BGP Is an exterior gateway protocol which runs among ASs. It focuses on routes control and selection of optimal routes rather than discovery and calculation of routes.

• A.True
• B.False

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Which of the following statements disobey the basic principle of area division?

• A.One network maybe includes high-end, mid-end and low-end routers. Generally, all of these routers will be in same area.
• B.In the network, there are some sub networks such as 110.1.1.0/24,110.1.2.0/24,110.1.3.0/24, 120.1.1.0/24,120.1.2.0/24 ,120.1.3.0/24.Then all the routers belonging to 110 network can be configured in one area.
• C.Make all routers with larger routing-table into one area.
• D.If the ISP runs OSPF protocol in the whole province network, then one city can be taken as one area.

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After the SR LSP or SR-TE tunnel is established, which of the following methods can be used to import service traffic to the SR LSP or SR-TE tunnel?

• A.Tunnel policy
• B.Automatic routing
• C.Static routing
• D.Policy-based routing

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Which of the following statements is correct regarding virtual router?

• A.If multiple routers are configured with the same virtual IP address, they all associate to the same virtual router.
• B.If multiple routers associate to the same virtual router, they must be configured with the same virtual router ID and virtual IP address.
• C.If multiple routers are configured with the same virtual router ID.they all associate to the same virtual router.
• D.If multiple routers associate to the same virtual router, they must be configured with the same virtual router ID and at feast one virtual IP address.

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The VRRP advertfse-lnterval is 2s, preempt mode is enabled, Delay Time is 3s, then which of the following is the Master_Down_Interval time?

• A.9s
• B.2s
• C.6s
• D.4s

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