Programming and Open Source

Question 1

What is client-side and front-end development?

Answer 1

These two partly overlaps, as they both runs in the browser.

Client-side: code that rund on the client (e.g.users computer).

Front-end: all code/components/processes that is used to present something to the end-user.

Question 2

What is server-side and back-end development?

Answer 2

These two partly overlaps.

Server-side: Code that runs on the server, not the client.

Back-end: whatever is going on behind the scene. When the end-user interacts with the interface, something happens back-end, e.g. DB queries, calculations etc. Now a days, these actions often happens front-end/client side as well, due to more hardcore clients that can manage heavier calculations.

Question 3

What is the role of HTML, CSS and JS?

Answer 3

HTML: markup, structural.
CSS: styling, presentational.
JS: programming, behavioral.

Question 4

What are JS Frameworks?

Answer 4

Tools for making JS coding faster and more efficient. It is an application framework written in JS.

E.g. ReactJS, Angular5 (not JS) and Vue.js.

Question 5

What is an API?

Answer 5

An interface in a SW that makes certain parts of it able to be activated/run from another SW, through API-calls. Common that SW/P-owners publish their API’s ((un)constrained) to allow independent devs to use their SW in a novel way.

Question 6

What is REST?

Answer 6

an architectural style, a set of architectural constraints. Can be thought of as “rules” for what is allowed within an architecture.
Developed to support the HTTP-protocol.
(hel forelesning om dette, les notatene).

Question 7

• What constrains exists in REST?

Answer 7

• Client-server (CS)
• Stateless (S)
• Cachable ($)
• Layered system (LS)
• Uniform Interface (U)
• Code-on-demant (CoD)

Question 8

• Name the data elements of REST

Answer 8

1. Resource
2. Resource identifier
3. Representation
4. Representation metadata
5. Resource metadata
6. Control data

Question 9

• Name the components of REST

Answer 9

1. Origin server
2. Gateway/reverse proxy
3. Proxy
4. User agent

Question 10

• Name the connectors of REST

Answer 10

1. Client
2. Server
3. Cache network
4. Resolver
5. Tunnel

These are inner functionality of the components, and handles communication for them.