Zoho Interview Questions and Answers
Zoho is a technology company that has more than 50+ apps to cater the services in different domains. In this article, we will discuss Zoho interview questions, interview round and process and in the last we will share the interview preparation tips.
ZOHO Corporation was founded in 1996 by Sridhar Vembu and Tony Thomas. Earlier, it was known as AdvenetNet, which initially provided network management software, and in just five years company made an international presence by expanding official operations in Japan. From 1996 to 2009 company launched different successful products like ZOHO CRM, Writers, ZOHO Projects, Show, Creator, Sheet, etc., and in 2009, the company decided to rechristen AdventNet as ZOHO Corporation. Today ZOHO has more than 80 M+ customers, 12,000+ employees, and offers more than 50 + apps in 9 different domains such as Sales & Marketing, Customer Service, Email & Collaboration, Finance, Human Resource, Security & IT Management, Legal, Business Intelligence, and Custom Solutions. Now let’s Explore Zoho Interview Questions and Answers.
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ZOHO Interview Questions
ZOHO Technical Interview Questions
Q1. Difference between Static and Dynamic memory allocations.
Ans:
Static Memory Allocation:
- Memory is allocated for declared variables during the compile time.
- Memory is allocated from the stack memory.
- Once the memory is allocated, it can’t be used again
- Less efficient memory management
- It is used for arrays.
Dynamic Memory Allocation:
- Memory is allocated during the execution time.
- Allocation is done from the heap memory.
- Allocated memory can be used repeatedly, if not required anymore
- More efficient memory management
- It is used for linked lists.
Q2. What is a Data Structure?
Ans:
Data Structure is a way to demonstrate, organize, process, and manipulate the data in a system. It shows the relationship between data elements and enhances efficiency, reusability, and abstraction.
Also Explore: 8 Most Important Data Structures Every Programmer Must Know
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Q3. What is the difference between ArrayList and LinkedList?
Ans:
ArrayList and LinkedList are linear data structures and part of the java collection framework
ArrayList:
- Uses dynamic arrays to store the data
- Stores only similar data type elements
- Contiguous memory is allocated to all the objects.
LinkedList:
- Uses doubly linked list to store data
- Any type of data can be stored
- Contiguous memory is not allocated
Also Read: Difference between ArrayList and LinkedList
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Q4. What is Bubble Sort Algorithm?
Ans:
Bubble Sort is one of the simplest sorting algorithms that compare adjacent elements and swap them if they are lesser/ greater based on the conditions mentioned, i.e., each element is compared with all the other elements in the array till the final element is found.
Also Explore: Bubble Sort Algorithm (with Codes)
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Q5. What are the OOPs Concepts?
OOPs (Object-Oriented Programming) refers to the language that uses objects in programming. It is used for designing programs using classes and objects. It provides concepts such as inheritance, abstraction, polymorphism, encapsulation, etc.
Also Explore our Web Story: OOPs with Analogy
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Q6. How to reverse a string in C?
Ans:
We will use strrev() function to reverse the string.
#include <stdio.h>#include <string.h>
int main(){ //declare the size of the stringchar str[100]; printf(\n “Enter the String: ”);scanf(“%s”, str);
//decalre strrev() functionprintf(\n Output: %s”, strrev(str));return 0;}
Also Read: Reverse a string in Java
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Q7. Find Duplicates in Array?
Ans:
#include <stdio.h>int main(){ int arr[] = {10, 20, 25, 30, 35, 30, 20, 10} //calculate the size of an array int size = sizeof(arr)/sizeof(arr[0]);
// print the duplicate elements printf(\n “Duplicate Elements:”);
// search the duplicate elements for(int i = 0; i < size ; i++ {for int j = i + 1; j < size; j++) {if(arr[i] == arr[j] printf(“%d\n”, arr[j]); } } return 0;}
Also Read: Implementing Array in Java
Also Read: Implementing Array in C Programming
Q8. Find the longest palindrome sub-string in a string.
Ans:
string getLongestPalindrome(string s) { int n = s.size(); int index = 0, palindromeLength = 1; for (int i = 1; i < n; i++) { int left = i - 1, right = i; while(left >= 0 && right < n && s[left] == s[right]) { if(right - left + 1 > palindromeLength) { index = left; palindromeLength = right - left + 1; } left--; right++; } left = i - 1; right = i + 1; while(left >= 0 && right < n && s[left] == s[right]) { if(right - left + 1 > palindromeLength) { index = left; palindromeLength = right - left + 1; } left--; right++; } } string ans = ""; for (int i = index; i < index + palindromeLength; i++) { ans += s[i]; } return ans;}
Also Read: How to Check if a Python string is a Palindrome.
Q9. Write a program to get the output:
Eg. 1: input: a1b10
Output abbbbbbbbb
Eg. 2 input b3c6d15
output bbbccccccddddddddddddddd
The number varies from 1 to 99.
Ans:
#include<stdio.h>#include<string.h>int main(){ int n,i,j,count=0; char a[50],ch; scanf("%s",a); for(i=0;i<strlen(a);i++) { if(a[i]>='0'&&a[i]<='9') { count=(count*10)+(a[i]-'0'); } else if(count>0) { count--; for(j=0;j<count;j++) { printf("%c",ch); }count=0; } if(a[i]>'9') { ch=a[i];printf("%c",a[i]); } // printf("%d\n",i); if(i==(strlen(a)-1)) {--count; for(j=0;j<count;j++) { printf("%c",ch); } } } return 0; }
Q10. Write a program to print the following output for the given input. You can assume the string is of odd length.
Input: 12345
Output:
1 5
2 4
3
2 4
1 5
Ans
#include<stdio.h>int main(void){ char str[50]; int i,j,n; printf("Enter the string : "); scanf("%s",str); for(n=0;str[n];n++); n=n/2+1; for(i=1;i<=n;i++) { for(j=1;j<i;j++) printf(" "); for(j=0;j<2*(n-i)+1;j++) if(j==0 || j==2*(n-i)) printf("%c",str[i-1+j]); else printf(" "); printf("\n"); }
for(i=2;i<=n;i++) { for(j=1;j<=n-i;j++) printf(" "); for(j=1;j<=2*i-1;j++) if(j==1 || j==2*i-1) printf("%c",str[n-i-1+j]); else printf(" "); printf("\n"); }
return 0;}
for(i=2;i<=n;i++) { for(j=1;j<=n-i;j++) printf(" "); for(j=1;j<=2*i-1;j++) if(j==1 || j==2*i-1) printf("%c",str[n-i-1+j]); else printf(" "); printf("\n"); } return 0;}
Advanced Level Questions
Question: Explain the Global Interpreter Lock (GIL) in CPython. How does it impact multi-threaded applications, and how can you work around its limitations?
Answer: The GIL is a mutex that protects access to Python objects, preventing multiple native threads from executing Python bytecodes simultaneously in a single process. This lock is necessary because CPython’s memory management is not thread-safe. The GIL impacts the performance of CPU-bound and multi-threaded programs in CPython.
To work around it, one can use multi-processing, external libraries like NumPy that release the GIL or use a different Python implementation like Jython or PyPy.
Question: Describe how Python’s garbage collection works and the role of reference counting in it.
Answer: Python uses a combination of reference counting and a cyclic garbage collector. Every object has a reference count, which is incremented or decremented as references to the object are created or deleted. When the reference count drops to zero, the memory is immediately reclaimed. For detecting cycles (e.g., two objects referencing each other), Python uses a cyclic garbage collector that periodically checks for reference cycles and cleans them up.
Question: How would you implement a decorator in Python that measures the execution time of a function?
Answer:
import time
def timer_decorator(func): def wrapper(*args, **kwargs): start_time = time.time() result = func(*args, **kwargs) end_time = time.time() print(f"{func.__name__} executed in {end_time - start_time} seconds") return result return wrapper
Question: How does the
volatile
Answer: The volatile keyword in Java ensures that a variable is read from and written to the main memory directly rather than being cached in a thread’s local memory. It guarantees visibility but not atomicity. It’s used when multiple threads access a variable and ensures that any write to the volatile variable establishes a happens-before relationship, making the write visible to all subsequent reads by other threads.
Question: Describe the differences between
ExecutorService
CompletableFuture
ForkJoinPool
| ExecutorService | CompletableFuture | ForkJoinPool |
| It’s an interface that provides a higher-level replacement for the traditional way of managing threads. It supports thread pooling and scheduling and allows you to control the number of active threads. | It represents a future result of an asynchronous computation. It allows writing non-blocking asynchronous code and can handle the result or exception when the computation is complete. | It’s an executor service for parallelism, designed to recursively split tasks into smaller tasks and then combine the results. It’s useful for tasks that can be broken down into smaller chunks, like recursive algorithms. |
ZOHO HR Interview Questions
Q1. Tell me something about yourself.
Ans: This is one of the first questions when you interact with HR to know more about yourself. To answer this, starts with your name, academic records, and work experience, if you have any.
This question is asked to check your communication skills.
Q2. What are your skills?
Ans: This question is asked to know about your core skills to check whether you are suitable for the job profile or not.
Let you are applying for any technical role; then you have to mention the programming language (C/C++/Java) you are an expert.
If you are making the transition in that domain, then you must mention the courses and the internship you have done to fit in the role.
Q3. What do you know about ZOHO?
Ans: This question is asked to check whether you have done some research about the company or not. So, just mention that before joining the interview, I checked the website of ZOHO, and I found:
- An MNC serving across the world
- Trusted across the top companies
- Catering Services across different domains through 55+ products
Q4. Where do you see yourself in the next five years?
Ans: These types of questions are asked to know about your future goals and your career perspective. So, while answering, don’t give over an ambitious answer; just discuss your interest in the job and state your goals as a result.
Q5. Do you have any questions?
Ans. Now, this is your time to know more about the company, job profile, perks & benefits, or whatever you want to know.
Don’t miss to ask questions you want to know.
Also Explore: Top HR Interview Questions and Answers
ZOHO Interview Round and Process
At ZOHO, the interview process usually consists of five rounds of written tests, basic programming, advanced programming, and HR rounds (Technical and General).
Written Test
It is an aptitude test that is mandatory for freshers. The test is divided into two parts.
- General Aptitude (Time, Work, Profit & Loss, Percentage, Ratio) to check your problem-solving skills
- C – Programming Aptitude (Nested Loops, Recursions, Flow Charts, Pointers) to check your basic C programming skill
Basic Programming
The questions will be based on C, C++, and Java. There will be five programming questions that cover pattern printing, array manipulations, sorting algorithms, loops, and recursions.
For this round of the interview process, you must have to be a basic knowledge of data structure.
Advanced Programming
Once you have cleared the basic programming round, the real tests start from here. In this round, your data structure and algorithm, and problem-solving skill will be tested. You can also call this round a designing round. Here you have to build or design apps/games/systems in either C/C++/Java programs depending on your experience.
In this round, you will have only 1-2 questions that you have to solve in 90 minutes.
Technical HR Round
It’s optional, totally depending on your performance in basic and advanced programming rounds. If you performed exceptionally well, then this round can be skipped.
This round usually ends up in 30-40 mins, and the fundamental questions of data structure, guesstimate questions, puzzles, etc.
Sometimes you have to explain the logic you used to solve questions in previous rounds.
General HR Round
If you reach here, you can be relaxed and confident that you have made it to the company. This round is the most simple round as HR will be interested to know about your family, why to join Zoho, and the salary you expect.
In this round, you can ask as many questions as you can.
Must Read: TCS HR Interview Questions
Preparations Tips
- Topics to Cover
- Practice Problem Solving Regularly
- Write clean and readable codes
- Be Interactive, Specific, and Confident
FAQs
How to prepare for Zoho interview?
Learn the concepts of programming and DBMS, practice programming everyday and checkout the interview questions mentioned above.
What are the question asked in Zoho?
In the aptitude round you will be asked questions related to HCF, LCM, ratio, percentage and puzzle, while in the technical round you will be asked about data structure and algorithm, array, string, pattern programming. To know more about question asked in Zoho, check the above list of questions.
How many rounds are there in Zoho interview?
There are 5 rounds of interviews in Zoho: 1. Written Test 2. Basic Programming 3. Advanced Programming 4. Technical HR Round 5. General HR Round
What is the average salary in Zoho?
According to Ambition Box, the average Zoho salary ranges approximately from INR 1.4 lacs per year for Data Entry operator to INR 30.3 lacs per year for a project manager.
Why to join Zoho?
Customer Trust: Three out of every five top 500 fortune companies trust Zoho services. According to more than 300+ reviews on Ambition Box, Zoho has spectacular ratings in: Job Security - 4.5/5 Company Culture - 4.5/5 Work-Life Balance - 4.2/5 Salary and Benefits - 4.2/5 Career Growth - 4.0/5
Is the Zoho Interview Difficult?
No, the interview is not difficult. You, just have to focus on your skills. Learn the concept of DBMS and practice coding problems daily.
What is a Data Structure?
Data Structure is a way to demonstrate, organize, process, and manipulate the data in a system. It shows the relationship between data elements and enhances efficiency, reusability, and abstraction.
What is the difference between ArrayList and LinkedList?
ArrayList: Uses dynamic arrays to store the data Stores only similar data type elements Contiguous memory is allocated to all the objects. LinkedList: Uses doubly linked list to store data Any type of data can be stored Contiguous memory is not allocated
What is Bubble Sort Algorithm?
Bubble Sort is one of the simplest sorting algorithms that compare adjacent elements and swap them if they are lesser/ greater based on the conditions mentioned, i.e., each element is compared with all the other elements in the array till the final element is found.
Vikram has a Postgraduate degree in Applied Mathematics, with a keen interest in Data Science and Machine Learning. He has experience of 2+ years in content creation in Mathematics, Statistics, Data Science, and Mac... Read Full Bio
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