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多項(xiàng)選擇題

Which three are optional extensions of the Frame Relay Local Management Interface specification？（）

A.switched virtual circuit
B.virtual circuit status
C.simple flow control
D.multicasting
E.permanent virtual circuit

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多項(xiàng)選擇題

In the Carrier Support Carrier （CsC） feature， which two protocols run CSC-PE and CSC-CS ？（）

A.EBGPv4 with a sending community
B.IGP and LDP
C.EBGPv4 with a sending label
D.IGP and EBGPv4
E.IGP and RSVP

單項(xiàng)選擇題

Which statement about standard STS-1 SONET framing is true？（）

A.8 rows by 64 bytes
B.6 rows by 64 bytes
C.10 rows by 96 bytes
D.8 rows by 128 bytes
E.9 rows by 90 bytes

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