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单选题
A technician wants to prevent employees from installing software on company computers. In which of the following groups should the employee accounts be placed?（）rs
A
Power Users
B
Users
C
Guests
D
Administrato
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Examine the data in the EMPLOYEES table:Which three subqueries work? ()
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Examine the data in the EMPLOYEES table:LAST_NAME DEPARTMENT_ID SALARYGetz 10 3000Davis 20 1500Bill 20 2200Davis 30 5000...Which three subqueries work? ()
A. SELECT * FROM employees where salary (SELECT MIN(salary) FROM employees GROUP BY department _ id);B. SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);C. SELECT distinct department_id FROM employees Where salary ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);D. SELECT department_id FROM employees WHERE SALARY ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);E. SELECT last_name FROM employees Where salary ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);F. SELECT department_id FROM employees WHERE salary ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));
考题
Click the Exhibit button and examine the data in the EMPLOYEES table.Which three subqueries work? ()
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考题
Which of the following utilities would a technician use to prevent a service from starting duringsystem startup?()
A. Event ViewerB. System File CheckerC. MSCONFIGD. Task Manager
考题
An administrator is setting up a network and would like to prevent users from having the ability toplug their PC into the network to receive an IP address.Which of the following addressing schemes should the technician use?（）A.NATB.DynamicC.SubnettingD.Static
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A technician wants to prevent employees from installing software on company computers. In which of the following groups should the employee accounts be placed?（）rsA、Power UsersB、UsersC、GuestsD、Administrato
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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；
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A technician purchases a new 120 GB IDE hard disk to use in an old server as a swap drive. After adding the drive to the server， the technician discovers that the operating system does not detect the drive. After rebooting the server， the technician notices the drive is missing from POST and comes to the conclusion that the BIOS needs to be updated. The technician downloads the latest version of the BIOS update from the manufacturer website. Which action should the technician take next？（）A、 backup the BIOS configuration to use laterB、 install the BIOS update from a command promptC、 create a bootable floppy and copy the BIOS update tools to the floppyD、 read the manufacturer’s guidelines and recommendations on installing the update
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A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?（）A、BPDUB、Port securityC、RSTPD、STPE、VTPF、Blocking mode
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Which of the following utilities would a technician use to prevent a service from starting duringsystem startup?（）A、Event ViewerB、System File CheckerC、MSCONFIGD、Task Manager
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A user states that the wireless router keeps rebooting while the power to the other equipment stays on. Which of the following should the technician perform to prevent users from rebooting the router?（）A、Change the default administrator passwordB、Change the IP range of the wireless networkC、Hide the SSIDD、Disable WEP
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Mike, a technician, is installing a wireless router for a client. Which of the following is MOST important when installing a wireless router?（）A、LocationB、DCPAC、SSIDD、Number of client machines
考题
A technician is dispatched to install additional RAM in a computer. The technician unplugs thesystem from the power source, and removes the cover of the PC. Which of the following shouldthe technician do NEXT?（）A、Update the BIOS for compatibility.B、Put on an ESD strap.C、Use an anti-static bag to hold the RAM while installing.D、Clean out the PC with compressed air.
考题
A technician is installing a basic router for a SOHO network. After installing the router the PCs connected to it are not able to acquire an IP address. Which of the following did the technician fail to configure correctly？（）A、DHCPB、DNSC、WINSD、NAT
考题
A technician is trying to load a device driver directly from the manufacturer’s CD for a PCI NIC. The operating system is Windows Vista. Windows refuses to accept the driver. Which of the following is the MOST likely cause of this problem?（）A、The driver CD is for Windows XP only.B、The technician needs to initialize the NIC first within Device Manager before installing a driver.C、The driver on the CD is not digitally signed.D、The driver is corrupt.
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A coworker has reported that someone has engaged in prohibited activity. The supervisor hasasked the technician to quarantine the PC until police arrive. Which of the following should the technician do?（）A、Allow the user to continue workingB、Check for virusesC、Re-image the hard driveD、Document time/date for later referenceE、Prevent users from accessing the PCF、Turn off PC
考题
A customer wants to have employees work from remote locations as well as in the office. All communications must be secure and files must be protected from access by unauthorized people. The employee’s applications （database inserts and reads） are only accessed with a web browser. Which of the following capabilities is necessary？（）A、SSLB、PGPC、File encryption programD、Public key encryption
考题
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?（）A、DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);B、DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);C、DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');D、DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');
考题
Examine the data in the EMPLOYEES table: LAST_NAME DEPARTMENT_ID SALARY Getz 10 3000 Davis 20 1500 Bill 20 2200 Davis 30 5000 ... Which three subqueries work? （）A、SELECT * FROM employees where salary (SELECT MIN(salary) FROM employees GROUP BY department _ id);B、SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);C、SELECT distinct department_id FROM employees Where salary ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);D、SELECT department_id FROM employees WHERE SALARY ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);E、SELECT last_name FROM employees Where salary ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);F、SELECT department_id FROM employees WHERE salary ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));
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单选题Care and cleanliness are required when installing diesel fuel filters （）.A
to prevent the fuel system from becoming air-houndB
to prevent the fuel system becoming clogged with dirty particlesC
both of the aboveD
to prevent the lubricating oil from leaking out of the filter element
考题
单选题An administrator wants to prevent users from plugging in their personal laptops and accessing the Internet without a member of the IT staff configuring the machine first. Which of the following would MOST likely be installed?（）A
Multilayer switchB
CSUC
Proxy serverD
IDS
考题
多选题Examine the data in the EMPLOYEES table: Which three subqueries work? （）ASELECT * FROM employees where salary (SELECT MIN(salary) FROM employees GROUP BY department _ id);BSELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);CSELECT distinct department_id FROM employees Where salary ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);DSELECT department_id FROM employees WHERE SALARY ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);ESELECT last_name FROM employees Where salary ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);FSELECT department_id FROM employees WHERE salary ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));
考题
单选题A technician purchases a new 120 GB IDE hard disk to use in an old server as a swap drive. After adding the drive to the server， the technician discovers that the operating system does not detect the drive. After rebooting the server， the technician notices the drive is missing from POST and comes to the conclusion that the BIOS needs to be updated. The technician downloads the latest version of the BIOS update from the manufacturer website. Which action should the technician take next？（）A
backup the BIOS configuration to use laterB
install the BIOS update from a command promptC
create a bootable floppy and copy the BIOS update tools to the floppyD
read the manufacturer’s guidelines and recommendations on installing the update
考题
单选题A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?（）A
BPDUB
Port securityC
RSTPD
STPE
VTPF
Blocking mode
考题
单选题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? （）A
DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);B
DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);C
DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = ('Carrey')'D
DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE last_ name = ('Carrey')'
考题
单选题An administrator is setting up a network and would like to prevent users from having the ability to plug their PC into the network to receive an IP address. Which of the following addressing schemes should the technician use?（）A
NATB
DynamicC
SubnettingD
Static
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