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单选题
The “urgent” priority should be used for messages（）.
A
concerning the Safety of Life at Sea (SOLAS)
B
detailing important navigational warnings
C
containing information concerning the safety of a mobile unit or person
D
concerning on-scene communications
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单选题Which statement about transmitting distress messages by radiotelephone is INCORRECT?（）A
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All messages at the emerg priority level and above from all facilities, all messages at any priority level from the mail facility, and all messages at the crit priority level and above from the daemon facilities are sent to the remote host sysadmin. C
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This can be accomplished by creating two MX records.Then the mx record for -ex05 should be assigned a priority of 20.Thereafter the mx record for -ex06 should be assigned a priority of 10.B
This can be accomplished by creating two SRV records.Then the srv record for -ex05 should be assigned a priority of 20.Thereafter the srv record for -ex06 should be assigned a priority of 10.C
This can be accomplished by creating two MX records.Then the mx record for -ex05 should be assigned a priority of 10.Thereafter the mx record for -ex06 should be assigned a priority of 20.D
This can be accomplished by creating two SRV records.Then the srv record for -ex05 should be assigned a priority of 10.Thereafter the srv record for -ex06 should be assigned a priority of 20.
考题
单选题To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）A
The PRI field should contain the Cos value of 010B
The PRI field should contain the Cos value of 011C
The PRI field should contain the Cos value of 100D
The PRI field should contain the Cos value of 101E
The PRI field should contain the Cos value of 110F
The PRI field should contain the CoS value of 111
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单选题On a Juniper router， what is the default file used for syslog messages？（）A
systemB
errorsC
securityD
messages
考题
单选题The priority of EGC messages is classified by（）.A
distress, urgent and safetyB
safety and routineC
urgent, safety and routineD
distress, urgent, safety and routine
考题
单选题Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）A
If no answer is received on the designated distress frequencies，repeat the distress call on any frequency availableB
Channel 16 (156.8) may be used for distress messagesC
It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds durationD
Distress messages should first be transmitted on 2182 kHz
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多选题Which statement describes the significance of the CHANGE FAILURE command in RMAN？（）AIt is used to change failure priority only for HIGH or LOW priorities.BIt is used to execute the advised repair script.CIt is used to change failure priority only for the CRITICAL priority.DIt is used to explicitly close the open failures.EIt is used to inform the database about the repair after the repair script executes.
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多选题Which two statements about SA caching are true？（）ACaching allows pacing of MSDP messages.BCaching reduces join latency.CCaching should not be done by an MSDP speaker.DCaching is used to update the BGP MDT address family.
考题
单选题The “urgent” priority should be used for messages（）.A
concerning the Safety of Life at Sea (SOLAS)B
detailing important navigational warningsC
containing information concerning the safety of a mobile unit or personD
concerning on-scene communications
考题
单选题The radiotelegraph alarm signal may be used to announce（）.A
that a distress message will followB
a request for assistance in searching for a man overboardC
an urgent warning about a cycloneD
All of the above
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