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【单选题】

Which one of the binary number ranges shown below corresponds to the value of the first octet in Class B address range?（）

A、10000000-11101111

B、11000000-11101111

C、10000000-10111111

D、10000000-11111111

E、11000000-10111111

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更多“Which one of the binary number ranges shown below corresponds to the value of the first octet in Class B address range?（）”相关的问题
第1题
[单选题] You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）

A、One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.  B、One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.  C、Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.  D、None of the tables are recovered from the Recycle Bin, and the statement returns an error.  

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第2题
[单选题] You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema.You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）

A、One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.  B、One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.  C、Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.  D、None of the tables are recovered from the Recycle Bin, and the statement returns an error.  

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第3题
[单选题] Line throwing apparatus aboard ship must contain（）.

A、two rockets，one of which shall be the buoyant type  B、three rockets，one of which shall be the buoyant type  C、four rockets，two of which shall be the buoyant type  D、five rockets，two of which shall be the buoyant type  

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第4题
[单选题] An operator is asked to verify the exact location of the default JRE binary. The following commands were run: $ which java /usr/bin/java $ ls -l /usr/bin/java lrwxrwxrwx 1 root other 23 Jan 27 2006 /usr/bin/java -> ../jre1.5.0_06/bin/java Based on the command outputs above, what is the path to the java executable file?（）

A、/usr/bin/java  B、/usr/jre1.5.0_06/bin/java  C、/usr/bin/jre1.5.0_06/bin/java  D、/usr/bin/java/jre1.5.0_06/bin/java  

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第5题
[] The ways in which words follow one another and are related to one another is called the syntagmatic dimension of language, the dimension of “chaining” or “sequencing”.（）

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第6题
[单选题] The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.

A、one-millionth part of a second  B、one-thousandth part of a second  C、one-hundredth part of a second  D、one-tenth part of a second  

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第7题
[单选题] When run on a machine called client， which of the following commands will mount the /usr/local/bin directory from the host over the /home/bin directory on client？（）

A、mount host：/home/bin /usr/local/bin  B、mount client：/home/bin /usr/local/bin  C、mount -n host /usr/local/bin /home/bin  D、mount -o host：/usr/local/bin /home/bin  

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第8题
[单选题] When run on a machine called client， which of the following commands would mount the /usr/local/bin directory from the host machine over the /home/bin directory on client？（）

A、mount host：/usr/local/bin /home/bin  B、mount client：/home/bin /usr/local/bin  C、mount -o client：/usr/local/bin /home/bin  D、mount -n host：/home/bin /usr/local/bin  

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第9题
[单选题] An operator needs to change from the /usr/bin to the /var/spool directory. Which of the following commands will accomplish this?（）

A、cd /var/spool  B、lcd /var/spool  C、cd /usr/bin /var/spool  D、lcd /usr/bin /var/spool  

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第10题
[多选题] You executed the following command to drop a user: DROP USER scott CASCADE; Which two statements regarding the above command are correct?（）

A、All the objects of scott are moved to the Recycle Bin.  B、Any objects in the Recycle Bin belonging to scott are purged.  C、All the objects owned by scott are permanently dropped from the database.  D、All the objects of scott in the Recycle Bin must be purged before executing the DROP command.  E、Any objects in the Recycle Bin belonging to scott will not be affected by the above DROP command.  

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