1)
Yo'av agreed to stop! Why did Avner and his men go the entire night?
1.
Metzudas David: [Even so,] they feared lest Yo'av come upon them suddenly.
2)
What is "ha'Bisron"?
1.
Rashi: It is the name of a place. Radak - the border of Ever ha'Yarden is called so, for a reason that they knew.
