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【单选题】
牛腿柱的钢筋及预埋件加工必须在( )进行。A.
铺设侧模时
B.
铺设底板支侧模曲
C.
模板安装完成后
D.
混凝土浇筑完成时
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举一反三
【单选题】Hub and spoke systems are characterized by:
A.
"spokes" that are represented by the sites that receive the goods.
B.
"hubs" that hold inventory until the appropriate season or upswing in demand.
C.
inventory locations that are close to producers, not customers.
D.
warehouses that are purely sorting facilities.
【单选题】When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
A.
hub and spoke
B.
PE
C.
CE
D.
hub
E.
spoke
【单选题】What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（）
A.
it avoids split-horizon issues with distance vector routing protocols.
B.
IP addresses can be conserved if VLSM is not being used for subnetting.
C.
A multipoint interface offers greater security compared to point-to-point subinterface configurations.
D.
The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.
【简答题】Hub and spoke routing model is more ________________________ in terms of resource allocation for the airline.
【多选题】What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network？（）
A.
A hub router prevents routes from being advertised to the remote router.
B.
Only remote routers are configured as stubs.
C.
Stub routers are not queried for routes.
D.
Spoke routers connected to hub routers answer the route queries for the stub router.
E.
A stub router should have only EIGRP hub routers as neighbors.
F.
EIGRP stub routing should be used on hub routers only.
【单选题】In regard to a hub and spoke Frame-Relay data network, what kind of physical network is it classified as?（）
A.
point-to-point
B.
broadcast multi-access
C.
nonbroadcast multipoint
D.
nonbroadcast multi-access
E.
broadcast point-to-multipoint
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