An important aspect of mobile design is optimizing a site's performance under static network conditions.?

Discuss the potential advantages and drawbacks in the use of an X.500 directory service in place of DNS and the Internet mail delivery programs. Sketch the design of a mail delivery system for an internetwork in which all mail users and mail hosts are registered in an X.500 database.

What will be an ideal response?

If you enter a command and want to terminate its execution before it is finished, what key press should you use?

A. Ctrl+C B. Ctrl+V C. Ctrl+B D. Ctrl+X