Wyatt Notices a Message on the Dashboard That One of the Servers

question 17

Multiple Choice

Wyatt notices a message on the dashboard that one of the servers is no longer reachable by the automation system. He remotes into the server by name and is able to connect just fine. He pings the server by name from his workstation and it comes back with a different IP address than what is in the automation system. Which of the following is a possible reason why?

• A) The server somehow changed from a static IP address to DHCP and is now receiving a different IP address and the automation system isn't configured to detect IP address changes automatically.
• B) The DNS server is having issues.
• C) There is a rule on the firewall blocking the automation traffic.
• D) The DHCP server is having issues.

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Definitions:

Sample Means

The average value of a set of observations, taken from a sample of the population.

Analysis of Variance

A statistical method used to compare the means of three or more samples to find out if at least one is significantly different from the others.

Population Means

The average value of a particular characteristic across all members of a defined population.

Independent Random Sampling

A method of sampling where each member of the subset is chosen randomly and entirely by chance, ensuring that every subset of the population has an equal opportunity of selection.