Ericsson Associate Trainee Interview Questions and Answers

The aptitude test consists of 26 questions, including 2 coding questions.

Q1. What is Data Structures
Ans. 
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
• Data structures define the way data is stored, accessed, and manipulated in a computer program.

• Examples include arrays, linked lists, stacks, queues, trees, and graphs.

• Choosing the right data structure is crucial for optimizing the performance of algorithms and applications.
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Q2. Explain a Binary Search Tree
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A Binary Search Tree (BST) is a data structure where each node has at most two children, with the left child being less than the parent and the right child being greater.
• Nodes in a BST are arranged in a hierarchical order where each node has a left child and a right child.

• The left child of a node contains a value less than the parent node, while the right child contains a value greater than the parent node.

• BST allows f...read more
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Q3. Dijkstra Algorithm
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Dijkstra's Algorithm is a graph search algorithm for finding the shortest path from a single source to all other nodes in a graph with non-negative edge weights.
• Dijkstra's Algorithm is used in various applications such as network routing protocols, GPS systems, and road navigation.

• It works by maintaining a set of nodes with known shortest distance from the source and iteratively expanding this set by adding the nearest...read more
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Q1. Questions on Resume
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Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Business Administration and a passion for leadership and problem-solving.
• Graduated with a degree in Business Administration

• Passionate about leadership and problem-solving

• Completed internships in marketing and finance

• Involved in student organizations such as student government and business clubs
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Q2. Tell me about your favourite product/ brand
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Q1. What is osi layer
Ans. 
OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.
• OSI model helps in understanding how different networking protocols work together.

• Each layer has specific functions and communicates with the adjacent layers.

• Examples of OSI layers include Physical, Data Link, Network, Transport, Session, Presentatio
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Q2. What is transport layer
Ans. 
Transport layer is responsible for end-to-end communication between devices in a network.
• Responsible for segmenting data from the application layer into smaller packets for transmission

• Ensures reliable delivery of data through error detection and correction

• Manages flow control to prevent overwhelming the receiving device

• Examples include TCP (Transmission Control Protocol) and UDP (User Datagram Protocol)
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Medium DSA questions

Q1. Previous projects
Ans. 
I have worked on various projects including market research, product development, and process improvement.
• Conducted market research to identify customer needs and preferences

• Led a team in developing a new product from concept to launch

• Implemented process improvements to increase efficiency and reduce costs
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Qualitative, Quantitative

Little bit easy on English, quantitative

Medium level coding questions with having pseudo codes

Q1. Self introduction
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Q2. Write a program binocs series
Ans. 
The binocs series program generates a series of numbers based on a specific pattern.
• Create a function to generate the binocs series based on the given pattern

• The series can be generated using mathematical operations like addition, subtraction, multiplication, etc.

• Example: If the pattern is to add 3 to the previous number, the series would be 1, 4, 7, 10, 13, ...
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Basic appti. Question

Q1. Question about computer networks
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