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单选题Which of the following does an astronomical time clock do？（）A Determines the ambient light at night with a photocell.B Calculates sunset and sunrise times based on geographical area.C Determines the start and end of each of the seasons.D Synchronizes t

题目
单选题
Which of the following does an astronomical time clock do？（）
A

Determines the ambient light at night with a photocell.

B

Calculates sunset and sunrise times based on geographical area.

C

Determines the start and end of each of the seasons.

D

Synchronizes the local time displayed with the official world time.

相似考题

1.Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is(71) . It determines how the various results are computed by the product and presents this information in the form. of a(72) and associated scenarios. The second is(73) , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is(74) , which determines the actions performed by or to each class or subclass and presents this information in the form. of (75) .A．static modelingB．dynamic modelingC．use-case modelingD．behavioral modeling

2.What protection method is used in 4F BLSR networks?()A. Each fiber has half of its SONET capacity reserved for protection.B. Two fibers in the span carry working traffic, while the other two fibers in the span are reserved for protection.C. The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.D. The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.

3.Which of the following statements regarding routed and routing protocols are true?()A. A routed protocol is assigned to an interface and determines the method of packet deliver.B. A routing protocol determines the path of a packet through a network.C. A routed protocol determines the path of a packet through a network.D. A routing protocol operates at the transport layer of the OSI model.E. A routed protocol updates the routing table of a router.

4.By default, which of the following factors determines the spanning-tree path cost?A．It is the individual link cost based on latencyB．It is the sum of the costs based on bandwidthC．It is the total hop countD．It is dynamically determined based on loadE．None of the above

更多“单选题Which of the following does an astronomical time clock do？（）A Determines the ambient light at night with a photocell.B Calculates sunset and sunrise times based on geographical area.C Determines the start and end of each of the seasons.D Synchronizes t”相关问题

  • 第1题：

    Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?()

    A. A routing protocol is assigned to an interface and determines the method of packet delivery.

    B. A routed protocol is assigned to an interface and determines the method of packet delivery.

    C. A routing protocol determines the path of a packet through a network.

    D. A routed protocol determines the path of a packet through a network.

    E. A routing protocol operates at the transport layer of the OSI model.

    F. A routed protocol updates the routing table of a router.


    参考答案：B, C

  • 第2题：

    According to the Rules, when should lights be displayed?______.

    A.During the hours of darkness

    B.At all times when underway

    C.From sunset to sunrise and restricted visibility

    D.Sunrise to sunset


    正确答案：C
    根据规则，号灯应在什么时候被显示？从日落到日出和能见度受限时

  • 第3题：

    By default, which of the following factors determines the spanning-tree path cost?（）

    • A、It is the individual link cost based on latency
    • B、It is the sum of the costs based on bandwidth
    • C、It is the total hop count
    • D、It is dynamically determined based on load

    正确答案:B

  • 第4题：

    Which of the following does an astronomical time clock do？（）

    • A、Determines the ambient light at night with a photocell.
    • B、Calculates sunset and sunrise times based on geographical area.
    • C、Determines the start and end of each of the seasons.
    • D、Synchronizes the local time displayed with the official world time.

    正确答案:B

  • 第5题：

    Which of the following routing protocols runs over UDP and determines path based upon distancevectors?（）

    • A、RIP
    • B、DSI
    • C、BGP
    • D、IS-IS

    正确答案:A

  • 第6题：

    单选题
    A user reports sporadic connectivity with their wireless connection. A technician determines the wireless speed reported by the laptop to be 1Mbps. Which of the following is the MOST likely cause of this issue?（）
    A

    The client does not support 802.11n

    B

    Incorrect frequency on the client is being used

    C

    Incorrect encryption on the AP

    D

    The client distance from the AP


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Which of the following does an astronomical time clock do？（）
    A

    Determines the ambient light at night with a photocell.

    B

    Calculates sunset and sunrise times based on geographical area.

    C

    Determines the start and end of each of the seasons.

    D

    Synchronizes the local time displayed with the official world time.


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following routing protocols runs over UDP and determines path based upon distancevectors?（）
    A

    RIP

    B

    DSI

    C

    BGP

    D

    IS-IS


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following determines if the alarm should sound or an entry delay should start？（）
    A

    The sensor itself

    B

    The way the zones are wired

    C

    The zone type

    D

    The digital dialer


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    By default, which of the following factors determines the spanning-tree path cost?（）
    A

    It is the individual link cost based on latency

    B

    It is the sum of the costs based on bandwidth

    C

    It is the total hop count

    D

    It is dynamically determined based on load


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    All of the following are practices of good seamanship EXCEPT（）.
    A

    When meeting，altering course to the left to increase sea room

    B

    Maintaining an alert radar watch in reduced visibility

    C

    Showing a flare-up light to attract attention when you are not under command

    D

    Maintaining a proper lookout from sunrise to sunset


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following server roles synchronizes time throughout the network？（）
    A

    DNS

    B

    NTP

    C

    DHCP

    D

    SMTP


    正确答案： B
    解析： 暂无解析

  • 第13题：

    The main factor which determines the output of each cylinder is _____.

    A.the cylinder weight

    B.the cylinder bore

    C.the cylinder length

    D.the cylinder cover


    正确答案：B

  • 第14题：

    Which of the following determines if the alarm should sound or an entry delay should start？（）

    • A、The sensor itself
    • B、The way the zones are wired
    • C、The zone type
    • D、The digital dialer

    正确答案:C

  • 第15题：

    What protection method is used in 4F MS-SPRing networks？（）

    • A、 Each fiber has half of its capacity reserved for protection.
    • B、 Two fibers carry their full capacities while the other two fibers are reserved for protection.
    • C、 The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.
    • D、 The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.

    正确答案:B

  • 第16题：

    Which of the following server roles synchronizes time throughout the network？（）

    • A、DNS
    • B、NTP
    • C、DHCP
    • D、SMTP

    正确答案:B

  • 第17题：

    A user reports sporadic connectivity with their wireless connection. A technician determines the wireless speed reported by the laptop to be 1Mbps. Which of the following is the MOST likely cause of this issue?（）

    • A、The client does not support 802.11n
    • B、Incorrect frequency on the client is being used
    • C、Incorrect encryption on the AP
    • D、The client distance from the AP

    正确答案:D

  • 第18题：

    单选题
    According to the Rules，when should lights be displayed?（）.
    A

    During the hours of darkness

    B

    At all times when underway

    C

    From sunset to sunrise and restricted visibility

    D

    Sunrise to sunset


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    A vessel being pushed ahead is required to carry which of the following lights?（）.
    A

    Sidelights and a stern light

    B

    Sidelights only

    C

    Sidelights and a small white light at each end

    D

    A small white light at each end


    正确答案： C
    解析： 暂无解析

  • 第20题：

    多选题
    Which of the following statements regarding routed and routing protocols are true?（）
    A

    A routed protocol is assigned to an interface and determines the method of packet deliver.

    B

    A routing protocol determines the path of a packet through a network.

    C

    A routed protocol determines the path of a packet through a network.

    D

    A routing protocol operates at the transport layer of the OSI model.

    E

    A routed protocol updates the routing table of a router.


    正确答案： E,A
    解析： 暂无解析

  • 第21题：

    单选题
    Users are unable to stay connected to the company's wireless network. Several times throughout the day the users' signals are dropped and they are forced to reconnect to the network. A technician determines the network cabling that supplies the WAP has been run inside with several power lines. Which of the following is the MOST likely cause of the network issue?（）
    A

    Ashort

    B

    Open pairs

    C

    ESD

    D

    EMI


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    What protection method is used in 4F MS-SPRing networks？（）
    A

     Each fiber has half of its capacity reserved for protection.

    B

     Two fibers carry their full capacities while the other two fibers are reserved for protection.

    C

     The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.

    D

     The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    The main factor which determines the output of each cylinder is （）
    A

    the cylinder weight

    B

    the cylinder bore

    C

    the cylinder length

    D

    the cylinder cover


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    VLAN maps have been configured on switch R1.  Which of the following actions are taken in a  VLAN map that does not contain a match clause？  （）
    A

     Implicit deny feature at end of list.

    B

     Implicit deny feature at start of list.

    C

     Implicit forward feature at end of list

    D

     Implicit forward feature at start of list.


    正确答案： B
    解析： 暂无解析

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