Interview Experience: Oracle Cloud Infrastructure (OCI) | IC3 Role
Summary
I recently interviewed with Oracle Cloud Infrastructure (OCI) for an IC3 role, navigating through several rounds that covered coding, networking, system design, and managerial discussions. I am currently awaiting the results of my interview.
Full Experience
Recently I got chance to interview with OCI Networking Team.
Round 1: Screening
Coding:
Reverse a linked list (Write end-to-end code).
Find the intersection point of two linked lists.
Networking & Debugging:
Basic networking and debugging questions.
Scenario Based : Packet drop debugging. Given a three-router topology (R1→R2→R3),
if a packet is not received at destination R3, how would you debug this scenario and identify where the packet is being dropped?
Loop Round 1
Coding:
A warehouse manager needs to create a shipment to fill a truck. All products are in identical-sized boxes, but each product has a different number of units per box.
Given the number of boxes the truck can hold, determine the maximum number of units of any mix of products that can be shipped.
Example 1
boxes = [1, 2, 3] (boxes available for each product)
unitsPerBox = [3, 2, 1] (units per box for each product)
truckSize = 3 (maximum number of boxes the truck can hold)
Output: 7
Linked List: Given a linked list where each node contains either 0 or 1, return the equivalent decimal value.
Loop Round 2: Systems Design & Networking
LLD/HLD: Design a Logging File System.
Design an LRU Cache and explain the choice of data structures used.
Networking:
Explain how Ping works in detail.
Basic networking and scenario-based questions.
Project: Detailed discussion regarding previous project work.
Loop Round 3: Architecture & System Design
Project Discussion: Explanation of previous project architecture.
System Design: Questions focused on latency and scalability.
Coding: Find the intersection point of two linked lists without using any extra space.
Round 4: Managerial
Project & Networking: Discussion on current projects and basic networking concepts.
System Design: Design a Cache System.
Documentation: Provide an Estimation of Effort (EoE) and a rough Specification Document for the designed system.
Waiting for result .
Interview Questions (11)
Reverse Linked List
Write end-to-end code to reverse a linked list.
Intersection of Two Linked Lists
Find the intersection point of two linked lists.
Packet Drop Debugging in Router Topology
Given a three-router topology (R1→R2→R3), if a packet is not received at destination R3, how would you debug this scenario and identify where the packet is being dropped?
Max Units in a Truck
A warehouse manager needs to create a shipment to fill a truck. All products are in identical-sized boxes, but each product has a different number of units per box. Given the number of boxes the truck can hold, determine the maximum number of units of any mix of products that can be shipped.
Example 1
boxes = [1, 2, 3] (boxes available for each product)
unitsPerBox = [3, 2, 1] (units per box for each product)
truckSize = 3 (maximum number of boxes the truck can hold)
Output: 7
Convert Binary Linked List to Integer
Given a linked list where each node contains either 0 or 1, return the equivalent decimal value.
Design a Logging File System
Design a Logging File System (Low-Level Design / High-Level Design).
Design LRU Cache
Design an LRU Cache and explain the choice of data structures used.
Explain how Ping works
Explain how Ping works in detail.
Intersection of Two Linked Lists (No Extra Space)
Find the intersection point of two linked lists without using any extra space.
Design a Cache System
Design a Cache System.
Estimation of Effort & Specification Document
Provide an Estimation of Effort (EoE) and a rough Specification Document for the designed system.