快乐学习
一个网站喵查铺子（catpuzi.com）全搞定~
A、d
B、d+1
C、d+2
D、2d +1
喵查答案：2d +1
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A、Hamming
B、CRC
C、Horizontal vertical parity check code
D、Horizontal or vertical parity check code
喵查答案：CRC
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A、Only the data link layer has flow control
B、Not only the data link layer has flow control, but the flow control objects of each layer are the same
C、Not only does the data link l……继续阅读 »
A、Connectivity-oriented service with confirmation
B、Connectivity-free service without confirmation
C、Confirmed Connectionless Service
D、Confirmed Connectionless Service
喵查答案：Connec……继续阅读 »
A、Frame synchronization function
B、Circuit management function
C、Error control function
D、Flow control function
喵查答案：Circuit management function
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A、4
B、5
C、6
D、8
喵查答案：5
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A、1
B、2
C、6
D、7
喵查答案：7
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A、Asynchronous balanced mode
B、Unbalanced asynchronous response mode
C、Non-equilibrium normal response mode
D、A, B, C
喵查答案：Asynchronous balanced mode
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A、Parity
B、Hamming
C、Gray
D、Cyclic Redundancy (CRC)
喵查答案：Cyclic Redundancy (CRC)
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A、Check each character one by one
B、Can check out more than 99% of errors
C、The error with even number of bit errors cannot be checked
D、Is not as reliable as the parity check meth……继续阅读 »
A、Calculation error
B、Parity error
C、Random error
D、CRC check error
喵查答案：Random error
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A、Abnormality and attenuation of signal amplitude, frequency and phase randomly generated on physical lines
B、Echo effect caused by reflection of electrical signals on the line
C、T……继续阅读 »
A、Number the sending frame
B、Cyclic redundancy code
C、Hamming code
D、Timer’s timeout retransmission
喵查答案：Timer’s timeout retransmission
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A、Error correction rate
B、Error rate
C、Minimum data transmission rate
D、Maximum data transmission rate
喵查答案：Error rate
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A、Bit error rate is a parameter to measure the transmission reliability of the data transmission system under the normal working state
B、For an actual data transmission system, the……继续阅读 »
