1. Sheep are not enclosed in an area. It's required that they roam.
But, yes, the shepherd does protect them.
Here is webster definition of sheepfold................
: a pen or shelter for
sheep
From Bible dictionary..........................
In biblical terms, the
meaning of the word sheepfold in the Bible refers to a safe enclosure for sheep, often used as a metaphor for God’s care and protection over His people. This term is deeply rooted in the pastoral culture of ancient Israel, where sheep herding was a common occupation. The sheepfold symbolizes safety, community, and the intimate relationship between the shepherd and the sheep.
[Jhn 10:1 KJV] 1 Verily, verily, I say unto you, He that entereth not by the door into the sheepfold,[G833][G4263] but climbeth up some other way, the same is a thief and a robber.
Jesus said he was the door to the sheepfold........................[Jhn 10:7-11 KJV] 7 Then said Jesus unto them again, Verily, verily, I say unto you, I am the door of the sheep. 8 All that ever came before me are thieves and robbers: but the sheep did not hear them. 9 I am the door: by me if any man enter in, he shall be saved, and shall go in and out, and find pasture. 10 The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have [it] more abundantly. 11 I am the good shepherd: the good shepherd giveth his life for the sheep.