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Arista interview questions

5 practice questions in the style of Arista's interviews, covering Software Engineering Fundamentals, Coding & Algorithms.

Questions5

4 easy0 medium1 hard

Your progress0/5

Arista interview questions by the numbers

Last updated

Katkat has 5 Arista interview questions. The largest topics are Coding & Algorithms (60%) and Software Engineering Fundamentals (40%). By difficulty: 80% easy and 20% hard. The most common round is Technical Screen (100%).

Topics

Difficulty

  • Easy80% · 4
  • Hard20% · 1

Interview rounds

  • Technical Screen100% · 5

Roles

  • Software Engineer100% · 5

Most mentioned in interview experiences

  1. 1.Explain C printf pointers and memory layout1 report
  2. 2.Find missing value in sorted consecutive array1 report
  3. 3.Remove Target Values from a Linked List1 report
  4. 4.Solve palindrome and missing-number variants1 report

Counted from 3 candidate interview experiences on Katkat. How we collect and count

Showing 1–5 of 5 results

  • Explain C printf pointers and memory layoutEasy

    This question evaluates understanding of C pointer semantics, printf format-specifier behavior, memory layout and allocation differences, and practical debugger usage for inspecting addresses and bytes, within the Software Engineering Fundamentals domain.

    AristaSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
  • Find missing value in sorted consecutive arrayEasy

    This question evaluates understanding of array properties and algorithmic complexity, specifically detecting a single missing element in a sorted consecutive sequence within the Coding & Algorithms category.

    AristaSoftware EngineerCoding & AlgorithmsTechnical Screen
  • Implement and Defend a Generic C++ StackHard

    Implement a dynamically growing generic C++ stack with raw storage and correct object lifetime management. The deep-dive covers self-referential insertion, exception safety, move ownership, allocation mechanisms, reference validity, capacity overflow, and the distinction between language guarantees and ABI behavior.

    AristaSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
  • Remove Target Values from a Linked ListEasy

    This question evaluates proficiency with singly linked list manipulation, specifically in-place node removal and correct pointer/reference management. It is commonly asked to assess practical coding ability with data structures, handling of edge cases and resource implications; category: Coding & Algorithms (Data Structures), level of abstraction: practical implementation-focused.

    AristaSoftware EngineerCoding & AlgorithmsTechnical Screen
  • Solve palindrome and missing-number variantsEasy

    This question evaluates competencies in string processing, array manipulation, binary search, and algorithmic complexity analysis by asking a palindrome check and a missing-number problem that requires both O(n) and O(log n) reasoning, emphasizing edge-case handling and time/space complexity discussion.

    AristaSoftware EngineerCoding & AlgorithmsTechnical Screen

Arista interview experiences

All 5 →
  • Arista Networks Software Engineer linked-list and tree interview experienceArista Networks · Software Engineer · Technical Screen · Jul 2026

    After recruiter outreach, I had a DSA-heavy technical interview about linked lists and trees. The interview focused on how I reasoned about memory and pointers, not only whether I reached the final code. It lasted about an hour, and the interviewer was chill. I had to explain storage and memory use while building or tracing a solution, then answer follow-ups on traversal and pointer behavior. In…

  • Arista Networks Software Engineer live coding interviewArista Networks · Software Engineer · Technical Screen · Jul 2026

    The process felt simple and organized. After a short recruiter-style beginning, I entered live technical rounds. A few people took turns asking questions while I worked in real time. The session lasted about an hour and combined behavioral questions grounded in my resume with one LeetCode-style problem. I also went through a similar three-step process in which every stage involved live coding. Th…

  • Arista Networks Software Engineer interview: relocation conflict after a 15-minute callArista Networks · Software Engineer · Jun 2026
    Rejected

    I had a very short conversation with a recruiting coordinator, about 15 minutes. She said right away, after going through my resume, that she did not think I was a fit and would not move me forward. Since the meeting was still on the calendar, it felt pointless. She explained that the issue was a mix of logistics and preference. Because I did not want to relocate immediately, they said an intervi…

  • Rejected After Solving Both Problems OptimallyArista · Software Engineer · Technical Screen · Feb 2026
    Rejected

    There were two questions total: one palindrome string problem, one missing number problem. After I finished each one, they asked me for the time and space complexity. There were no resume questions, no other questions, not even a self-introduction. Overall the questions weren't hard. For the palindrome one, I considered the case where the string is "", but I didn't consider the case where it's di…

  • One-and-Done After a C/C++ ScreenArista · Software Engineer · Technical Screen · Oct 2025
    Rejected

    Arista — one round and done, Vancouver, network systems team. A lot of new openings got posted toward the end of the year — maybe they'd just opened up a new team? The one round was a VO, purely technical. After a five-minute self-introduction they went straight into problems. They used CoderPad, and most of the questions had already shown up on the forum. Questions and discussion They asked abou…

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