21:20 on Channel 1
21:00 on Channel 2
18:05 on Channel 2
What are two important considerations when using 2- or 4-channel 15216 OADMs?（） (Choose two.)A、All "Add" channels require uniform power levels.B、The flexibility of wavelengths per OADM is limited.C、It is easier to balance "Pass-Through" and "Add" channels.D、There is lower pass-through loss using multi-channel OADMs.E、You can extract a single channel without dropping other channels.
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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 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
Which two statements about SAN port channels configured on Cisco Nexus 5000 Series switches are true？ （） A、 The bring up protocol automatically detects and overrides any misconfiguration.B、 You can manually configure channel groups， or they can be automatically created.C、 Changes in configuration to the SAN port channel interface must also be made to all members of the channel group.D、 The port channel protocol uses the exchange fabric parameters command to communicate across peer ports in an ISL.E、 The port channel protocol ensures that a set of ports is eligible to be part of the same SAN port channel.
单选题You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.A cross the channel as you are the stand-on vesselB cross only if the vessel in the channel is approaching on your port sideC not cross the channel if you might impede the other vesselD sound the danger signal
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？ （）AThe FTP server sends back an acknowledgment （ACK） to the clientBThe FTP server allocates a port touse for the data channel and transmit that port number to the clientCThe FTP server opens the data channel to the client using the port number indicated by the clientDThe FTP client opens the data channel to the FTP server on Port 20EThe FTP client opens the datachannel to the FTP server on Port 21
单选题After you enter Thimble Shoal Channel，you will alter course to pass between Trestle “A” and “B”. Which channel should you use?（）A Thimble Shoal Main Channel or the South Auxiliary ChannelB Any of the channels but keep to the right hand sideC The South Auxiliary ChannelD Thimble Shoal Main Channel
单选题Your vessel is crossing a narrow channel.A vessel to port is within the channel and crossing your course.She is showing a black cylinder.What is your responsibility?（）A hold your course and speedB sound the danger signalC begin an exchange of passing signalsD do not cross the channel if you might impede the other vessel
