Cisco 300-075 Online Practice Questions and Exam Preparation

Cisco 300-075 Online Questions & Answers

• Question 181:

  Which two statements about Expressway-C / Expressway-E Firewall Traversal are correct? (Choose two.)

  A. SIP or H.323 "fixup" ALG or awareness functionality must be enabled on the NAT firewalls.
  B. The communications between Expressway-C and Expressway-E are always initiated from the Expressway-C to the Expressway-E.
  C. The communications between Expressway-C and Expressway-E are always initiated from the Expressway-E to the Expressway-C.
  D. SIP or H.323 "fixup" ALG or awareness functionality must be disabled on the NAT firewalls.
  E. SIP or H.323 "fixup" ALG or awareness functionality must be enabled on the NAT firewall between the DMZ and the Internet only.
  B. The communications between Expressway-C and Expressway-E are always initiated from the Expressway-C to the Expressway-E.
  D. SIP or H.323 "fixup" ALG or awareness functionality must be disabled on the NAT firewalls.

• Question 182:

  In a Cisco Unified Communications Manager centralized call processing model, what is the best CAC method recommended for this type of deployment?

  A. QoS-based
  B. location-based
  C. RSVP-based
  D. region-based
  E. gateway-based
  F. gatekeeper-based
  B. location-based

• Question 183:

  On which two call logs is the media encryption enforced in a Collaboration Edge design? (Choose two.)

  A. Expressway-C to Cisco Unified Communications Manager
  B. Expressway-C to Expressway-E
  C. Expressway-E to outside-located endpoint
  D. Expressway-E to Cisco Unified Communications Manager
  E. Expressway-C to internal endpoint
  B. Expressway-C to Expressway-E
  C. Expressway-E to outside-located endpoint

• Question 184:

  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.)

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

• Question 185:

  Which two statements about Cisco Unified Mobility are true? (Choose two.)

  A. Mobile use of Cisco Jabber requires mobility.
  B. Single number reach is a feature of mobility.
  C. Mobility is enabled by default.
  D. Mobility must be enabled per user.
  E. Mobility is used to support mobile phones in Cisco Unified Communications Manager.
  B. Single number reach is a feature of mobility.
  D. Mobility must be enabled per user.

• Question 186:

  Which CAC configuration on a gatekeeper restricts to 10 G.711 audio calls?

  A. Use the command bandwidth 10.
  B. Use the command bandwidth 1280.
  C. Use the command bandwidth 160.
  D. Use the command bandwidth session 10.
  B. Use the command bandwidth 1280.

• Question 187:

  The VCS Expressway can be configured with security controls to safeguard external calls and endpoints. One such option is the control of trusted endpoints via a whitelist. Where is this option enabled?

  A. on the voice-enabled firewall at the edge of the network
  B. on the VCS under Configuration > registration > configuration
  C. on the TMS server under Registrations > whitelist
  D. on the VCS under System > configuration > Registrations
  B. on the VCS under Configuration > registration > configuration

• Question 188:

  How does Cisco Extension Mobility work?

  A. A user can move the phone anywhere within the cluster, its calls will be routed out the local gateway.
  B. A user can log in to any IP phone in the cluster, that phone is dynamically configured with the user configurations.
  C. A user can define several remote destinations so that a call to the IP phone rings their mobile and home destinations simultaneously.
  D. A user can choose one of several wireless IP phone models for mobile IP communication throughput the WLAN coverage area.
  E. A user can log into any phone in the cluster and receive a DN from a predefined range.
  B. A user can log in to any IP phone in the cluster, that phone is dynamically configured with the user configurations.

• Question 189:

  An engineer implemented a VCS as a gateway to allow SIP and H323 endpoints to register, what recommended protocol or gateway should be used?

  A. SIP trunk gatekeeper
  B. H323 gateway
  C. H321 gateway-based
  D. SIP
  B. H323 gateway

• Question 190:

  An engineer must resolve a call failure issue. When using RTMT, the engineer notices that the Location Bandwidth Manager-OutOfResources counter is showing a positive value. Which option is the cause of the call failure?

  A. lack of audio bandwidth
  B. lack of video bandwidth
  C. lack of transcoding resources
  D. lack of audio or video bandwidth
  E. lack of conferencing resources
  A. lack of audio bandwidth