第1题:
A.putPoker.jarindirectory/stuff/java,andsettheCLASSPATHtoinclude/stuff/java
B.putPoker.jarindirectory/stuff/java,andsettheCLASSPATHtoinclude/stuff/java/*.jar
C.putPoker.jarindirectory/stuff/java,andsettheCLASSPATHtoinclude/stuff/java/Poker.jar
D.putPoker.jarindirectory/stuff/java/games/cards,andsettheCLASSPATHtoinclude/stuff/java
第2题:
Which statement is True?
A.The Port State Control Officer has no right to check a SSP
B.The Master has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on board
C.The Confidential part of a SSP can never be subject to non-flag State
D.Even the flag State has no right to check the SSP thoroughly
第3题:
What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?()
A.A check constraint on the EMPLOYEE table
B.A unique constraint on the EMPLOYEE table WORKDEPT column
C.A foreign key reference from the DEPARTMENT tables DEPTNO column to the WORKDEPT column of the EMPLOYEE table
D.A foreign key reference from the EMPLOYEE tables WORKDEPT column to the DEPTNO column of the DEPARTMENT table
第4题:
评估EMPLOYEE表的结构: EMPLOYEE_IDNUMBER(9) LAST_NAMEVARCHAR2(25) FIRST_NAMEVARCHAR2(25) DEPARTMENT_IDNUMBER(9) MANAGER_IDNUMBER(9) SALARYNUMBER(7,2) EMPLOYEE_ID列当前包含500个雇员标识号。业务需求已发生变化,您需要允许用户在标识值中包含文本字符。应该使用哪条语句来更改该列的数据类型()
第5题:
What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?()
第6题:
A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command: java games.cards.Poker What allows the user to do this?()
第7题:
Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables: EMPLOYEES EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE NEW_EMPLOYEES EMPLOYEE_ID NUMBER Primary Key NAME VARCHAR2 (60) Which DELETE statement is valid?()
第8题:
You create a tabular employee report and are concerned about readability because the employee records are very close together. What is the best way to increase the amount of white space between the records?()
第9题:
means that one can ignore other people’s criticism
means that one can impose his preferences on others
doesn’t mean that one has the right to do things at will
doesn’t mean that one has the right to charge others without evidence
第10题:
ALTER TABLE employee MODIFY(employee_id VARCHAR2(9))
ALTER TABLE employee REPLACE(employee_id VARCHAR2(9))
ALTER employee TABLEMODIFY COLUMN(employee_id VARCHAR2(15))
您不能修改EMPLOYEE_ID列的数据类型,因为该表不为空
第11题:
passed stuff
stuff passed
passed An AssertionError is thrown with the word “stuff” added to the stack trace.
passed An AssertionError is thrown without the word “stuff” added to the stack trace.
passed An AssertionException is thrown with the word “stuff” added to the stack trace.
passed An AssertionException is thrown without the word “stuff” added to the stack trace.
第12题:
All of the assert statements are used appropriately.
Only the assert statement on line 31 is used appropriately.
The assert statements on lines 29 and 31 are used appropriately.
The assert statements on lines 26 and 29 are used appropriately.
The assert statements on lines 29 and 33 are used appropriately.
The assert statements on lines 29, 31, and 33 are used appropriately.
The assert statements on lines 26, 29, and 31 are used appropriately.
第13题:
Click the Exhibit button and examine the data in the EMPLOYEES and DEPARTMENTS tables.You want to retrieve all employees‘ last names, along with their managers‘ last names and their department names. Which query would you use?()
A.SELECT last_name, manager_id, department_name FROM employees e FULL OUTER JOIN departments d ON (e.department_id = d.department_id);
B.SELECT e.last_name, m.last_name, department_name FROM employees e LEFT OUTER JOIN employees m on ( e.manager_id = m.employee_id) LEFT OUTER JOIN departments d ON (e.department_id = d.department_id);
C.SELECT e.last_name, m.last_name, department_name FROM employees e RIGHT OUTER JOIN employees m on ( e.manager_id = m.employee_id) LEFT OUTER JOIN departments d ON (e.department_id = d.department_id);
D.SELECT e.last_name, m.last_name, department_name FROM employees e LEFT OUTER JOIN employees m on ( e.manager_id = m.employee_id) RIGHT OUTER JOIN departments d ON (e.department_id = d.department_id);
E.SELECT e.last_name, m.last_name, department_name FROM employees e RIGHT OUTER JOIN employees m on ( e.manager_id = m.employee_id) RIGHT OUTER JOIN departments d ON (e.department_id = d.department_id);
F.SELECT last_name, manager_id, department_name FROM employees e JOIN departments d ON (e.department_id = d.department_id) ;
第14题:
Medical care reform has become this country's most important public health _____.
(A) question (B) stuff (C) matter (D) issue
选D
医疗卫生改革已经成为这个国家最重要的公共健康问题
public issue习惯性搭配,指公共问题
第15题:
public class AssertStuff { public static void main(String [] args) { int x= 5; int y= 7; assert (x> y): “stuff”; System.out.println(”passed”); } } And these command line invocations:java AssertStuff java -ea AssertStuff What is the result?()
第16题:
A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command: java games.cards.Poker What allows the user to do this?()
第17题:
23.int z=5; 24. 25. public void stuff1(int x) { 26. assert (x> 0); 27. switch(x) { 28. case 2: x= 3; 29. default: assert false; } } 30. 31. private void stuff2(int y) { assert (y < 0); } 32. 33. private void stuff3() { assert (stuff4O); } 34. 35. private boolean stuff4() { z = 6; return false; } Which is true?()
第18题:
A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command:java games.cards. Poker What allows the user to do this?()
第19题:
The EMPLOYEES table has six indexes and DML operations are slow. Which command begins monitoring the EMPLOYEE_IDX_FK index to determine whether it has been used by an execution plan?()
第20题:
DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);
DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);
DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');
DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');
第21题:
第22题:
ALTER TABLE employees monitor index employee_idx_fk;
ALTER INDEX employee_idx_fk monitoring on;
ALTER TABLE employees monitor all indexes;
ALTER INDEX employee_idx_fk monitoring usage;
第23题:
第24题:
In the layout model increase the size of the employee record fields.
In the report wizard increase the display width values of the employee record fields.
In the property palette increase the size of the repeating frame surrounding the employee records.
In the life previewer, high light a field, click on the parent frame icon and make the frame bigger verticall.