What are some of the functions performed by proxy servers?
What will be an ideal response?
Proxy servers perform various functions in an organization's network.* Proxy servers restrict users from accessing specific Web sites using Internet access rules, such as those that a firewall would enforce.* Proxy servers mask the IP of the users' PCs within the network from outside connections.* Proxy servers maintain logs of the requests and the details of users that are accessing the Internet.* Proxy servers also maintain a cache of the sites that users on the network have visited.For example,when a request is made for a Web site, the proxy then searches the cache for its availability. If there happens to be a cache entry available for that Web site, the proxy does not send a request on the Internet. Instead, it displays the site from the cache itself.
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A client reports that half of the office is unable to access a shared resource. Which of the following should be used to troubleshoot the issue?
A. Data backups B. Network diagrams C. Baseline information D. Vendor documentation
Which of the following gives the number of elements in the array int r[ 10 ]?
a. sizeof r b. sizeof ( *r ) c. sizeof r / sizeof ( int ) d. sizeof ( *r ) / sizeof ( int )