多选题Which four are true？（）AHas-a relationships should never be encapsulated.BHas-a relationships should be implemented using inheritance.CHas-a relationships can be implemented using instance variables.DIs-a relationships can be implemented using the exten

题目
多选题
Which four are true？（）
A

Has-a relationships should never be encapsulated.

B

Has-a relationships should be implemented using inheritance.

C

Has-a relationships can be implemented using instance variables.

D

Is-a relationships can be implemented using the extends keyword.

E

Is-a relationships can be implemented using the implements keyword.

F

An array or a collection can be used to implement a one-to-many has-a relationship.

G

The relationship between Movie and Actress is an example of an is-a relationship.

相似考题

1.Which new idea do you think may come true? ________________________________________

2.Which of the following RAID arrays should be used to achieve the BEST fault tolerance?()A. Four drives with RAID 0B. Four drives with RAID 3C. Four drives with RAID 5D. Four drives with RAID 10

3.Which of the following is true regarding Label Distribution Protocol （LDP）？（）A、It is a label distribution protocol for MPLSB、It is a set of procedures and messages by which LSRs establish Label Switch Paths （LSPs） through a networkC、Tag distribution Protocol （TDP） was the basis for LDPD、All of the above are true

4.Which of the following statements is TRUE?A. Every businessman possesses these four skills.B. When a striver stops his devotion to work，he will feel quite at ease.C. These basic skills are not instinctual at all.D. Mother's education has undoubted effect on her child's success.

参考答案和解析
正确答案： E,B
解析： 暂无解析
更多“Which four are true？（）”相关问题

  • 第1题：

    A recently ordered server came standard with one 3.0GHz processor. It is capable of handling fourtotal processors. Which of the following processor combinations can be used in this server？（）

    • A、 One， two， three or four processors
    • B、 One， two， or three processors
    • C、 One， three， or four processors
    • D、 One， two or four processors

    正确答案:D

  • 第2题：

    Which of the following RAID arrays should be used to achieve the BEST fault tolerance？（）

    • A、Four drives with RAID 0
    • B、Four drives with RAID 3
    • C、Four drives with RAID 5
    • D、Four drives with RAID 10

    正确答案:D

  • 第3题：

    多选题
    Consider each of the choices separately and select all that apply.　 If a father of four children carries the Huntington’s mutation, which of these is true?
    A

    Two of the four children may inherit the mutation.

    B

    Two of the four children may have the disease.

    C

    Two of the four children may end up disease free.


    正确答案： A,C
    解析：
    根据“If one parent carries the mutation, each offspring has a 50-50 chance of inheriting the mutated gene”可知，本题选A、B、C三项。

  • 第4题：

    单选题
    Which statement about the hospital space on a cargo ship is TRUE（）.
    A

    The hospital may be used for disciplinary confinement if it is not being used for treatment

    B

    The hospital space must have both a bathtub and shower

    C

    A hospital is required on all vessels with a crew of 12 or more if it makes overnight voyages

    D

    If a ship has a crew of forty-five who do not have their own room，the hospital must have four berths


    正确答案： D
    解析： 暂无解析

  • 第5题：

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

    This pipeline will cross four states.

    B

    This pipeline is l,172 miles long.

    C

    All the protesters are from the Standing Rock Sioux. D Neither side of the dispute is willing to compromise.


    正确答案： C
    解析：

  • 第6题：

    单选题
    According to the passage, which of the following is TRUE?
    A

    Freedman and his colleagues hired 400,000 Americans to collect data.

    B

    About four hundred thousand Americans worked for Freedman's team full time for 13 years.

    C

    People who took part in Freedman's research are about 50 to 70 years old.

    D

    People who are 50 to 70 years old seldom drink coffee


    正确答案： B
    解析：

  • 第7题：

    多选题
    Which four are types of functions available in SQL? （）
    A

    string

    B

    character

    C

    integer

    D

    calendar

    E

    numeric

    F

    translation

    G

    date

    H

    conversion


    正确答案： H,G
    解析： 暂无解析

  • 第8题：

    问答题
    four switches， which one will be root switch.（no pic）.

    正确答案： lowest bridge ID
    解析： 暂无解析

  • 第9题：

    多选题
    Option 10A （back-to-back VRF） is an implementation of inter-AS MPLS VPN. Which of four statementsabout option 10A are not true？（）
    A

    MPLS is required between the ASBRs.

    B

    ASBR must hold all routing information.

    C

    It is a scalable solution.

    D

    It is a simple solution.

    E

    MP-EBGP is used to exchange routes between ASBRs.


    正确答案： D,E
    解析： 暂无解析

  • 第10题：

    多选题
    Which four types of objects can be thrown using the throw statement？（）
    A

    Error

    B

    Event

    C

    Object

    D

    Exception

    E

    Throwable

    F

    RuntimeException


    正确答案： F,D
    解析： 暂无解析

  • 第11题：

    four switches， which one will be root switch.（no pic）.


    正确答案:lowest bridge ID

  • 第12题：

    A user has a small network of four computers that they want to connect to a single cable modem. Which of the following devices would allow the user to do this？（）

    • A、Four port switch
    • B、Four port wireless router
    • C、Four port WAP
    • D、Four port hub

    正确答案:B

  • 第13题：

    多选题
    Which four of these are MPLS label header fields？ （）
    A

    Label

    B

    VPI VCI

    C

    EXP

    D

    TTL

    E

    FCS

    F

    S flag


    正确答案： C,A
    解析： 暂无解析

  • 第14题：

    单选题
    Which of the following statements is true regarding the installation of piston rings on two-stroke/cycle, diesel engines as compared to four-stroke/cycle, diesel engines?（）
    A

    In a two-stroke/cycle engine, the rings run hotter, requiring the end gap to be greater

    B

    Some provision must be made in a two-stroke/cycle engine to keep the rings from binding in the ports

    C

    No gap is required to exist between the ends of the ring when cold in a two-stroke/cycle engine, but a small gap is required in a four-stoke/cycle engine

    D

    The gaps should be staggered on either side of a piston in a two-stroke/cycle engine, while staggering is not necessary in a four-stroke/cycle engine


    正确答案： A
    解析： 暂无解析

  • 第15题：

    多选题
    Which two statements are true with respect to the maintenance window？（） .
    A

    A DBA can enable or disable an individual task in all maintenance windows.

    B

    A DBA cannot change the duration of the maintenance window after it is created.

    C

    In case of a long maintenance window，all Automated Maintenance Tasks are restarted every four hours.

    D

    A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window


    正确答案： C,B
    解析： 暂无解析

  • 第16题：

    多选题
    Which four types of object can be thrown using the throw statement？（）
    A

    Error

    B

    Event

    C

    Object

    D

    Exception

    E

    Throwable

    F

    Runtime Exception


    正确答案： E,A
    解析： 暂无解析

  • 第17题：

    单选题
    Which of the following about the New Jersey study is TRUE?
    A

    There is no evidence to support the New Jersey study.

    B

    New Jersey has created a new Head Start to help disadvantaged kids.

    C

    Sending children to school at the age of four is not going to help.

    D

    Two years of pre-kindergarten were better than one.


    正确答案： D
    解析：

  • 第18题：

    多选题
    Which four statements about NetFlow are true？（）
    A

    NetFlow records bidirectional IP traffic flow.

    B

    NetFlow export can be implemented over IPv4.

    C

    NetFlow export can be implemented over IPv6.

    D

    NetFlow records multicast IP traffic flow.

    E

    NetFlow records ingress traffic.

    F

    NetFlow records egress traffic.


    正确答案： B,C
    解析： 暂无解析

  • 第19题：

    多选题
    Which four are true regarding the Workspace Manager in Oracle9i？ （）
    A

    Automatically versions all tables.

    B

    Automatically installed with Oracle9i.

    C

    Merges changes with parent rows or discard changes.

    D

    Provides mechanism to identify and resolve conflicts.

    E

    Allows for version enabling tables by use of a packages procedure.


    正确答案： A,E
    解析： 暂无解析

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