Coforge Interview Questions, Process, and Tips

Q1. How ospf is works ?
Ans. 
OSPF (Open Shortest Path First) is a routing protocol that uses link-state routing algorithm to determine the best path for data packets.
• OSPF routers exchange link-state advertisements (LSAs) to build a topology map of the network.

• Each router calculates the shortest path to each network based on the information in the LSAs.

• OSPF uses cost as a metric to determine the best path, with lower cost paths being preferred.

• OSPF...read more
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Q2. What is bgp parameter ?
Ans. 
BGP parameter refers to the various attributes and settings used in the Border Gateway Protocol for routing decisions.
• BGP parameters include attributes like AS path, next hop, local preference, and MED.

• These parameters help BGP routers make decisions on the best path to reach a destination.

• Examples of BGP parameters are weight, local preference, and community values.
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Q1. What network works and implements parts
Ans. 
Network works and implements parts refer to the components and protocols involved in the functioning of a network.
• Network devices such as routers, switches, firewalls, and access points work together to facilitate communication.

• Protocols like TCP/IP, DNS, DHCP, and SSL/TLS are implemented to ensure data transmission and security.

• Network segmentation, VLANs, and VPNs are used to separate and secure different parts of a ...read more
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Q2. Wireless wlc vlan configuration
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Q3. Switch configuration
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Q1. OOPS concepts with examples
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OOP concepts include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Encapsulation: Bundles data and methods that operate on the data into a single unit. Example: private variables with public methods.

• Polymorphism: Allows objects of different classes to be treated as objects of a common supercl...read more
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Q2. Explain NF in sql & ACID concepts
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NF in SQL refers to Normal Form which is used to eliminate redundancy in database design. ACID concepts ensure data integrity in transactions.
• NF in SQL stands for Normal Form and is used to organize data in a database to eliminate redundancy and dependency.

• There are different levels of NF such as 1NF, 2NF, 3NF, and BCNF, each with specific rules to follow.

• ACID concepts (Atomicity, Consistency, Isolation, Durability) en...read more
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Q1. Questions related to Airline domain mostly- GDS, others
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Q2. HTTP methods in API - post, put, patch, error codes
Ans. 
HTTP methods in API include post, put, patch, and error codes for handling requests and responses.
• POST method is used to create a new resource on the server

• PUT method is used to update an existing resource on the server

• PATCH method is used to partially update an existing resource on the server

• Error codes such as 400 for Bad Request, 404 for Not Found, and 500 for Internal Server Error are used to indicate the status of
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Q3. Introduction , current role
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Mixed questions from aptitude, reasoning and english questions.

Q1. Basic questions from Manual Testing and SQL
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Q1. Basic interview and salary discussion
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Q1. How the elastic stack work?
Ans. 
The Elastic Stack is a collection of open-source tools for data ingestion, storage, search, and visualization.
• Elasticsearch is used for storing and searching data

• Logstash is used for data collection and processing

• Kibana is used for data visualization and analysis

• Beats are lightweight data shippers that send data from edge machines to Elasticsearch or Logstash
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Q1. What are distributes transactions and how these can be handled in microservices
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Distributed transactions involve multiple systems coordinating to ensure data consistency across different services in a microservices architecture.
• Distributed transactions involve multiple services or databases working together to ensure data consistency.

• In microservices, handling distributed transactions can be challenging due to the decentralized nature of the architecture.

• One approach to handling distributed transa...read more
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Q2. Spring boot @Transactional annotation working
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Calculate the sum between two positive integers in an array.