Which two statements about Automatic Storage Management （ASM） are true？（） ASM provides mirroring on file by file basis.。 ASM provides automatic load balancing across all ASM disks.。 ASM supports the Oracle database and operating system files.。 ASM can be used to store trace files， alert log files， and the server parameter file （SPFILE）.。
变压器采用从副边向原边折合算法的原则是（）。 保持副边电流I2不变。 保持副边电压为额定电压。 保持副边绕组漏阻抗不变。 保持副边磁通势不变。
Examine the structure of the EMPLOYEES and DEPARTMENTS tables: EMPLOYEESColumn name Data type Remarks EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2 (30) JOB_ID VARCHAR2 (20) SALARY NUMBER MGR_ID NUMBER References EMPLOYEE_ID COLUMN DEPARTMENT ID NUMBER Foreign key to DEPARTMENT ID column of the DEPARTMENTS table DEPARTMENTSColumn name Data type Remarks DEPARTMENT_ID NUMBER NOT NULL, Primary Key DEPARTMENT_NAME VARCHAR2(30) MGR_ID NUMBER References MGR_ID column of the EMPLOYEES table Evaluate this SQL statement: SELECT employee_id, e.department_id, department_name, salary FROM employees e, departments d WHERE e. department_id = d.department_id; Which SQL statement is equivalent to the above SQL statement? （） SELECT employee_id, department_id, department_name, salary FROM employees WHERE department_id IN (SELECT department_id FROM departments);。 SELECT employee_id, department_id, department_name, salary FROM employees NATURAL JOIN departments;。 SELECT employee_id, d.department_id, department_name, salary FROM employees e JOIN departments d ON e.department _ id = d. department_id;。 SELECT employee_id, department_id, department_name, Salary FROM employees JOIN departments USING (e.department_id, d.department_id)。
Which of the following are valid settings for the NLS_COMP parameter?（） ASCII。 ANSI。 BINARY。 MONOLINGUAL。 MULTILINGUAL。
恢复已强直膝关节的活动范围应采用（） 被动运动。 助力运动。 抗阻运动。 手法按摩。 手术治疗。
A server is experiencing performance issues and the SAN could be a potential bottleneck. Which command will show the queue depth of hdisk1？（）
