单项选择题
Context-Based Access Control (CBAC) is the algorithm of the Cisco IOS firewall feature. How does CBAC improve Teleworker security?（）
A.Inbound packets are permitted only if they are part of a legitimate data flow initiated by a device on the Teleworker home network.
B.All packets are checked for integrity by analyzing their checksum.
C.Every packet is checked to see if it was sent through the VPN tunnel.
D.Every packet is inspected to see if any disallowed URLs are included. URLs are forwarded to the security cache engine for authorization.
相关考题
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单项选择题
Refer to the exhibit. Given the interface configuration on a DSL connection with PPPoE, select the true statement.（）
A.The router is limiting the size of TCP and UDP packets.
B.The configuration implements an effective Layer-2 fragmentation technique.
C.The value of 542 is recommended in several RFCs.
D.There is another upstream router terminating the PPPoE session. -
多项选择题
ForEthernet-to-Ethernetrouters,suchastheCisco831behindacablemodemorDSLbridge,atrafficshaperisconfigured.Thisisrequiredsincetheoutput10-Mbpsinterfacewillnotbecongested.Whichtwostatementsaretrue?（）
A.The parent policy-map shapes and the child policy-map queues.
B.The mean-rate and burst-size must always be the same value.
C.This will not work without a Dialer interface configured.
D.The shaper provides congestion feedback. -
单项选择题
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?（）
A.The remote router would load-balance between peer x.x.x.x and x.y.y.y.
B.Peer x.x.x.x would be attempted first.
C.A round-robin selection is implemented.
D.If the first peer in the list does not respond in 50 milliseconds, the second peer would be selected.
E.There is no pre-determined order of selection.
