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Bulk-surface correspondence in Weyl semimetals assures the formation oftopological "Fermi-arc" surface bands whose existence is guaranteed by bulkWeyl nodes. By investigating three distinct surface terminations of theferromagnetic semimetal Co3Sn2S2 we verify spectroscopically its classificationas a time reversal symmetry broken Weyl semimetal. We show that the distinctsurface potentials imposed by three different terminations modify the Fermi-arccontour and Weyl node connectivity. On the Sn surface we identifyintra-Brillouin zone Weyl node connectivity of Fermi-arcs, while on Cotermination the connectivity is across adjacent Brillouin zones. On the Ssurface Fermi-arcs overlap with non-topological bulk and surface states thatambiguate their connectivity and obscure their exact identification. By thesewe resolve the topologically protected electronic properties of a Weylsemimetal and its unprotected ones that can be manipulated and engineered.

Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co3Sn2S2