CodeIgniter is a powerful and lightweight open-source PHP framework renowned for its simplicity and speed in web application development. With a focus on minimal configuration and a straightforward yet comprehensive toolkit, CodeIgniter empowers developers to build robust and scalable web applications efficiently. Its Model-View-Controller (MVC) architecture enhances code organization, making it easy to create maintainable and modular applications. CodeIgniter also offers a rich set of libraries and helpers, enabling rapid development and customization. Whether you're a novice or an experienced developer, CodeIgniter is an excellent choice for crafting dynamic and high-performance web solutions.
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Practice Test
211. Which database scaling technique can improve the performance of a CodeIgniter application?
A. Sharding
B. Password encryption
C. Code optimization
D. URL rewriting
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Answer: Sharding
212. What is horizontal scaling in the context of CodeIgniter application scaling?
A. Adding more servers to a cluster
B. Upgrading the PHP version
C. Reducing the server's capacity
D. Deleting user accounts
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Answer: Adding more servers to a cluster
213. Which caching mechanism can be used to enhance the performance of a CodeIgniter application?
A. Memcached
B. SSH (Secure Shell)
C. LDAP (Lightweight Directory Access Protocol)
D. SMTP (Simple Mail Transfer Protocol)
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Answer: Memcached
214. How can a Content Delivery Network (CDN) assist in scaling a CodeIgniter application?
A. By distributing content to multiple edge servers
B. By reducing server resources usage
C. By increasing database capacity
D. By optimizing JavaScript code
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Answer: By distributing content to multiple edge servers
215. What role does load balancing play in scaling a CodeIgniter application?
A. Distributes incoming traffic across multiple servers
B. Reduces the number of application features
C. Increases the PHP version
D. Adds security layers to the application
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Answer: Distributes incoming traffic across multiple servers
216. Why is database indexing important for scaling a CodeIgniter application?
A. It speeds up database queries and reduces load
B. It adds more server resources
C. It improves the user interface
D. It enhances code readability and maintenance
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Answer: It speeds up database queries and reduces load
217. Which technique involves breaking a CodeIgniter application into smaller, manageable services?
A. Microservices architecture
B. Monolithic architecture
C. Model-View-Controller (MVC) architecture
D. Object-Relational Mapping (ORM)
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Answer: Microservices architecture
218. What is the primary purpose of middleware in web applications?
A. To process and modify HTTP requests and responses
B. To store session data
C. To define URL routes
D. To create database tables
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Answer: To process and modify HTTP requests and responses
219. In the context of web development, what is a common use case for middleware?
A. Authentication and authorization
B. User interface design
C. Database schema management
D. Load balancing
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Answer: Authentication and authorization
220. Which hook point in a web framework is executed before the main controller method?
A. pre-controller
B. post-controller
C. pre-system
D. post-system
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Answer: pre-controller
