Public key infrastructure (PKI) depends heavily on certificate authorities (CA) to instill trust in transactions taking place across the public Internet. CAs are often referred to as "trusted" authorities, but how can a user genuinely confirm whether an authority should be trusted? What does "trust" mean when referring to a certificate authority? How would you go about determining whether a CA can or should be trusted?

What best describes a career pathway in a lodging career? a worker starts out as an amusement attendant, then becomes a recreation worker, and then becomes a gaming worker within five years. a worker starts out as a bell hop, then becomes a night clerk, and then becomes a hotel manager within five years. a worker starting out as a tour guide, then becomes a travel clerk, and then becomes a travel agent within five years. a worker starts out as a server, then becomes a food preparer, and then becomes a head chef within five years.

For her science class, elaine is creating a presentation on weather in the united states. she wants to make the presentation beautiful and interesting by drawing simple cloud or wave shapes. which is the best way for elaine to draw these shapes?

How do we use the sumif formula (when dealing with different formats) ?