Which of the following best describes the significance of mobile app development in today's technology industry? It is a declining field with limited applications. It is crucial due to the widespread use of smartphones and tablets. It is mainly relevant to desktop computing. It has a minor impact on e-commerce.

It is crucial due to the widespread use of smartphones and tablets.

What is a key difference between native and hybrid mobile app development? Native apps are developed using web technologies. Hybrid apps cannot access device hardware features. Native apps provide better performance and user experience. Hybrid apps are exclusive to iOS.

Native apps provide better performance and user experience.

In mobile app development, what is the purpose of an API? To enhance graphical user interfaces To facilitate communication between software components To provide detailed error logging To define app monetization strategies

To facilitate communication between software components

What is the primary function of a backend in mobile app architecture? To handle user interface design To manage data storage and server-side logic To increase app download speeds To optimize battery usage

To manage data storage and server-side logic

Which of the following is a key challenge in mobile app development? Ensuring compatibility with all web browsers Managing different screen sizes and resolutions Developing for obsolete operating systems Providing text-based user interfaces

Managing different screen sizes and resolutions

What is an essential consideration for app security during mobile app development? Implementing only basic authentication Ignoring data encryption techniques Regularly updating app permissions and security patches Storing user passwords in plain text

Regularly updating app permissions and security patches

Which of the following best describes mobile app development? The process of creating software for mobile devices Designing hardware for smartphones Developing operating systems for desktops Coding websites for mobile browsers

The process of creating software for mobile devices

What is the purpose of an API in mobile app development? To enable communication between software applications To design user interfaces To develop hardware components To manage database operations

To enable communication between software applications

What is mobile app development? The process of creating software applications for mobile devices. The design of websites for desktop use. Developing hardware components for phones. Creating operating systems for computers.

The process of creating software applications for mobile devices.

What is the primary purpose of mobile app development frameworks? To design hardware for mobile devices To provide a template for app development To create physical stores for apps To analyze app performance post-release

To provide a template for app development

Why is mobile app development significant in the tech industry? It reduces the need for web development. It creates new ways for users to interact with technology. It's used to develop computer operating systems. It simplifies data management for large corporations.

It creates new ways for users to interact with technology.

What is a primary key in a relational database? A unique identifier for a table record A non-unique field in a table A foreign key reference A secondary index in the database

A unique identifier for a table record

What does ACID stand for in the context of database transactions? Atomicity, Consistency, Isolation, Durability Accuracy, Clarity, Integrity, Durability Atomicity, Concurrency, Isolation, Detail Asynchronous, Consistent, Immediate, Durable

Atomicity, Consistency, Isolation, Durability

What is the purpose of a foreign key in a relational database? To enforce referential integrity between tables To provide a unique identifier for records To enable indexing of a table To store multimedia data

To enforce referential integrity between tables

Which of the following is a characteristic of a relational database? Data is organized in tables with relationships Data is stored as a binary tree Data is accessed sequentially Data is primarily stored as key-value pairs

Data is organized in tables with relationships

What is an entity-relationship diagram (ERD) used for? To design and visualize the structure of a database To execute SQL queries To manage database transactions To create database backups

To design and visualize the structure of a database

What is the primary purpose of a database? To store and manage data efficiently To display data graphically To generate random data To delete unnecessary data

To store and manage data efficiently

Which of the following best describes a relational database? A database that uses tables to organize data A database with no structured format A type of database that stores data in a hierarchy A database solely for storing multimedia files

A database that uses tables to organize data

What is a 'table' in a relational database? A collection of related data entries A graphical representation of data A hardware device for data entry A software tool to edit data

A collection of related data entries

What is a 'primary key' in a relational database table? A unique identifier for each record A key used to encrypt data A field that can be null A key used for backup purposes

A unique identifier for each record

What is a 'foreign key' in a relational database? A field in one table that uniquely identifies a row in another table A key that encrypts foreign data A primary key in every table A field that can have duplicate values

A field in one table that uniquely identifies a row in another table

What is the function of normalization in a database? To reduce redundancy and dependency To increase data retrieval speed To encrypt stored data To create more tables in the database

To reduce redundancy and dependency

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