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I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
DNS stands for Domain Name System and its purpose is to translate domain names into IP addresses.
DNS helps users easily access websites by translating human-readable domain names (e.g. www.google.com) into machine-readable IP addresses (e.g. 172.217.3.206).
It helps in load balancing by distributing traffic among multiple servers based on the IP address resolved by DNS.
DNS also provides redundancy and fault tolerance by...
CIA Triad is a foundational concept in cybersecurity that stands for Confidentiality, Integrity, and Availability.
Confidentiality ensures that data is only accessible to authorized individuals.
Integrity ensures that data is accurate and has not been tampered with.
Availability ensures that data is accessible when needed, without interruption.
Examples: Encrypting sensitive information for confidentiality, using checksums...
Encryption and decryption come under the confidentiality part of the CIA triad.
Encryption and decryption are used to protect sensitive information from unauthorized access.
Confidentiality ensures that only authorized users can access the data.
Examples of encryption methods include AES, RSA, and DES.
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 network traffic based on rules set by the administrator
Can be hardware-based or software-based
Examples include Cisco ASA, Palo Alto Networks, and pfSense
IDS detects and logs potential security threats, while IPS actively blocks and prevents them.
IDS stands for Intrusion Detection System, which monitors network traffic for suspicious activity and alerts the administrator.
IPS stands for Intrusion Prevention System, which not only detects threats like IDS but also takes action to block or prevent them.
IDS is passive in nature, while IPS is active and can automatically res...
A write blocker is a hardware device or software tool that prevents data from being written to a storage device.
Used in digital forensics to prevent accidental or intentional modification of data during analysis
Ensures the integrity of evidence by allowing read-only access to the storage device
Commonly used in investigations involving computers, mobile devices, and other digital media
Examples include Tableau write bloc
I applied via LinkedIn and was interviewed in Feb 2024. There were 2 interview rounds.
Splunk assignment was given and need to submit within the time
I applied via LinkedIn and was interviewed before Jul 2022. There were 3 interview rounds.
Creating Linux machine and rsyslog data logging
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Motors are rated in KW because they consume power, while transformers and generators are rated in KVA because they produce power.
Motors convert electrical energy into mechanical energy, so they consume power and are rated in KW.
Transformers and generators produce electrical energy, so they are rated in KVA based on their apparent power.
KVA takes into account both the real power (KW) and the reactive power (KVAR) produc...
The type of motor used in ceiling fans is an induction motor.
Ceiling fans typically use single-phase induction motors.
These motors are designed to provide a constant speed and are efficient in converting electrical energy into mechanical energy.
The motor consists of a stator and a rotor, with the stator being the stationary part and the rotor being the rotating part.
The stator contains windings that create a rotating m...
A thermal power plant generates electricity by converting heat energy into mechanical energy.
Thermal power plants use fossil fuels or nuclear energy to heat water and produce steam.
The steam drives a turbine, which is connected to a generator that produces electricity.
The heat source can be coal, natural gas, oil, or nuclear reactions.
The steam is condensed back into water and recycled in a closed-loop system.
Thermal p...
A program to generate a geometric progression (GP).
Take the first term, common ratio and number of terms as input.
Use a loop to calculate each term of the GP.
Print the generated GP as output.
A program to print factorial using recursion
Define a function to calculate factorial recursively
Base case: if the number is 0 or 1, return 1
Recursive case: multiply the number with factorial of (number - 1)
Print the factorial of a given number
Logic to reverse a string without using string functions
Iterate through the string from the last character to the first
Create a new string and append each character to it in reverse order
I know multiple programming languages including Java, Python, and C++.
Proficient in Java with experience in developing web applications using Spring framework
Familiar with Python for data analysis and machine learning
Experience in C++ for developing high-performance applications
Also familiar with HTML, CSS, and JavaScript for front-end development
Class is a blueprint for creating objects, encapsulation is the process of hiding data and methods within a class.
Class is a template or blueprint that defines the properties and behaviors of an object.
Encapsulation is the process of bundling data and methods together within a class, hiding the internal details from the outside world.
Other features of OOP include inheritance, polymorphism, and abstraction.
Inheritance a...
Program to find the sum of squares of each term of Fibonacci series
Generate Fibonacci series using loop or recursion
Calculate square of each term
Add all squares to get the sum
I would like to join Cognizant because of its reputation as a leading global technology and consulting company.
Cognizant has a strong presence in the industry and is known for its innovative solutions.
I am impressed by Cognizant's commitment to digital transformation and its ability to deliver value to clients.
The company offers excellent career growth opportunities and a supportive work environment.
Cognizant's diverse...
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