Mavenir Systems Interview Questions and Answers

Q1. Questions about kubernetes and 5gc
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Q2. Containers and implementation of pods for 5gc
Ans. 
Containers and pods are commonly used in 5G core networks for efficient deployment and scaling of network functions.
• Containers provide lightweight, isolated environments for running applications, making them ideal for deploying network functions in 5G core networks.

• Pods in Kubernetes are groups of one or more containers that share resources and networking, allowing for easier management and scaling of network functions...read more
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Q1. Previous company and package negotiation
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C and Golang related questions, 2 Hours assement, The test involved writing code by hand in paper in the office (Bengaluru)

Q1. Write a go code to remove duplicate elements from a slice.
Ans. 
Go code to remove duplicate elements from a slice of strings
• Use a map to keep track of unique elements

• Iterate over the slice and add elements to the map

• Create a new slice with unique elements from the map
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Q2. Difference between array and slice in Go.
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Arrays have fixed length, slices are dynamic and can grow/shrink. Slices are references to arrays.
• Arrays have fixed length, specified at compile time.

• Slices are dynamic, can grow or shrink at runtime.

• Slices are references to arrays, allowing for more flexibility.

• Example: var arr [3]string // array with fixed length of 3

• Example: slice := make([]string, 0) // slice with dynamic length
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Q3. Explain struct and interface
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Struct is a user-defined data type that groups related data fields together. Interface defines a set of methods that a type must implement.
• Struct is used to create complex data structures by grouping related data fields together.

• Interface defines a set of methods that a type must implement. It allows for polymorphism in Go.

• Example: type Person struct { Name string; Age int }

• Example: type Shape interface { Area() float6...read more
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Q4. What is containerization.
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Q5. Write a go code to implement struct.
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Implementing a struct in Go code
• Define a struct using the 'type' keyword

• Add fields to the struct with their respective data types

• Access struct fields using dot notation
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Q6. Explain goroutine.
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Q7. How do you achieve concurrency in Go?
Ans. 
Concurrency in Go is achieved using goroutines and channels.
• Use goroutines to run functions concurrently

• Communicate between goroutines using channels

• Avoid using shared memory for synchronization
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Q8. What is channel in Go? What are the differences between buffered and unbuffered channel?
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A channel in Go is a communication mechanism that allows goroutines to communicate with each other.
• Buffered channels have a specific capacity and can send multiple values without the need for a corresponding receive operation immediately.

• Unbuffered channels have no capacity and require both a send and receive operation to be ready at the same time for communication to occur.
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Q9. What is scaling? Horizontal and vertical scaling.
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Scaling refers to the ability of a system to handle increasing amounts of work or its potential to accommodate growth.
• Horizontal scaling involves adding more machines to distribute the load, while vertical scaling involves increasing the resources of a single machine.

• Horizontal scaling is more cost-effective and provides better fault tolerance, but can be more complex to implement.

• Vertical scaling is simpler to impleme...read more
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Q1. Telecom based questions AND ABOUT YOUR PREVIOUS PRODUCT
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Q2. C++ basic questions along with some data structures
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Q1. 5g Architecture
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Q2. M-Plane Process
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Q1. 5G Layers & their nodes
Ans. 
5G network is divided into three main layers: Radio Access Network (RAN), Transport Network, and Core Network.
• Radio Access Network (RAN) includes base stations and antennas for wireless communication.

• Transport Network connects RAN to Core Network, using technologies like fiber optics.

• Core Network manages user authentication, mobility, and data routing.

• Examples: RAN - gNodeB, Transport Network - Optical fiber, Core Netw...read more
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Q2. OOPS concept, Automation project
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