When we enter a URL such as google.com then It searches through local DNS cache, if nothing is there, it queries the ISP’s DNS server to resolve the URL.
You run a super wing-ding diagnostic program on your PC, and it reports that your hard drive, microprocessor, RAM, and video card have seen better days. To resolve this problem you should A. replace each part one at a time, rerunning the diagnostic before replacing the next part. B. check to see if you have a software problem C. replace everything at once and rerun the diagnostic D. get another copy of the diagnostic program E. run an exhaustive memory check
During the boot process, a system first counts memory from where? A. Expansion memory board B. Video adapter C. System board D. Cache E. None of the above
After you service a laser printer, you notice dirty print. Which of the following would correct the problem. A. Clean the developer tank B. Reset the printer C. Run several blank pages D. Clean the laser diode E. None of the above
What should he used to extinguish a computer fire? A. fire hose B. class a extinguisher C. class c extinguisher D. silver foam water E. None of the above
In ROM BIOS, the acronym BIOS stands for A. Basic Intuitive Output Set B. Basic Input Organizational System C. Basic Input Output System D. Basic Industry Operating System E. None of the above
Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because A. there are a lot more I/O addresses than IRQs. B. the BIOS sometimes has more of a problem controlling IRQs C. I/O addresses cannot conflict D. software tends to correct I/O conflicts E. software tends to mess up IRQs
You have just installed a new internal PCI modem on you desktop. It will not dial out. what is the problem? A. The port speed is set too high B. the modem has not been set up in control panel properties C. the phone line is plugged into the line-in port on the modem card D. the phone line out of the wall is plugged into the phone port on the modem card E. None of the above
What component would most likely cause a "parity error"? A. bad hard disk B. bad controller C. bad RAM D. bad software E. None of the above
Which provides the fastest access to large video files? A. Optical drives B. IDE hard drives C. SCSI hard drives D. EIDE hard drives E. None of the above
What is ospf?
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