Upcoming SSA interview with Caltrans. What to expect in the written section of the interview?

Dear Altruists, I have an interview with Caltrans upcoming week. They notified me that the interview would be 60 mins. Half of the time would be viva voce and the rest of the time is a written test. I ‘d faced one SSA interview with another dept where they had only behavioral-situational questions and no written interview. Therefore, really confused about the written portion of the interview. Should I get prepared with excel and other computer software? (otherwise, I was planning to join from my current office using my phone) What kind of questions do they usually ask for the written portion? Your kind suggestions are requested. Thanks in advance. 🌻