642-270 by Cisco Actual Free Exam Q&As

Question 1 ( Topic 1 )

On a Cisco TelePresence CLI, which command is the correct syntax to get Layer 2 address of all connected devices?

A. show arp list
B. utils arp list
C. arp list active
D. arp list list
E. show arp active

Answer : B

Question 2 ( Topic 1 )

On a Cisco TelePresence CLI, which command is the correct syntax to run a traceroute to a remote host?

A. network traceroute {dest}
B. tracert {dest}
C. utils network tracert {dest}
D. set tracert {dest}

Answer : C

Question 3 ( Topic 1 )

Which QoS mapping is the best practice for Cisco TelePresence systems?

A. CoS 5 to map to a DSCP value of 40
B. CoS 4 to map to a DSCP value of 46
C. CoS 3 to map to a DSCP value of 48
D. CoS 5 to map to a DSCP value of 16
E. CoS 4 to map to a DSCP value of 32

Answer : E

Question 4 ( Topic 1 )

Which statement describes the Hard-lock VIP mode of a Cisco TelePresence Multipoint conference?

A. No Cisco TelePresence endpoint is allowed to join without the VIP approval.
B. No Cisco TelePresence endpoint is allowed to join until the designated VIP Cisco TelePresence endpoint joins.
C. VIP video is switched out temporarily with voice-activated switching; VIP video is switched back automatically.
D. VIP video is always displayed at all sites and is never switched out.

Answer : D

Question 5 ( Topic 1 )

Given the following:
Cisco Telepresence endpoint A:
In the CiscoUnifiedCommunication Manager, Quality is set to High detail, Good Motion 720p
Cisco Telepresence endpoint B:
In the Unified CM, Quality is set to High detail, BestMotion1080p
What happens when Cisco TelePresence endpoint A calls Cisco TelePresence endpoint B?

A. Cisco TelePresence endpoint A gets a fast busy.
B. The call connects, but it drops with a "Configuration mismatch" error on Cisco TelePresence endpoint B.
C. Cisco TelePresence endpoint B quality upgrades to 1080p and the call goes through at 1080p.
D. Cisco TelePresence endpoint B quality drops down to 720p and the call goes through at 720p.