Mobiloitte Technologies Interview Questions and Answers

Different types of data structures include arrays, linked lists, stacks, queues, trees, and graphs.

• Arrays: store elements of the same data type in contiguous memory locations

• Linked lists: elements are stored in nodes with pointers to the next node

• Stacks: last in, first out data structure

• Queues: first in, first out data structure

• Trees: hierarchical data structure with a root node and child nodes

• Graphs: nodes connected by edges to represent relationships

Gain experience in data analysis through education, internships, projects, and continuous learning.

• Pursue a degree in a related field such as statistics, mathematics, or computer science.

• Participate in internships or co-op programs to gain hands-on experience.

• Work on data analysis projects independently or as part of a team.

• Take online courses or attend workshops to learn new tools and techniques.

• Join data analysis communities or forums to network and learn from others.

• Contin...read more

I have 3 years of experience in data analysis.

• Utilized various statistical tools and software for data analysis

• Performed data cleaning, transformation, and visualization

• Developed predictive models and conducted trend analysis

• Worked on projects involving large datasets from diverse sources

E-commerce refers to buying and selling goods or services online.

• E-commerce involves online transactions between businesses and consumers.

• Common examples include Amazon, eBay, and Alibaba.

• It allows for convenient shopping, comparison of products, and secure payment methods.

• E-commerce platforms often use data analytics to personalize user experiences and improve sales.

• Mobile commerce (m-commerce) is a growing trend in e-commerce, with transactions conducted via mobile devices.

Customer service is the provision of assistance and support to customers before, during, and after a purchase.

• It involves addressing customer inquiries and complaints

• Providing information about products or services

• Resolving issues and ensuring customer satisfaction

• Examples include phone support, email support, live chat, and in-person assistance

A data structure is a way of organizing and storing data in a computer so that it can be accessed and modified efficiently.

• Data structures define the way data is organized and stored in memory.

• Examples include arrays, linked lists, stacks, queues, trees, and graphs.

• Different data structures are used for different purposes, such as optimizing search or insertion operations.

Use SQL query with ORDER BY and LIMIT to find nth maximum salary from table.

• Use SQL query like SELECT salary FROM table_name ORDER BY salary DESC LIMIT n-1, 1 to find nth maximum salary.

• Replace table_name with actual table name and n with the desired nth value.

• For example, SELECT salary FROM employees ORDER BY salary DESC LIMIT 2, 1 will give you the 2nd maximum salary.

An algorithm is a set of instructions designed to perform a specific task or solve a particular problem.

• An algorithm is a step-by-step procedure for solving a problem or accomplishing a task.

• It can be represented using flowcharts, pseudocode, or programming languages.

• Algorithms are used in various fields such as computer science, mathematics, and engineering.

• Examples include sorting algorithms like bubble sort, searching algorithms like binary search, and machine learning alg...read more