Arista Interview Questions

Arista Interview Questions

Practice 6 real interview questions from Arista. Covers Coding & Algorithms, Software Engineering Fundamentals. For roles including Software Engineer.

6 Questions 1 Company03.25.2026
Showing 6 results
Role
Arista logo
Arista
Easy
Software Engineer

Explain Out-of-Bounds Bugs and Infinite Loops

You are given a C or C++ code snippet that behaves incorrectly. The root cause is an out-of-bounds memory access, such as reading or writing past the ...

Software Engineering Fundamentals
14
0
102 people solved
Mar 25, 2026
Arista logo
Arista
Hard
Software EngineerNew Grad

Implement and Defend a Generic C++ Stack

Implement and Defend a Generic C++ Stack Implement a dynamically growing generic stack in C++ and then defend its object-lifetime and call-semantics c...

Software Engineering Fundamentals
1
0
14 people solved
Oct 7, 2025
Arista logo
Arista
Easy
Software Engineer

Explain C printf pointers and memory layout

You are given the following C code: `c const char *c = "12345"; ` Answer the following (assume typical modern 64-bit Linux/macOS with GCC/Clang, unles...

Software Engineering Fundamentals
18
0
163 people solved
Oct 4, 2025
Arista logo
Arista
Easy
Software Engineer

Solve palindrome and missing-number variants

You are asked to solve two coding problems and analyze the time and space complexity of each. 1. Palindrome check Given a string s, determine whe...

Coding & Algorithms
5
0
51 people solved
Feb 3, 2026
Arista logo
Arista
Easy
Software Engineer

Remove Target Values from a Linked List

Given the head of a singly linked list and an integer target, remove every node whose value equals target and return the new head of the list. The tar...

Coding & Algorithms
4
0
53 people solved
Mar 25, 2026
Arista logo
Arista
Easy
Software Engineer

Find missing value in sorted consecutive array

Given a sorted array nums of distinct integers. The numbers are supposed to form a consecutive sequence starting from some unknown integer start: - If...

Coding & Algorithms
4
0
50 people solved
Oct 4, 2025
Arista Interview Questions (Updated 2026) | PracHub