更多“微量元素 microelement, trace element”相关问题
  • 第1题:

    You are developing a Windows Communication Foundation (WCF) service. The service configuration file has a element defined. You need to ensure that all security audit information, trace logging, and message logging failures are recorded.Which configuration segment should you add to the element?()

    A.

    B.

    C.

    D.


    参考答案:C

  • 第2题:

    在J2EE中,使用()选项中的代码,可以生成如下XML文档:    Tony Blair   

    • A、Element people = doc.createElement("PEOPLE");  Element person = doc.createElement("PERSON"); Element name = doc.createElement("NAME"); name.appendChild(doc.createTextNode("Tony Blair")); people.appendChild(person); person.appendChild(name); doc.appendChild(people);
    • B、Element people = doc.createElement("PEOPLE");  Element person = doc.createElement("PERSON"); people.appendChild(person); Element name = doc.createElement("NAME"); name.appendChild(doc.createTextNode("Tony Blair")); person.appendChild(name); doc.appendChild(people);
    • C、Element people = doc.createElement("PEOPLE");  Element person = doc.createElement("PERSON"); people.appendChild(person); Element name = doc.createElement("NAME"); name.appendText(doc.createTextNode("Tony Blair")); person.appendChild(name); doc.appendChild(people);
    • D、Element people = doc.createElement("PEOPLE");  Element person = doc.createElement("PERSON");Element name = doc.createElement("NAME"); name.createTextNode("Tony Blair"); people.appendChild(person); person.appendChild(name); doc.appendChild(people);

    正确答案:A,B

  • 第3题:

    有如下XML代码段: <element>text</element> 可以通过哪些方法获得标记<element>中的数据“text”?


    正确答案: 第一种方法:获得Element节点“element”,通过Node接口的getTextContent()方法获得“element”节点的文本数据。
    第二种方法:获得Element节点“element”的子节点,即Text类型节点,通过Text节点的getWholeText()方法获得文本数据。

  • 第4题:

    You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform?()

    • A、Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database.
    • B、Add a system.diagnostics section to the Web.config file. Then add a listener to the new section.
    • C、Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records.
    • D、In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement.

    正确答案:A,B

  • 第5题:

    一个元素内容中既含有文本也含有子元素,应当怎样定义()

    • A、<xs:element name="example" type=" xs:mixed ">
    • B、<xs:element name="example"> <xs:complexType>
    • C、<xs:element name="example"> <xs:complexType mixed="false">
    • D、<xs:element name="example"> <xs:complexType mixed="true">

    正确答案:D

  • 第6题:

    windows系统中用什么命令来跟踪路由()

    • A、trace route
    • B、tracert route
    • C、traceroute route
    • D、trace route

    正确答案:B

  • 第7题:

    Which of the following kdb commands is used to obtain a stack trace from a dump? ()

    • A、 trb 
    • B、 his 
    • C、 f 
    • D、 trace

    正确答案:C

  • 第8题:

    单选题
    You backed up the control file to trace. Which statement is true about the trace file generated?()
    A

    The trace file is in binary format.

    B

    The trace file has a SQL script to re-create the control file.

    C

    The trace file is a backup set created during the backup of the control file. 

    D

    The trace file contains the instructions to manually re-create the control file.

    E

    The trace file is an image copy of the control file created during the backup of the control file.


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    In your test database, you find that a user’s session is executing a lot of SQL statements, resulting in the generation of a large number of trace files. While investigating the reason, you find that SQL trace has been enabled at the instance level.  You want to disable SQL trace, remotely, only for that user session to reduce the volume of trace data being generated.  How do you achieve this objective?()
    A

    by setting the SQL_TRACE parameter to FALSE in the parameter file

    B

    by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user session

    C

    by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user session

    D

    by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session


    正确答案: A
    解析: 暂无解析

  • 第10题:

    多选题
    Which two are valid values for the  element inside a  element ofa web application deployment descriptor?()
    A

    NULL

    B

    SECURE

    C

    INTEGRAL

    D

    ENCRYPTED

    E

    CONFIDENTIAL


    正确答案: C,D
    解析: 暂无解析

  • 第11题:

    单选题
    在jQuery的层次选择器中,要选取紧接在element1元素后的一个element2元素,正确的是()。
    A

    $(element1空格element2)

    B

    $(element1>element2)

    C

    $(element1+element2)

    D

    $(element1~element2)


    正确答案: C
    解析: 暂无解析

  • 第12题:

    多选题
    Which two are valid values for the  element inside a  element of a web application deployment descriptor?()
    A

    NULL

    B

    SECURE

    C

    INTEGRAL

    D

    ENCRYPTED

    E

    CONFIDENTIAL


    正确答案: D,E
    解析: 暂无解析

  • 第13题:

    Publishingwassuccessfulbutthestorewon’tlaunch.Whichlogshouldbecheckedforerrorsaftertracinghasbeenenabled?()

    A.trace.log

    B.message.txt

    C.activity.log

    D.trace.txt

    E.SystemOut.log


    参考答案:A, C

  • 第14题:

    分析以下DTD文档: <!--ELEMENT doc(title?,chap*)--> <!-- ELEMENT title(#PCDATA)--> <!-- ELEMENT chap(sect+)--> <!-- ELEMENT sect(para+)--> <!-- ELEMENT para(#PCDATA)--> 下面的XML实例能够通过DTD的校验。()

    • A、<doc><chap><para>Text</para></chap></doc>
    • B、<doc><chap><sect><para>Text</para></chap></doc>
    • C、<doc><title>Text</title></doc>(*红色)
    • D、<doc><title>Text</title><sect><para>Text</para></sect></doc>

    正确答案:B

  • 第15题:

    Which two statements are true regarding trace options on Junos devices?()

    • A、You can see the contents of the log file by entering the show log <filename> command
    • B、Trace options will send information to your screen automatically
    • C、Trace options are limited to one protocol at a time
    • D、The file name and set of flags may be specified when enabling trace options

    正确答案:A,D

  • 第16题:

    下面的文件正确吗?为什么?用IE和本章中的解析器验证你的结论。 mes.dtd <!ELEMENT message ANY> <!ELEMENT persion (name,age?,lxfs)> <!ELEMENT lxfs (#PCDATA,tel|email)*> <!ELEMENT name (first,last)> <!ATTLIST name sex (male|female) "male"> <!ELEMENT first %pc; > <!ELEMENT last %pc;> <!ELEMENT age %pc;> <!ELEMENT tel %pc;> <!ELEMENT email %pc;> <!ENTITY % pc “(#PCDATA)”> <!ELEMENT emergency EMPTY> <!ATTLIST emergency fire CDATA #FIXED "119" police CDATA #FIXED "110" hospital CDATA #FIXED "120" > mes.xml <?xml version="1.0" encoding="gb2312"?> <!DOCTYPE SYSTEM "mes.dtd"> <message> <persion> <name sex="男"> <first>li</first> <last>xiao</last> </name> <age>25</age> <lxfs> <tel>123456</tel> </lxfs> </persion> <persion> <name> <first>wang</first> <last>xiao</last> </name> <lxfs></lxfs> </persion> <emergency fire="120" police="110" /> </message>


    正确答案: 不正确。有5处错误,“<!ELEMENT lxfs (#PCDATA,tel|email)*>”句“#PCDATA”与“tel”之间应该用“|”,或去掉“#PCDATA”;参数实体应先声明后使用;文档类型声明缺少根元素;“name”的“sex”属性取值错误;“emergency”的“fire”属性取值错误。正确的文件:mes.dtd <!ELEMENT message ANY>
    <!ELEMENT persion (name,age?,lxfs)>
    <!ELEMENT lxfs (#PCDATA|tel|email)*>
    <!ELEMENT name (first,last)>
    <!ATTLIST name sex (male|female) "male">
    <!ENTITY % pc "(#PCDATA)">
    <!ELEMENT first %pc; >
    <!ELEMENT last %pc;>
    <!ELEMENT age %pc;>
    <!ELEMENT tel %pc;>
    <!ELEMENT email %pc;>
    <!ELEMENT emergency EMPTY>
    <!ATTLIST emergency
    fire CDATA #FIXED "119"
    police CDATA #FIXED "110"
    hospital CDATA #FIXED "120"

    mes.xml
    <?xml version="1.0" encoding="gb2312"?>
    <!DOCTYPE message SYSTEM "mes.dtd">
    <message>
    <persion>
    <name sex="male">
    <first>li</first>
    <last>xiao</last>
    </name>
    <age>25</age>
    <lxfs>
    <tel>123456</tel>
    </lxfs>
    </persion>
    <persion>
    <name>
    <first>wang</first>
    <last>xiao</last>
    </name>
    <lxfs></lxfs>
    </persion>
    <emergency fire="119" police="110" />
    </message>

  • 第17题:

    用strace工具跟踪某个进程与网络相关的活动,则执行()命令。

    • A、strace trace=network process_name
    • B、strace trace=process_name
    • C、strace process_name
    • D、strcace trace=process_namenetwork

    正确答案:A

  • 第18题:

    在jQuery的层次选择器中,要选取紧接在element1元素后的一个element2元素,正确的是()。

    • A、$(element1空格element2)
    • B、$(element1>element2)
    • C、$(element1+element2)
    • D、$(element1~element2)

    正确答案:C

  • 第19题:

    You create a Web application. You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform? ()

    • A、Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database.
    • B、Add a system.diagnostics section to the Web.config file. Then add a listener to the new section.
    • C、Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records.
    • D、In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement.

    正确答案:A,B

  • 第20题:

    单选题
    A Windows Communication Foundation (WCF) application exposes a service as a SOAP endpoint for consumption by cross-platform clients.During integration testing, you find that one of the clients is not generating the correct messages to the WCF application.In order to debug the issue and fix the communication, you need to configure the service to log messages received from the client.What should you do?()
    A

    Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel trace source.

    B

    Set an etwTracking behavior on the service and configure a listener for the System.ServiceModel.MessageLogging trace source.

    C

    Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel.MessageLogging trace source.

    D

    Enable messageLogging in the System.ServiceModel diagnostics element configuration and configure a listener for the System.ServiceModel trace source.


    正确答案: B
    解析: 暂无解析

  • 第21题:

    名词解释题
    微量元素 microelement, trace element

    正确答案: 植物需要量或含量甚微的元素。包括铁、锰、硼、锌、铜、钼和氯等。
    解析: 暂无解析

  • 第22题:

    多选题
    You create a Web application. You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform? ()
    A

    Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database.

    B

    Add a system.diagnostics section to the Web.config file. Then add a listener to the new section.

    C

    Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records.

    D

    In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement.


    正确答案: A,B
    解析: 暂无解析

  • 第23题:

    名词解释题
    微量元素(trace element或microelement)

    正确答案: 微生物细胞需要量很小的元素,包括锰、锌、铜、钴、镍、硒等。
    解析: 暂无解析