How Node based web servers are different from traditional web servers?*Node based server process request much faster than traditional server.Node based server uses a single threaded model and can services much larger number of requests than traditional server like Apache HTTP Server.There is no much difference between the two.None of the above.

What distinguishes an Application Server from a Web Server?a.Web Servers are for development, while Application Servers are for production.b.Application Servers handle HTTP requests, while Web Servers handle various protocols.c.Application Servers run server-side application logic, while Web Servers handle HTTP requests and static content.d.Application Servers serve static web content, while Web Servers execute server-side logic.Clear my choice

Advantages of node js

A server is a computer that runs applications and services, ranging from websites to instant messaging. You have just learned about a web server which is a specific type of server. Which of the following statements are true? Choose all that apply.A web server can function as website storage and administration. A web server can handle security. Web servers don't perform email management.Web servers can handle thousands of requests from clients per second.

1.Question 1What best describes the network operations that Node.js makes?1 pointNon-blocked operations return immediately without added processing time on the serverNon-blocked operations return in a synchronized manner with added processing time on the serverApplications block every network operation to complete at the same time on the serverBlocked operations return immediately without added processing time on the server2.Question 2Before the Node.js framework receives the HTTP response message from the remote web server, it immediately returns a result for the http.request function call. What does this result state?1 pointThe callback function was called successfully.A request is in progress.The return message will be sent successfully.The response message will be sent successfully.3.Question 3What parameter is optional in an HTTP request?1 pointEvent variable parameterResource variable parameterCallback function parameterLocation function parameter4.Question 4What object do Node.js modules in the SDK pass as the first parameter in a callback function?1 pointIdentityLocationDestinationError5.Question 5What do you pass back in the callback handler to indicate a successful return?1 pointError404 status codeNull objectEmpty string6.Question 6Which function calls the resultCallback callback function to return results to the main application?1 pointstep()aggregate_context()http.request()result()7.Question 7Why can inversion of control be an issue when using callbacks?1 pointInversion of control creates the need for nested callbacksCallbacks sometimes hand over control to third-party code which can make errors hard to identifyInversion of control is used when something needs to be done sequentially which makes code readability difficultInversion of control uses promises which are difficult to implement8.Question 8JSON is the standard format for API data exchange. What relationship does JSON have with Node.js?1 pointMetadata fileStandard representation of native JavaScript objectsJSON_SETCommon data model folder9.Question 9When an error occurs, which state is the promise at?1 pointResolvedRejectedAbortedPending10.Question 10The axios package handles HTTP requests in Node.js and returns a promise object. The promise object has a method that is called after the promise completes. What method does the promise object use?1 pointiforelsethen

The key differences between the client-server and peer-to-peer network models are as follows:CharacteristicsClient-Server ModelPeer-to-Peer ModelArchitectureThey organize their network with one central server as storage server in the middle and many requests’ client devices to use those resources.In this case, each network node functions as both the client and the server on peers. They can exchange resources, person to person through their peers.Resource CentralizationThe resources are stored in a central server.Resources are distributed across the network.RolesServers provide services, clients request services. Servers have static IP addresses.Peers can both request and provide services/resources to each other.Management and SecurityEasier to manage and secure due to central control.Due to decentralization, needs more complex management and security protocols.ScalabilityScalability can be a bit of an issue since server resources must process all client demands.Highly scalable, as more peers means higher resource availability.ExamplesWebsites, email servers, cloud services.P2P file sharing (e.g., BitTorrent), instant messaging, and blockchain networks. Peer-to-peer networks can be good solution in these scenarios:1.     File Sharing: File sharing has become a commonplace phenomenon with regard to P2P technology. This diminishes pressure on central servers and permits clients to share records straightforwardly with each other. This can be seen in cases with BitTorrent when it comes to sharing of large files, including software, media, and documents.2.     Instant Messaging and VoIP: Direct and in real time communication between users thus reducing dependence on centralized servers is made possible using P2P communication. Early versions of Skype relied on the P2P networking framework to facilitate voice as well as video calls.3.     Collaborative Applications: Collaborative software and tools take advantage of p2p architectures in order to ensure low latencies with real time communication. Such include Google docs and PlayStation consoles amongst others.4.     Decentralized Applications (DApps): P2P networks underlie blockchain-based platforms like Ethereum enabling DApps, such as monetary activities and identity verification.Conclusion           In summary, the client-server and peer-to-peer network models give partitioned ways of distributing resources as well as communicating. Centralized control and security for the client-server demonstrate can posture challenges in adaptability whereas high scalability comes with more complex administrations for the peer-to-peer show. In any case, the choice of a specific show will be unexpected upon the specific goals and needs of the particular arrange. The understanding of the contrasts is fundamental for legitimate arrange plan as these have been utilized within the genuine world for everything from record sharing to decentralized systems.