There are many kinds of WAN interfaces. Which of the following descriptions of WAN interfaces is correct is ______. (Multiple choice)

• A.The V.35 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
• B.The V.24 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
• C.BRI/PRI interface is used for ISDN access, the default link encapsulation is PPP
• D.The G.703 interface provides high-speed data synchronous communication services.

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Regarding the compressed expression of the IPv6 address 2001:0410:0000:0001:0000:0001:0000:45FF, which of the following is correct? (multiple choice)

• A.2001:41:0:1:0:1:0:45FF
• B.2001:410:0:1::45FF
• C.2001:410::1::45FF
• D.2001:410:0:1:0:1:0:45FF

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A company needs to connect to the WAN to form a corporate network, and the bandwidth of the connection is required to be greater than 1Mbps. Which of the following interfaces and protocols are available?

• A.PRI interface and cable, bundle multiple time slots, use PPP as the link layer protocol
• B.V.35 protocol interface and cable, using Frame Relay as the link layer protocol
• C.V.35 protocol interface and cable, using PPP as the link layer protocol
• D.BRI interface and cable, bundling multiple time slots, using PPP as the link layer protocol.

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There are many kinds of WAN interfaces. The following description of the WAN interface is wrong.

• A.The V.35 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
• B.The V.24 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
• C.BRI/PRI interface is used for ISDN access, the default link encapsulation is PPP
• D.The G.703 interface provides high-speed data synchronous communication services.

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The customer router MSR-1 configures the MP to connect to the MSR-2 through interfaces S0/0 and S0/1. Currently, the MP is running normally. At the same time, the two routers run RIP to complete the route learning of the LAN segment of the two routers. Then the Metric value of the RIP route learned on MSR-1 may be ______. (Multiple choice)

• A.2
• B.2M
• C.1
• D.4M

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