What is the difference between a CSU／DSU and a modem?()A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.B. A CSU/DSU converts analog signals from a router to a phone line;

题目
What is the difference between a CSU／DSU and a modem?()

A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.

B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.

C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.

D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.

相似考题

1.The real difference between plants and animals ____ what they do, and not in what they seem to be.A: lies inB: lies withC: lies downD: lies up

2.WhichofthefollowingdevicessetstheframingtypeonaT1circuit?()A.TransceiverB.GatewayModemC.RouterD.CSU/DSU

3.Which of the following describes the roles of devices in a WAN? ()A.A CSU/DSU terminates a digital local loopB.A modem terminates a digital local loopC.A CSU/DSU terminates an analog local loopD.A modem terminates an analog local loopE.A router is commonly considered a DTE deviceF.A router is commonly considered a DCE device

4.As a network administrator, you will need to decide on the appropriate network devices to use. Which of the following correctly describes the roles of devices in a WAN? (Choose three)A. A CSU/DSU terminates a digital local loop.B. A router is commonly considered a DCE device.C. A modem terminates an analog local loop.D. A router is commonly considered a DTE device.E. A modem terminates a digital local loop.F. A CSU/DSU terminates an analog local loop.G. A modem is used to terminate a T1

更多“What is the difference between a CSU／DSU and a modem?() ”相关问题

  • 第1题：

    CSU/DSU属于（ ）设备。




    A. DTE
    B. DCE
    C. CO
    D. CPE

    答案：B
    解析：
    CSU/DSU是用于连接终端和数字专线的设备，它属于DCE。通常CSU/DSU被整合成单一的硬件设备，集成在路由器的同步串口上。

  • 第2题：

    Which of the following describes the roles of devices in a WAN?（）

    • A、A CSU/DSU terminates a digital local loop
    • B、A modem terminates a digital local loop
    • C、A CSU/DSU terminates an analog local loop
    • D、A modem terminates an analog local loop
    • E、A router is commonly consideredaDTEdevice
    • F、A router is commonly considereda DCE device

    正确答案:A,D,E

  • 第3题：

    What does the command show | compare rollback 1 display?（）

    • A、the difference between the current candidate configuration and the candidate configuration from one commit ago
    • B、the difference etween the current active configuration and the active configuration from the one commit ago
    • C、the difference between the current active configuration and the active configuration from one commit ago
    • D、the difference between the current candidate configuration and the archived configuration from one commit ago

    正确答案:D

  • 第4题：

    Which of the following describes the roles of devices in a WAN? （）

    • A、A CSU/DSU terminates a digital local loop
    • B、A modem terminates a digital local loop
    • C、A CSU/DSU terminates an analog local loop
    • D、A modem terminates an analog local loop
    • E、A router is commonly considered a DTE device
    • F、A router is commonly considered a DCE device

    正确答案:A,D,E

  • 第5题：

    What is the difference between a CSU/DSU and a modem?（）

    • A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
    • B、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
    • C、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
    • D、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.

    正确答案:D

  • 第6题：

    What is difference between OSPF neighbor and adjacencies？


    正确答案: Neighbor：
    A neighbor is another OSPF router that is attached to the local router’s directly connected links， and ospf hello packet sended by the router have consistance parameter （such as hello time，dead time，area ID， mask and so on） with each other.
    Adjacency：
    An OSPF adjacency is a conceptual link to a neighbor over which LSAs can be sent.

  • 第7题：

    单选题
    What does the command show | compare rollback 1 display?（）
    A

    the difference between the current candidate configuration and the candidate configuration from one commit ago

    B

    the difference between the current active configuration and the current candidate configuration

    C

    the difference between the current active configuration and the active configuration from one commit ago

    D

    the difference between the current candidate configuration and the archived configuration from one commit ago


    正确答案： C
    解析： 暂无解析

  • 第8题：

    问答题
    What’s the difference between “postal worker” and “postman” according to the passage?

    正确答案： The former is formal, the latter is informal.
    解析：
    事实细节题。根据第四段“You would be quite likely to read in the paper that ‘Postal workers are to receive a pay increase’ But ‘Has the postman been?’ would be most likely to be heard in informal conversation.”可以得出结论，postal worker是正式的书面用法，而postman则是非正式的口语用法。

  • 第9题：

    问答题
    What is difference between OSPF neighbor and adjacencies？

    正确答案： Neighbor：
    A neighbor is another OSPF router that is attached to the local router’s directly connected links， and ospf hello packet sended by the router have consistance parameter （such as hello time，dead time，area ID， mask and so on） with each other.
    Adjacency：
    An OSPF adjacency is a conceptual link to a neighbor over which LSAs can be sent.
    解析： 暂无解析

  • 第10题：

    多选题
    Which of the following describes the roles of devices in a WAN?（）
    A

    A CSU/DSU terminates a digital local loop

    B

    A modem terminates a digital local loop

    C

    A CSU/DSU terminates an analog local loop

    D

    A modem terminates an analog local loop

    E

    A router is commonly consideredaDTEdevice

    F

    A router is commonly considereda DCE device


    正确答案： A,D,E
    解析： 暂无解析

  • 第11题：

    问答题
    What’s the difference between casual listening and focused listening?

    正确答案： If we listen with no particular purpose in mind, and often without much concentration, the kind of listening is called casual listening. Usually we do not listen very closely, unless we hear something that particularly interests us, and afterwards we may not remember much of what we heard. However if we listen for a particular purpose, to find information we need to know, the kind of listening is called focused listening. In these situations we listen much more closely; but we do not listen to everything we hear with equal concentration—we listen for the most important points or for particular information. Usually we know beforehand what we are listening for.
    解析： 暂无解析

  • 第12题：

    多选题
    Which of the following describes the roles of devices in a WAN?（）
    A

    A CSU/DSU terminates a digital local loop

    B

    A modem terminates a digital local loop

    C

    A CSU/DSU terminates an analog local loop

    D

    A modem terminates an analog local loop

    E

    A router is commonly considered a DTE device

    F

    A router is commonly considered a DCE device


    正确答案： A,C
    解析： 暂无解析

  • 第13题：

    what is the difference between the HSRP and VRRP？


    正确答案: （1）VRRP is an IEEE standard （RFC 2338） for router redundancy； HSRP is a Cisco proprietary protocol.
    （2）VRRP allows actual router IP address to be the same with the virtual IP，and if the same the router which get the IP will become Master router of the VRRP group；HSRP do not allow actual router IP address to be the same with the virtual IP.
    （3）HSRP uses the multicast address 224.0.0.2 which represent all router in the subnet ， while VRRP uses the multicast address 224.0.0.18；HSRP uses UDP port 1985 while VRRP uses a protocol number of 112.
    （4）HSRP may have one active router，one standby router，multiple listening router.While VRRP may have one master router，multiple backup router.
    （5）HSRP exchange three kinds of message， hello message，coup message ，resign message. VRRP exchange only one kind of message， advertisement message.
    （6）In VRRP，preempt is enable by default.But in HSRP preemt is disable by default.

  • 第14题：

    路由器出现Serial interface-number is up，line protocol is down（DTE）的状态，可能出现的问题不包括（）。

    • A、本地或远程路由器配置丢失
    • B、线路故障
    • C、CSU/DSU故障
    • D、LINE未与CSU/DSU联接

    正确答案:D

  • 第15题：

    Which of the following describes the roles of devices in a WAN (Choose three.)（）。

    • A、A CSU/DSU terminates a digital local loop.
    • B、A modem terminates a digital local loop.
    • C、A CSU/DSU terminates an analog local loop.
    • D、A modem terminates an analog local loop.
    • E、A router is commonly considered a DTE device.
    • F、A router is commonly considered a DCE device.

    正确答案:A,D,E

  • 第16题：

    What is the difference between a CSU/DSU and a modem?（）

    • A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line
    • B、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line
    • C、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line
    • D、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line

    正确答案:D

  • 第17题：

    Which of the following describes the roles of devices in a WAN?（）

    • A、A CSU/DSU terminates a digital local loop.
    • B、A modem terminates a digital local loop.
    • C、A CSU/DSU terminates an analog local loop.
    • D、A modem terminates an analog local loop.
    • E、A router is commonly considered a DTE device.
    • F、A router is commonly considered a DCE device.

    正确答案:A,D,E

  • 第18题：

    What does the command show | compare rollback 1 display?（）

    • A、the difference between the current candidate configuration and the candidate configuration from one commit ago
    • B、the difference between the current active configuration and the current candidate configuration
    • C、the difference between the current active configuration and the active configuration from one commit ago
    • D、the difference between the current candidate configuration and the archived configuration from one commit ago

    正确答案:D

  • 第19题：

    多选题
    Which of the following describes the roles of devices in a WAN? (Choose three.)（）
    A

    A CSU/DSU terminates a digital local loop.

    B

    A modem terminates a digital local loop.

    C

    A CSU/DSU terminates an analog local loop.

    D

    A modem terminates an analog local loop.

    E

    A router is commonly considered a DTE device.

    F

    A router is commonly considered a DCE device.


    正确答案： F,E
    解析： 暂无解析

  • 第20题：

    单选题
    What is the difference between a CSU/DSU and a modem?（）
    A

    A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line

    B

    A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line

    C

    A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line

    D

    A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line


    正确答案： C
    解析： 暂无解析

  • 第21题：

    问答题
    what is the difference between the HSRP and VRRP？

    正确答案： （1）VRRP is an IEEE standard （RFC 2338） for router redundancy； HSRP is a Cisco proprietary protocol.
    （2）VRRP allows actual router IP address to be the same with the virtual IP，and if the same the router which get the IP will become Master router of the VRRP group；HSRP do not allow actual router IP address to be the same with the virtual IP.
    （3）HSRP uses the multicast address 224.0.0.2 which represent all router in the subnet ， while VRRP uses the multicast address 224.0.0.18；HSRP uses UDP port 1985 while VRRP uses a protocol number of 112.
    （4）HSRP may have one active router，one standby router，multiple listening router.While VRRP may have one master router，multiple backup router.
    （5）HSRP exchange three kinds of message， hello message，coup message ，resign message. VRRP exchange only one kind of message， advertisement message.
    （6）In VRRP，preempt is enable by default.But in HSRP preemt is disable by default.
    解析： 暂无解析

  • 第22题：

    单选题
    What is the difference between a CSU/DSU and a modem？（）
    A

    A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.

    B

    A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.

    C

    A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.

    D

    A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    What's the（）difference between the two parties?
    A

    essential

    B

    necessary

    C

    dominant

    D

    great


    正确答案： C
    解析： 暂无解析

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