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【单选题】

Where should you install the spare line module in a redundancy group?（）

A、last slot in the chassis

B、first slot in the chassis

C、lowest numbered slot in thegroup

D、highest numbered slot in the group

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更多“ Where should you install the spare line module in a redundancy group?（）”相关的问题
第1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2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3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 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5题
[单选题] You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.

A、one blast，4 to 6 seconds in duration  B、three blasts，4 to 6 seconds in duration  C、one continuous blast until you are able to see around the bend  D、one blast，8 to 10 seconds in duration  

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第6题
[] You need to create a view EMP_VU. The view should allow the users to manipulate the records of only the employees that are working for departments 10 or 20. Which SQL statement would you use to create the view EMP_VU?（） You need to create a view EMP_VU. The view should allow the users to manipulate the records of only the employees that are working for departments 10 or 20. Which SQL statement would you use to create the view EMP_VU?（）

A、A. CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  B、B. CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH READ ONLY;  C、C. CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH CHECK OPTION;  D、D. CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  E、E. CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) NO UPDATE;  

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第7题
[单选题] You need to create a view EMP_VU. The view should allow the users to manipulate the records of only the employees that are working for departments 10 or 20.Which SQL statement would you use to create the view EMP_VU?（）

A、CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  B、CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH READ ONLY;  C、CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH CHECK OPTION;  D、CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  E、CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) NO UPDATE;  

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第8题
[] You need to create a view EMP_VU. The view should allow the users tomanipulate the records of only the employees that are working for departments 10 or 20. Which SQL statement would you use to create the view EMP_VU?（）

A、A.CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  B、B.CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH READ ONLY;  C、C.CREATE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) WITH CHECK OPTION;  D、D.CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20);  E、E.CREATE FORCE VIEW emp_vu AS SELECT * FROM employees WHERE department_id IN (10,20) NO UPDATE;  

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第9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 ?（） 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、A.The SQL statement displays the desired results.  B、B.The column in the WHERE clause should be changed to display the desired results.  C、C.The operator in the WHERE clause should be changed to display the desired results.  D、D.The WHERE clause should be changed to use an outer join to display the desired results.  

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