NTT Data Security Specialist Interview Questions and Answers

Q1. What kind of vulnerability you came across
Ans. 
I came across a vulnerability in a web application that allowed for SQL injection attacks.
• Identified lack of input validation in user inputs

• Discovered that the application was directly executing user-supplied SQL queries

• Suggested implementing parameterized queries to prevent SQL injection

• Tested the vulnerability by attempting to inject SQL code through input fields
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Q2. What issues you face in management regarding reporting some security issues
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Q3. Tcp vs UDP which one is better
Ans. 
It depends on the specific use case and requirements.
• TCP is reliable and ensures all data is delivered in order, but it can be slower due to the overhead of error-checking and retransmission.

• UDP is faster and more efficient for real-time applications like video streaming or online gaming, but it does not guarantee delivery or order of packets.

• Choose TCP for applications that require reliable data transmission, such as ...read more
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Q4. Hashing and its examples in real world
Ans. 
Hashing is a process of converting input data into a fixed-size string of bytes using a mathematical algorithm.
• Hashing is commonly used in password storage to securely store user passwords without storing the actual password.

• Hashing is used in digital signatures to ensure the integrity of the signed data.

• Blockchain technology uses hashing to create a secure and tamper-proof record of transactions.

• File integrity checks ...read more
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Q5. Pop3 and icmp what are work and port no.
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Q1. Explain about SIEM TOOL and which SIEM tool you have used ?
Ans. 
SIEM (Security Information and Event Management) tool is a software solution that aggregates and analyzes security data from various sources.
• SIEM tools help in detecting and responding to security incidents in real-time.

• They provide centralized visibility into an organization's security posture.

• Examples of SIEM tools include Splunk, IBM QRadar, and ArcSight.

• I have experience using Splunk for log management and security
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Q2. Have you configured policies in defender ?
Ans. 
Yes, I have configured policies in defender.
• Yes, I have configured policies in Windows Defender to ensure proper security measures are in place.

• I have set up policies for malware protection, network protection, firewall settings, and device control.

• Regularly review and update policies to adapt to new threats and vulnerabilities.

• Example: Configuring Windows Defender policies to block certain file types from being downlo
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C,C#,C++,Dart,Go,Type script

Q1. How can you create a virus to correct a crashed server? Answer : a. Read all data console. B. using any server detector . C. Use advance knowledge on cybersecurity difference system to quick recreate. Answ...read more
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Q2. Answer my Q1 and try to contact me
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Q1. Mostly from tcp/ip , dns, dhcp and firewall
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Q1. Tcp/ip , dns , dhcp , paloalto firewall all features
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Q1. What is 3 way hand shaking
Ans. 
3 way hand shaking is a process in TCP/IP communication where three packets are exchanged to establish a connection.
• Three packets are involved: SYN, SYN-ACK, ACK

• SYN packet is sent by the client to the server to initiate the connection

• SYN-ACK packet is sent by the server to the client as a response

• ACK packet is sent by the client to the server to confirm the connection
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Q2. What is OSI Model
Ans. 
The OSI Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI Model stands for Open Systems Interconnection Model.

• It helps in understanding how data is transferred between devices in a network.

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

• Examples of layers include Physical, Data Link, Network, Transport, Sessio
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Q3. Tell about your work culture
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Q4. Difference between tcp and udp
Ans. 
TCP is connection-oriented, reliable, and slower, while UDP is connectionless, unreliable, and faster.
• TCP is connection-oriented, meaning it establishes a connection before sending data, while UDP is connectionless.

• TCP is reliable as it ensures all data is received in order and without errors, while UDP does not guarantee delivery.

• TCP is slower due to the overhead of establishing and maintaining connections, while UDP ...read more
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Q5. What is firewall
Ans. 
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
• Acts as a barrier between a trusted internal network and untrusted external network

• Filters traffic based on rules set by the network administrator

• Can be hardware-based or software-based

• Examples include Cisco ASA, Palo Alto Networks, and pfSense
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Q1. Prepare all the security topic which you have worked and hands on your resume.
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Q1. Security and VPN
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Q1. Tell me about yourself
Ans. 
I am a dedicated Security Analyst with a strong background in cybersecurity and risk management.
• Experienced in conducting security assessments and identifying vulnerabilities

• Skilled in implementing security measures to protect against cyber threats

• Proficient in analyzing security incidents and responding effectively

• Certified in relevant security certifications such as CISSP or CISM
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Q1. Different types of malware
Ans. 
Malware refers to malicious software designed to disrupt, damage, or gain unauthorized access to a computer system.
• Viruses: self-replicating programs that infect other files on a computer

• Worms: standalone malware that spreads across networks

• Trojans: disguised as legitimate software to trick users into installing them

• Ransomware: encrypts files and demands payment for decryption

• Spyware: secretly gathers information about...read more
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Q2. What would you first do if a machine is infected
Ans. 
The first step would be to isolate the infected machine from the network to prevent further spread of the infection.
• Isolate the infected machine from the network to prevent further spread of the infection

• Identify the type of malware or virus that has infected the machine

• Run a full system scan using antivirus software to detect and remove the malware

• Update the operating system and all software to patch any vulnerabiliti...read more
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