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NIS 22620 Important Notes | NIS 6th Semester Notes | MSBTE Free Notes

NIS Notes Pdf Download | NIS Important Notes | Important Notes of NIS | NIS 6th Semester Important Notes 

MSBTE Diploma 6th Semester NIS Notes for Computer Branch

Hello students, if you are in the 6th semester of Diploma In Computer Engineering of MSBTE [Maharashtra State Board of Technical Education], then this article is for you. In today's article, we at Campusify are going to provide you with important notes that will be very beneficial in your studies. We guarantee that by using these notes, you will definitely benefit from them in your MSBTE exam.

NIS Notes Overview

The notes provided by Campusify are given by Topper, so there is no doubt that they are important or not. In terms of Engineering, NIS is a very important subject and is not easy at all, but you can pass this subject very easily using these notes.

NIS All Unit Important Notes 

NIS Hand-written Notes

What is DOS In NIS ?

Denial of service (DOS) attacks can exploit a known vulnerability in a specific application or operating system, or they may attack features (or weaknesses) in specific protocols or services. In this form of attack, the attacker is attempting to deny authorized users access either to specific information or to the computer system or network itself. The purpose of such an attack can be simply to prevent access to the target system, or the attack can be used in conjunction with other actions in order to gain unauthorized access to a computer or network. SYN flooding is an example of a DOS attack that takes advantage of the way TCP/IP networks were designed to function, and it can be used to illustrate the basic principles of any DOS attack. SYN flooding utilizes the TCP three-way handshake that is used to establish a connection between two systems. In a SYN flooding attack, the attacker sends fake communication requests to the targeted system.
Each of these requests will be answered by the target system, which then waits for the third part of the handshake. Since the requests are fake the target will wait for responses that will never come, as shown in Figure.The target system will drop these connections after a specific time-out period, but if the attacker sends requests faster than the time-out period eliminates them, the system will quickly be filled with requests. The number of connections a system can support is finite, so when more requests come in than can be processed, the system will soon be reserving all its connections for fake requests. At this point, any further requests are simply dropped (ignored), and legitimate users who want to connect to the target system will not be able to. Use of the system has thus been denied to them. 

What is Hacking?

Hacking: Hacking is one of the most well-known types of computer crime. A hacker is someone who find out and exploits the weaknesses of s computer systems or networks. Hacking refers to unauthorized access of another’s computer systems. These intrusions are often conducted in order to launch malicious programs known as viruses, worms, and Trojan horses that can shut down hacking an entire computer network. Hacking is also carried out as a way to talk credit card numbers, intent passwords, and other personal information. By accessing commercial database, hackers are able to steal these types of items from millions of internet users all at once. There are different types of hackers: 1. White hat 2. Black hat 3. Grey hat 4. Elite hacker 5. Script hacker

Key Points In Notes

One of the most basic security function provided by a firewall is Network Address Translation (NAT). This service allows you to mask significant amounts of information from outside of the network. This allows an outside entity to communicate with an entity inside the firewall without truly knowing its address. Basic Packet Filtering, the most common firewall technique, looking at packets, their protocols and destinations and checking that information against the security policy. Telnet and FTP connections may be prohibited from being established to a mail or database server, but they may be allowed for the respective service servers. This is a fairly simple method of filtering based on information in each packet header, like IP addresses and TCP/UDP ports. This will not detect and catch all undesired packet but it is fast and efficient.

Denial of service (DOS) attack scan exploits a known vulnerability in a specific application or operating system, or they may attack features (or weaknesses) in specific protocols or services. In this form of attack, the attacker is attempting to deny authorized users access either to specific information or to the computer system or network itself. The purpose of such an attack can be simply to prevent access to the target system, or the attack can be used in conjunction with other actions in order to gain unauthorized access to a computer or network. 
SYN flooding is an example of a DOS attack that takes advantage of the way TCP/IP networks were designed to function, and it can be used to illustrate the basic principles of any DOS attack.SYN flooding utilizes the TCP three-way handshake that is used to establish a connection between two systems. In a SYN flooding attack, the attacker sends fake communication requests to the targeted system. Each of these requests will be answered by the target system, which then waits for the third part of the handshake. Since the requests are fake the target will wait for responses that will never come, as shown in Figure.

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How to Prepare for NIS Exams with Campusify's Important Notes

We (Team Campusify) are also students, so we can understand how many notes and important questions you are looking for, that's why we are providing this to you in an easy way and you will get all this at one place.

  • Comprehensive: In these notes, we have highlighted each and every important point in your syllabus.
  • Concise: We believe in giving you the important questions.
  • Practical: In the notes we have, we also include important information for your practical.

What’s Covered in Campusify’s NIS Notes?

Our MSBTE 6th Semester NIS Notes include everything you need to prepare for your exams:

  • Core Concepts: All important topics that MSBTE has included in the Syllabus
  • Advanced Topics: Advanced level topics have been inserted in this, such as those in the Engineering curriculum. 
  • Practical Examples: Real-world examples to help you understand how NIS is applied in actual web development.
  • Important Questions: We highlight the most important and frequently asked exam questions, helping you prepare more effectively.
  • Shortcuts and Tips: Learn quick techniques and coding shortcuts to make your web design more efficient and effective.

How to Download Campusify’s NIS Notes?

Downloading your free NIS notes from Campusify is quick and easy. Here’s how:

  1. Visit Our Website: Go to Campusify’s website.
  2. Go to Navigation Bar 'Notes' Section: From the top menu, head to the ‘Notes’ section and select your semester.
  3. Select NIS (Mobie Application Development ): Choose the 6th semester and select the NIS subject.
  4. Download the Notes: Once you find the notes, click on the download button to get the PDF file instantly.
  5. Start Preparing: Use the notes to revise key concepts, practice questions, and best wishes your exams!

Why Students Choose Campusify?

Campusify has become a trusted platform for thousands of MSBTE diploma students across Maharashtra. Here’s why students prefer Campusify:

  • Free Resources: All our notes, question papers, and study materials are available free of charge. We believe in providing quality education without any Fees Or Cost!
  • Tailored for MSBTE Students: Our notes are aligned with the MSBTE syllabus, ensuring you study exactly what’s needed for your exams.
  • Simple and Effective: Our notes are easy to understand, even for students who might find certain subjects challenging. We break down complex concepts into simple language.
  • Updated Content: Campusify keeps up with the latest syllabus and exam trends, ensuring you have the most current and relevant study materials. We update Notes every month.
  • One-Stop Study Platform: From notes to question papers and microprojects, Campusify offers everything a student needs to excel in their diploma studies.

NIS is a most important subject for 6th-semester diploma students in the Computer Branch, and mastering it will open up numerous opportunities in the world of web development and beyond. With Campusify’s NIS Notes, you’ll have access to well-organized, easy-to-understand study materials that will help you not only prepare for exams but also build a strong foundation in web design.

So, don’t wait! Visit Campusify today, download your free NIS notes, and start your journey towards your 6th-semester exams!

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