BAE Systems Software Engineer interview questions

I sent my CV online and heard back from a BAE recruiter a day later, after a quick chat they were confident I had the necessary skills and an interview was booked with the team a week later. The interview was online with 2 technical members of staff and was about 1.5 hours long. I was supposed to do a presentation but hadn't been informed about this beforehand, they were ok with this and just asked a couple of extra technical questions. There were a lot of questions, they go through your CV and then ask a mix of behavioural and technical questions. Some of these I couldn't answer but they were ok with me just saying I didn't know. I received feedback the same day so the whole thing took less than 2 weeks from sending my CV to getting an offer. The advice I was given was to research the company, ask lots of questions and be honest about your skills.

they will send you to make a ring buffer algo or program in C++, So once you will make the program they will call you for the 2nd interview and than will ask to explain how this ring buffer is working after that they asked me about the pointers and vectors from STL as my job was related to image processing hance they asked specific questions as well