Free Cisco 642-437 Exam Dumps Questions & Answers

Which version of Cisco Unified Communications Manager Express is recommended that is supported on endpoints running Cisco IOS 15.0(1)M?

• A.8
• B.8.5
• C.7.1
• D.7

Which three methods are used by a Cisco Unified Border Element to provide network hiding? (Choose three.)

• A.IP network security boundary
• B.Media flow-through
• C.Back-to-back user agent, replacing all H.323-embedded IP addressing
• D.Intelligent IP address translation for RTP flows
• E.RSVP
• F.IP network privacy and topology hiding

Which command is used to enable the AutoQoS feature on an incoming interface while also trusting existing quality of service markings?

• A.router(config)#auto qos voip trust interface interface
• B.router(config-if)#auto qos voip trust
• C.router(config-if)#auto qos voip
• D.router(config)#auto qos voip interface interface

Which signaling protocol is proprietary to Cisco?

• A.SIP
• B.SCCP
• C.H.323
• D.MGCP

Which statement about the DiffServ model is true?

• A.DiffServ specifies a mechanism for classifying and managing network traffic and providing QoS on modern IP networks.
• B.DiffServ is a way to provide the assurance of sufficiently low delay and packet loss for certain types of applications or traffic.
• C.DiffServ provides traffic management using QoS classifications.
• D.DiffServ is based on building a virtual circuit in the Internet using the bandwidth reservation technique.