题目详情

采用CRC校验的生成多项式为G(x)=x16+x15+x2+1,它产生的校验码是 ()位。

  • A.2
  • B.4
  • C.16
  • D.32

正确答案及解析

正确答案
C
解析

循环冗余校验码CRC(Cyclic Redundancy Check)的长度取决于生成多项式的幂次。如果生成多项式为G(X)=x16+x15+x2+1,则产生的CRC校验码必定是16位。

你可能感兴趣的试题

单选题

The Internet of( 1)(IoT) describes physical objects that are embedded with Sensor,processing abilities,softwares,and other technologies that connect with other devices and systems over the ( 2) or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the ( 3 ) centuryWe can connect objects to the Internet via embedded devices. By means of( 4) computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems,wireless ( 5) networks (WSNs),control systems,automation, independently and collectively enable IoT.回答5处

  • A.sensor
  • B.searching
  • C.service
  • D.source
查看答案
单选题

The Internet of( 1)(IoT) describes physical objects that are embedded with Sensor,processing abilities,softwares,and other technologies that connect with other devices and systems over the ( 2) or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the ( 3 ) centuryWe can connect objects to the Internet via embedded devices. By means of( 4) computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems,wireless ( 5) networks (WSNs),control systems,automation, independently and collectively enable IoT.回答4处

  • A.low-level
  • B.low-cost
  • C.high-cost
  • D.high-performance
查看答案
单选题

The Internet of( 1)(IoT) describes physical objects that are embedded with Sensor,processing abilities,softwares,and other technologies that connect with other devices and systems over the ( 2) or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the ( 3 ) centuryWe can connect objects to the Internet via embedded devices. By means of( 4) computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems,wireless ( 5) networks (WSNs),control systems,automation, independently and collectively enable IoT.回答3处

  • A.19th
  • B.20th
  • C.21th
  • D.22th
查看答案
单选题

The Internet of( 1)(IoT) describes physical objects that are embedded with Sensor,processing abilities,softwares,and other technologies that connect with other devices and systems over the ( 2) or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the ( 3 ) centuryWe can connect objects to the Internet via embedded devices. By means of( 4) computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems,wireless ( 5) networks (WSNs),control systems,automation, independently and collectively enable IoT.回答2处

  • A.path
  • B.Internet
  • C.route
  • D.switch
查看答案
单选题

The Internet of( 1)(IoT) describes physical objects that are embedded with Sensor,processing abilities,softwares,and other technologies that connect with other devices and systems over the ( 2) or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the ( 3 ) centuryWe can connect objects to the Internet via embedded devices. By means of( 4) computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems,wireless ( 5) networks (WSNs),control systems,automation, independently and collectively enable IoT.回答1处

  • A.this
  • B.thing
  • C.think
  • D.things
查看答案

相关题库更多 +