Happiest Minds Technologies Senior Engineer Interview Questions and Answers

Q1. What is n-tier architecture
Ans. 
n-tier architecture is a software design pattern that divides an application into logical layers.
• It separates presentation, application processing, and data management functions.

• Each layer can be developed and maintained independently.

• Examples include 3-tier and 4-tier architectures.

• It improves scalability, maintainability, and flexibility of the application.
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Q1. What is your expectation from company
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Q1. What is your job role
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Q1. What is AD dns dhcp?
Ans. 
AD DNS DHCP are Microsoft technologies used for network management and authentication.
• Active Directory (AD) is a directory service used for authentication and authorization of users and computers in a network.

• Domain Name System (DNS) is used for name resolution of network resources.

• Dynamic Host Configuration Protocol (DHCP) is used for automatic IP address assignment to network devices.

• AD, DNS, and DHCP are often used ...read more
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Q2. What is IaaS SaaS PaaS?
Ans. 
IaaS, SaaS, and PaaS are cloud computing models that provide different levels of infrastructure, software, and platform services.
• IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet, such as servers, storage, and networking.

• SaaS (Software as a Service) delivers software applications over the internet, eliminating the need for local installation and maintenance.

• PaaS (Platform as ...read more
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