List and describe two advantages of a proxy server.
What will be an ideal response?
Increased speed - because proxy servers can cache material, a request can be served from the cache instead of retrieving the Web page through the Internet. Reduced costs - a proxy server can reduce the amount of bandwidth usage because of the cache. Improved management - a proxy server can block specific Web pages and/or entire Web sites. Some proxy servers can block entire categories of Web sites such as entertainment, pornography, or gaming sites. Stronger security - acting as the intermediary, a proxy server can protect clients from malware by intercepting it before it reaches the client. In addition, a proxy server can hide the IP address of client systems inside the secure network. Only the proxy server's IP address is used on the open Internet.
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Describe how the closing of the connection is different from Step 4.
What will be an ideal response?
Apply the appropriate transformations described in Section 10.4.2 to the associations below. Assume that all associations are bidirectional, but that the aggregation associations do not change after each object has been created. In other words, the creator of each class must be modified so that aggregations are initialized during the creation of each object. Write the source code needed to manage the associations, including class, field, and method declarations, method bodies, and visibility.
What will be an ideal response?
To insert a picture into a slide, you click the Picture button in the:
A) Pictures group on the Design tab. B) Illustrations group on the Design tab. C) Pictures group on the Insert tab. D) Illustrations group on the Insert tab.
To open the Number Format Options dialog box, click the Number group dialog box launcher on the Insert tab.
Answer the following statement true (T) or false (F)