I applied online. I interviewed at Barracuda Networks (Campbell, CA) in Jan 2018
Interview
Have to know fundamental network protocols like http, https, dns, smtp, ssh and what ports they use. Having a cert is a plus like CCNA or CCENT but not necessary. Have a background of Networking.
Interview questions [1]
Question 1
What port does HTTP use?
List the OSI model
What is LDAP?
What port is RIP?
I applied in-person. The process took 2 weeks. I interviewed at Barracuda Networks (San Jose, CA) in Nov 2016
Interview
Phone interview with Lead Supervisor, mostly background, and then if you pass an IQ test. The test is based on; Networking, security, Networking topology, linux commands, and port numbers. If you fail the test, usually you get another chance to take it again after a week. The second test is similar but difference from what I've heard.
Interview questions [1]
Question 1
Linux command questions and Networking topology along with network security. Familiarize with port numbers.
I applied through an employee referral. The process took 1 day. I interviewed at Barracuda Networks in Mar 2012
Interview
Received a phone call from one of the managers, and was quickly able to set up an interview for the next day without any issue. When I arrived, the interview was done in one of the presentation rooms, but the interview itself was one on one with at least four different people. Everything in the office was very laid back - I was the most formally dressed person in the entire office. The interview itself was also very laid back, but don't let that fool you. The interview consisted of meeting up with four different interviewers, plus the head manager. Each of them asked a different set of technical questions, most of them pertaining to Linux/Unix. They also tested my troubleshooting skills. Interview took approximately two hours, but I only found out at the end that they were looking for night and evening tech support, which was impossible for me to do. Still a very informative experience.
Interview questions [1]
Question 1
Describe three types of internet routing protocols.