40+ Tatva Interiors Interview Questions and Answers

BGP is used for routing and exchanging routing information between different autonomous systems.

• BGP allows for dynamic routing between different autonomous systems

• It provides redundancy and load balancing by choosing the best path for data traffic

• BGP helps in preventing network loops and ensuring efficient data routing

• It is commonly used by Internet Service Providers (ISPs) to exchange routing information

• BGP is essential for maintaining a stable and scalable internet infrastr...read more

Configurations required in wireless networking include SSID, security settings, encryption type, and channel selection.

• Set up a unique SSID to identify the network

• Choose appropriate security settings such as WPA2-PSK

• Select encryption type like AES for secure data transmission

• Optimize channel selection to avoid interference

Callback is a function passed as an argument to another function to be executed later. Callback hell is the nesting of multiple callbacks resulting in unreadable code.

• Callback is a function passed as an argument to another function, to be executed later.

• Callback hell occurs when multiple callbacks are nested, leading to unreadable and difficult to maintain code.

• To prevent callback hell, use Promises, async/await, or modularize code into smaller functions.

To initialize a WebDriver object for controlling the Chrome browser.

• To interact with the Chrome browser using Selenium WebDriver

• To perform automated testing on web applications

• To access the browser's functionalities and manipulate web elements

Yes, {cat, Act} & {mary, Army} are anagrams.

• Convert both words to lowercase to ignore case sensitivity.

• Sort the characters in both words alphabetically.

• Check if the sorted characters in both words are equal.

Gradient boosted trees improve decision trees by combining multiple weak learners to create a strong learner.

• Gradient boosted trees build trees sequentially, with each tree correcting errors made by the previous one

• They use gradient descent to minimize the loss function, leading to better overall performance

• By combining multiple trees, gradient boosted trees reduce overfitting and improve accuracy

• Example: XGBoost, LightGBM, and CatBoost are popular implementations of gradient...read more

Reverse a string while keeping numbers and symbols in their original positions.

• Iterate through the string and store the positions of numbers and symbols.

• Reverse the string using a two-pointer approach.

• Place the numbers and symbols back in their original positions.

var is function scoped, let is block scoped, and const is block scoped with read-only values.

• var is function scoped, meaning it is accessible throughout the function it is declared in.

• let is block scoped, meaning it is only accessible within the block it is declared in.

• const is block scoped like let, but the value cannot be reassigned.

Different types of VPNs include remote access VPN, site-to-site VPN, and client-to-site VPN.

• Remote access VPN allows individual users to connect to a private network remotely.

• Site-to-site VPN connects multiple networks together over the internet.

• Client-to-site VPN allows individual devices to connect to a private network remotely.

• Other types include MPLS VPN, SSL VPN, and IPsec VPN.

The purpose of native VLAN is to carry untagged traffic across a trunk link.

• Native VLAN is used for untagged traffic on a trunk link

• It allows devices that do not support VLAN tagging to communicate over the trunk link

• Native VLAN should be the same on both ends of the trunk link to avoid VLAN hopping attacks

Yes, I have experience in configuring and managing HP Aruba Switches.

• I have worked with HP Aruba Switches for over 2 years

• I have configured VLANs, port security, and QoS on these switches

• I have also troubleshooted and resolved network issues on these switches

• I am familiar with the CLI and GUI interfaces of HP Aruba Switches

An interface in software development is a contract that defines the methods that a class must implement.

• Interfaces allow for multiple inheritance in programming languages that do not support it.

• Interfaces provide a way to achieve abstraction in code, making it easier to maintain and extend.

• Interfaces are used to define a set of methods that a class must implement, ensuring consistency and interoperability.

• Example: Java interfaces are used to define methods that classes must i...read more

SQL Server performance tuning involves optimizing database design, query optimization, and server configuration.

• Identify and optimize poorly performing queries

• Ensure proper indexing and partitioning

• Monitor server resources and adjust configuration as needed

• Regularly analyze and optimize database design

• Use tools like SQL Profiler and Database Engine Tuning Advisor

• Consider implementing caching and compression techniques

• Regularly review and adjust security settings

• Collaborate wi...read more

A switch stack is a group of network switches that are interconnected and operate as a single unit.

• Switch stack simplifies network management by allowing multiple switches to be managed as one entity.

• It provides high availability and redundancy by allowing one switch to take over if another fails.

• Switch stack can also increase network performance by load balancing traffic across multiple switches.

• Examples of switch stack technologies include Cisco StackWise, HP Intelligent Re...read more

Cost function is used to measure the cost of a single training example, while loss function is used to measure the overall performance of the model.

• Cost function is used during the training process to update the model parameters, while loss function is used to evaluate the model's performance.

• Cost function is typically a mathematical formula that calculates the error between predicted and actual values for a single training example.

• Loss function is a more general term that ca...read more

DaemonSet ensures a pod runs on all nodes, StatefulSet ensures ordered deployment and scaling of pods.

• DaemonSet ensures a pod runs on all nodes in a cluster

• StatefulSet ensures ordered deployment and scaling of pods

• DaemonSet is typically used for monitoring or logging agents

• StatefulSet is used for stateful applications like databases

Yes, I have console access.

• I have console access and can troubleshoot any issues remotely.

• I can access the console through SSH or remote desktop.

• Having console access allows me to perform maintenance tasks and updates.

To manage a disk full situation, you can identify large files, delete unnecessary files, clear cache, and resize partitions.

• Identify large files taking up space using tools like du or ncdu.

• Delete unnecessary files or move them to another storage device.

• Clear cache to free up space, such as package cache or browser cache.

• Resize partitions to allocate more space to the full disk.

Closures are functions that have access to their own scope, as well as the scope in which they were defined.

• Closures allow functions to access variables from their parent function even after the parent function has finished executing.

• Closures are created whenever a function is defined within another function.

• Closures are commonly used in event handlers, callbacks, and in functional programming.

ES6 (ECMAScript 2015) introduced several new features to JavaScript, making the language more powerful and expressive.

• Arrow functions for concise syntax: const add = (a, b) => a + b;

• Let and const for block-scoped variables: let x = 5; const y = 10;

• Template literals for string interpolation: const name = 'Alice'; console.log(`Hello, ${name}!`);

• Destructuring assignment for easily extracting values from arrays or objects: const { firstName, lastName } = person;

• Classes for object...read more

Kubernetes (k8s) architecture is designed to be highly scalable, flexible, and resilient.

• Kubernetes follows a master-slave architecture, with a master node managing the cluster and worker nodes running applications.

• The master node consists of components like API server, scheduler, controller manager, and etcd for storing cluster data.

• Worker nodes have components like kubelet, kube-proxy, and container runtime (e.g. Docker) to run and manage containers.

• Kubernetes architecture ...read more