Network engineer @salesforce

Hello all I recently discovered blind. I am interviewing for network engineer position at salesforce, SF on Friday. I have 2 yrs of Cisco experience, and CCNA+Ccnp certified. Q1) firstly what topics should be concentrated on? Q2)how difficult would be the telephonic interview and how deep could they ask? Example questions ? Q3) What to expect for the compensation? What will be the average pay for network engineer at sales force in SF ??? Thank you all I wonder what would the compensation Wondering how