Which of the following reduces the amount of data that must be transmitted on a network by keeping a copy of recently transmitted data in memory?

A new SaaS timecard application that is being tested will be used by all employees at a large corporation. The following process was used to test the application:
1. Three users from each site used the application for three weeks.
2. The new application was used side by side with the existing application.
3. The outputs of the old and new applications were compared side by side.
Which of the following requirements did the testing plan confirm? (Select two.)

A recent advertisement campaign has increased traffic to an e-commerce application that is hosted within a public cloud environment. Customers are reporting that it takes too long to load their pages and submit orders. A cloud administrator looks at the metrics from the environment and sees high utilization of the CPU and memory resources. The cloud provider offers several preconfigured sizes for server template: x- small, small, medium, large, x-large, and 2x-large.

Given an expected increase in workload, which of the following is the BEST solution to improve application performance?

A hosted file share was infected with CryptoLocker and now root cause analysis needs to be performed. Place the tasks in the correct order according to the troubleshooting methodology.

A system's application servers need to be patched. The requirements for maintenance work are as follows:
System downtime is not allowed.

The application server in use must be in the sane patch status.

System performance must be maintained during patching work.

Testing after patching must be done before the application server is in use.

If any trouble occurs, recover the previous version in ten minutes.

Which of the following methodologies should be selected?