Zscaler Application Support Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 13 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Zscaler.
Zscaler
Product Support Engineer
Senior Average Positive experience No offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Behavioral
It seems fine towards the experienced guys, you need to be very precise with the networking knowledge, more towards the knowledge from L4-L7. The process is pretty simple. You need to just be ready to get questions from your past experience and as per the live scenarios. This is a senior position so be ready to get overflow with scenario and in-depth questions.
Confirmed questions8 questions
- Tell me about your in-depth knowledge of TCP.
- Can you explain your in-depth understanding of DNS?
- What is your in-depth knowledge of SSL?
Zscaler
Support Engineer
Entry Average Positive experience Accept offer 5 rounds
Interview process
Recruiter call Group Technical screen Background check Offer
Interview formats
Technical Behavioral
Campus recruitment process involving 1. Aptitude test 2. Group Discussion 3. Technical Interview focusing on Computer networking, Network security, subject knowledge, and previous projects. 4. Manager round asking about reasons for choosing Zscaler, personal strengths and weaknesses, and expectations. 5. HR round with questions like 'how long would you like to stay with us'.
Confirmed questions5 questions
- Can you explain the OSI model?
- Describe the steps to troubleshoot a network connection on a PC.
- What are the key differences between TCP and UDP protocols?
Zscaler
Product Support Engineer
Mid Difficult Negative experience No offer 5 rounds
Interview process
Technical screen Recruiter call Onsite Background check Offer
Interview formats
Technical Behavioral
I went through about 4-5 rounds of interviews, which included talking with the Hiring Manager and the VP. I successfully passed all the interview stages and we even discussed salary. I received a Letter of Intent (LOI), but unfortunately, they never sent the official offer letter even after I followed up several times. I'm not sure why it didn't go through.
Confirmed questions4 questions
- Can you explain DNS?
- What about HTTPS?
- Tell me about TCP/IP.
Zscaler Application Support Engineer Interview Questions
Quoted word for word from Zscaler interview reports.
“What is a reverse proxy?”
Read reports →“What are the key differences between TCP and UDP protocols?”
Read reports →“What is the distinction between encryption and decryption processes?”
Read reports →“What is SAML authentication?”
Read reports →“Describe the steps to troubleshoot a network connection on a PC.”
Read report →“Given a web server with many jpegs containing sensitive information that you do not want anyone to access, how would you protect the web server and ensure only certain users can view the jpegs?”
Read report →“Describe the IKE phase 1 and phase 2 processes.”
Read report →“Could you outline the different classes of IP addresses?”
Read report →“Can you explain DNS?”
Read report →Formats, difficulty and experience
Across all 13 Zscaler interview reports.