單項(xiàng)選擇題

Refer to the exhibit. A Teleworker router is deployed behind a broadband Cable service. If the Teleworker router has the configuration shown, what will be the DNS server selected for DHCP clients on the LAN-side interface?（）

A.DHCP clients will automatically default to the DNS root servers for all DNS requests in the IP stacks locally.
B.DHCP clients will use the IP set in the option 150 command.
C.DHCP clients will use the DNS entry assigned by the ISP.
D.DHCP clients will have no DNS server set in the IP stack.

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多項(xiàng)選擇題

Authentication for user data traffic is important, but so is authentication for IP voice traffic. The Cisco 830 802.1 feature provides an easier method for allowing IP voice traffic through the VPN, because it（）.

A.requires access lists to identify the voice traffic
B.can allow traffic from a device without 802.1X authentication, by MAC address
C.can allow traffic from Cisco IP phones by listening to their CDP advertisements
D.allows all packets marked with a ToS of 5 to bypass authentication
E.allows all IP voice packets to bypass authentication via stateful inspection

多項(xiàng)選擇題

Your Service Provider does not support Link Fragmentation and Interleave, but upstream serialization delay on your broadband link is affecting voice quality. Which two mitigation strategies are viable?（）

A.Upgrade your residential broadband service to at least 768kbps uplink.
B.Switch your home router to use PPP encapsulation.
C.Use the ip tcp adjust-mss interface command.
D.Employ QoS techniques to drop large data packets.
E.Use traffic shaping to interrupt large data packets.

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Refer to the exhibit. A Teleworker router is deployed behind a broadband Cable service. If the Teleworker router has the configuration shown, what will be the DNS server selected for DHCP clients on the LAN-side interface?（）

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Authentication for user data traffic is important, but so is authentication for IP voice traffic. The Cisco 830 802.1 feature provides an easier method for allowing IP voice traffic through the VPN, because it（）.

Your Service Provider does not support Link Fragmentation and Interleave, but upstream serialization delay on your broadband link is affecting voice quality. Which two mitigation strategies are viable?（）

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