Pro ASP.NET Core 3

Question 1

HTTP Server

Answer 1

manages incoming HTTP requests and outgoing HTTP responses

Question 2

HTTP

Answer 2

Hypertext Transfer Protocol; a request-response protocol for the client-server

Question 3

HTTP Request Methods

Answer 3

GET, POST, PUT, DELETE HEAD, TRACE, OPTIONS, CONNECT, PATCH

Question 4

HTTP Response Codes

Answer 4

Information 1xx, Successful 2xx, Redirection 3xx, Client Error 4xx, Server Error 5xx; Examples: 100 Continue, 200 OK, 301 Moved Permanently, 404 Not Found, 500 Internal Server Error

Question 5

Middleware

Answer 5

software that enables communication and management of data in distributed applications; described as “software glue”

Question 6

URL Routing

Answer 6

allows you to configure an application to accept request URLs that do not map to physical files. A request URL is simply the URL a user enters into their browser to find a page on your web site. You use routing to define URLs that are semantically meaningful to users and that can help with search-engine optimization (SEO).

Question 7

Dependency Injection

Answer 7

a technique in which an object receives other objects that it depends on; the intent is to achieve separation of concerns of construction and use of objects; one form of the broader technique of inversion of control

Question 8

Inversion of Control (IoC)

Answer 8

a programming principle; it inverts the flow of control; used to increase modularity of the program and make it extensible

Question 9

Flow of Control (Control Flow)

Answer 9

the order in which individual statements, instructions or function calls of an imperative program are executed or evaluated; the emphasis on explicit control flow distinguishes an imperative programming language from a declarative programming language

Question 10

Imperative Programming

Answer 10

a programming paradigm that uses statements that change a program’s state

Question 11

Declarative Programming

Answer 11

a programming paradigm that expresses the logic of a computation without describing its control flow

Question 12

Programming Paradigm

Answer 12

a style of building the structure and elements of computer programs

Question 13

Cache

Answer 13

a hardware or software component that stores data so that future requests for that data can be served faster

Question 14

Caching

Answer 14

reusing data stored in cache

Question 15

Model Binding

Answer 15

allows you to map HTTP request data with a model; it is a bridge between the HTTP request and the language action methods; it makes it easy for developers to work with data on forms because POST and GET is automatically transferred into a data model you specify

Question 16

Razor

Answer 16

components that form part of the Blazor framework; a markup syntax for embedding server-based code into webpages

Question 17

gRPC

Answer 17

an open source remote procedure call (RPC) system initially developed by Google

Question 18

Remote Procedure Call (RPC)

Answer 18

is when a computer program causes a procedure (subroutine) to execute in a different address space, which is coded as if it were a normal (local) procedure call, without the programmer explicitly coding the details for the remote interaction; this is a form of client-server interaction; in OOP RPC’s are represented by remote method invocation (RMI)

Question 19

Remote Method Invocation (RMI)

Answer 19

invoking a method on a remote object

Question 20

Distributed Object Communication

Answer 20

realizes communication between distributed objects; the main role is to allow objects to access data and invoke methods on remote objects

Question 21

Distributed Computing

Answer 21

a field of computer science that studies distributed systems

Question 22

Distributed System

Answer 22

is a system whose components are located on different networked computers, which communicate and coordinate their actions by passing messages to one another from any system

Question 23

Distributed Program

Answer 23

a computer program that runs within a distributed system

Question 24

SignalR

Answer 24

a free and open-source software library for ASP.NET that allows server code to send asynchronous notifications to client-side web applications; the library includes server-side and client-side JavaScript components