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Hotel Keys Technical Support Engineer Interview Questions and Answers
Hotel Keys Technical Support Engineer Interview Experiences
1 interview found
Anonymous
(1 Question)
- Q1. SQL questions on joins
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I applied via Naukri.com and was interviewed before Nov 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Basic Questions about core concept.
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. 1. Explain SCD Type 2 Implementation in Informatica
- Ans.
SCD Type 2 is a technique used to track historical changes in data over time in a data warehouse.
SCD Type 2 maintains a separate row for each change in data, with a start and end date.
It requires a surrogate key to uniquely identify each row.
Informatica provides a built-in SCD Type 2 transformation to implement this technique.
Example: tracking changes in customer addresses over time.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jul 2019. There were 5 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Oops concept(questions from all the 4 oops concept)
- Q2. Serialization( transient, externalisation),string,singleton class,string reverse program, pattern program, exception handling , output questions, multithreading, collections, working of hashmap, concurrent...
- Q3. Spring, Ioc, Dependency injection, autowiring, spring MVC flow
- Q4. Then in managerial round ,they were asking about the roles and responsibilities ,how to handle production issues etc
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Basic core java and java 8 question, microservices and spring boot question ...and 2 programs
Interview Preparation Tips
I applied via Approached by Company and was interviewed before Sep 2021. There were 3 interview rounds.
Coding test like mcqs and a simple dry run.
(1 Question)
- Q1. Technical with some coding
Regarding project and interaction with management level people
Interview Preparation Tips
I appeared for an interview in Aug 2021.
(4 Questions)
Round duration - 60 minutes
Round difficulty - Medium
Technical Interview round with questions on C#, Design patterns, OOPS etc.
- Q1. What is a base class?
- Ans.
A base class is a class that is used as a starting point for creating other classes. It can be inherited by other classes.
Base class provides common attributes and methods that can be inherited by other classes
Derived classes can extend or override the functionality of the base class
Example: Animal can be a base class with attributes like name and methods like eat, sleep
- Q2. What is a singleton design pattern?
- Ans.
Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
Used to restrict the instantiation of a class to one object
Commonly used in logging, caching, thread pools, database connections
Implemented by creating a static instance of the class and a private constructor to prevent external instantiation
- Q3. What are the different access modifiers in C#?
- Ans.
Access modifiers in C# control the visibility and accessibility of classes, methods, and other members.
Public - accessible from any other class or assembly
Private - accessible only within the same class
Protected - accessible within the same class or derived classes
Internal - accessible within the same assembly
Protected Internal - accessible within the same assembly or derived classes
- Q4. What is the default access modifier in C#?
- Ans.
The default access modifier in C# is 'private'.
Default access modifier is applied if no access modifier is specified for a class member
It restricts the access to the member within the same class
Example: private int myVariable = 10;
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
(4 Questions)
- Q1. Data structure and algorithm
- Q2. Some tricky logical question
- Q3. Stack and queue
- Q4. Some basic question about system Design
Selected
I applied via LinkedIn and was interviewed before Feb 2023. There was 1 interview round.
(2 Questions)
- Q1. Components of service
- Ans.
Components of a service include functionality, reliability, availability, and performance.
Functionality: The service should perform the intended tasks and meet the requirements.
Reliability: The service should consistently deliver the expected results.
Availability: The service should be accessible and operational when needed.
Performance: The service should perform efficiently and meet performance expectations.
- Q2. Lifecycles of web api
- Ans.
The lifecycle of a web API refers to the stages it goes through from development to retirement.
The lifecycle typically includes stages like planning, development, testing, deployment, and retirement.
During planning, the requirements and design of the API are defined.
Development involves writing the code and implementing the functionality.
Testing ensures the API works as expected and meets the requirements.
Deployment in...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Aug 2021. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. What is aingleton and how it ia thread safe?
- Ans.
Singleton is a design pattern that restricts the instantiation of a class to one object and provides a global point of access.
Singleton ensures that only one instance of a class is created and provides a way to access it globally.
It is thread-safe because the instance is created only once and accessed through a synchronized method or block.
Singleton can be implemented using different approaches such as eager initializa...
- Q2. What ia base class of class in c#?
- Ans.
Object class is the base class of all classes in C#.
Object class provides basic functionalities like ToString(), GetHashCode(), and Equals() to all classes.
All classes in C# implicitly inherit from Object class.
Object class is defined in System namespace.
Example: class MyClass : Object { }
- Q3. Access modifiers in c#
- Ans.
Access modifiers in C# control the visibility and accessibility of class members.
Public: accessible from anywhere
Private: accessible only within the class
Protected: accessible within the class and derived classes
Internal: accessible within the same assembly
Protected Internal: accessible within the same assembly and derived classes
Example: public int age; private string name;
Example: protected void DoSomething(); intern
- Q4. Default aceess modifiers?
- Ans.
Default access modifiers are public, protected, and private.
Public: accessible from anywhere
Protected: accessible within the class and its subclasses
Private: accessible only within the class
Interview Preparation Tips
Skills evaluated in this interview
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Hotel Keys Technical Support Engineer Interview Process
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