Huawei H31-311_V2.5 Exam - Topic 1 Question 32 Discussion
Are the following statements regarding the definition of SDH correct?
D) Complete hierarchy of standard mathematical signals, providing simultaneous digital transmission multiplexing and cross-connectivity
A) hierarchy that can be used for asynchronous digital transfers
B) A hierarchy of standardized digital signals that can be asynchronously reused
C) A hierarchy of standardized digital signals that can be cross-connected asynchronously
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