單項選擇題Two sites are using a multisite centralized call processing model. The voice gateway on the remote branch has lost IP connectivity to its Cisco CallManager server. Which feature enables the remote gateway to take the role of the call agent during the WAN failure? ()

A.automated alternate routing (AAR)
B.Cisco CallManager Attendant Console
C.real-time protocol (RTP)
D.Survivable Remote Site Telephony (SRST)


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1.多項選擇題Which two statements regarding the Wireless LAN Solution Engine (WLSE) are true ?()

A.to support fault and policy reporting, the WLSE requires a Wireless Control System (WCS)
B.when WLSE detects an AP failure, it automatically increases the power and cell coverage of nearby APs
C.WLSE requires the 2700 location appliance to offer location tracking
D.WLSE can locate rogue APs and automatically shut them down
E.WLSE configuration is done using the command line interface (CLI) or a WEB based template

2.多項選擇題Which three methods would help prevent critical network-traffic packet loss on high speed interfaces?()

A.policy routing
B.increase link capacity
C.WRED
D.CBWFQ
E.LFI
F.WFQ

3.多項選擇題Which two statements best describe enhanced wireless security encryption?()

A.TKIP protects RC4 encryption keys
B.CKIP and TKIP protect AES encryption keys
C.TKIP encryption is more processor intensive than AES encryption is
D.WPA requires TKIP encryption, whereas WPA2 supports AES encryption
E.WPA requires AES encryption, whereas WPA2 supports TKIP encryption

4.多項選擇題What are three facts control plane policing? ()

A.a set of rules that can be established and associated with the ingress and egress ports of the control plane
B.improves performance of the control plane by marking control plane packets with DSCPEF
C.protects the control plane on a router from DoS attacks
D.treats the control plane as a separate entity with its own ingress (input) and egress (output) ports
E.provides the control plane with a separate token bucket
F.enhances security of the control plane by tunneling packets to and from the control plane

5.多項選擇題Which two statements are true about the Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access version 2 (WPA2) security solutions?()

A.both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key (PSK)
B.both WPA and WPA2 address all known Wired Equivalent Privacy (WEP) vulnerabilities in the IEEE 802.11i security implementation
C.WPA is supported on client devices only. WPA2 is supported on both access point (AP) and client devices
D.WPA provides only a standard for authentication. WPA2 provides a standard for authentication and encryption
E.WPA requires encryption support via Temporal Key Integrity Protocol (TKIP) WPA2 provides encryption support via (symmetric block cipher)AES-CCMP

6.多項選擇題What are two components of the Cisco Lightweight WLAN solution?()

A.WCS
B.WLSE
C.Location Appliance
D.WDS
E.WLSE-Express

7.多項選擇題What are two steps to define a QoS policy?()

A.set a minimum bandwidth guarantee
B.increase bandwidth
C.determine a specific transfer rate
D.establish timers
E.configure CBWFQ for best-effort traffic
F.set a maximum bandwidth limit

8.多項選擇題What are three of the functions that AutoQoS performs when it is configured on a switch?()

A.synchronizes FIFO, PQ, CQ, and MDRR, with WFQ, CBWFQ, and LLQ
B.enables strict priority queuing for voice traffic, and weighted round robin queuing for data traffic
C.enables low latency queuing to ensure that voice traffic receives priority treatment
D.enforces a trust boundary on switch access ports and uplinks/downlinks 
E.modifies queue sizes as well as queue weights where required 
F.adjusts link speeds to adapt to QoS needs

9.單項選擇題Which Cisco IOS traffic-shaping mechanism statement is true? ()

A.class-based policing is configured using the Modular QoS command-line (MQC)
B.only the Frame Relay traffic-shaping (FRTS) mechanism can interact with a Frame Relay network, adapting to indications of Layer2 congestion in the WAN links
C.Distributed Traffic Shaping (DTS) is configured with the police command under the policy map configuration
D.both Frame Relay traffic shaping (FRTS) and virtual IP (VIP)-based Distributed Traffic Shaping (DTS) have the ability to mark traffic

10.多項選擇題For which two network problems would QoS be a good solution?()

A.serialization delay
B.end-to-end delay
C.lack of bandwidth
D.inconsistent port costs
E.routing table convergence issues
F.poor file transfer rates

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Which two QoS classification and marking statements are true? ()

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When Cisco SDM is used to generate QoS policy, various QoS classes will be created and assigned a percentage of the interface bandwidth. Which three statements indicate the default bandwidth values that are assigned by SDM for outgoing traffic on a WAN interface? ()

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For delay sensitive traffic, what are the three best ways that are used to prevent packet loss? ()

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