A.TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.
B.The local loop is a dedicated connection for a single subscriber to the DSLAM.
C.Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time.
D.There are no distance requirements from the Central Office (CO).
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Refer to the exhibit. Asymmetric broadband service with significantly greater downstream bandwidth is recommended for Teleworker deployment. Which reason is the most accurate?（）
A.Most ISPs do not provide QoS for residential broadband. Asymmetric bandwidth reduces the chance of downstream congestion when traffic from Internet sites competes for bandwidth with IP voice traffic.
B.Additional downstream bandwidth compensates for insufficient upstream bandwidth. The aggregate bandwidth provides the same result.
C.The additional bandwidth is needed to access more than one site. Most HTTP traffic is downstream.
D.The additional downstream bandwidth allows the Enterprise VPN device to send the IP voice packets much faster, allowing them to reach the Teleworker network with less latency.
A.when all access to the Internet is through the IPSec tunnel
B.when there is direct Internet access via split-tunneling
C.when there is no Internet access configured through the Teleworker router
D.whenever you have IOS-Firewall (CBAC) configured
A.QoS pre-classify permits making QoS decisions based on elements from the unencrypted IP packet.
B.QoS pre-classify is required when encrypting voice.
C.QoS pre-classify is an advantage to Service Providers transporting encrypted packets.
D.QoS pre-classify is not designed for IPSec/GRE configurations.
A.when a router between the Teleworker router and the head-end VPN router is doing NAT/pNAT and does not support IPSec pass-through
B.when the Teleworker router itself is doing NAT/pNAT
C.always
D.never
Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are（）.
A.Deploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups.
B.Teleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths.
C.Teleworkers in Group C should change their subscriptions to DSL for deployment consistency.
D.Teleworkers in Group A should upgrade their subscription to obtain static IP addresses
E.Teleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths.
最新試題
When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）
What are disadvantages of Network Address Translation Transparency?（）
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. Select the true statement.（）
A customer indicates they run a mission-critical application which marks its packets best-effort (DSCP=0). How can you guarantee delivery of this traffic?（）
Refer to the exhibit. Which statement is true regarding the topology?（）
An Enterprise customer wants to reduce the configuration effort for their Teleworker router deployments. What is one way to simplify the IPSec-related configuration in the remote routers?（）
It is considered a best practice to use the Dead Peer Detection (DPD) feature with which VPN topologies?（）
Refer to the exhibit. Given this deployment model, what capability must the Broadband Router provide for the Enterprise applications to function properly?（）
For Ethernet-to-Ethernet routers, such as the Cisco 831 behind a cable modem or DSL bridge, a traffic shaper is configured. This is required since the output 10-Mbps interface will not be congested. Which two statements are true?（）