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Using FTP passive mode， after the client opens thecommand channel （port 21） to the FTP server and requests passive mode， what will be the next step？ （）
- A、 The FTP server sends back an acknowledgment （ACK） to the client
- B、 The FTP server allocates a port touse for the data channel and transmit that port number to the client
- C、 The FTP server opens the data channel to the client using the port number indicated by the client
- D、 The FTP client opens the data channel to the FTP server on Port 20
- E、 The FTP client opens the datachannel to the FTP server on Port 21
参考答案
更多 “Using FTP passive mode， after the client opens thecommand channel （port 21） to the FTP server and requests passive mode， what will be the next step？ （）A、 The FTP server sends back an acknowledgment （ACK） to the clientB、 The FTP server allocates a port touse for the data channel and transmit that port number to the clientC、 The FTP server opens the data channel to the client using the port number indicated by the clientD、 The FTP client opens the data channel to the FTP server on Port 20E、 The FTP client opens the datachannel to the FTP server on Port 21” 相关考题
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int put *B
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单选题Using FTP passive mode， after the client opens thecommand channel （port 21） to the FTP server and requests passive mode， what will be the next step？ （）A
The FTP server sends back an acknowledgment （ACK） to the clientB
The FTP server allocates a port touse for the data channel and transmit that port number to the clientC
The FTP server opens the data channel to the client using the port number indicated by the clientD
The FTP client opens the data channel to the FTP server on Port 20E
The FTP client opens the datachannel to the FTP server on Port 21
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单选题Which statement about the S-Series native FTP proxy is not true？（）A
both active and passive modes FTP are supportedB
by default the FTP proxy uses port 8021C
access polices may apply to native FTP trafficD
data loss prevention policies may apply to native FTP trafficE
authentication is supported in transparent mode
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