What are some steps you should take before performing an upgrade on a mission-critical server? When should you use rpm –i instead of rpm –U?
What will be an ideal response?
Perform the upgrade on an identically configured spare system and see what
breaks and how to fix it. In particular, look for .rpmsave files and see which
configuration information needs to be changed manually. Before you begin
the upgrade, make a complete backup copy of the server.
Use the –i option when you install a new kernel. The –i option installs a ker-
nel that does not overwrite the old one as –U would. Having the old kernel
gives you a backup in case the new kernel fails.
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Fill in the blank(s) with the appropriate word(s).
In the case of _______ , messages are not sent directly from sender to receiver but rather are sent to a shared data structure consisting of queues that can temporarily hold messages.
Fill in the blank(s) with the appropriate word(s).
A list of credits at the end of a movie identifies the people who worked on the movie but not sources of information
Indicate whether the statement is true or false
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Indicate whether the statement is true or false