A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?A.The motion of the apparent sun is along the eclipticB.Measurement of time is along the celestial equatorC.The speed of the Earth's re

题目

A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?

A.The motion of the apparent sun is along the ecliptic

B.Measurement of time is along the celestial equator

C.The speed of the Earth's revolution is not constant

D.There are variations in the Earth's rotational speed

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更多“A mean sun is used as the reference for solar time for three reasons. Which reason is NOT ”相关问题

  • 第1题：

    What does the man mean?

    A. He got there in only five minutes.

    B. He has a good reason for being late.

    C. He is used to waiting for the woman.


    正确答案：B

  • 第2题：

    The maximum difference between mean time and apparent time is ______.

    A.equal to the longitude expressed in time units

    B.about 16 minutes

    C.the difference between the GHA of mean sun and the first point of Aries

    D.15°of arc


    正确答案：B

  • 第3题：

    The reference datum used in determining the heights of land features on most charts is ______.

    A.mean sea level

    B.mean high water

    C.mean low water

    D.half-tide level


    正确答案：B

  • 第4题：

    Which three of the following are components of a syslog message? （）(Choose three.)

    • A、time stamp
    • B、error codes
    • C、severity level
    • D、log message name

    正确答案:A,C,D

  • 第5题：

    Which two statements are true regarding the use of NTP clock synchronization?（）

    • A、The Junos OS supports client, server, and symmetric modes of NTP operation.
    • B、Synchronized time on all network devices makes log messages more useful for troubleshooting.
    • C、Authentication methods are not supported.
    • D、The Junos OS must be used as the primary time reference.

    正确答案:A,B

  • 第6题：

    An administrator needs to configure a server to restrict mail traffic to an application server for security reasons.  Which of the following techniques can be used to manage this？（）

    • A、 PAT
    • B、 ACLs
    • C、 Subnet masking
    • D、 Port blocking

    正确答案:B

  • 第7题：

    In the customer’s environment， a group of five employees work within a room that has three PCs. The PCs have excellent hardware configurations， with considerable RAM and a fast CPU. The employees use these PCs only when they need to access an application， which is for a short duration of time. For the rest of the time， they work with their tools on their desks. Which IBM Tivoli Access Manager for Enterprise Single Sign-On session management configuration should be used for these three PCs for optimum performance？（）

    • A、Citrix workstation
    • B、personal workstation
    • C、shared workstation， private desktop
    • D、shared workstation， shared desktop

    正确答案:C

  • 第8题：

    单选题
    An administrator needs to configure a server to restrict mail traffic to an application server for security reasons.  Which of the following techniques can be used to manage this？（）
    A

     PAT

    B

     ACLs

    C

     Subnet masking

    D

     Port blocking


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    The maximum difference between mean time and apparent time is （）.
    A

    equal to the longitude expressed in time units

    B

    about 16 minutes

    C

    the difference between the GHA of mean sun and the first point of Aries

    D

    15°of arc


    正确答案： B
    解析： 暂无解析

  • 第10题：

    多选题
    Which three pieces of information are available from the Cisco CRS 4.0 Control Center?（）
    A

    System Parameters Configuration

    B

    Cisco Unified CallManager Cluster Status

    C

    Date, Time, and Reason of Last Failure

    D

    Cisco CRS License Information

    E

    Cisco CRS Datastore Replication Status

    F

    Cisco CRS Component Activation


    正确答案： E,C
    解析： 暂无解析

  • 第11题：

    单选题
    A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?（）
    A

    The motion of the apparent sun is along the ecliptic

    B

    Measurement of time is along the celestial equator

    C

    The speed of the Earth's revolution is not constant

    D

    There are variations in the Earth's rotational speed


    正确答案： C
    解析： 暂无解析

  • 第12题：

    多选题
    What are three functions of the Cisco wireless LAN controller，  which is being used in the Company  Centralized WLAN solution network？ （）
    A

    Authentication

    B

    Mobility

    C

    Security management

    D

    Transmission of beacon frames

    E

    Real-time portions of MAC management

    F

    Real-time aspects of the 802.11 prtocol management

    G

    SNMP collection


    正确答案： A,B,C
    解析： 暂无解析

  • 第13题：

    The height of a light is measured from which reference plane?

    A.Mean low water

    B.Mean high water

    C.Average water level

    D.Geographical sea level


    正确答案：B

  • 第14题：

    The datum from which the predicted heights of tides are reckoned in the tide tables is ______.

    A.mean low water

    B.the same as that used for the charts of the locality

    C.the highest possible level

    D.given in table three of the tide tables


    正确答案：B

  • 第15题：

    Which three fields are optional in an OSPFv3 external LSA？（）

    • A、Forwarding Address
    • B、External Route
    • C、Reference Link-State ID
    • D、Option
    • E、Prefix Options

    正确答案:A,B,C

  • 第16题：

    Which three pieces of information are available from the Cisco CRS 4.0 Control Center?（）

    • A、System Parameters Configuration  
    • B、Cisco Unified CallManager Cluster Status  
    • C、Date, Time, and Reason of Last Failure  
    • D、Cisco CRS License Information  
    • E、Cisco CRS Datastore Replication Status  
    • F、Cisco CRS Component Activation 

    正确答案:C,D,F

  • 第17题：

    What are three functions of the Cisco wireless LAN controller，  which is being used in the Company  Centralized WLAN solution network？ （）

    • A、 Authentication  
    • B、 Mobility
    • C、 Security management
    • D、 Transmission of beacon frames
    • E、 Real-time portions of MAC management
    • F、 Real-time aspects of the 802.11 prtocol management
    • G、 SNMP collection

    正确答案:A,B,C

  • 第18题：

    In addition to better overall price performance， which other factor most significantly contributes to a lower three-year TCO advantage for a pSeries customer than for a SUN customer？（）

    • A、Sharing commonly used peripherals
    • B、Maximum capacity of CPU， Memory and I/O
    • C、Minimum number of processors in a partition
    • D、Support for different versions of the operating system

    正确答案:C

  • 第19题：

    单选题
    According to the passage9 which of the following statements is NOT TRUE?
    A

    Solar panels are very expensive to install.

    B

    Sheridan Community Schools is completely solar-powered.

    C

    In 2014, fewer than l,000 schools used solar power in the US.

    D

    More and more schools are switching to solar power to cut costs.


    正确答案： D
    解析：

  • 第20题：

    多选题
    Which three contexts can be used as matching conditions in a source NAT configuration? （）(Choose three.)
    A

    routing-instance

    B

    zone

    C

    interface

    D

    policy

    E

    rule-set


    正确答案： E,C
    解析： 暂无解析

  • 第21题：

    多选题
    Which two statements are true regarding the use of NTP clock synchronization?（）
    A

    The Junos OS supports client, server, and symmetric modes of NTP operation.

    B

    Synchronized time on all network devices makes log messages more useful for troubleshooting.

    C

    Authentication methods are not supported.

    D

    The Junos OS must be used as the primary time reference.


    正确答案： B,A
    解析： 暂无解析

  • 第22题：

    多选题
    Which three options can be used with the load CLI command？（）
    A

    merge

    B

    replace

    C

    partial

    D

    complete

    E

    override


    正确答案： E,C
    解析： 暂无解析

  • 第23题：

    多选题
    Which three SONET network elements are used for troubleshooting?（）
    A

    line

    B

    path

    C

    circuit

    D

    section

    E

    segment


    正确答案： B,C
    解析： 暂无解析

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