Choose the best answer by writing the item number (1, 2, 3, or 4) in the blank box. What is the fundamental security hypothesis of a digital certification hierarchy? The data formats must be specified in Abstract Syntax Notation One (ASN.1).
All certificates that were revoked but have not yet expired are entirely contained in the CRL.
Certification path constraints must never refer to cross certification.
The root CA certificate is obtained through an extra-cryptographically secure, trusted channel by all interested parties.

i've had the same problem. i generally just ignore it, as a ton of these "verified answers" are completely wrong.

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt