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NTT Network Security Administrator Interview Questions and Answers
NTT Network Security Administrator Interview Experiences
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TroubleshootinG Network WAN-O&M
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KUNDAN KUMAR
I applied via Campus Placement and was interviewed in Sep 2024. There were 3 interview rounds.
It is online test. In this test there is question of apti and also coding and from 5g question.
There are two questions asked and time is enough to solve 60 minutes
(5 Questions)
- Q1. Wap for palindrome number
- Ans.
A palindrome number is a number that remains the same when its digits are reversed.
Convert the number to a string
Reverse the string
Check if the reversed string is equal to the original string
- Q2. Add two numbers by function
- Ans.
Create a function to add two numbers
Define a function that takes two parameters as input
Inside the function, add the two numbers together and return the result
Example: function addNumbers(num1, num2) { return num1 + num2; }
- Q3. Write a code for Binary search
- Ans.
Binary search code implementation in Python
Define a function that takes a sorted array and a target value as input
Initialize two pointers, low and high, to the start and end of the array respectively
While low is less than or equal to high, calculate mid as (low + high) // 2 and compare array[mid] with target
If array[mid] is equal to target, return mid
If array[mid] is less than target, update low to mid + 1
If array[mid]...
- Q4. Wap for check your name is palindrome not
- Ans.
A program to check if a given name is a palindrome or not.
Convert the name to lowercase to handle case-insensitivity
Remove any spaces or special characters from the name
Reverse the name and compare it with the original name to check for palindrome
- Q5. What is malloc and calloc function
- Ans.
malloc and calloc are functions in C programming used for dynamic memory allocation.
malloc function is used to allocate a single block of memory of a specified size.
calloc function is used to allocate multiple blocks of memory of a specified size, initialized to zero.
Example: int *ptr = (int*)malloc(5 * sizeof(int));
Example: int *ptr = (int*)calloc(5, sizeof(int));
Interview Preparation Tips
- Basic programming
Skills evaluated in this interview
Pranab Das
I applied via Recruitment Consulltant and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. What is Virtual LAN?
- Q2. Difference between L2 &L3 switch?
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Senior Network Security Engineer Interview Questions & Answers
NTT Data
Omkar Shetye
posted on 11 Oct 2024
Selected
I applied via Naukri.com and was interviewed in Sep 2024. There were 3 interview rounds.
(2 Questions)
- Q1. ISE and Aci related questions
- Q2. Firewall and network related questions
(2 Questions)
- Q1. ACI related questions
- Q2. Firewall & Network related questions
(2 Questions)
- Q1. Company policy discussion
- Q2. Salary discussion
I applied via Company Website and was interviewed in Jul 2024. There were 3 interview rounds.
(2 Questions)
- Q1. UST is good interviewer is not good
- Q2. Even we don't know the question atleast Interviewer required minimum patience .Iritating
(2 Questions)
- Q1. Basic question only OSPF
- Q2. Load balancer configuration
(2 Questions)
- Q1. OSPF, Load balancer
- Q2. Load balancing configuration
Interview Preparation Tips
(3 Questions)
- Q1. Share you internship exp
- Ans.
I interned at a telecommunications company where I gained hands-on experience in configuring network devices and troubleshooting network issues.
Configured routers and switches to optimize network performance
Assisted in setting up VLANs and implementing security protocols
Troubleshooted network connectivity issues for end users
Participated in network infrastructure upgrades and maintenance
- Q2. All question based on the resume only
- Q3. Prepare whatever written in your resume
Interview Preparation Tips
Gowthaman Kutti
(2 Questions)
- Q1. BGP and ospf and vlan
- Q2. VSS and stacking switch
(2 Questions)
- Q1. BGP in depth ospf and vlan
- Q2. Vss and switch stacking switch routing
Interview Preparation Tips
(2 Questions)
- Q1. What is DNS please explain
- Ans.
DNS stands for Domain Name System, which translates domain names to IP addresses.
DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).
It helps users access websites by typing in easy-to-remember domain names instead of complex IP addresses.
DNS servers store records of domain names and their corresponding IP addresses, allowing for effi...
- Q2. What is DHCP please explain
- Ans.
DHCP stands for Dynamic Host Configuration Protocol, used to automatically assign IP addresses to devices on a network.
DHCP eliminates the need for manual IP address configuration on each device
It assigns IP addresses dynamically, allowing for efficient use of available addresses
DHCP servers lease IP addresses to devices for a specific period of time
DHCP also provides other network configuration information, such as su...
Skills evaluated in this interview
Normal aptitude group discussion assignment case study
Coding test assignment one on one round
(2 Questions)
- Q1. Technical vs no tech
- Ans.
Technical skills are essential for a Network Engineer, but soft skills are also important for effective communication and teamwork.
Technical skills are necessary for configuring and troubleshooting network devices.
Soft skills like communication, teamwork, and problem-solving are crucial for working effectively with colleagues and clients.
Balancing technical expertise with interpersonal skills is key to success in the r...
- Q2. Dhcp vs dns gdp vs rdp frp vs 30nd
- Ans.
DHCP is a protocol used to assign IP addresses dynamically to devices on a network, while DNS is a system that translates domain names to IP addresses.
DHCP assigns IP addresses to devices on a network dynamically
DNS translates domain names to IP addresses
RDP (Remote Desktop Protocol) allows users to remotely connect to a computer
FRP (Fiberglass Reinforced Plastic) is a material used in construction
30nd does not seem to
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Skills evaluated in this interview
Network Administrator Interview Questions & Answers
Virtusa Consulting Services
Kanimozhi Stanislaus
posted on 8 Mar 2024
(4 Questions)
- Q1. DHCP working principles
- Ans.
DHCP assigns IP addresses to devices on a network automatically
DHCP server assigns IP addresses to devices on the network
DHCP clients request IP addresses from the DHCP server
DHCP uses a lease mechanism to manage IP address assignments
DHCP reduces the administrative burden of manually assigning IP addresses
- Q2. DNS working principles
- Ans.
DNS is a system that translates domain names to IP addresses to locate resources on the internet.
DNS resolves domain names to IP addresses
DNS operates through a distributed database system
DNS uses hierarchical structure with top-level domains like .com, .org, etc.
DNS queries are resolved through recursive and iterative processes
- Q3. Scenario based question DHCP
- Q4. Spanning tree protocol
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