D-VoiS Communications Network Support Engineer Interview Questions and Answers

Q1. They asked me about me
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Q2. HR asked about the job role
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They ware asked me about related my job position quetion

Q1. They asked me about my job discription
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Q1. Basic PHP Questions on Arrays, implode, explode function difference, include, require difference.etc
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Q2. Basics MySQL questions, asked some queries
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Q1. Asked questions based on payment gateway.
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Q1. Salary discussion, explained roles and responsibilities
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Hacker rank test was given. 30 mcq and 1 coding test. Test duration is 1 hour. Core java and spring boot questions were covered.

Q1. Core Java, spring annotations, hashmap internal working, exception handling, working of rest controller, Java 8 features, code using streams api, multithreading concepts
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Q1. Microservice architecture, working of spring Mvc, communications between microservice, actuator, swagger, why microservice is implemented, spring vs spring boot, design patterns used, questions related to ...read more
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Sdwan, osi layer tcp ,udp,ip addressing,

Q1. SDWAN, ip addressing ,subnetting, osi modle
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60 minutes 60 aptitude and logical reasoning questions questions

Q1. Can you write a program to demonstrate soccket programming
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Yes
• Socket programming is a way to establish communication between two computers over a network using sockets.

• It involves creating a socket, binding it to an IP address and port, listening for incoming connections, and sending/receiving data.

• Examples of socket programming include creating a chat application, a file transfer program, or a web server.
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Q2. What do you know about ipv4 vs ipv6,ip masking and more computer network related stuff
Ans. 
IPv4 and IPv6 are internet protocol versions. IP masking is a technique to hide IP addresses.
• IPv4 is the fourth version of the Internet Protocol, while IPv6 is the sixth version.

• IPv4 uses 32-bit addresses, allowing for approximately 4.3 billion unique addresses.

• IPv6 uses 128-bit addresses, providing a significantly larger address space.

• IP masking, also known as IP anonymization, is the process of hiding the IP address ...read more
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They will give 3 questions

Q1. There will be technical round after finishing of exam
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Q2. And HR round also will be same time of Technical
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