Concentrix Interview Guide

About Concentrix Technical Interview

Concentrix technical interviews focus mainly on IT Support, Networking, Operating Systems, Troubleshooting, Computer Fundamentals, and Customer Handling Scenarios.

Purpose of the Technical Round

The interviewer evaluates:

Understanding of hardware & software concepts
Troubleshooting skills
Ability to explain technical things in simple customer-friendly language
Practical knowledge more than theory
Communication + patience while solving a technical issue

Duration

Usually 20 – 40 minutes

Format

The interviewer may ask:

Basic IT questions
Networking & Windows OS fundamentals
Scenarios (e.g., if a user cannot connect to Wi-Fi)
Ticketing tool knowledge
Technical questions based on your resume / certifications

50 Most Asked Interview Questions in Concentrix Interview

What is an operating system?
An OS runs hardware and software together. It controls memory, processes, files, security and user interaction. Without OS a computer cannot work.
Difference between 32-bit and 64-bit OS.
32-bit supports up to 4GB RAM. 64-bit supports higher RAM, faster performance, and heavy apps. 32-bit apps mostly work on 64-bit OS.
What is BIOS or UEFI?
It is firmware that runs before OS loads. It checks hardware and helps the system boot. UEFI is faster and more secure than BIOS.
What is a device driver?
It helps the OS communicate with hardware like printers and display screens. Without drivers, hardware will not function properly.
Difference between system software and application software.
System software manages the computer like Windows. Application software helps users like MS Word. Both work together.
What is an IP address?
A unique number given to every network device to communicate. IPv4 is common, IPv6 supports more devices.
Difference between public and private IP.
Private IP is used inside home or office networks. Public IP is given by ISP and used on the internet.
What is DNS?
It changes website names into IP addresses. It allows users to browse websites easily.
What is DHCP?
It gives IP address automatically to devices to avoid manual network setup.
What is subnet mask?
It divides IP address into network and host parts. Helps routing and communication.
Difference between LAN, MAN and WAN.
LAN is small like an office. MAN is bigger like a city. WAN is very large like the internet.
What is a router?
A router connects different networks and selects the best path for data.
What is a switch?
A switch connects multiple devices in a LAN using MAC addresses.
How to fix Wi-Fi not connecting problem?
Check Wi-Fi ON, airplane mode OFF, restart router, check IP settings, drivers, and run ping commands.
System is slow. What will you do?
Check task manager, remove startup apps, scan for virus, clean storage, and check RAM or HDD issue.
Printer not responding. How to fix?
Check power, cables, paper jam, spooler service, and reinstall drivers if needed.
What is BSOD?
Blue Screen error happens due to driver or hardware failure. Fix by updating drivers and checking memory.
What is safe mode in Windows?
A mode that loads only important drivers to fix system problems.
What is Task Manager?
A tool to see running apps, CPU and RAM usage, and stop not responding programs.
What is Windows registry?
A database with important OS and app settings. Wrong editing may stop system functioning.
What is Active Directory?
A service used to manage users, computers, security and login permissions in companies.
What is disk partitioning?
Dividing a hard disk into logical drives to organize data.
Difference between HDD and SSD.
HDD is slow with spinning disks. SSD is fast and uses flash memory.
What is RAID?
Combining multiple disks for better performance or backup. RAID 0 for speed, RAID 1 for mirroring.
What is a file system?
Defines how data is stored and managed. NTFS supports permissions, FAT32 is older type.
What is MS Office?
Software like Word, Excel and PowerPoint used for office work and communication.
What is virtualization?
Running multiple operating systems on one physical machine.
What is a software patch?
An update that fixes bugs or security issues in apps or OS.
What is a firewall?
A security system that blocks unauthorized network access.
What is antivirus?
Software that protects system from viruses and malware.
What is phishing?
Tricking users to give personal data through fake emails and websites.
What is an IT ticket?
A recorded complaint about a technical issue. Used to track support and resolution.
What is SLA?
A fixed time limit for solving issues. Support teams must follow it.
Have you used ticketing tools?
ServiceNow, Jira and Remedy are common tools to track and solve IT problems.
Customer is angry. What will you do?
Stay calm, listen, apologize, assure help and solve their issue step by step.
If you don’t know the answer in a call?
Do not guess wrong. Inform customer nicely, check knowledge base, or escalate to senior.
Remote support steps.
Take permission, connect with approved tool, troubleshoot, explain steps clearly and document.
What is Ping test?
Ping checks connectivity and packet loss between devices to find network issues.
Network cable connected but no internet. Why?
Wrong IP, broken cable, DNS issue, disabled adapter, or ISP problem.
Router keeps disconnecting. Why?
Weak signals, too many devices, overheating, outdated firmware or ISP fault.
What is a batch file?
A file with multiple Windows commands that run automatically for troubleshooting.
What is PowerShell?
Advanced command-line tool for automation and managing Windows systems.
Why static IP is used for printers?
To prevent changes caused by DHCP. Keeps printer reachable for all users.
Difference between HTTP and HTTPS.
HTTPS is secure with encryption. HTTP is not secure.
Common ports in networking.
Port 80 for HTTP, 443 for HTTPS, 53 for DNS, 25 for mail, 21 for FTP, 22 for SSH.
What is thermal paste?
Paste between CPU and heat sink to remove excess heat and prevent shutdown.
What is POST during start-up?
A test run by BIOS to check hardware before loading OS.
What is CMOS battery?
Stores BIOS settings and time. If weak, BIOS resets automatically.
Laptop charging but not turning ON. Why?
RAM not detected, display issue, motherboard fault or damaged power button.
How to explain technical issues to non-technical users?
Use simple language without jargon, explain step-by-step and confirm understanding.

Concentrix Coding Questions

1. Print numbers from 1 to 10

This question checks basic looping. You can use a for or while loop to print values one by one.

for i in range(1, 11):
    print(i)

Explanation: The loop starts from 1 and runs until 10, printing each number.

2. Find sum of first 100 natural numbers

You can use a loop or formula n(n+1)/2.

sum = 0
for i in range(1, 101):
    sum += i
print(sum)

Explanation: Every number is added to a running total. Final answer = 5050.

3. Check if a number is even or odd

Use modulus %.

n = int(input())
if n % 2 == 0:
    print("Even")
else:
    print("Odd")

Explanation: If a number gives remainder 0 when divided by 2 → even else odd.

4. Check whether a number is palindrome

A number is palindrome if reversed number equals original.

n = input()
if n == n[::-1]:
    print("Palindrome")
else:
    print("Not Palindrome")

Explanation: Reversing the string and comparing tells if it reads same from both sides.

5. Reverse a string

s = input()
print(s[::-1])

Explanation: slicing [::-1] builds a reversed version of the string.

6. Count vowels in a string

s = input().lower()
count = 0
for ch in s:
    if ch in "aeiou":
        count += 1
print(count)

Explanation: Loop checks every character whether it’s a vowel and counts them.

7. Find largest of three numbers

a,b,c = map(int,input().split())
print(max(a,b,c))

Explanation: Built-in max() compares three values and prints the largest.

8. Print Fibonacci series (first 10 numbers)

a,b = 0,1
for i in range(10):
    print(a)
    a,b = b,a+b

Explanation: Each number is sum of previous two.

9. Check if number is prime

n = int(input())
flag = True
for i in range(2,n):
    if n % i == 0:
        flag = False
        break
print("Prime" if flag else "Not Prime")

Explanation: Prime number is divisible only by 1 and itself.

10. Swap two variables

a,b = map(int,input().split())
a,b = b,a
print(a,b)

Explanation: Python swaps values directly without a third variable.

11. Sort an array/list

arr = list(map(int,input().split()))
arr.sort()
print(arr)

Explanation: .sort() arranges values in ascending order.

12. Remove duplicate elements from a list

nums = list(map(int,input().split()))
unique = list(set(nums))
print(unique)

Explanation: set() automatically removes duplicates.

13. Find factorial of a number

n = int(input())
fact = 1
for i in range(1,n+1):
    fact *= i
print(fact)

Explanation: Multiply numbers up to n to get factorial.

14. Count digits in a number

n = input()
print(len(n))

Explanation: Length of string form gives number of digits.

15. Check whether string is anagram

a = input()
b = input()
print("Anagram" if sorted(a)==sorted(b) else "Not Anagram")

Explanation: Two strings are anagrams if sorted characters are same.

16. Find second largest number in list

arr = list(map(int,input().split()))
arr = list(set(arr))
arr.sort()
print(arr[-2])

Explanation: Remove duplicates, sort, pick second last element.

17. Count occurrences of each character

s = input()
d = {}
for ch in s:
    d[ch] = d.get(ch,0) + 1
print(d)

Explanation: Dictionary keeps count of each repeated character.

18. Find sum of digits of a number

n = input()
total = 0
for ch in n:
    total += int(ch)
print(total)

Explanation: Convert each digit into integer and add.

19. Convert Celsius to Fahrenheit

c = float(input())
f = (c * 9/5) + 32
print(f)

Explanation: Uses standard conversion formula.

20. Print multiplication table of a number

n = int(input())
for i in range(1, 11):
    print(n, "x", i, "=", n*i)

Explanation: Loop multiplies number from 1 to 10 and prints results.

Why Concentrix Asks These Coding Questions

Even if job role is technical support / IT service desk, simple coding questions test:

Skills Checked	What interviewer observes
Logical thinking	Can you break a problem into steps?
Pattern recognition	Can you identify repeated structure?
Basic syntax	Do you understand programming rules?
Explanation clarity	Can you describe logic clearly?

These questions are not about perfection → they check basic logic, confidence, and ability to think.

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