违法和不良信息举报 联系客服
免费注册 登录

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 

题目
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

如果没有搜索结果或未解决您的问题，请直接 联系老师 获取答案。
相似问题和答案

第1题：

To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?()

A. prioritization

B. classification

C. fragmentation

D. traffic shaping


参考答案：D

第2题：

ATM carries IP and PPP information with ATM cells. What ATM adaptation Layer is used when an ATMcell carries IP packets and PPP frames？（）

  • A、AAU2
  • B、AAL3
  • C、AAL4
  • D、AAL5

正确答案:D

第3题：

What information is used by a switch to forward an Ethernet frame to its destination?()

A. IP address

B. destination MAC address

C. ARP table entry

D. FCS checksum


参考答案：B

第4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、It is used to identify the network to which an IP address belongs
  • D、It is used to identify the total number of bits present in an IP address

正确答案:C

第5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 profiles
  • B、 Can only be used on the fabric interconnect on which it was created
  • C、 Can be used to migrate from a 6120 to 6140 and retain system IP addresses and cluster information
  • D、 Can be used to match firmware versions between 6120 and 6140 during a migration

正确答案:A

第6题：

What frame type is used to signal TSPEC reservation from a client?（）

  • A、RSVP
  • B、ADDTS
  • C、802.11 association information elements
  • D、WMM capabilities exchange

正确答案:B

第7题：

To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）

  • A、 prioritization
  • B、 classification
  • C、 fragmentation
  • D、 traffic shaping

正确答案:D

第8题：

Which statements are true regarding ISDN channels?()

A. Each B channel can transmit up to 64 kbps

B. The ISDN B channel carries voice or data

C. 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.


参考答案：A, B, C

第9题：

What does the protocol field inside the PPP frame indicate？（）

  • A、the protocol used to determine the authentication method
  • B、the protocol used to identify the data in the Information field
  • C、the protocol used to carry the PPP frame
  • D、the protocol used to decode the FCS field
  • E、the protocol used to detect the number of padding bytes

正确答案:B

第10题：

What information is used by a switch to forward an Ethernet frame to its destination?（）

  • A、IP address
  • B、destination MAC address
  • C、ARP table entry
  • D、FCS checksum

正确答案:B

更多相关问题
相关内容