單項選擇題A stream of voice packets transmitted over a WAN network encounters differing queuing delays. One router in the path used by the voice packets delays some of the packets for 4 ms while transmitting a large video file, but delays other packets only 2 ms. Another router delays some packets 5 ms, but transmits others in 2 ms. How would you best describe this type of problem?()

A.end-to-end delay
B.interference from bulk data traffic
C.processing delays
D.serialization delays
E.jitter


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A.centralized management for autonomous access points
B.centralized management for lightweight access points
C.integration with the Location Appliance to expand real time tracking to 1500 devices for 30 days
D.integration with the Location Appliance to expand real time tracking to 2500 devices for 15 days
E.the inclusion of an integrated AAA server F an external AAA-server requirement

2.單項選擇題Which statement is true about the SDM QoS wizard and its ability to enable a QoS policy on router interfaces?()

A.QoS can be enabled on interfaces used for Easy VPN clients
B.QoS can be enabled on IPsec VPN interfaces and tunnels
C.QoS can be enabled on interfaces with an existing QoS policy
D.the QoS policy can be enabled for incoming and outgoing traffic on the interface

3.多項選擇題Which two queuing methods will allow a percentage of the available bandwidth to be allocated to each queue?()

A.first-in, first-out queuing (FIFO)
B.priority queuing (PQ)
C.custom queuing (CQ)
D.weighted fair queuing (WFQ)
E.class-based WFQ (CBWFQ)
F.low latency queuing (LLQ)

4.多項選擇題Which two IntServ functions are required on a router?()

A.admission control
B.DSCP classification
C.monitoring
D.marking
E.scheduling

5.多項選擇題What three statements are true about the various deployments of the 802.1x Extensible Authentication Protocol (EAP)?()

A.EAP-FAST has the ability to tie login with non-Microsoft user databases
B.EAP-TLS supports static passwords
C.PEAP supports one-time passwords
D.LEAP does not support multiple operating systems
E.LEAP supports Layer 3 roaming
F.PEAP does not work with WPA

6.多項選擇題For defining the QoS policies for each traffic class, which parameters should be identified? ()

A.minimum bandwidth guarantee
B.average bandwidth guarantee
C.optimum bandwidth guarantee
D.maximum bandwidth rate
E.IP precedence F priority

8.單項選擇題Which QoS preclassification option will require the use of the qos pre-classify command for the VPN traffic? ()

A.VPN traffic needs to be classified based on the Layer2 header information
B.VPN traffic needs to be classified based on the IP precedence or DSCP
C.VPN traffic needs to be classified based on IP flow or Layer 3 information, such as source and destination IP address
D.VPN traffic with Authentication Header (AH) needs to preserve the ToS byte

9.多項選擇題Which two statements about the Wired Equivalent Privacy (WEP) encryption mechanism are true? ()

A.the two methods of authentication using the WEP encryption are open and shared key
B.the 802.11 standard defines WEP security using 128-bit keys
C.WEP can provide stronger authentication through the use of LEAP, PEAP, or EAP-FAST
D.WEP is a scalable encryption solution that uses static keys for authentication
E.WEP security provides only one-way authentication
F.WEPv2 offers improved encryption by replacing the RC4 encryption mechanism with the AES (symmetric block cipher) mechanism

10.單項選擇題Refer to the exhibit. What is the configuration an example of?()

A.enabling modular QoS over Frame Relay
B.enabling Real-Time Transport Protocol (RTP) header compression
C.enabling distributed compressed Transmission Control Protocol
D.enabling latency and jitter reduction for Transmission Control traffic
E.enabling TCP header compression

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