I am trying to compare cksum of 5 files in four different directories . The cksum of files in three directories on same server is same but the cksum of the files in the directory on another server is different. why is this happening?

Output on one server:
2741269201 1822 NRBGDWTESPTE000 0002
475751410 11887 NRBGDWTESPTE000 0003
917092061 22198 NRBGDWTESPTE000 0004
1352351944 18683 NRBGDWTESPAT000 0005
...