The pointy front end of the boat is called the prow.See the related links below for more info, including pictures:
No. Although they could both be used for raiding and plunder, they were set in different times and were entirely different kinds of ships.Viking ships (longships) were very seaworthy craft usually...
Viking has a prow decorated with dragon heads.
They have shields outside there ships because when other people on ships come along they are ready to battle them.
probably deliberately sacrified this ship for the burial before any accident happened, and to build a better one as a replacement.