Ruby on Rails Test 2

Question 1

Which frameworks help you build system infrastructure like communications, user interfaces, and compilers?

Accepted Answer

System infrastructure framework

Answer

System infrastructure frameworks are specifically designed to provide the foundational components and tools for building core system-level functionalities. These frameworks typically handle complex tasks like managing communication protocols, rendering user interfaces at a low level, or providing utilities for compiler development. They form the essential backbone upon which other applications and higher-level frameworks can be built.

Question 2

Is it true that Ruby on Rails makes app development simpler?

Accepted Answer

Yes, It does

Answer

Ruby on Rails is renowned for significantly simplifying and accelerating web application development. Its 'convention over configuration' philosophy, built-in scaffolding, Active Record ORM, and comprehensive set of libraries reduce the amount of boilerplate code developers need to write. This allows for rapid prototyping and efficient development of robust web applications, making the process much simpler.

Question 3

When throwing a GET, what is the status code for "success"?

Accepted Answer

200

Answer

In HTTP, the status code `200 OK` is the standard response for a successful GET request. It indicates that the request has succeeded and the requested resource has been found and returned in the response body. This is the most common and expected success code for retrieving data from a server.

Question 4

You're creating an ASP.NET MVC 4 application that stores data in an Oracle database. What session configuration options do you have that allow you to deploy your application on a web farm?

Accepted Answer

SQLServer  and Custom session provide

Answer

In an ASP.NET MVC web farm environment, session state needs to be shared across multiple servers. `InProc` (in-process) session state is server-specific and thus unsuitable, as requests might hit different servers. `SQLServer` session state stores data in a database, making it accessible to all servers. A `Custom session provider` offers flexibility to implement other shared storage mechanisms, both of which enable seamless session management in a web farm.

Question 5

How can I generate several hashes within "params" (for example, "status" within "tweet")?

Accepted Answer

params = {:tweet => {:status => "I'm dead" }}

Answer

In Ruby on Rails, the `params` hash is used to access data submitted by the client. To create nested hashes like `params[:tweet][:status]`, the incoming data structure must reflect this nesting. The correct Ruby syntax to represent such a nested hash is `{:outer_key => {:inner_key => value}}`, which directly corresponds to how Rails interprets form data for nested attributes.

Ruby on Rails Practice Test

Ruby on Rails Practice Test

Ruby on Rails Test 2