MATCHING Match Each Item with a Statement Below

MATCHING
Match each item with a statement below:
a.bus topology WAN
f.upstream
b.star topology WAN
g.asymmetrical communications
c.mesh topology WAN
h.symmetrical technology
d.tiered topology WAN
i.signal level
e.downstream
-Contain sites that are connected in star or ring formations are interconnected at different levels,with the interconnection points being organized into layers to form hierarchical groupings.