TCS Interview Questions and Answers

Clustering is the process of grouping similar objects together based on certain criteria.

• Clustering is used in various fields like data analysis, machine learning, and network management.

• Types of clustering include hierarchical clustering, k-means clustering, and density-based clustering.

• Hierarchical clustering creates a tree-like structure of clusters.

• K-means clustering partitions data into k clusters based on similarity.

• Density-based clustering groups objects based on their...read more

Types of servers include rack, tower, and blade servers.

• Rack servers are designed to be mounted in a rack enclosure and are commonly used in data centers.

• Tower servers are standalone units that resemble a desktop computer and are suitable for small businesses or remote offices.

• Blade servers are compact units that fit into a chassis and share power, cooling, and networking resources.

• Other types of servers include microservers, mainframes, and virtual servers.

Virtualization is the process of creating a virtual version of something, such as an operating system, server, or network resource.

• Virtualization allows multiple virtual instances to run on a single physical machine.

• It enables better utilization of hardware resources and improves scalability and flexibility.

• Examples include virtual machines (VMs), virtual networks, and virtual storage.

• Virtualization can be used for server consolidation, software testing, and creating isolated...read more

Backup is necessary to protect data from loss or corruption.

• Backup ensures data can be restored in case of accidental deletion, hardware failure, or natural disasters.

• It provides a way to recover from ransomware attacks or other malicious activities.

• Backup allows for version control and the ability to revert to previous states of data.

• It safeguards against human errors, such as mistakenly modifying or deleting important files.

• Backup is essential for business continuity and me...read more

Management IP is used to remotely manage and monitor network devices.

• Management IP is a unique IP address assigned to a network device for administrative purposes.

• It allows system administrators to remotely access and configure the device.

• Management IP is used for tasks like monitoring device performance, troubleshooting, and applying updates.

• It provides a secure way to manage network devices without physically being present.

• Examples of management IP include the IP address as...read more

SSH is a secure protocol used for remote login and file transfer, while Telnet is an insecure protocol used for remote login.

• SSH encrypts the data transmitted over the network, while Telnet sends data in plain text.

• SSH uses public-key cryptography for authentication, while Telnet uses username and password.

• SSH provides secure remote access to servers, while Telnet lacks security measures.

• SSH is the recommended protocol for remote administration, while Telnet is outdated and i...read more

Answering technical questions related to tecert command, ADDS, IP, and difference between hardware and software.

• tecert command is used to manage certificates in Windows operating system

• ADDS stands for Active Directory Domain Services, used for managing users and computers in a network

• IP stands for Internet Protocol, used for communication between devices on a network

• Hardware refers to physical components of a computer system, while software refers to programs and applications...read more