Tellabs Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 29 interview experiences · FREE TO READ
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10 roles · 29 reportsCandidate interview experiences
First-hand accounts from people who interviewed at Tellabs.
Tellabs
QA
Entry Average Positive experience Accept offer 3 rounds
Interview process
Recruiter call Phone screen Onsite
Interview formats
Behavioral Technical
The process began at a job fair where Tellabs was recruiting. While the hiring managers I'd end up working with weren't there (it was a Saturday), I spoke to a manager from a different team. He suggested I'd be a better fit for another team and took my resume to pass along to the appropriate hiring manager. After about two weeks and some follow-up, one of the hiring managers called me for a phone screen. Even though I wouldn't report to her, she led the interview process because my actual manager was on leave. The phone screen was followed by an in-person interview scheduled for the next week. Once that was done, the manager I would report to called me as a follow-up.
Confirmed questions1 question
- Were there any unexpected questions asked during the interview?
Tellabs
Product Manager
Staff Average Positive experience Accept offer 4 rounds
Interview process
Recruiter call Phone screen Onsite Group Presentation Offer
Interview formats
Behavioral Technical Presentation
The interview process mostly included in-depth phone chats with the hiring manager (about 90 minutes), two chats with team members (about 30 minutes each), and one chat with someone from sales (about 30 minutes). There was also a casual 30-minute face-to-face chat in a lab with one of the people I spoke with on the phone. It was sometimes unclear what the next steps were or inconsistent with what I was told.
Confirmed questions1 question
- Describe how you would handle influencing a challenging product organization that has not prioritized the market region you would support.
Tellabs
Intern
Intern Average Positive experience Accept offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite Panel Group Presentation Background check Offer
Interview formats
Behavioral Technical
The first interview was a phone call with HR, covering standard questions about my interest in the role, my background, and my skills. The second interview was with the team and involved behavioral, skills, and experience questions. The final interview was with a director who asked more behavioral questions.
Confirmed questions3 questions
- Can you tell me about your strengths and weaknesses?
- How would you handle a specific problem?
- What would be your approach in a given scenario?
Tellabs
Software Engineer
Mid Average Negative experience No offer 7 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Coding
I interviewed with 7 people. It was mostly professional, but a few interviewers were too theoretical and seemed to have big egos. None of them seemed very enthusiastic about the company.
Confirmed questions3 questions
- Can you explain the step-by-step network design for different protocols?
- Please write out a full Ethernet frame on the whiteboard.
- Please write out a full MPLS frame on the whiteboard.
Tellabs Interview Questions
Quoted word for word from Tellabs interview reports.
“Describe IGMP Protocol.”
Read reports →“How is adjacency formed in OSPF?”
Read reports →“Can you explain whether the ARP layer is considered Layer 2 or Layer 3, and provide the reasoning for each classification?”
Read reports →“What is Windowing in networking?”
Read reports →“How do VLANs work?”
Read report →“What about RSTP?”
Read report →“What are the core aspects of Transmission?”
Read report →“Explain Transmission concepts.”
Read report →“Regarding system recovery, which option would be your choice?”
Read report →Formats, difficulty and experience
Across all 29 Tellabs interview reports.