Suppose a broadcasts an arp query "who-has b? ", receives b’s response, and proceeds to send b a regular ipv4 packet. if b now wishes to reply, why is it likely that a will already be present in b’s arp cache? identify a circumstance under which this can fail.

The fourth generation of computers emerged between 1970s and 1980s. which technological advancement brought about this generation of computers? which computer architecture was used most in this generation?

Take a critical look at three gui applications you have used—for example, a spreadsheet, a word-processing program, and a game. describe how well each conforms to the gui design guidelines listed in this chapter.

What are two ways to access the options for scaling and page orientation? click the home tab, then click alignment, or click the file tab. click the file tab, then click print, or click the page layout tab. click the page layout tab, or click the review tab. click the review tab, or click the home tab?