A、Prime vertical circle
B、Principal vertical circle
C、Parallels of altitude
D、Horizon
更多“In the horizon system of coordinates what is equivalent to the equator on the Earth?（）.”相关的问题
A、is most accurate before sunrise B、is most accurate after sunset C、should only be observed when the Sun's lower limb is above the horizon D、is most accurate when the Sun's center is observed on the visible horizon
A、changes in seawater salinity B、glare on clouds on the horizon C、changes in air temperature D、icebergs
A、Routing loops, hold down timers B、Switching loops, split horizon C、Routing loops, split horizon D、Switching loops, VTP E、Routing loops, STP F、Switching loops, STP
A、A. Only routers can split boundaries (horizons) between networks in separate AS numbers. B、B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries. C、C. Once a route is received on an interface, advertise that route as unreachable back out the same interface. D、D. Information about a route should never be sent back in the direction from which the original update came. E、
A、a vessel arrives at a port in a evening B、a vessel leaves a port in a evening C、a vessel arrives at a port in a morning D、a vessel leaves a port in a morning
A、A flashing yellow light B、A red light visible all around the horizon C、A green light visible all around the horizon D、An illuminated red and yellow caution flag
A、motion of the Earth in its orbit B、rotation of the Earth on its axis C、the body's orbital motion during the time required for its light to reach the Earth D、a false horizon
A、Only routers can split boundaries (horizons) between concentric networks. B、Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries. C、Networks can only remain fully converged if all information is sent out all active interfaces. D、Information about a route should not be sent back in the direction from which the original update came. E、Distance vector protocols need fall back routers that are responsible for momentary loops.
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