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单选题（）are often used to organize and index the information or prices of objects.A Object codesB Bar codesC ReferencesD Notes

题目
单选题
（）are often used to organize and index the information or prices of objects.
A

Object codes

B

Bar codes

C

References

D

Notes

相似考题

1.View the Exhibit for some of the parameter settings. You start a session and issue the following command:SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;What is the outcome of the above command?（）A. The index is not used by the optimizer but is maintained during DML operations.B. The index is not used by the optimizer and is not maintained during DML operations.C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.

2.The Assembly Language is often used to distinguish(73)machine-readable information from textual human-readable information.A．binaryB．hexC．octalD．decimal

3.()are often used to organize and index the information or prices of objects.A. Object codesB. Bar codesC. ReferencesD. Notes

4.下面程序执行后，baz的值应是______。 public class Test9 { public static void main(String[] args) { int index = 1; int fox[] = new int [3]; iht bar = fox [index]; int baz = bar + index; System.out.println(baz); } }A．0B．1C．2D．编译错误

更多“单选题（）are often used to organize and index the information or prices of objects.A Object codesB Bar codesC ReferencesD Notes”相关问题

  • 第1题：

    Which command can be used to display information from the PvDv object class in the ODM?()

    A.odmlist

    B.odmshow

    C.lsdev -P

    D.lsattr -El


    参考答案：C

  • 第2题：

    Which two characteristics are true of a firewall running in routed mode based on the following information?()

    A. FWSM routes traffic between the VLANs.

    B. FWSM switches traffic between the VLANs.

    C. Routed mode is often called bump-in-the-wire mode.

    D. Routed mode firewall deployments are used most often in current designs.


    参考答案：A, D

  • 第3题：

    Which command can be used to display information from the PvDv object class in the ODM？（）  

    • A、odmlist
    • B、odmshow
    • C、lsdev -P
    • D、lsattr -El

    正确答案:C

  • 第4题：

    int index = 1；   int foo = new int ；   int bar = foo [index]；   int baz = bar + index；   What is the result？（）

    • A、 Baz has the value of 0
    • B、 Baz has the value of 1
    • C、 Baz has the value of 2
    • D、 An exception is thrown.
    • E、 The code will not compile.

    正确答案:B

  • 第5题：

    The customer and order tables are often used in joins， thereby resulting in complex queries. You created views to simplify the writing of queries. These views are stored in（）.

    • A、user tables
    • B、view segment
    • C、table segment
    • D、data dictionary
    • E、object segment
    • F、performance tables

    正确答案:D

  • 第6题：

    单选题
    When does Oracle9i flag an index as being used in the V$OBJECT_USAGE view？（）
    A

    During a query’s parse time only. 

    B

    During a query’s execution time only. 

    C

    During any kind of DML statement execution. 

    D

    During the execution of an INSERT statement only.


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    foo and bar are public references available to many other threads. foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait（）. From another thread， which statement is the most reliable way to ensue that foo will stop executing wait（）？
    A

     foo.notify（）；

    B

     bar.notify（）；

    C

     foo.notifyAll（）；

    D

     Thread.notify（）；

    E

     bar.notiFYAll（）；

    F

     Object.notify（）；


    正确答案： D
    解析： 暂无解析

  • 第8题：

    多选题
    The InnoDB engine has a feature known as clustered indexes. Which three statements are true about clustered indexes as used in InnoDB?（）
    A

    A primary key must exist for creation of a clustered index

    B

    A clustered index allows fulltext searching within InnoDB

    C

    The first unique index is always used as a clustered index and not a primary key

    D

    A clustered index provides direct access to a page containing row data

    E

    If no indexes exist, a hidden clustered index is generated based on row IDs

    F

    A primary key is used as a clustered index

    G

    A clustered index is a grouping of indexes from different tables into a global index for faster searching


    正确答案： D,E,F
    解析： 暂无解析

  • 第9题：

    单选题
    You issued the following statement to monitor the usage of the index：        SQL> ALTER INDEX SCOTT.EMP_IDX MONITORING USAGE；   Which view will you query to ensure that the index is being monitored？（）
    A

     INDEX_STATS

    B

     DBA_INDEXES

    C

     DBA_IND_COLUMNS

    D

     V$OBJECT_USAGE


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    Which of the following is used to connect existing Notes Forms to XPages？（）
    A

    Data Source

    B

    Schema Definition

    C

    Domino Document

    D

    Data Binding


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database which is named Sellings in the instance. The Sellings database contains a table named Productions. The table is used to stores information about all types of products. The Productions table is often queried by users on the basis of the RadioSize column. The RadioSize column contains the NULL value for all products other than Radios. Currently no index exists on the RadionSize column. According to the requirement of the company CIO, you have to optimize the query performance and reduce the effect on the disk space to the least. So what action should you perform to achieve this goal?（）
    A

    On the Products table, you should create a view. 

    B

    On the RadioSize column, you should create a clustered index 

    C

    On the RadioSize column, you should create a filtered index 

    D

    On the RadioSize column, you should create a unique clustered index


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    （）are often used to organize and index the information or prices of objects.
    A

    Object codes

    B

    Bar codes

    C

    References

    D

    Notes


    正确答案： B
    解析： 暂无解析

  • 第13题：

    下列程序执行后，baz的值应是 int index=1； int fox[ ]=new int[3]； Int bar=fox[index]； int baz：bar+index；

    A．0

    B．1

    C．2

    D．编译错误


    正确答案：B
    解析：intfox[]=newint[3]；这时数组的每个元素都初始化为0，所以intbaz=bar+index；其实，这时bar的值是0，这样便有baz的值1。

  • 第14题：

    （）are often used to organize and index the information or prices of objects.

    • A、Object codes
    • B、Bar codes
    • C、References
    • D、Notes

    正确答案:B

  • 第15题：

    Given：  foo and bar are public references available to many other threads， foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait（）.  From another thread， what provides the most reliable way to ensure that foo will stop executing wait（）？（）

    • A、foo.notify（）；
    • B、bar.notify（）；
    • C、foo.notifyAll（）；
    • D、Thread.notify（）；
    • E、bar.notifyAll（）；
    • F、Object.notify（）；

    正确答案:E

  • 第16题：

    You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used.  Which method would you follow to achieve this？（）

    • A、enable index monitoring and query the DBA_OBJECTS view
    • B、enable index monitoring and query the DBA_INDEXES view
    • C、enable index monitoring and query the V$OBJECT_USAGE view
    • D、enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view

    正确答案:C

  • 第17题：

    The InnoDB engine has a feature known as clustered indexes. Which three statements are true about clustered indexes as used in InnoDB?（）

    • A、A primary key must exist for creation of a clustered index
    • B、A clustered index allows fulltext searching within InnoDB
    • C、The first unique index is always used as a clustered index and not a primary key
    • D、A clustered index provides direct access to a page containing row data
    • E、If no indexes exist, a hidden clustered index is generated based on row IDs
    • F、A primary key is used as a clustered index
    • G、A clustered index is a grouping of indexes from different tables into a global index for faster searching

    正确答案:D,E,F

  • 第18题：

    单选题
    int index = 1；  int [] foo = new int [3]；  int bar = foo [index]；  int baz = bar + index；   What is the result？（）
    A

     Baz has the value of 0

    B

     Baz has the value of 1

    C

     Baz has the value of 2

    D

     An exception is thrown.

    E

     The code will not compile.


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Which command can be used to display information from the PvDv object class in the ODM？（）
    A

    odmlist

    B

    odmshow

    C

    lsdev -P

    D

    lsattr -El


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used.  Which method would you follow to achieve this？（）
    A

    enable index monitoring and query the DBA_OBJECTS view

    B

    enable index monitoring and query the DBA_INDEXES view

    C

    enable index monitoring and query the V$OBJECT_USAGE view

    D

    enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    This machine （）out of order very often, but now it works well.
    A

    is used to be

    B

    was used to be

    C

    used to be

    D

    was used to


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Lisa was busy taking notes _____ Mark was searching the Internet for the information.
    A

    until

    B

    unless

    C

    while

    D

    if


    正确答案： B
    解析：
    本题考查连词用法。句意：马克上网查资料时，莉莎正忙着做笔记。until意为“到……为止，在……以前，直到……才”；unless意为“如果不，除非”；while意为“当……的时候；然而”；if意为“如果”。句中两个分句都是过去进行时，表示同时发生的动作。正确答案选C。

  • 第23题：

    单选题
    int index = 1；   int foo = new int ；   int bar = foo [index]；   int baz = bar + index；   What is the result？（）
    A

     Baz has the value of 0

    B

     Baz has the value of 1

    C

     Baz has the value of 2

    D

     An exception is thrown.

    E

     The code will not compile.


    正确答案： E
    解析： 暂无解析

  • 第24题：

    单选题
    You executed the following procedure to collect statistics regarding an index：       SQL>ANALYZE INDEX EMP_ID VALIDATE STRUCTURE；   Which view will you use to determine whether you need to rebuild the index or not？（）
    A

     INDEX_STATS

    B

     DBA_INDEXES

    C

     DBA_IND_COLUMNS

    D

     V$OBJECT_USAGE


    正确答案： D
    解析： 暂无解析

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