Question and Answers on Internet

Security protocols are primarily & commonly used to protect communication via the web, VPNs (Virtual Private Networks) and the transferring of files. This report will now go on to compare two main security protocols – TLS & SSH. They will be compared in a way that takes into account both the similarities and differences in approach and features and their relative advantages and disadvantages. This information will then be backed up by examples where each protocol would be preferred to the other in a certain situation along with my own personal reasoning based on the research that has been carried out on my part.

•An explanation of the differences between client and server side scripting with examples of each. Consider the advantages and disadvantages

1) Digital Certificates: Digital authentications are settled upon information structures that join qualities of an association with having its relating open key. The key necessity for a Digital Certificate is the reality it should be approved upon by recognition} expert (CA). By being marked by a perceived and trusted specialist an electronic computerized testament gives the certification

A RESTful API defines a set of functions that developers can use to perform requests and receive responses via HTTP protocol, such as GET and POST. Because RESTful APIs use HTTP as a transport, they can be used by practically any programming language and are easy to test. It’s a requirement of a RESTful API that the client and server are loosely coupled and independent of each other, allowing

The OSI (Open System Interconnection) model is a set of specifications that allow computers around the world to openly communicate. It is pivotal to understanding and developing computer to computer communications in a network. Each layer plays a role in the process of sending and receiving data. The application layer is the top layer (layer seven) it promotes communication between programs and lower-layer network services. The services at this layer allow the network to decipher a program's request and the program to decipher data sent from the network. The Application layer protocols, programs handles formatting, procedure, security, synchronization, and any other requirements with the network. The Presentation Layer (layer 6) acts as a translator. For instance these protocols decode the jpg/jpeg files sent within the Web server’s HTTP response. So, in the last step (the Application layer) we enter the Web address and it took us to the Web site. This step allows us to see the images and content of the site. The Session Layer (layer 5) regulates and controls the communication between two nodes on the network. It is an ongoing exchange of data between the two and keeps the connection between them for the duration. It keeps the communication secure, detects whether or not the communication has been cut off and if it has it determines where to restart the

We can create a controller object to handle the REST requests (GET, POST). In this controller we can use action routing [48] to control which function will handle which request. In every function, we can do some computations with the data, make decisions and use the HTTP web client to construct and send responses to the partner end point URLs.

server responds to incoming client requests. It should be noted that a server typically starts

In general, on the internet, every packet follows 5 layers of structures (Application, Transport, Network, Data Link, and Physical). Since I have to talk about Connection-Oriented and Connectionless as a service, I will focus on the Transport layer because they are part of this layer. It allows multiple applications to use one network connection simultaneously, the layer will create ports on your computer allowing them to be reserved and used by the Application layer. Let's say that port 3600 will be used to send a message to port 80 of some other computer, whenever the port is ready to send a message, it passed on to Transport layer. In this layer, it wraps the message inside the Segment which contains some additional

Learned about existence cycle of servlets, JSP's and different classes like HTTPServletRequest, HTTPServletResponse and so forth.

In this thesis, focus on the security aspect of the client side, as well as in terms of the server, where the main objective of this security system to prevent attackers from exploiting the weaknesses of the client side because this would lead ultimately

4. Transport protocols resemble those you studied in Data Link Layer since both will have to deal with error control, sequencing, flow control etc. Still the two differ significantly. How? elaborate with at least 4 differences.

1.Basic Authentication- Basic authentication is one of the two mechanisms in HTTP 1.1 specification . It required the safe http communication i.e. https communication for encoding.

a) A PKI (public key infrastructure) enables users of a basically unsecure public network such as the Internet to securely and privately exchange data and money through the use of a public and a private cryptographic key pair that is obtained and shared through a trusted authority.

The first protocol explain is TCP. Starting with the Layer 7, 6, and 5, the Application Layer is providing the payload (data and instructions). The web browser is an example of initiation of Layers 7,6,5 and the payload flow. The Transport

The application layer: this layer allows different applications to communicate with each other’s. In order to exchange different data over the network connection, the protocols included in this layer set up the standards such as DNS, HTTP, FTP. The data coded in this layer will be encapsulated to transport layer for further packing.