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Technical Support Analyst L2 Interview Questions

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544 technical support analyst l2 interview questions shared by candidates

Given an array of integer, print frequency of each element without using HashMap Input = [1,3,5,1,4,2] Outpur = element frequency Make a class immutable ( explain what happens if you make class final and why) Internal working of hashmap with edge case scenarios What are lambdas What is Predicate Fx Can you make a thread in lambda function Given a list of employees, sort the list on the basis of Empy rating using stream API Write thread safe singleton class which is completely thread safe Executor Framework and Some questions on it.  Types of Thread Pool Garbage collection Algo . Do you know Any other than Mark and Sweep How is Java memory Structures. Explain Diff memories in Java. And other question relalated to it. Print nos from 0 to 10 using a thread Wrire SQL query to print emplote name and its managers name. Given is a relation between employee and manager id; What is polymorphism and some output problems Explain Solid Design Principles What all design patterns used What is Template Pattern. Can you really use Interface nstead of abstract class? Can you privde impls of mentohs in interfaces How many default methods can you write in interfaces How arrayList works internally
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Associate Technology L2

Interviewed at Publicis Sapient

3.4★
Jun 25, 2021

Given an array of integer, print frequency of each element without using HashMap Input = [1,3,5,1,4,2] Outpur = element frequency Make a class immutable ( explain what happens if you make class final and why) Internal working of hashmap with edge case scenarios What are lambdas What is Predicate Fx Can you make a thread in lambda function Given a list of employees, sort the list on the basis of Empy rating using stream API Write thread safe singleton class which is completely thread safe Executor Framework and Some questions on it.  Types of Thread Pool Garbage collection Algo . Do you know Any other than Mark and Sweep How is Java memory Structures. Explain Diff memories in Java. And other question relalated to it. Print nos from 0 to 10 using a thread Wrire SQL query to print emplote name and its managers name. Given is a relation between employee and manager id; What is polymorphism and some output problems Explain Solid Design Principles What all design patterns used What is Template Pattern. Can you really use Interface nstead of abstract class? Can you privde impls of mentohs in interfaces How many default methods can you write in interfaces How arrayList works internally

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