Of the clients you said you might be able to bring with you, how many of them would you, using your mobile, be able to phone now and speak to directly?

And the answer was:

[According to the interviewer who asked the question.] Since it's a very closed question the answers are very transparent and revealing. The best has been one candidate who took out her mobile and was able to contact three senior people in good companies - she was bright enough too to use the speaker phone so I could hear the exchanges. The worst was someone who clearly phoned his mate!!

Additional information

This was asked of people aspiring to work in senior financial consultancy roles at Unisys.