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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You can jump to any specific point on the Timeline by clicking a(n) ________ on the literal timeline at the far right side of the page
Fill in the blank(s) with correct word
What is a syntax for performing a CROSS JOIN?
a. Using the keywords CROSS JOIN b. Separating the table names with a comma in the FROM clause c. Both using CROSS JOIN and separating the table names with a comma d. Neither using CROSS JOIN nor separating the table names with a comma