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


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1.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

2.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

3.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

4.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

5.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

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