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更多“For which set of numbers do the average, median, and mode al”相关问题
  • 第1题:

    图1中交换机同属一个VTP域。除交换机B外,所有交换机的VLAN配置都与交换机A相同。交换机A和B的VTP工作模式的正确配置是______。

    A) set vtp mode transparent和set vtp mode server

    B) set vtp mode server和set vtp mode transparent

    C) set vtp mode server和set vtp mode client

    D) set vtp mode server和set vtp mode server

    A.

    B.

    C.

    D.


    正确答案:B

  • 第2题:

    When configuring private VLANs, which configuration task must you do first?()

    • A、Configure the private VLAN port parameters.
    • B、Configure and map the secondary VLAN to the primary VLAN.
    • C、Disable IGMP snooping.
    • D、Set the VTP mode to transparent.

    正确答案:D

  • 第3题:

    Which two statements describe the behavior of the server's SQL mode?()

    • A、The server's SQL mode determines how the server should behave when performing data validation check and interpreting different forms of syntax
    • B、The server's SQL mode determines whether the server should be read-only or should accept commands such as INSERT and UPDATE
    • C、The server's SQL mode can be changed at the session level with a SET SESSION sql_mode="new_value" command
    • D、The server's SQL mode, when globally set on a slave server, applies to events sent from the master

    正确答案:A,C

  • 第4题:

    You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation? ()

    • A、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode ON
    • B、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode to OFF
    • C、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode asauto.
    • D、The firewall does not support DTP. You should set the switchport trunk mode to ON

    正确答案:D

  • 第5题:

    An AIX system, which is running a database, is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes, which will optimize the system for best performance.  To set these numbers, which of the following commands would be used?()

    • A、 perfmon -h 30 -l 25
    • B、 chdev
    • C、 no -o
    • D、 smit chgsys

    正确答案:D

  • 第6题:

    Which three actions are required to configure the Flashback Database?()  

    • A、 set Flash Recovery Area
    • B、 enable Flashback logging
    • C、 create FLASHBACK tablespace
    • D、 start the database in the ARCHIVELOG mode
    • E、 start the database in the NOARCHIVELOG mode

    正确答案:A,B,D

  • 第7题:

    单选题
    An AIX system, which is running a database, is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes, which will optimize the system for best performance.  To set these numbers, which of the following commands would be used?()
    A

     perfmon -h 30 -l 25

    B

     chdev

    C

     no -o

    D

     smit chgsys


    正确答案: C
    解析: 暂无解析

  • 第8题:

    多选题
    Which two statements describe the behavior of the server's SQL mode?()
    A

    The server's SQL mode determines how the server should behave when performing data validation check and interpreting different forms of syntax

    B

    The server's SQL mode determines whether the server should be read-only or should accept commands such as INSERT and UPDATE

    C

    The server's SQL mode can be changed at the session level with a SET SESSION sql_mode=new_value command

    D

    The server's SQL mode, when globally set on a slave server, applies to events sent from the master


    正确答案: A,D
    解析: 暂无解析

  • 第9题:

    单选题
    Companycom has seven days of vmstat data on four p5 590 production LPARs of four processors each. The data shows that all four LPARs have periodic utilizations of 90-95% lasting several minutes in duration. However, the average utilizations of the four LPARs were between 15-30%. The vmstat data shows that the peak utilizations of each LPAR do not occur at the same time. Which of the following should be set up?()
    A

    A shared pool with four capped LPARs

    B

    A shared pool with four uncapped LPARs

    C

    Four dedicated LPARs and use DLPAR to manage resources effectively

    D

    The server in SMP mode and use WLM to manage resources effectively


    正确答案: B
    解析: 暂无解析

  • 第10题:

    问答题
    A set dominoes(多米诺) consists of rectangular (矩形的) tiles each carrying two numbers from 0 to 6 which represented by patterns of spots. Every possible pairing of numbers occurs just once including each number with itself.  How many dominoes are there in a set?

    正确答案: 28
    解析:
    该题是一个排列组合题,从0至6共7个数字任意选出两个数字,共有21种组合,除此之外,每个数字还可以跟自己组合,共有7种组合,加在一起共28种组合。

  • 第11题:

    多选题
    You need to determine the correct wireless LAN topology for use in the Company network.  Which  three statements are true about the various WLAN topologies?()
    A

    In ad hoc mode, the Independent Basic Service Set (IBSS) is a framework in which mobile  clients connect directly without an intermediate access point.

    B

    In Infrastructure mode, the Basic Service Set (BSS) is a framework in which mobile clients use  a single access point for connecting to each other or to wired network resources.

    C

    In Infrastructure mode, the Extended Services Set (ESS) is a framework in which two or more  Basic Service Sets are connected by a common distribution system (DS).

    D

    In Infrastructure mode, the Independent Basic Service Setet (IBSS) is a framework in which  mobile clients connect directly without an intermediate access point.

    E

    In ad hoc mode, the Basic Service Set (BSS) is a framework in which mobile clients use a  single AP for connecting to each other or to wired network resources.

    F

    In ad hoc mode, the Extended Services Set (ESS) is a framework in which two or more Basic  Service Sets are connected by a common distribution system (DS)


    正确答案: F,E
    解析: 暂无解析

  • 第12题:

    单选题
    For which set of numbers do the average, median, and mode all have the same value?
    A

    2, 2, 2, 2, 4

    B

    1, 3, 3, 3, 5

    C

    1, 1, 2, 5, 6

    D

    1, 1, 1, 2, 5

    E

    1, 1, 3, 5, 10


    正确答案: A
    解析:
    Eliminate choice A. because the mode is 2 but the average (mean) of 2, 2, 2, 2, and 4 must be greater than 2. Eliminate choices C., D., and E. because the mode in each case is 1 but the average (mean) in each of these answer choices must be greater than 1. In choice B. the mode is 3, the average (mean) of 1,3,3,3, and 5 is (1+3+3+3+5)/5 =3 and the median is 3 since two values (1 and 3) are less than or equal to 3 and two other values (3 and 5) are equal to or greater than 3.

  • 第13题:

    下图中交换机同属一个VTP域。除交换机B外,所有交换机的VLAN配置都与交换机A相同。交换机A和B的VTP工作模式的正确配置是( )。

    A) set vtp mode transparent和set vtp mode server

    B) set vtp mode server和set vtp mode transparent

    C) set vtp mode server和set vtp mode client

    D) set vtp mode server和set vtp mode server


    正确答案:B
    (18)B)【解析】VTP有三种工作模式:VTPServer、VTPClient和VTPTransparent。VTPServer维护该VTP域中所有VLAN信息列表,可以建立、删除或修改VLAN:VTPClient其配置从VIPServer中学到,不能建立、删除和修改VLAN;VTPTransparent相当于一个独立的交换机,不从VTPServer学习VLAN的配置信息,只拥有本设备上自己维护VLAN的信息。选项B)中交换机A通过setvtpmodeserver设置为VTPServer,交换机B通过setvtpmodetransparent设置为VIPTransparent,这样才能满足题目条件。

  • 第14题:

    Companycom has seven days of vmstat data on four p5 590 production LPARs of four processors each. The data shows that all four LPARs have periodic utilizations of 90-95% lasting several minutes in duration. However, the average utilizations of the four LPARs were between 15-30%. The vmstat data shows that the peak utilizations of each LPAR do not occur at the same time. Which of the following should be set up?()

    • A、A shared pool with four capped LPARs
    • B、A shared pool with four uncapped LPARs
    • C、Four dedicated LPARs and use DLPAR to manage resources effectively
    • D、The server in SMP mode and use WLM to manage resources effectively

    正确答案:B

  • 第15题:

    You need to determine the correct wireless LAN topology for use in the Company network.  Which  three statements are true about the various WLAN topologies?()

    • A、 In ad hoc mode, the Independent Basic Service Set (IBSS) is a framework in which mobile  clients connect directly without an intermediate access point.
    • B、 In Infrastructure mode, the Basic Service Set (BSS) is a framework in which mobile clients use  a single access point for connecting to each other or to wired network resources.
    • C、 In Infrastructure mode, the Extended Services Set (ESS) is a framework in which two or more  Basic Service Sets are connected by a common distribution system (DS).
    • D、 In Infrastructure mode, the Independent Basic Service Setet (IBSS) is a framework in which  mobile clients connect directly without an intermediate access point.
    • E、 In ad hoc mode, the Basic Service Set (BSS) is a framework in which mobile clients use a  single AP for connecting to each other or to wired network resources.
    • F、 In ad hoc mode, the Extended Services Set (ESS) is a framework in which two or more Basic  Service Sets are connected by a common distribution system (DS)

    正确答案:A,B,C

  • 第16题:

    In which of the following locations would a technician set the LBA mode for a hard drive?()

    • A、Jumper Settings
    • B、Disk Manager
    • C、Device Manager
    • D、System BIOS

    正确答案:D

  • 第17题:

    Which operational mode command can be used to synchronize the local system with an NTP server?()

    • A、set ntp time 64.32.129.3
    • B、set clock ntp 64.32.129.3
    • C、set time 64.32.129.3
    • D、set date ntp 64.32.129.3

    正确答案:D

  • 第18题:

    单选题
    For the set of numbers 2,2,4,5, and 12, which statement is true?
    A

    Mean = Median

    B

    Mean > Mode

    C

    Mean < Mode

    D

    Mode = Median

    E

    Mean = Mode


    正确答案: A
    解析:
    For the set of numbers 2, 2, 4, 5, and 12, the mode is 2, the mean (or average) is age) is (2+2+4+5+12)/5 = 5 and the median or middle value in the list is 4. Hence, the mean is greater than the mode.

  • 第19题:

    单选题
    You want to use the automatic management of backup and recovery operations features for your database. Which configuration must you set?()
    A

     Enable the flash recovery area and specify it as the archived redo log destination.

    B

     Disable the flash recovery area and start the database instance in ARCHIVELOG mode.

    C

     Enable the flash recovery area but do not specify it as the archived redo log destination. 

    D

     Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    If the set S is composed of the following numbers {99, 100, 100, 105, 106, 116, 123}, which of the following is largest?
    A

    The average (arithmetic mean) of set S

    B

    The median of set S

    C

    The mode of set S

    D

    The range of set S

    E

    The standard deviation of set S


    正确答案: A
    解析:
    根据公式可知,A项S数集的平均数=107,B项S数集的中位数=105,C项S数集的众数=100,D项S数集的极差=24,E项S数集的标准差≈9,故本题选A项。

  • 第21题:

    单选题
    The average (arithmetic mean) of a set of seven numbers is 81. If one of the numbers is discarded, the average of the remaining numbers is 78. What is the value of the number that was discarded?
    A

    98

    B

    99

    C

    100

    D

    101

    E

    102


    正确答案: B
    解析:
    If the average (arithmetic mean) of a set of seven numbers is 81, then the sum of these seven numbers is 7 x 81 or 567. Since, if one of the numbers is discarded, the average of the six remaining numbers is 78, the sum of these six numbers is 6×78 or 468. Since 567 - 468 = 99, the value of the number that was discarded is 99.

  • 第22题:

    单选题
    You want to use the automatic management of backup and recovery operations features for your database.Which configuration must you set?()
    A

    Enable the flash recovery area and specify it as the archived redo log destination.

    B

    Disable the flash recovery area and start the database instance in ARCHIVELOG mode.

    C

    Enable the flash recovery area but do not specify it as the archived redo log destination.

    D

    Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    Which VTP mode should a Cisco switch be set to if this switch is to add or delete VLANs to a management domain?()
    A

    Transparent

    B

    Server

    C

    Auto

    D

    Client

    E

    User


    正确答案: B
    解析: 暂无解析

  • 第24题:

    问答题
    If M is a set of five numbers p, q, r, s and t, is the range of numbers in M greater than 5?  (1) The average (arithmetic mean) of p, q, r, S, and t is 5.  (2) p-r>5.

    正确答案: B
    解析:
    条件1不能判断M数集的极差;由p-r>5可知p、r间的距离大于5,故M的极差大于5,所以本题应选B项。