A systems administrator is implementing a new version of a company's primary human-resources application. An upgrade will be performed on the production server, as there is no development environment. The administrator needs to have a plan in case something goes wrong with the upgrade. Which of the following will work best to ensure a quick rollback in case an issue arises?
Below is the output from a troubleshooting activity:
1. SaaS application is unavailable to a set of users at a single site.
2. WAN connectivity was considered to be the cause of the problem.
3. Upon testing, it seemed the WAN connectivity was up, but the default gateway was unreachable from the internal users.
4. The faulty switch was replaced to bring up the connectivity.
5. The incident was documented.
Based on the methodology, which of the following steps was overlooked during the activity?
A cloud engineer, who manages workloads in a public cloud environment, uses autoscaling to maintain availability of a critical application. During a recent burst in demands, the engineer received the following error alert:
LimitedlnstanceCapacity
Which of the following is MOST likely cause of the error?
Which of the following is relevant to capacity planning in a SaaS environment?
A system administrator has provisioned a new web server. Which of the following, in combination, form the best practice to secure the server's OS? (Choose three.)
