10+ HARMAN Interview Questions and Answers for Freshers

A ticketing tool is a software used to manage and track customer support requests or incidents.

• It allows users to submit tickets or requests for assistance.

• It assigns tickets to appropriate support staff for resolution.

• It tracks the status and progress of each ticket until it is resolved.

• It provides reporting and analytics on ticket volume, resolution time, and customer satisfaction.

• Examples include ServiceNow, JIRA Service Desk, and Zendesk.

A subnet is a smaller network within a larger network. The subnet of 120 depends on the subnet mask.

• Subnet is a way to divide a larger network into smaller ones

• Subnet mask determines the size of the subnet

• Subnetting helps in efficient use of IP addresses

• The subnet of 120 depends on the subnet mask used

Activity lifecycle refers to the series of states an activity goes through during its lifetime in an Android app.

• onCreate() - activity is created

• onStart() - activity becomes visible to the user

• onResume() - activity is interacting with the user

• onPause() - activity is partially visible but still running

• onStop() - activity is no longer visible to the user

• onDestroy() - activity is being destroyed

MVVM is an architectural pattern used in software development, particularly in Android apps, to separate the user interface from the business logic.

• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View is the UI component that displays the data and interacts with the user

• ViewModel acts as a mediator between the Model and the View, handling user interactions and updating the Model

• MVVM helps in separating concerns, making code more modular and eas...read more

DHCP is a protocol that assigns IP addresses to devices on a network. DNS is a system that translates domain names to IP addresses.

• DHCP stands for Dynamic Host Configuration Protocol

• DHCP assigns IP addresses to devices on a network

• DNS stands for Domain Name System

• DNS translates domain names to IP addresses

• DNS is used to access websites and other resources on the internet

Domain is a centralized network where computers are managed by a server, while workgroup is a decentralized network where computers are managed individually.

• Domain is managed by a domain controller server, while workgroup has no centralized server.

• Domain allows for centralized management of user accounts, security policies, and resources, while workgroup does not.

• Domain allows for easier scalability and security, while workgroup is more suitable for small networks with fewer ...read more

Find all permutations of palindromes in an array of strings.

• Iterate through each string in the array.

• For each string, generate all possible permutations.

• Check if each permutation is a palindrome.

• Return the list of palindromic permutations.

Code to identify even numbers

• Use the modulo operator (%) to check if a number is divisible by 2

• If the remainder is 0, then the number is even

• Example: int num = 6; if(num % 2 == 0) { // num is even }

Swapping numbers using bit operators.

• Use XOR operator to swap two numbers without using a temporary variable

• XORing a number with itself results in 0

• Example: a = 5, b = 7. a ^= b; b ^= a; a ^= b; // a = 7, b = 5

Various star patterns can be printed using loops and nested loops in Python.

• Use nested loops to print different patterns of stars.

• Patterns can include right triangle, left triangle, diamond, square, etc.

• Adjust the number of rows and columns in the loops to create different patterns.

Toggle a bit in a binary number

• Convert the number to binary representation

• Identify the bit position to toggle

• Toggle the bit using bitwise XOR operator

• Convert the modified binary number back to decimal

Access modifiers are keywords in C++ that control the visibility and accessibility of class members.

• Access modifiers include public, private, and protected.

• Public members are accessible from outside the class.

• Private members are only accessible within the class.

• Protected members are accessible within the class and its subclasses.

ACF measures the linear relationship between an observation and its lagged values. PACF measures the direct relationship.

• ACF (Autocorrelation Function) measures the correlation between an observation and its lagged values.

• PACF (Partial Autocorrelation Function) measures the correlation between an observation and its lagged values, while removing the indirect effects of intermediate lags.

• ACF is used to identify the order of an AutoRegressive (AR) model.

• PACF is used to identify...read more