Study tips 642-415

which route pattern to use?

what is a disadvantage of using the traditional approach for building classes of service (as compared to the line/device approach)?

What Cisco Unified Communications Manager technology should be deployed so that calls can be completed when the WAN is at full capacity?

What Cisco Unified Communications Manager technology should be deployed so that calls will not cross the WAN when the WAN is at full capacity?

what is the maximum number of voice calls that should be placed between Redmond and the HQ campus without using header compression?

Which Call Admission Control mechanism should you plan to deploy for this eployment?

Which four methods can be used to protect IP phones?

Which three technologies will allow you to design a solution for protecting voice at Layer 2?

Which four attributes must be considered when designing a secure IP telephony solution?

Which two methods can be used to support these requirements and still maintain a high degree of security?