Nokia Senior Technical Specialist Interview Questions, Process, and Tips

Q1. Explain how you automate using Robot framework
Ans. 
I automate using Robot framework by creating test cases in a keyword-driven format and utilizing built-in libraries and custom keywords.
• Create test cases using Robot framework syntax

• Utilize built-in libraries for common tasks

• Develop custom keywords for specific automation needs

• Leverage variables and data-driven testing

• Integrate with external tools and APIs for comprehensive automation
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Q2. What was the toughest problem you identified and prevented from happening in field?
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Q1. Why did you choose Nokia?
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Q2. Why did you choose this domain for applying?
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Q1. How are micro services different from monolithic model?
Ans. 
Microservices are smaller, independent services that work together, while monolithic model is a single, large application.
• Microservices are smaller, independent services that can be developed, deployed, and scaled independently.

• Monolithic model is a single, large application where all components are tightly coupled.

• Microservices communicate with each other through APIs, while monolithic applications use in-process comm...read more
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Q2. Inter service communication in a distributed system
Ans. 
Inter service communication in a distributed system involves communication between different services to achieve a common goal.
• Use of APIs for communication between services

• Message queues for asynchronous communication

• Service discovery for locating and connecting to services

• Implementing protocols like REST, gRPC, or MQTT

• Handling communication failures and retries
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Q3. Explain pub sub model
Ans. 
Pub sub model is a messaging pattern where senders (publishers) of messages do not program the messages to be sent directly to specific receivers (subscribers).
• Publishers send messages to a central topic or channel without specifying the recipients

• Subscribers subscribe to the topics or channels they are interested in and receive messages from there

• Decouples the sender and receiver, allowing for more flexibility and sca...read more
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Implement synchronisation between Go routines

Q1. How Kubernetes handles scaling?
Ans. 
Kubernetes handles scaling by automatically adjusting the number of pods based on resource usage.
• Kubernetes uses Horizontal Pod Autoscaler (HPA) to automatically scale the number of pods based on CPU or memory usage.

• HPA adjusts the number of replicas of a Deployment, ReplicaSet, or StatefulSet.

• Kubernetes also supports Vertical Pod Autoscaler (VPA) for adjusting resource requests and limits of pods based on resource usa...read more
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Q2. Difference between containers and pods
Ans. 
Containers are a lightweight, standalone executable package that includes everything needed to run a piece of software, while pods are a group of one or more containers that share resources and are scheduled together on the same host.
• Containers are individual units of software that package up code and dependencies, while pods are a higher-level concept in Kubernetes that can contain one or more containers.

• Containers ar...read more
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Q1. Difficult situations handled in my career
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Q2. Why are you quitting your previous job?
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