Infosys Consulting Test Lead Interview Questions and Answers

There is online aptitude test as they followed

It is also a online assessment with some technical questions

Q1. About your certificates enquiry and location you require etc
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Q1. Tell me about your self?
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Q1. What is proxy server?
Ans. 
A proxy server acts as an intermediary between clients and servers, forwarding requests and responses.
• Proxy server acts as a middleman between clients and servers

• It forwards client requests to the appropriate server

• It caches data to improve performance

• It can be used for filtering and blocking certain content

• Examples: Squid, Nginx, Apache HTTP Server
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Q2. What is Dns? What is DHCP? Which port is useing smtp?
Ans. 
DNS is a system that translates domain names into IP addresses. DHCP is a protocol that assigns IP addresses to devices on a network. SMTP uses port 25.
• DNS stands for Domain Name System

• It translates domain names (e.g., www.example.com) into IP addresses (e.g., 192.168.1.1)

• DHCP stands for Dynamic Host Configuration Protocol

• It automatically assigns IP addresses to devices on a network

• SMTP stands for Simple Mail Transfer ...read more
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Q3. What is vpn? Which port use for DNS service?
Ans. 
VPN stands for Virtual Private Network. It provides a secure and encrypted connection over a public network.
• VPN allows users to access a private network remotely.

• It creates a secure tunnel between the user's device and the network.

• VPN masks the user's IP address and encrypts the data transmitted.

• It is commonly used for remote work, accessing geo-restricted content, and enhancing online privacy.

• Examples of VPN protocols
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Q4. Define colour stright through cable? If os corrupt. How it is resolved?
Ans. 
A color straight through cable is a type of Ethernet cable used to connect devices in a network.
• A color straight through cable is also known as a patch cable or a straight-through cable.

• It is used to connect devices such as computers, switches, and routers in a network.

• The cable has the same pin configuration on both ends, allowing for direct device-to-device connections.

• The color coding of the cable follows the T568A ...read more
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Create a business requirement document

Q1. What are the strengths and weakness
Ans. 
Strengths include strong analytical skills and attention to detail. Weaknesses may include difficulty with public speaking and time management.
• Strengths: strong analytical skills

• Strengths: attention to detail

• Weaknesses: difficulty with public speaking

• Weaknesses: time management
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Q1. Explain random forest
Ans. 
Random forest is an ensemble learning method that builds multiple decision trees and merges them to improve accuracy and prevent overfitting.
• Random forest is a type of ensemble learning method.

• It builds multiple decision trees during training.

• Each tree is built using a subset of the training data and a random subset of features.

• The final prediction is made by averaging the predictions of all the individual trees.

• Random...read more
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Q2. What is boosting
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Boosting is a machine learning ensemble technique where multiple weak learners are combined to create a strong learner.
• Boosting is an iterative process where each weak learner is trained based on the errors of the previous learners.

• Examples of boosting algorithms include AdaBoost, Gradient Boosting, and XGBoost.

• Boosting is used to improve the accuracy of models and reduce bias and variance.
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