Páginas: 8 (1856 palabras) Publicado: 28 de noviembre de 2010
IT Essentials Final Exam 1-10 NILAI 100% (bilaberuntung) diatas 90,0 1 A computer user buys a low priced replacement monitor but finds that there is a lot of flicker. The flicker makes the monitor unusable. Which characteristic of a monitor needs to be considered to ensure flicker-free viewing? #refresh rate 2 When analyzing a protocol used on the network, it is discovered that multicast messages are being sent to network devices. Which class of IP addressing is being used to send these messages? #D 3 A technician notices that a data floppy disk is in the floppy disk drive of a co mputer when it is powered on. Which error message could this potentially cause? #invalid system disk 4 What characterizes spoofing? #Making data appear to come from a source other than the actual source. 5 Whena Windows XP computer has completed the POST for each adapter card that has a BIOS, what is the next step during the boot sequence? #BIOS reads the MBR. 6 When calculating the total cost of ownership of a printer it is necessary to con sider the cost of the consumables. Which two consumables are associated with an inkjet printer? (Choose two.) #ink cartridge #paper 7 Which protocol adds securityto remote connections? #SSH 8 What is the purpose of an IRQ? #Request information from the CPU. 9 A wireless LAN is being deployed inside the new park ranger, one room office tha t is located at the highest part of the national park. When the testing was comp leted, the technicians reported that occasionally, the wireless LAN signal is af fected by some type of interference. What are two possiblecauses of the signal distortion? (Choose two.) #the number of wireless devices that are used in the wireless LAN #the large number of trees that surround the office 10 When installing a service pack or security patches on an operating system, what should be done to protect the system in the event of a faulty or aborted install ation? #Create a restore point. 11

A technician is asked to wire anetwork that supports CSMA/CD. Which architectur e and physical topology should the technician use for supporting this access con trol method? #Ethernet and Star 12 What is the best way to fully ensure that data is unable to be recovered from a hard drive? #shattering the hard drive platters with a hammer 13 A technician is asked to configure the time the system must be idle before the h ard diskspins down on all the Windows-based laptops in the company. The technic ian configured the power options in Windows but it appears to have no effect. Wh ere should the technician look to enable power management? #System Registry 14 A printer has a paper jam. An impatient user has sent multiple print jobs of the same document to this printer. What can be done to remove these print jobs? #Cancel thejobs in the printer queue. 15 ABC Inc. decided to integrate redundancy by connecting multiple hard disks to du plicate the information they store. Which type of adapter will need to be instal led on the servers to accomplish the desired redundancy? #RAID adapter 16 A call center technician has asked a customer to perform a simple operation to f ix a problem on a computer. The customer seemsunable to perform the task. What should the technician do? #Determine whether the customer would prefer to receive the instructions in another form, such as e-mailed, illustrated written instructions. 17 Which two technologies enable printers to be accessed by multiple network users? (Choose two.) #Wi-Fi #Ethernet 18 A user reports that a printer is printing unknown characters on documents. What is apossible solution to this issue? #Uninstall and reinstall the printer driver. 19 Which network device uses a MAC address table to segment the network? #router 20 A technician needs to configure the hard drive on a computer so that there appea rs to be one drive for the operating system and four drives for data from differ ent applications. How can the hard drive be configured to provide this...
Leer documento completo

Regístrate para leer el documento completo.

Conviértase en miembro formal de Buenas Tareas