I've been playing violin for 7 years, are viola fingerings a similar to violin?

Yes. The G, D, and A string fingerlings on a viola are all the same as a violin. The C string (thickest), however, is different (because there is not C string on a violin). On the low 1 (index finger, between 1 and the nut) fingering spot is C sharp/D flat. 1 (index finger, between low 1 and low 2) is D natural. Low 2 (middle finger, between 1 and 2) is D sharp/E flat. 2 (middle finger, between low 2 and 3) is E natural. 3 (ring finger, between 2 and high 2/low 4) is F natural. High 3/Low 4 (ring finger or pinkie/little finger can be used, it's just preference, between 3 and 4) is F sharp/G flat. 4 (pinkie/little finger) is always the next open string (in this case): G natural.