Mean Time Between Failures (MTBF), Mean Time To Replacement/Repair (MTTR), and Mean Time To Failure (MTTF) are useful metrics for evaluating the reliability and availability of a storage resource. Explore these concepts by answering the questions about devices with the following metrics: MTTF: 3 Years MTTR: 1 Day a) Calculate the MTBF for each of the devices in the table. b) Calculate the availability for each of the devices in the table. c) What happens to availability as the MTTR approaches 0? Is this a realistic situation? d) What happens to availability as the MTTR gets very high, i.e., a device is difficult to repair? Does this imply the device has low availability?

Question 154 of 254

For outbound data transfers, data transfer pricing is based on availability zones.

Select Yes if the statement is true. Otherwise, select No.

Select only one answer.

A.  Yes

B.  No

A company is looking to fortify its cybersecurity defenses and is focusing on its network infrastructure. The solution cannot affect the availability of the company's services to ensure false positives do not drop legitimate traffic.

Which of the following would satisfy the requirement?

Options:

A NIDS
B NIPS
C WAF
D Reverse proxy

Question 32 of 252

You have a globally distributed Azure web app named WebApp1 that is configured for Azure Application Insights. WebApp1 pages include JavaScript components.

You need to evaluate the time it takes to receive a response when using a browser to access a specific page of WebApp1.

What should you do?

Select only one answer.

A.  Configure an availability test and enable the option to load dependent parts.

B.  Configure an availability test and modify the success criteria.

C.  Modify the code of WebApp1 to include dependency tracking and then redeploy WebApp1.

D.  Modify the code of WebApp1 to include timing code and then redeploy WebApp1.