Answer
Bend at the knees, keep his back straight and lift with his legs
Explanation
Proper lifting procedures helps one to be safe and prevents back injuries when lifting something especially a heavy one. Safe lifting techniques are simple but effective.One needs to Stand close to the object, with your feet shoulder-width apart and your toes naturally pointed outward. Squat down next to the object by bending at your knees and hips It is advisable not to lift from a standing position with your waist bent or your knees locked.
Answer:
MDF, IDFs
Explanation:
MDF or main distribution frame is a cable racking system in networking used to interconnect and manage information technology connecting cables from itself to multiple IDFs.
The IDF or intermediate distribution frame, on the other hand, are cable racks that holds or stacks networking devices together and connects it cables to a central MDF rack.
A scenario of this connection is IDFs mounted on various floors on a building and all connected to one MDF.
Built in and user defined
I don’t understand it sorry :(.