there's a whole list of questions that may be asked for both CPL & IR and this is one of them......obviously not as relevant for CPL but not completely silly
have a look at appendix 3:
http://www.caa.co.uk/docs/33/SRG_FCL_06_A.PDF (this is probably what you have been sent)
..and note question inaccuracies such as the words headings not tracks etc.
if nothing else just best to answer the question if it's asked so you "give a good impression"....
(answers include "redundancy / set QFE on one leave other on QNH etc. / cross-check for errors)
good luck with the test