A.Municipal-level metropolitan independent AS, the network scale is not large, and the planning is IS-IS level 2

B.IGP adopts the SS protocol. Generally, the total number of routers in the provincial network AS domain does not exceed 400 and can be planned as a region; the provincial, city, and county wide area core and provincial metropolitan area core and aggregation equipment are planned as ISHS level. 2;

C.County-level metropolitan area independent AS, the network scale is not large, and the planning is IS- IS level 1

D.The COST value of the physical link between the nodes in the default slice is set according to the link bandwidth; the COST value of the independent slice is 100 times that of each link in the default slice.

A.False

B.True

A.Synchronize problems and requirements in customer testing, track and solve them

B.Testers are familiar with the production environment and can actively log in to the production switch to complete network configuration for customers.

C.After the POC test is completed, track and cooperate with the customer to recycle the POC equipment

D.POC equipment is not connected to production services. If the customer insists on connecting the POC equipment to the production service, obtain a written disclaimer from the customer for the production network test, continue to track the customer's test progress, synchronize risks and problems in a timely manner, and formulate corresponding measures

A.A VPN can select two Hubs from multiple Hubs as branch interworking Hubs

B.Support multi-hub scenarios based on business network segments

C.Branch interworking hubs in VPN can work in active-active mode

D.Support multi-active Hub scenarios based on Spoke sites

A.Threatened IP

B.Threat source IP

C.Event Level

D.Time