In NTP, what stratum consists of atomic devices or GPS clocks?

What NIST defined cloud characteristic describes access to services over the network using a Web browser and standard interfaces from any location with a variety of devices including desktop, laptop, and tablet computers?

A. on-demand self-service B. broad network access C. resource pooling D. pay-as-you-go

Larger organizations tend to spend approximately __________ percent of the total IT budget on security.

A. 2 B. 5 C. 11 D. 20