A、SONET and SDH both use time-division multiplexing.
B、An optical transport network system uses time-division multiplexing.
C、SONET and SDH both use wavelength-division multiplexing.
D、An optical transport network system uses wavelength-division multiplexing.
更多“Which two statements are true about optical networks?（）”相关的问题
A、A. This command is applied to the core router facing interface. B、B. This command is applied to the customer facing interface. C、C. The 4 is locally significant and identifies the layer 2 circuit. D、D. The 4 must match exactly on the peer router configuration on the remote end.
A、A. All the routes were redistributed into BGP from an IGP B、B. All the routes were originated by BGP with the network command C、C. All six routes will be installed in the routing table D、D. Four routes will be installed in the routing ta ble E、E. Two routes will be installed in the routing table
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A、A view can be created as read only. B、A view can be created as a join on two or more tables. C、A view cannot have an ORDER BY clause in the SELECT statement. D、A view cannot be created with a GROUP BY clause in the SELECT statement. E、A view must have aliases defined for the column names in the SELECT statement.
A、A view can be created as read only. B、A view can be created as a join on two or more tables. C、A view cannot have an ORDER BY clause in the SELECT statement. D、A view cannot be created with a GROUP BY clause in the SELECT statement. E、A view must have aliases defined for the column names in the SELECT statement.
A、A.AhubisconnecteddirectlytoFastEthernet0/5 B、B.FastEthernet0/1isconfiguredasatrunklink. C、C.FastEthernet0/5hasstaticallyassignedmacaddress D、D.InterfaceFastEthernet0/2hasbeendisable. E、E.MultipledevicesareconnecteddirectlytoFastEthernet0/1. F、F.FastEthernet0/1isconnectedtoahostwithmultiplenetworkinterfacecards.
A、A then statement is mandatory in a term B、If a term does not contain a from statement, all routers match C、If a term does not contain a from statement, the Junos OS will not commit D、A then statement is not mandatory in a term
A、issuing the ALTER SYSTEM ENABLE RESUMABLE; statement B、issuing the ALTER SESSION ENABLE RESUMABLE; statement C、modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value D、issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=
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A、1 is the default precedence. B、A lower number is preferred. C、A higher number is preferred. D、100 is the default precedence.
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