Answer:
Set up audit trail
Explanation:
The administrator should set up an audit trail in order to get this information.
An audit trail would give him the record of all the configuration changes that have been made in a file or a database in the last 6 months.
Audit trails can be manual or electronic. It provides history and also documentation support. It can authenticate security and also help to mitigate challenges.
Answer:
User Datagram Protocol (UDP) , transport-layer segment.
Explanation:
The User Datagram Protocol is popularly known as UDP. It is defined as the communication protocol which is used across the internet for any time sensitive transmission like the DNS lookup or the video playback.
The UDP provides a unreliable and connectionless service to a invoking application.
The transport layers on sending side converts the application 
messages which it 
from the 
into a transport layer segment called as the transport layer segments. This is achieved by breaking down the application messages into a smaller chunks and then adding the transport layer header into each chunk so as to create a transport layer segment.
Update and measure those are the only understand answers
Link a GPO to the Marketing OU. In the GPO, edit the Enable client-side targeting policy and specify the Marketing Computers group.
In the WSUS console, edit the options for Computers and specify Use Group Policy or registry settings on computers.
In the WSUS console, create a Marketing Computers group.
Answer:
Makes it easier to read... summarize cite electronic versions of editions
