Answer: A select the picture
If a client initiates the SMTP communication using an EHLO (Extended Hello) command instead of the HELO command some additional SMTP commands are often available. They are often referred to as Extended SMTP (ESMTP) commands or SMTP service extensions. Every server can have its own set of extended SMTP commands.
I belive Nexus is not a Operating system, I am not a pro at knowing all of the operating system.
Answer:
transportation and communications systems, water and power lines, and public institutions like schools, post offices, and prisons.
Explanation:
To ensure that multiple backups of the server are available for restores you should Modify the frequency of the scheduled backup.
a. Modify the frequency of the scheduled backup.
<u>Explanation:</u>
To backup system normal and good practices schedule every day either different folder, which is further classified day of a week name. For example Sunday, Monday, Tuesday Wednesday, Thursday, Friday Saturday backup schedule will once a week.
Suppose Monday backup schedule run once a week at midnight of every Monday, same away Tuesday backup schedule run once a week at midnight of every Tuesday. If we schedule weekly one day folder end user will have 6 last days folder so that end user can restore the data any point of time.
