C. DHCP Option 150 is incorrect. 
D. The TFTP server is not reachable. 
E. The DHCP scope is not defined for the subnet of the phone. 
Answer: A,B

When identifying Cisco TelePresence Endpoint traffic characteristics, which three statements are true? (Choose three.) 
A. Latency, jitter, and loss are measured in a round-trip fashion. 
B. Latency, jitter, and loss are measured unidirectionally. 
C. Latency and loss are measured at a packet level, based on RTP header sequence numbers and time stamps. 
D. Latency and jitter are measured at a packet level, based on RTP header sequence numbers and time stamps. 
E. Jitter is measured at a video frame level, by measuring the arrival time of the video frame versus the expected arrival time. 
F. Jitter is measured at a packet level, by measuring the arrival time of the packet versus the expected arrival time. 
Answer: B,C,E 

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