多項選擇題

Refer to the exhibit. Which three statements accurately describe this GLBP topology？（Choose three.）（）

A. Router A is responsible for answering ARP requests sent to the virtual IP address.
B. If Router A becomes unavailable， Router B will forward packets sent to the virtual MAC address of Router A
C. If another router were added to this GLBP group， there would be two backup AVGs
D. Router B is in GLBP listen state.
E. Router A alternately responds to ARP requests with different virtual MAC addresses.
F. Router B will transition from blocking state to forwarding state when it becomes the AVG

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單項選擇題

Which statement about the Lightweight Access Point Protocol （LWAPP） is true？（）

A. LWAPP encrypts control traffic between the AP and the controller.
B. LWAPP encrypts user traffic with a x.509 certificate using AES-CCMP
C. LWAPP encrypts both control traffic and user data.
D. When set to Layer 3， LWAPP uses a proprietary protocol to communicate with the Cisco Aironet APs.

單項選擇題

Which statement is true about IP telephony calls？（）

A. A Voice over IP （VoIP） packet consists of the voice payload， IP header， TCP header， RTP header， and Layer 2 link header.
B. The voice carrier stream uses H323 to set up， maintain， and tear down call endpoints.
C. Call control signaling uses Real-Time Transport Protocol （RTP） packets that contain actual voice samples.
D. The sum of bandwidth necessary for each major application， including voice， video， and data， should not exceed 75 percent of the total available bandwidth for each link.

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Refer to the exhibit. Which three statements accurately describe this GLBP topology？ （Choose three.）（）

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Which statement about the Lightweight Access Point Protocol （LWAPP） is true？（）

Which statement is true about IP telephony calls？（）

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Refer to the exhibit. Which three statements accurately describe this GLBP topology？（Choose three.）（）

Which statement about the Lightweight Access Point Protocol （LWAPP） is true？（）