The reliability of a system with n redundant components and a reliability of r is _________

Cloud Computing - Quiz(MCQ)

1+(1-r)n

1-(1+r)n

1-(1-r)n

All of the Above

Correct Answer : 1-(1-r)n

Explanation : Therefore, when a datacenter achieves a reliability of 99 percent, two redundant data centers have a reliability of 99.99 percent (four nines) and three redundant data centers can achieve a reliability of 99.9999 percent (six nines).

Recently Updated in Cloud Computing Questions

The IRC protocol and the XMPP IM and VoIP protocol are examples of ______ push technologies.

B2B

C2C

P2P

None of the Above

Correct Answer : P2P

Explanation : The XMPP PubSub extension is how Apple creates a push service for MobileMe.

Which of the following push technology is similar to SMTP?

Pull-IMAP

Push-IMAP

Push-POP3

All of the Above

Correct Answer : Push-IMAP

Explanation : Push-IMAP stands for the Push extensions for Internet Message Access Protocol.

Which of the following system is constantly polling locations to update them and recalibrating data points to improve accuracy over time?

XPS

GPS

WPS

All of the Above

Correct Answer : XPS

Explanation : The system uses a large reference database of Wi-Fi access points and cell tower IDs, raw position data from each location source (a signal), and the company’s proprietary algorithm to locate the device.