Provide a brief overview of DNS operations.
What will be an ideal response?
DNS operations are split among three components: DNS servers, the DNS protocol, and DNS clients (otherwise known as resolvers). On the Internet,BIND (Berkeley Internet Name Domain) software is the most prevalently used software for DNS servers. Fortunately, almost all modern operating systems include a DNS client to make effective DNS queries. A typical DNS query exchange for a host that exists within the same organization.
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Case-Based Critical Thinking QuestionsCase 6-2You have never created a form before, so you call your friend Sarah for some helpful answers to your questions. Sarah tells you, much to your surprise, that there's a form object that can be used both within and outside a form. Which of the following form objects is it?
A. hidden field B. radio button C. jump menu D. checkbox group
Which of the following functions rounds up away from zero to the number of digits indicated in the function?
A) ROUND B) ROUNDUPZERO C) ROUNDUPAWAY D) ROUNDUP
Which of the following can be concluded as the cause of an interface having a status of admin down/down?
A) There is a speed mismatch between the router and switch. B) The router interface has been configured with the shutdown interface subcommand. C) The neighboring switch port uses port security. D) The router has no cable installed.
?A breakpoint is where different styles are applied to a webpage to cause it to change in a way that makes it easier to read and navigate for a particular situation.
Answer the following statement true (T) or false (F)