300-075 practice test

1. Question 1 · 1

   What is the default DSCP/PHB for TelePresence video conferencing packets in Cisco Unified Communications Manager?

   Choose one answer.

   • EF/46
   • CS6/48
   • AF41/34
   • CS3/24
   • CS4/32

2. Question 2 · 1

   An engineer must enable video desktop sharing between a Cisco Unified Communications Manager registered video endpoint and a Cisco VCS registered video endpoint. Which protocol must be enabled in SIP profile for VCS SIP trunk on Cisco Unified Communications Manager?

   Choose one answer.

   • RDP
   • H.264
   • H.224
   • H.263
   • BFCP

3. Question 3 · 1

   Which two options are functionalities of subzones in a Cisco VCS deployment? (Choose two.)

   Choose all answers that apply.

   • Resolve names outside of the direct control of the Cisco VCS that exist on the public Internet.
   • Connect to another Cisco VCS on the same side of the firewall to extend dialing capabilities.
   • Traverse a firewall from a protected network to a public or DMZ network.
   • Apply registration, authentication, and media encryption policies.
   • Manage bandwidth to restrict standard definition endpoints from using more than 2 Mb of bandwidth.

4. Question 4 · 1

   Which two options should be used to create a secure traversal zone between the Expressway-C and Expressway-E? (Choose two.)

   Choose all answers that apply.

   • Expressway-C and Expressway-E must trust each other's server certificate.
   • One Cisco Unified Communications traversal zone for H.323 and SIP connections.
   • A separate pair of traversal zones must be configured if an H.323 connection is required and Interworking is disabled.
   • Enable username and password authentication verification on Expressway-E.
   • Create a set of username and password on each of the Expressway-C and Expressway-E to authenticate the neighboring peer.

5. Question 5 · 1

   A presales engineer is working on a quote for a major customer and must evaluate how many Cisco VCS Expressway traversal call licenses for which to plan. Calls to and from which three routes must the engineer include in the tally? (Choose three.)

   Choose all answers that apply.

   • gateway
   • Cisco 9971 Endpoint
   • border controllers
   • gatekeeper
   • SIP trunk
   • VCS

6. Question 6 · 1

   You have deployed a Cisco 2821 ISR to perform as an SRST voice gateway at a remote site. During a network failure between the remote site and the central office, some of the phones located at the remote site are unable to make phone calls. Which two options are potential causes of the problem? (Choose two.)

   Choose all answers that apply.

   • The site has exceeded the number of SRST endpoints supported by the voice gateway.
   • The ccm-manager fallback command is configured incorrectly on the voice gateway.
   • Phones at the remote site are assigned to the incorrect device pool.
   • The ccm-manager fallback-mgcp command is configured incorrectly on the voice gateway.
   • The site has exceeded the number of simultaneous calls allowed in SRST mode.

7. Question 7 · 1

   Refer to the exhibit. An engineer is deploying a new Cisco VCS Expressway for a company and has configured the IP address and the system name. After logging into the Cisco VCS Expressway admin page, the engineer sees this output. Which four options must be configured to complete the Cisco VCS Expressway system configuration? (Choose four.)

   Choose all answers that apply.

   

   • NTP server
   • SIP server
   • LDAP server
   • security certificate
   • DHCP server
   • DNS server
   • SIP URI
   • Cisco Unified Communications Manager IP address

8. Question 8 · 1

   Which solution is needed to enable presence and extension mobility to branch office phones during a WAN failure?

   Choose one answer.

   • SRST without MGCP fallback
   • SRST with VoIP dial peers to Cisco Unified Communications Manager Express
   • SRST with MGCP fallback
   • Cisco Unified Communications Manager Express in SRST mode

9. Question 9 · 1

   What is the standard Layer 3 DSCP media packet value that should be set for Cisco TelePresence endpoints?

   Choose one answer.

   • CS3 (24)
   • EF (46)
   • AF41 (34)
   • CS4 (32)

10. Question 10 · 1

    Refer to the exhibit. An engineer is troubleshooting a Cisco VCS Control call-routing issue. What happens when ccnpcollab is dialed?

    Choose one answer.

    

    • The call is routed as ccnpcollab.
    • The call is not routed.
    • The call is routed to cisco.com as ccnpcollab
    • The call is routed as ccnpcollab@cisco.com

11. Question 11 · 1

    Refer to the exhibit. An engineer receives a ticket to troubleshoot a one-way audio issue with these symptoms: ✑ User A can hear user and vice versa. ✑ User A can hear user C, however user cannot hear user A. ✑ User can heat user C, however user cannot hear user . Which two properties are the most likely reasons for this issue? (Choose two.)

    Choose all answers that apply.

    

    • The Cisco VCS Expressway is not responding to the SIP INVITE coming from the Cisco VCS Control.
    • The NAT device is allowing only RTP/RTCP ports from the DMZ to the internal network.
    • The router does not have a route back from the DMZ to the internal network.
    • The Cisco EX60 of user С is not responding to requests coming from the TMS server.
    • The Cisco EX60 default gateway of user С is missing from the network configuration.

12. Question 12 · 1

    You have deployed a Cisco 2821 ISR to perform as an SRST voice gateway at a remote site. During a network failure between the remote site and the central office, some of the phones located at the remote site are unable to make phone calls. Which two options are potential causes of the problem? (Choose two.)

    Choose all answers that apply.

    • The ccm-manager fallback-mgcp command is configured incorrectly on the voice gateway.
    • The site has exceeded the number of SRST endpoints supported by the voice gateway.
    • Some phones at the remote site are assigned to a device pool without SRST reference.
    • The site has exceeded the number of simultaneous calls allowed in SRST mode.
    • The ccm-manager fallback command is configured incorrectly on the voice gateway.

13. Question 13 · 1

    An engineer is performing an international multisite deployment and wants to create an effective backup method to access TEHO destinations in case there is a call failure through the primary route. Which technology provides this ability?

    Choose one answer.

    • CFUR
    • LRG
    • AAR
    • SRST

14. Question 14 · 1

    Which statement about TEHO is true?

    Choose one answer.

    • The dial plan is simplified with local route groups.
    • Local route groups add complexity to the dial plan.
    • Toll charges can be reduced when TEHO is implemented with CAC.
    • Toll charges can be reduced when TEHO is implemented with MGCP fallback.

15. Question 15 · 1

    Refer to the exhibit. Which statement is true?

    Choose one answer.

    

    • Endpoints can make calls to unknown IP addresses without the VCS querying any neighbors.
    • If the VCS receives a call to an unknown IP address, it queries its neighbors for the remote address and if permitted, it routes the call through the neighbor.
    • Endpoints that are registered directly to the VCS can call only an IP address of a system that is also registered directly to that VCS.
    • Dialing by IP address is not supported on VCS.

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