Erie Insurance Information Technology Intern Interview Questions and Answers

Q1. What is pointer
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Pointers are used to access and manipulate memory directly.

• They are commonly used in programming languages like C and C++.

• Example: int *ptr; // declares a pointer to an integer variable
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Q1. Difference b/w map and array in CPP. What are generators in Python. What is Polynomial Regression? Normalisation in DBMS.
Ans. 
Map and array in CPP are both data structures, but map is a key-value pair container while array is a collection of elements with a fixed size.
• Map in CPP is a container that stores elements in key-value pairs, allowing fast lookups based on keys.

• Array in CPP is a collection of elements of the same data type, stored in contiguous memory locations.

• Generators in Python are functions that allow you to iterate over a sequen...read more
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Q2. Realtional Algebra in DBMS
Ans. 
Relational Algebra is a procedural query language used to query databases in DBMS.
• Relational Algebra is used to perform basic operations like selection, projection, join, etc. on relations.

• It helps in retrieving specific information from databases based on certain conditions.

• Examples of operations in Relational Algebra include Union, Intersection, Difference, Cartesian Product, etc.
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General SQL Questions.

Q1. Salary Negotiation.
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Json data based assignment angular

Q1. Basic technical question based on js angular
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Q1. I am freshers soo please one chance for your company
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Q2. Yes I am fresher soo for your company work
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Q3. Talk about a range of elements, including customer service.
Ans. 
Customer service is an essential element in software development.
• Customer service involves providing support and assistance to users of software applications.

• It includes addressing user queries, resolving issues, and ensuring customer satisfaction.

• Software developers may interact with customers through various channels like email, phone, or live chat.

• Good customer service can lead to positive user experiences and incre...read more
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All aptitude type questions as well as core computer science subject questions comes

Profit loss , number system, code decode

Q1. What is DDL, DML, DQL
Ans. 
DDL stands for Data Definition Language, DML stands for Data Manipulation Language, and DQL stands for Data Query Language.
• DDL is used to define the structure of database objects such as tables, indexes, and views.

• DML is used to manipulate data in the database, such as inserting, updating, and deleting records.

• DQL is used to retrieve data from the database using queries.

• Examples: CREATE TABLE is a DDL statement, INSERT...read more
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Q1. What is flutter
Ans. 
Flutter is a UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.
• Developed by Google

• Uses Dart programming language

• Hot reload feature for quick development

• Supports iOS, Android, Web, and Desktop platforms

• Provides a rich set of pre-built widgets
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