A.A voice packet is sent via multiple fixed-length cells; a portion of the last cell is padding, requiring more bandwidth.
B.ADSL typically uses PPPoE encapsulation, which adds additional overhead to each voice packet.
C.A voice packet is sent via multiple fixed-length cells; each cell has about 10% Layer-2 header overhead.
D.IPSec requires additional overhead for the header and hash.
E.ADSL carrier band requires additional bits to be carried over the wire to the DSL Access Concentrator.
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Refer to the exhibit. With an IPSec tunnel established between remote Router A and head-end router B, how can the Service Provider Edge Router identify Voice over IP packets flowing through the IPSec tunnel from a Cisco 7960 IP phone?（）
A.UDP ports 16384 through 32727
B.ESP packets less than 113 byes
C.DiffServ codepoint EF Expedited Forwarding
D.RTP ports 6970 through 6999
Refer to the exhibit. An enterprise's security policy disallows the use of wireless on a Teleworker PC. Choose the most appropriate 830 security feature to use to enforce the security policy.（）
A.802.1X authentication
B.authentication proxy
C.Context Based Access Control
D.Lock and Key authentication
Refer to the exhibit. Available public Internet sites are sometimes used for estimating performance. Which statement regarding their use for estimating VPN performance is correct?（）
A.Throughput results are valid as a value from the Teleworker's home to the corporate site, regardless of the location of the public test server.
B.Throughput results may not be valid due to the public server's location on the Internet and fluctuations based on the use of the public server.
C.Throughput values are not affected by the choice of split tunneling or Internet access through the VPN.
D.Throughput results are unrelated to the Teleworker PC configuration or current PC use.
A.256kbps / 1024kbps
B.256kbps / 1544kbps
C.160kbps / 768kbps
D.384kbps / 384kbps
E.128kbps / 512kbps
A.Process Switching
B.Silicon Switching
C.Cisco Express Forwarding (CEF) Switching
D.Autonomous Switching
最新試題
Refer to the exhibit. Which of the following IOS DHCP configuration statements is required so that a Cisco skinny-based IP phone can connect with CallManager?（）
Choose the false statement concerning the use of CiscoWorks Internetwork Performance Monitor (IPM) in a Teleworker deployment.（）
Refer to the exhibit. Given the configuration on a Teleworker router, and knowing it was in the process of being booted, what statement would best describe the order in which the head-end peers would be selected?（）
What characteristics make ADSL the likely choice among DSL technologies for Teleworker?（）
Refer to the exhibit. Which statement is true regarding the topology?（）
In a Teleworker deployment with a single IP phone connected to a Cisco 831 router, select the true statement regarding Call Admission Control.（）
Refer to the exhibit. Given this deployment model, what capability must the Broadband Router provide for the Enterprise applications to function properly?（）
An Enterprise decides to implement Authentication Proxy for per-user authentication for home offices. Each home office also supports an IP Phone. What should you do?（）
Refer to the exhibit. Given the DHCP pool configuration shown on Router A, the Cisco IP phone will not boot up in the Teleworker location. What is missing from the Teleworker DHCP pool configuration?（）
Refer to the exhibit. Given this DSL router's sub-interface configuration, select the two true statements. Assume the interface is UP/UP.（）