Elektrobit India Engineer Trainee Interview Questions and Answers

Q1. What is dns Explain OSI model
Ans. 
DNS is a system that translates domain names into IP addresses.
• DNS stands for Domain Name System

• It is responsible for resolving domain names to IP addresses

• It uses a hierarchical naming system

• DNS servers store information about domain names and their corresponding IP addresses

• Examples of DNS servers include Google DNS and OpenDNS
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Q2. What is DHCP Explain TCP UDP
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DHCP is a network protocol that assigns IP addresses to devices on a network. TCP and UDP are transport layer protocols used for data transmission.
• DHCP stands for Dynamic Host Configuration Protocol

• It automatically assigns IP addresses to devices on a network

• It also provides other network configuration information such as subnet mask and default gateway

• TCP stands for Transmission Control Protocol

• It is a connection-orie...read more
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Easy level aptitude. Basic questions only.

Basic common question

Q1. Basic technical round. Good to have knowledge on OOPS, SQL and any programming language basic level
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There were easy to moderate questions asked , if prepared well can easily clear apti round , i'll suggest arun sharma for this preparation

Coding round was there and outputs were asked

Q1. One on one round with HR was scheduled
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Q1. Recovery models of sql server
Ans. 
SQL Server has three recovery models: Simple, Full, and Bulk-Logged.
• Simple recovery model: minimally logged, no log backups, only full backups

• Full recovery model: fully logged, allows for point-in-time recovery, requires log backups

• Bulk-Logged recovery model: minimally logged for bulk operations, requires log backups for point-in-time recovery
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Q2. DMVs in sql server
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DMVs in SQL Server are dynamic management views that provide information about the current state of the SQL Server instance.
• DMVs can be used to monitor performance, troubleshoot issues, and gather information about the server.

• Examples of DMVs include sys.dm_exec_requests, sys.dm_os_wait_stats, and sys.dm_db_index_physical_stats.
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Q1. How do you tackle difficult scenarios in project
Ans. 
I tackle difficult scenarios in projects by breaking them down, seeking input from team members, and staying organized.
• Break down the problem into smaller, manageable tasks

• Seek input and feedback from team members to gain different perspectives

• Stay organized by creating a timeline and setting priorities

• Communicate openly with stakeholders to address any challenges or roadblocks

• Stay calm and focused under pressure to ma
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Q1. CTC discussion went on
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Q1. How to communicate between microservices
Ans. 
Communication between microservices is typically done through APIs, messaging queues, or service meshes.
• Use RESTful APIs for synchronous communication between microservices

• Implement messaging queues like RabbitMQ or Kafka for asynchronous communication

• Utilize service meshes like Istio for managing communication between microservices
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Q2. 2. Java 8 grouping by coding
Ans. 
Grouping in Java 8 allows elements to be grouped based on a common attribute or condition.
• Use the Collectors.groupingBy() method to group elements in a stream based on a specified classifier function.

• The classifier function determines how elements are grouped.

• Grouping can be done on any type of object, such as strings, integers, or custom objects.

• For example, to group a list of Person objects by their age: Map<Integ...read more
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Q3. Asynchronous communication
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Q4. Spring security basics
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