You delete content from a file named Speed.doc that is stored in the C:///Data folder. You edit 20 files in this folder over the next two days.  You need to restore the version of the file that had the correct data. You also need to ensure that the other

You own a table called EMPLOYEES with this table structure: EMPLOYEE_ID NUMBER Primary KeyFIRST_NAME VARCHAR2(25)LAST_NAME VARCHAR2(25)HIRE_DATE DATEWhat happens when you execute this DELETE statement? DELETE employees; （）

A. You get an error because of a primary key violation.

B. The data and structure of the EMPLOYEES table are deleted.

C. The data in the EMPLOYEES table is deleted but not the structure.

D. You get an error because the statement is not syntactically correct.

A. rollback

B. delete

C. delete 0

D. rollback 0

Your network contains a DNS server that runs Windows Server 2008 R2.You open the Forwarders settings of the DNS server and discover that the option to add forwarders is disabled.You need to add forwarders to the DNS server.What should you do first？（）

A. Enable BIND secondaries.

B. Delete the (root) zone.

C. Create a GlobalNames zone.

D. Delete all conditional forwarders.

A. You can delete individual statements in a named access list

B. Named access lists require a numbered range from 1000 to 1099.

C. Named access lists must be specified as standard or extended.

D. You can use the ip access-list command to create named access lists.

E. You cannot delete individual statements in a named access list.

F. You can use the ip name-group command to apply named access lists.

Click the Exhibit button and examine the data in the EMPLOYEES table.On the EMPLOYEES table, EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID. The JOB_ID column is a NOT NULL column.Evaluate this DELETE statement:DELETE employee_id, salary, job_idFROM employeesWHERE dept_id = 90;Why does the DELETE statement fail when you execute it?（）

A.There is no row with dept_id 90 in the EMPLOYEES table.

B.You cannot delete the JOB_ID column because it is a NOT NULL column.

C.You cannot specify column names in the DELETE clause of the DELETE statement.

D.You cannot delete the EMPLOYEE_ID column because it is the primary key of the table.

Examine the data in the EMPLOYEES table.On the EMPLOYEES table, EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID. The JOB_ID column is a NOT NULL column.Evaluate this DELETE statement:Why does the DELETE statement fail when you execute it?（）

A. There is no row with dept_id 90 in the EMPLOYEES table.

B. You cannot delete the JOB_ID column because it is a NOT NULL column.

C. You cannot specify column names in the DELETE clause of the DELETE statement.

D. You cannot delete the EMPLOYEE_ID column because it is the primary key of the table.

You are the network administrator for The network contains Windows Server 2003 computers and Windows XP Professional computers.You install Software Update Services (SUS) on a server named TestKingSrv.You scan the client computers to find out if any current hotfixes are installed. You notice that no client computers have been updated during the past seven days. You are unable to access the synchronization logs on TestKingSrv.You need to ensure that SUS is functioning properly.What should you do on TestKingSrv?（）

A. Delete the History_Approve.xml file and restart the computer.

B. Delete the Aucatalog.cab file and restart the computer.

C. Restart the Background Intelligent Transfer Service (BITS).

D. Restart all IIS-related services.

You are creating a Windows Communication Foundation (WCF) service that implements operations in a RESTful manner. You need to add a delete operation. You implement the delete method as follows:void DeleteItems(string id);You need to configure WCF to call this method when the client calls the service with the HTTP DELETE operation. What should you do?（）

A. Add the WebInvoke(UriTemplate="/Items/{id}", Method="DELETE") attribute to the operation

B. Add the HttpDelete atribute to the operation

C. Replace the string parameter with a RemovedActivityAction parameter

D. Replace the return type with RemovedActivityAction.

You can （ ）a file when you no longer need it.

A. renameB. moveC. copyD. delete