单选题Select the action that results from executing these commands.（）Switch(config-if)# switchport port-securitySwitch(config-if)# switchport port-security mac-address stickyAA dynamically learned MAC address is saved in the startup-configuration file.BA dynamically learned MAC address is saved in the running-configuration file.CA dynamically learned MAC address is saved in the VLAN database.DStatically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.EStatically configured MAC addresses are saved in the running-configuration file if frames from that address are received.
单选题
Select the action that results from executing these commands.（）Switch(config-if)# switchport port-securitySwitch(config-if)# switchport port-security mac-address sticky
A
A dynamically learned MAC address is saved in the startup-configuration file.
B
A dynamically learned MAC address is saved in the running-configuration file.
C
A dynamically learned MAC address is saved in the VLAN database.
D
Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.
E
Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.
参考解析
解析：
暂无解析
相关考题：
Your network contains a server named Server1 that runs Windows Server 2008 R2.You need to ensure that an administrator is notified by e-mail if the Event Viewer logs any error.What should you do from the Event Viewer console?（）A. Create a custom view, and then click the Filter Current Custom View action.B. Create a custom view, and then click the Attach Task to This Custom View action.C. From the System log, click the Filter Current Log action.D. From the System log, select an Error event, and then click the Attach Task to This Event action.
You have configured a Ezonexam switch as shown below:Ezonexam3(config-if) switchport port-securityEzonexam3(config-if) switchport port-security mac-address stickySelect the action below that results from executing these commands.A. A dynamically learned MAC address is saved in the VLAN database.B. A dynamically learned MAC address is saved in the startup-configuration file.C. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.D. A dynamically learned MAC address is saved in the running-configuration file.E. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.F. None of the above
The PRODUCTS table has these columns:PRODUCT_ID NUMBER(4)PRODUCT_NAME VARCHAR2(45)PRICE NUMBER(8,2)Evaluate this SQL statement:SELECT *FROM PRODUCTSORDER BY price, product _ name;What is true about the SQL statement? （）A. The results are not sorted.B. The results are sorted numerically.C. The results are sorted alphabetically.D. The results are sorted numerically and then alphabetically.
Evaluate this SQL statement:SELECT ename, sal, 12* sal+100 FROM emp;The SAL column stores the monthly salary of the employee. Which change must be made to the abovesyntax to calculate the annual compensation as monthly salary plus a monthly bonus of $100, multiplied by 12? （）A. No change is required to achieve the desired results.B. SELECT ename, sal, 12* (sal+100) FROM emp;C. SELECT ename, sal, (12* sal)+100 FROM emp;D. SELECT ename, sal +100,*12 FROM emp;
To view the results of a manual SQL Tuning Advisor task, which steps should the DBA take?() A. From the Advisor Central home page, select the tuning task from the Advisor Tasks section.B. From Advisor Central, choose SQL Advisors, SQL Tuning Advisors, Manual Tuning Task Results.C. From Advisor Central, choose SQL Advisors, Manual SQL Tuning Advisors, Tuning Task Results.D. Either B or C
Which two are attributes of ／SQL*Plus? () A. /SQL*Plus commands cannot be abbreviated.B. /SQL*Plus commands are accesses from a browser.C. /SQL*Plus commands are used to manipulate data in tables.D. /SQL*Plus commands manipulate table definitions in the database.E. /SQL*Plus is the Oracle proprietary interface for executing SQL statements.
The EMP table has these columns:ENAME VARCHAR2(35)SALARY NUMBER(8,2)HIRE_DATE DATEManagement wants a list of names of employees who have been with the company for more than five years. Which SQL statement displays the required results? （）A. SELECT ENAME FROM EMP WHERE SYSDATE-HIRE_DATE 5;B. SELECT ENAME FROM EMP WHERE HIRE_DATE-SYSDATE 5;C. SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)/365 5;D. SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)*/365 5;
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 EMPWHERE 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.
与“SELECT*FROM教师表INTO DBF A”等价的语句是A．SELECT*FROM教师表TO DBF AB．SELECT*FROM教师表TO TABLE AC．SELECT*FROM教师表INTO TABLE AD．SELECT*FROM教师表INTO A
（ 30 ）与 “ SELECT * FROM 教师表 INTO DBF A ” 等价的语句是A ） SELECT * FROM 教师表 TO DBF AB ） SELECT * FROM 教师表 TO TABLE AC ） SELECT * FROM 教师表 INTO TABLE AD ） SELECT * FROM 教师表 INTO A
which one of the following statements would lee include in an agent to limit the documents processed by the agent to those for which the value of the type field is "action"? （）A、FIELD Type :="action" B、SELECT Type ="action" C、SELECT Type :="action " D、@if (type="action";@success;@failure)
You need to display the last names of those employees who have the letter "A" as the second character in their names.Which SQL statement displays the required results?（）A、SELECT last_name FROM EMP WHERE last_ name LIKE '_A%';B、SELECT last_name FROM EMP WHERE last name ='*A%'C、SELECT last_name FROM EMP WHERE last name ='_A%';D、SELECT last_name FROM EMP WHERE last name LIKE '*A%'
下面哪条语句可以取出薪水最高的前三个人：（）A、SELECT * FROM （SELECT * FROM EMPLOYEES ORDER BY SALARY ）；B、SELECT * FROM （SELECT * FROM EMPLOYEES ORDER BY SALARY ） WHERE ROWNUM=3；C、SELECT * FROM （SELECT * FROM EMPLOYEES ORDER BY SALARY DESC） WHERE ROWNUM=3；D、SELECT * FROM EMPLOYEES WHERE ROWNUM=3 ORDER BY SALARY DESC；
下列命令不能执行的是（）。A、SELECT * FROM [select]B、SELECT * FROM @MyTableC、SELECT * FROM [MyTable]D、SELECT * FROM MyTable
Select the action that results from executing these commands.（）Switch(config-if)# switchport port-securitySwitch(config-if)# switchport port-security mac-address stickyA、A dynamically learned MAC address is saved in the startup-configuration file.B、A dynamically learned MAC address is saved in the running-configuration file.C、A dynamically learned MAC address is saved in the VLAN database.D、Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.E、Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.
A non-root user can run rsh commands from serverA to serverB， but attempts to run rsh commands by the root user return with a permission error message. What action will resolve the problem？（）A、Add root user to the /etc/hosts.equiv on serverB .B、Create $HOME/.rhosts file for the root user on serverB .C、Restart the rshd daemon with root enabled option on serverB .D、Add entry to allow root user from serverA to the /etc/hosts.allow on serverB .
Through which action are Currency Codes created？ （）A、 select New Row in Currency Codes applicationB、 select Action Currency Codes in the Database Configuration applicationC、 select an Organization in the Currency Codes application and add a new rowD、 select the Base Currency lookup in the Organizations application and add a new row
Given the following two tables: TAB1 C1 C2 A 11 B 12 C 13 TAB2 CX CY A 21 C 22 D 23 The following results are desired: C1 C2 CX CY A 11 A 21 C 13 C 22 -- --D 23 Which of the following queries will yield the desired results?（）A、SELECT * FROM tab1 INNER JOIN tab2 ON c1=cxB、SELECT * FROM tab1 LEFT OUTER JOIN tab2 ON c1=cxC、SELECT * FROM tab1 FULL OUTER JOIN tab2 ON c1=cxD、SELECT * FROM tab1 RIGHT OUTER JOIN tab2 ON c1=cx
To view the results of a manual SQL Tuning Advisor task, which steps should the DBA take?（）A、From the Advisor Central home page, select the tuning task from the Advisor Tasks section.B、From Advisor Central, choose SQL Advisors, SQL Tuning Advisors, Manual Tuning Task Results.C、From Advisor Central, choose SQL Advisors, Manual SQL Tuning Advisors, Tuning Task Results.D、Either B or C
The EMP table has these columns: ENAME VARCHAR2(35) SALARY NUMBER(8,2) HIRE_DATE DATE Management wants a list of names of employees who have been with the company for more than five years. Which SQL statement displays the required results?（）A、SELECT ENAME FROM EMP WHERE SYSDATE-HIRE_DATE 5;B、SELECT ENAME FROM EMP WHERE HIRE_DATE-SYSDATE 5;C、SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)/365 5;D、SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)*/365 5;
单选题Through which action are Currency Codes created？ （）A select New Row in Currency Codes applicationB select Action Currency Codes in the Database Configuration applicationC select an Organization in the Currency Codes application and add a new rowD select the Base Currency lookup in the Organizations application and add a new row
多选题Which two are attributes of /SQL*Plus? （）A/SQL*Plus commands cannot be abbreviated.B/SQL*Plus commands are accesses from a browser.C/SQL*Plus commands are used to manipulate data in tables.D/SQL*Plus commands manipulate table definitions in the database.E/SQL*Plus is the Oracle proprietary interface for executing SQL statements.
单选题The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR;（）AYou obtain the results retrieved from the public synonym HR created by the database administrator.BYou obtain the results retrieved from the HR table that belongs to your schema.CYou get an error message because you cannot retrieve from a table that has the same name as a public synonym.DYou obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.EYou obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
单选题To view the results of a manual SQL Tuning Advisor task, which steps should the DBA take?（）AFrom the Advisor Central home page, select the tuning task from the Advisor Tasks section.BFrom Advisor Central, choose SQL Advisors, SQL Tuning Advisors, Manual Tuning Task Results.CFrom Advisor Central, choose SQL Advisors, Manual SQL Tuning Advisors, Tuning Task Results.DEither B or C
多选题Which two are attributes of iSQL*Plus? （）AiSQL*Plus commands cannot be abbreviated.BiSQL*Plus commands are accessed from a browser.CiSQL*Plus commands are used to manipulate data in tables.DiSQL*Plus commands manipulate table definitions in the database.EiSQL*Plus is the Oracle proprietary interface for executing SQL statements.
单选题Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them?（）AThe two statements produce identical results.BThe second statement returns a syntax error.CThere is no need to specify DESC because the results are sorted in descending order by default.DThe two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
单选题The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement? （）AThe results are not sorted.BThe results are sorted numerically.CThe results are sorted alphabetically.DThe results are sorted numerically and then alphabetically.
单选题A user named Arren is executing this query： select table_name，operation，undo_sql from flashback_transaction_query t， （select versions_xid as xid from employees versions between scn minvalue and maxvalue where employee_id = 123） e where t.xid = e.xid； When the query runs，he receives an ORA-01031： insufficient privileges error. Since the user owns the employees table，you know that it is not the problem. Which of the following SQL statements will correct this problem？（）A GRANT SELECT ANY TRANSACTION TO ARRENB GRANT SELECT ON FLASHBACK_TRANSACTION_QUERY TO ARRENC GRANT SELECT_ANY_TRANSACTION TO ARREND GRANT FLASHBACK TO ARRENE GRANT SELECT ANY VIEW TO ARREN