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单选题
What is the function of the AJB bits on DS1 using Extended Super Frame （ESF）？（）
A
It is used for signaling on-hook and off-hook status
B
It carries CRC information for error detection
C
It is used for a control and performance information
D
It is used for a frame’s synchronization and alignment
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更多 “单选题What is the function of the AJB bits on DS1 using Extended Super Frame （ESF）？（）A It is used for signaling on-hook and off-hook statusB It carries CRC information for error detectionC It is used for a control and performance informationD It is used for a frame’s synchronization and alignment” 相关考题
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What does the protocol field inside the PPP frame indicate？（）A、the protocol used to determine the authentication methodB、the protocol used to identify the data in the Information fieldC、the protocol used to carry the PPP frameD、the protocol used to decode the FCS fieldE、the protocol used to detect the number of padding bytes
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Which statements are true regarding ISDN channels?（）A、Each B channel can transmit up to 64 kbpsB、The ISDN B channel carries voice or dataC、The ISDN D channel transmits control information.D、The D channel transmission rate varies depending on the service used.E、HDLC or PPP can be used to encapsulate D channel information.
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单选题What frame type is used to signal TSPEC reservation from a client?（）A
RSVPB
ADDTSC
802.11 association information elementsD
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LCP is used for PPP CHAP authentication.C
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单选题What is the use of an "all configuration" backup in Cisco UCS？（）A
Can be used to migrate from a 6120 to a 6140 and retain the same service profilesB
Can only be used on the fabric interconnect on which it was createdC
Can be used to migrate from a 6120 to 6140 and retain system IP addresses and cluster informationD
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prioritizationB
classificationC
fragmentationD
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考题
单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetwork.B
It is used to identify an IP address as either private or public.C
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考题
多选题Which statements are true regarding ISDN channels?（）AEach B channel can transmit up to 64 kbpsBThe ISDN B channel carries voice or dataCThe ISDN D channel transmits control information.DThe D channel transmission rate varies depending on the service used.EHDLC or PPP can be used to encapsulate D channel information.
考题
单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetworkB
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FCS checksum
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AAU2B
AAL3C
AAL4D
AAL5
考题
单选题What does the protocol field inside the PPP frame indicate？（）A
the protocol used to determine the authentication methodB
the protocol used to identify the data in the Information fieldC
the protocol used to carry the PPP frameD
the protocol used to decode the FCS fieldE
the protocol used to detect the number of padding bytes
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