300-820 Practice Test

300-820 Practice Test practice questions, page 10 of 11, with answer review and explanations.

Question 46

Refer to the exhibit. The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces? A. B. C. D.

Question 47

An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?

  1. _collab-edge._tls.cisco.com
  2. _cisco-uds._tcp.cisco.com
  3. _sip._tcp.cisco.com
  4. _cuplogin._tcp.cisco.com

Question 48

A call is sent by Cisco UCM to Expressway with a URI of 75080001@expc1a.pod8.test.lab. If (7508`¦)@expc1a\.pod8\.test\.lab.* is the pattern string, what would be the replacement string of the transform in Expressway to re-write the call so that it becomes 75080001@conf.pod8.test.lab?

  1. \1@conf\.pod8.test.lab.@
  2. \1@conf\.pod8\.test\lab.*
  3. \1@conf.pod8\.test\.lab
  4. \1@conf\.pod8\.test.lab.!

Question 49

Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway. An H.323 endpoint with an alias of `EndpointA` is registered, and a SIP endpoint with an alias of `EndpointB@pod1.local` is also registered. How is this issue resolved?

  1. The dialplan must be redesigned to use the transforms to convert the alias into SIP URI format and then use separate search rules for each format that needs to be dialed within the local zone.
  2. The calls are failing because there are insufficient licenses. Additional licenses must be installed for the Expressway to route these calls.
  3. The current search rule does not match the call, so the search rule must be modified to include a SIP Variant of ג€Standards-Basedג€.
  4. Calling parties are placing calls with the wrong domain. End-users must be instructed not to use the pod1.local domain as that is owned by the local system. Calls to any other domain would work.

Question 50

Refer to the exhibit. A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created. What should be done to resolve this issue?

  1. The search rule must be changed to continue on match
  2. The existing zone using ID 7 must be deleted
  3. More bandwidth must be added to the appropriate pipes
  4. The underlying DNS issue must be resolved