For position of senior security analyst, you must know at least few network security products or endpoint security products with hands-on knowledge. 1. You will be ask according to you CV and your hands on experience on devices. 2. You will be given some scenarios and will ask to explain it. 3. some generic questions may come, how will you handle escalation calls. 4. How will you manage if 2-3 calls came at same time and need intervention on priority. 5. some general questions related to interpersonal skills, Pros and cons about yourself and explain it. 6. it will be 24/7 or it will be for client site, you can ask it in interviews it self weather you are recruited for what Location - office or client. 7. If you do not know the answer to any questions, do not try to fool around with interviewer, instead say no to that question.