The desirable properties of a marine fuel oil should include（）..

第1题

[单选题] What is the process for creating an NFS mount between two servers in the same network zone?（）

A、Export the desired filesystem in the /etc/nfs file, run 'exportfs -a', create a mount directory on the desired server, and mount the NFS filesystem. B、Run 'exportfs -a', export the desired filesystem in the /etc/nfs file, create a mount directory on the desired server, and mount the NFS filesystem. C、Export the desired filesystem in the /etc/exports file, run 'exportfs -a', create a mount directory on the desired server, and mount the NFS filesystem. D、Run 'exportfs -u', export the desired filesystem in the /etc/exports file, create a mount directory on the desired server, and mount the NFS filesystem.

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第2题

[单选题] The EMP table contains these columns: You need to display the employees who have not been assigned to any department. You write the SELECT statement: What is true about this SQL statement?（）

A、The SQL statement displays the desired results. B、The column in the WHERE clause should be changed to display the desired results. C、The operator in the WHERE clause should be changed to display the desired results. D、The WHERE clause should be changed to use an outer join to display the desired results.

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第3题

[单选题] What is the process for creating an NFS mount between two servers in the same network zone？（）

A、Export the desired filesystem in the /etc/nfs file， run ’exportfs -a’，create a mount directory on the desired server， and mount the NFS filesystem. B、Run ’exportfs -a’，export the desired filesystem in the /etc/nfs file，create a mount directory on the desired server， and mount the NFS filesystem. C、Export the desired filesystem in the /etc/exports file， run ’exportfs -a’，create a mount directory on the desired server，and mount the NFS filesystem. D、Run ’exportfs -u’，export the desired filesystem in the /etc/exports file， create a mount directory on the desired server，and mount the NFS filesystem.

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第4题

[单选题] The EMP table contains these columns: LAST NAME VARCHAR2(25) SALARY NUMBER(6,2) DEPARTMENT_ID NUMBER(6) You need to display the employees who have not been assigned to any department. You write the SELECT statement: SELECT LAST_NAME, SALARY, DEPARTMENT_ID FROM EMP WHERE DEPARMENT_ID = NULL; What is true about this SQL statement?（）

A、The SQL statement displays the desired results. B、The column in the WHERE clause should be changed to display the desired results. C、The operator in the WHERE clause should be changed to display the desired results. D、The WHERE clause should be changed to use an outer join to display the desired results.

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第5题

[单选题] The EMP table contains these columns: LAST NAME VARCHAR2(25) SALARY NUMBER(6,2) DEPARTMENT_ID NUMBER(6) You need to display the employees who have not been assigned to any department. You write the SELECT statement: SELECT LAST_NAME, SALARY, DEPARTMENT_ID FROM EMP WHERE DEPARMENT_ID = NULL; What is true about this SQL statement? （）

A、The SQL statement displays the desired results. B、The column in the WHERE clause should be changed to display the desired results. C、The operator in the WHERE clause should be changed to display the desired results. D、The WHERE clause should be changed to use an outer join to display the desired results.

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第6题

[单选题] The EMP table contains these columns: LAST_NAME VARCHAR2 (25) SALARY NUMBER (6,2) DEPARTMENT_ID NUMBER (6) You need to display the employees who have not been assigned to any department. You write the SELECT statement: SELECT LAST_NAME, SALARY, DEPARTMENT_ID FROM EMP WHERE DEPARTMENT_ID = NULL; What is true about this SQL statement ?（）

A、The SQL statement displays the desired results. B、The column in the WHERE clause should be changed to display the desired results. C、The operator in the WHERE clause should be changed to display the desired results. D、The WHERE clause should be changed to use an outer join to display the desired results.

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第7题

[单选题] （）conveys a signal of desired rudder angle from the bridge and activates the power unit and transmission system unit the desired angle is reached.

A、The control equipment B、The power unit C、The transmission system D、The follow-up mechanism

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第8题

[单选题] The EMPLOYEES table contains these columns: You need to write a query that will produce these results: 1. Display the salary multiplied by the commission_pct. 2. Exclude employees with a zero commission_pct. 3. Display a zero for employees with a null commission value. Evaluate the SQL statement: What does the statement provide?（）

A、All of the desired results B、Two of the desired results C、One of the desired results D、An error statement

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第9题

[单选题] A customer would like to configure an uncapped LPAR so that it can use 2 to 8 cores depending on the workload characteristics. With SMT4 enabled, what is the least amount of processing resources which can be configured for the LPAR?（）

A、8 desired processing units and 8 desired virtual processors B、2 desired processing units and 8 desired virtual processors C、8 desired processing units and 32 desired virtual processors D、2 desired processing units and 32 desired virtual processors

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第10题

[单选题] All of the followings are the detainable deficiencies under the SOLAS Convention expert（）.

A、Failure of proper operation of propulsion and other essential machinery, as well as electrical installation B、Failure of the proper operation of the main and auxiliary steering gear C、Failure of engineering watch arrangements to confirm to the requirements specified for the ship by Administration D、Failure of the proper operation of emergency generator, lighting, batteries and switches

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The desirable properties of a marine fuel oil should include（）

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