NTT Data Senior Security Engineer Interview Questions and Answers

Handling escalations involves prompt communication, prioritization, and collaboration with stakeholders.

• Acknowledge the escalation and gather all relevant information

• Assess the severity and prioritize based on impact

• Communicate with stakeholders and provide regular updates

• Collaborate with cross-functional teams to resolve the issue

• Document the escalation and resolution process for future reference

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

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

Virtual router and virtual system play a crucial role in network security by providing isolated environments for routing and security policies.

• Virtual router is a software-based routing instance that operates within a virtualized environment.

• Virtual system is a logical division of a physical firewall that allows for separate security policies and configurations.

• Both virtual router and virtual system help in creating is...read more

App-ID and Content-ID are features used in network security to identify and control applications and content.

• App-ID is used to identify applications based on their behavior, not just port and protocol

• Content-ID is used to identify and control content within applications

• Both features are commonly used in next-generation firewalls for advanced security policies

• Example: App-ID can identify and block social media applicati...read more

U-turn NAT is a network configuration where traffic enters and exits the same interface on a network device.

• U-turn NAT is also known as hairpin NAT or NAT loopback.

• It allows internal hosts to access resources using their public IP address from within the same network.

• This is commonly used in scenarios where internal hosts need to access a server using its public IP address.

• U-turn NAT can be configured on firewalls or r

A service route is the path that a service takes to reach its destination, including all the network devices it passes through.

• Service routes can include routers, switches, firewalls, and other network devices.

• Understanding service routes is important for network security to identify potential vulnerabilities or points of failure.

• Examples of service routes include the path an email takes from sender to recipient, or th...read more

Wildfire is a type of malware analysis service provided by Palo Alto Networks.

• Malware analysis service

• Identifies and blocks unknown threats in real-time

• Utilizes machine learning and AI for threat detection

Mitre frameworks provide a structured approach to categorize and analyze cyber threats, mapping them against known attack techniques.

• Mitre frameworks such as ATT&CK provide a comprehensive list of known adversary tactics and techniques.

• Security analysts use these frameworks to map observed threats and attacks to specific techniques, aiding in threat intelligence and incident response.

• By aligning observed behaviors with...read more

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

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

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

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