更多“什么是block?”相关问题
  • 第1题:

    What is true about a Pre-Block ACLconfigured when setting up your sensor toperform IP Blocking?()

    • A、 The Pre-Block ACL is overwritten when a blockingaction is initiatied by the sensor
    • B、 The blocking ACL entries generated by the sensor override the Pre-Block ACL entries
    • C、 The Pre-Block ACL entries override the blocking ACL entries generated by the sensor
    • D、 The Pre-Block ACL is replaced by the Post-Block ACL when a blocking actionis initiated bythe sensor
    • E、 You can not configure a Pre-Block ACL when configuring IP Blockingon your sensor

    正确答案:C

  • 第2题:

    APG网元计费出现拥塞的时候,一般那几个SIZE会迅速增大?()

    • A、SAE=500,BLOCK=CHOF
    • B、SAE=604,BLOCK=CHOF
    • C、SAE=500,BLOCK=CHOP
    • D、SAE=604,BLOCK=CHOP

    正确答案:C,D

  • 第3题:

    wblock与block的区别是什么?


    正确答案:WBLOCK是生成外部文件,BLOCK是生成内部块。

  • 第4题:

    display:inline-block 什么时候会显示间隙?


    正确答案:移除空格、使用margin负值、使用font-size:0、letter-spacing、word-spacing

  • 第5题:

    Given that a static method doIt() in a class Work represents work to be done, what block of code will succeed in starting a new thread that will do the work?   CODE BLOCK a:   Runnable r = new Runnable() {   public void run() {   Work.doIt();   }   };   Thread t = new Thread(r);   t.start();   CODE BLOCK b:   Thread t = new Thread() {  public void start() {   Work.doIt();  }  };   t.start();   CODE BLOCK c:   Runnable r = new Runnable() {   public void run() {   Work.doIt();   }   };   r.start();  CODE BLOCK d:   Thread t = new Thread(new Work());   t.start();   CODE BLOCK e:   Runnable t = new Runnable() {   public void run() {   Work.doIt();   }   };   t.run();  

    • A、Code block a.
    • B、Code block B.
    • C、Code block c.
    • D、Code block d.
    • E、Code block e.

    正确答案:A

  • 第6题:

    The DB_BLOCK_CHECKING initialization parameter is set to FALSE. What level of block checking would be performed?()

    • A、 The Oracle database will not perform block checking for any of the data blocks.
    • B、 The Oracle database will perform block checking for the default permanent tablespace only. 
    • C、 The Oracle database will perform block checking for the data blocks in all user tablespaces.
    • D、 The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only.
    • E、 The Oracle database will perform block checking for the data blocks in the SYSTEM and SYSAUX tablespaces.

    正确答案:D

  • 第7题:

    Which RMAN backup command is used to create the block-change tracking file?()  

    • A、 alter database create block change tracking file
    • B、 alter database enable block change file
    • C、 alter database enable block change tracking using file ,/ora01/opt/ block_change_tracking.fil
    • D、 alter system enable block change tracking using file ’/ora01/opt/block_ change_tracking.fil’
    • E、 alter system block change tracking on

    正确答案:C

  • 第8题:

    While querying the EMPLOYEES table, you receive an ORA-01578 message indicating block corruption in File# 1201 and Block# 1968. You analyze the table and the corruption is verified.  Which RMAN command do you use to perform BMR and repair the corrupt block?()  

    • A、 RECOVER FILE=1201 BLOCK=1968
    • B、 RECOVER CORRUPTION LIST
    • C、 RECOVER DATAFILE 1201 BLOCK 1968
    • D、 RECOVER BLOCK CORRUPTION LIST
    • E、 None of the above

    正确答案:B,C

  • 第9题:

    In the COURSE_ENROLLMENT form module, you define a master-detail relation between the COURSES_OFFERED data block and the STUDENT data block, respectively. To implement block coordination, which statement must be true?()

    • A、 The Enforce Primary Key property on the STUDENT block is set to Yes. 
    • B、 The Alias property on the COURSES_OFFERED block is set to Student. 
    • C、 The Copy Value from item property on the foreign key item in the STUDENT blocks is set to the primary key item of the COURSES_OFFERED block. 
    • D、 The Synchronize with item property on the foreign key item in the STUDENT block is set to the primary key item of the COURSES_OFFERED block.

    正确答案:C

  • 第10题:

    问答题
    display:inline-block 什么时候会显示间隙?

    正确答案: 移除空格、使用margin负值、使用font-size:0、letter-spacing、word-spacing
    解析: 暂无解析

  • 第11题:

    多选题
    While querying the EMPLOYEES table, you receive an ORA-01578 message indicating block corruption in File# 1201 and Block# 1968. You analyze the table and the corruption is verified.  Which RMAN command do you use to perform BMR and repair the corrupt block?()
    A

    RECOVER FILE=1201 BLOCK=1968

    B

    RECOVER CORRUPTION LIST

    C

    RECOVER DATAFILE 1201 BLOCK 1968

    D

    RECOVER BLOCK CORRUPTION LIST

    E

    None of the above


    正确答案: C,E
    解析: 暂无解析

  • 第12题:

    单选题
    The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed?()
    A

     The Oracle database will perform block checking for the index blocks only

    B

     The Oracle database will not perform block checking for any of the data blocks

    C

     The Oracle database will perform block checking for the default permanent tablespace only

    D

     The Oracle database will perform block checking for the data blocks in all user tablespaces

    E

     The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only


    正确答案: B
    解析: 暂无解析

  • 第13题:

    Which three types of content filtering are supported only for HTTP? ()(Choose three.)

    • A、block Flash
    • B、block Java applets
    • C、block ActiveX
    • D、block EXE files
    • E、block MIME type

    正确答案:B,C,D

  • 第14题:

    APG40系统发生计费拥塞时,应该立即扩SAE()和SAE446:

    • A、SAE=500,BLOCK=CHOP
    • B、SAE=500,BLOCK=CHOF
    • C、SAE=604,BLOCK=CHOF
    • D、SAE=604,BLOCK=CHOP

    正确答案:A

  • 第15题:

    以下代码中能够实现显示对象的选项的是()。

    • A、obj.style.display;’block’;
    • B、obj.style.display=’block’;
    • C、obj.display=’block’;
    • D、obj.style.display;’none’;

    正确答案:B

  • 第16题:

    对于爱立信APG网元,出现CCO告警时应该密切关注哪个SAE值()。

    • A、SAE、500、BLOCK、CHOF
    • B、SAE、501、BLOCK、CHOF
    • C、SAE、500、BLOCK、CHOP
    • D、SAE、501、BLOCK、CHOP

    正确答案:C

  • 第17题:

    Which CLI command do you use to block MIME content at the [edit security utm feature-profile] hierarchy?()

    • A、set content-filtering profile permit-command block-mime
    • B、set content-filtering profile block-mime
    • C、set content-filtering block-content-type block-mime
    • D、set content-filtering notifications block-mime

    正确答案:B

  • 第18题:

    The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关  Which block checking would be performed?()

    • A、The Oracle database will perform block checking for the index blocks only 
    • B、The Oracle database will not perform block checking for any of the data blocks 
    • C、The Oracle database will perform block checking for the default permanent tablespace only 
    • D、The Oracle database will perform block checking for the data blocks in all user tablespaces 
    • E、The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle

    正确答案:E

  • 第19题:

    The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed?()  

    • A、 The Oracle database will perform block checking for the index blocks only
    • B、 The Oracle database will not perform block checking for any of the data blocks
    • C、 The Oracle database will perform block checking for the default permanent tablespace only
    • D、 The Oracle database will perform block checking for the data blocks in all user tablespaces
    • E、 The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only

    正确答案:E

  • 第20题:

    Which dynamic view displays the status of block-change tracking?()

    • A、V$BLOCK_CHANGE 
    • B、V$BLOCK_CHANGE_TRACKING 
    • C、V$BLOCKCHANGE 
    • D、V$BLOCK_TRACKING

    正确答案:B

  • 第21题:

    关于Block和Split两个概念,下面说法错误的是()

    • A、Block是HDFS中最小的数据存储单位
    • B、Split是MapReduce中最小的计算单元
    • C、Block与Split是一一对应关系
    • D、Block和Split之间对应关系是任意的,可由用户控制

    正确答案:A,D

  • 第22题:

    单选题
    Which RMAN backup command is used to create the block-change tracking file?()
    A

     alter database create block change tracking file

    B

     alter database enable block change file

    C

     alter database enable block change tracking using file ,/ora01/opt/ block_change_tracking.fil

    D

     alter system enable block change tracking using file ’/ora01/opt/block_ change_tracking.fil’

    E

     alter system block change tracking on


    正确答案: E
    解析: 暂无解析

  • 第23题:

    单选题
    In the COURSE_ENROLLMENT form module, you define a master-detail relation between the COURSES_OFFERED data block and the STUDENT data block, respectively. To implement block coordination, which statement must be true?()
    A

     The Enforce Primary Key property on the STUDENT block is set to Yes. 

    B

     The Alias property on the COURSES_OFFERED block is set to Student. 

    C

     The Copy Value from item property on the foreign key item in the STUDENT blocks is set to the primary key item of the COURSES_OFFERED block. 

    D

     The Synchronize with item property on the foreign key item in the STUDENT block is set to the primary key item of the COURSES_OFFERED block.


    正确答案: C
    解析: 暂无解析