H31-311_V2.5 Exam Dumps | Modulation is the process of processing the information of the signal source and adding it to the carrier

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Question 266/336

Modulation is the process of processing the information of the signal source and adding it to the carrier to make it suitable for channel transmission. It is a technology that changes the carrier with the signal. There are two types of modulated signals, namely analog signals and digital signals. Using analog signals to control the change of carrier parameters is called analog modulation; using data signals to control the change of carrier signal parameters is called digital modulation.

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(Multiple choi...; Question 51: Which of the following bytes in the regenerator section over...; Question 52: Which of the following factors determine that the optical s...; Question 53: The receiving end performs BIP-8 check on the received STM-...; Question 54: Which of the following logic function blocks is used to proc...; Question 55: Which of the following is not an advantage of WDM?...; Question 56: Which of the following are not passive optical devices? (Mul...; Question 57: Which of the following is the main advantage of SDH? 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When the receiving end re...; Question 173: Which of the following site types support business up and d...; Question 174: The management scope of O MSn is the path from the input op...; Question 175: In a wavelength division system, after a certain distance o...; Question 176: When BIP-8 in the OTUk segment monitoring overhead SM detect...; Question 177: The segment overhead of STM-16 is 9*8*16 bytes/frame....; Question 178: The segment overhead of STM-4 is 9+9+4 lines/frame....; Question 179: HUB is a multi-port repeater. When HUB is the central device...; Question 180: Which of the following service nodes can be connected via a...; Question 181: In the network management system, the network element perfo...; Question 182: MPLS is a label forwarding technology. Which of the followin...; Question 183: E1 has three modes: framing, multi-framing and unframing. 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