Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
As we know how packets travel from one computer to another over the Internet. However what's in-between? Actually what makes up the Internet infrastructure or backbone?
Figure: Internet Backbone
Internet backbone is made up of many large networks, which interconnect with each other. These large networks are termed as Network Service Providers or NSPs. These networks peer with each other to exchange packet traffic. Every NSP is essential to connect to Network Access Points or NAPs. At NAPs, packet traffic can jump from one NSP's backbone to another NSP's backbone. NSPs interconnect at Metropolitan Area Exchanges or MAEs also. MAEs serve same purpose as NAPs though are privately owned. NAPs were original Internet interconnects points. Both MAEs and NAPs are referred to as Internet Exchange Points or IXs. NSPs also sell bandwidth to smaller networks, like ISPs and smaller bandwidth providers. Below is a picture demonstrating this hierarchical infrastructure.
This isn't a true representation of an actual piece of the Internet. Above figure is only meant to demonstrate how NSPs could interconnect with each other and smaller ISPs. None of the physical network components are demonstrated in this figure. This is because a single NSP's backbone infrastructure is a complex drawing by itself. Most NSPs publish maps of their network infrastructure on their web sites and may be found easily. To draw an actual map of the Internet will be nearly impossible because of its complexity, size and ever changing structure.
a. What are the differences among conventional signatures and digital signatures? Write a short note on "Attacks on digital signature". b. What is Public-Key Infrastructures
What are the major functions of IO system? i. Interface to the CPU and memory by the system bus. ii. Interface to one or more IO devices by tailored data link.
Q. What is Effective Address ? The symbol EA (Effective Address) refers to a physical address in a non-virtual memory environment and refers to a register in a virtual memory a
Q. Convention used to represent micro-operations? The convention used to represent micro-operations is: 1. Computer register names are designated by capital letters (someti
MINI PROJECT ON UNIVERSITY SCHEMA
In which system field does the name of current gui status is there? The name of the present GUI STATUS is available in the system field SY-PFKEY.
The number of flip flops contained in IC 7490 is ? Ans. 2 flip flops contained in IC 7490.
State the criteria which a trusted publisher should meet before adding him? Ans) The following criteria should be met by the publisher before adding him to the list. ? The
Give some examples of malicious data. In May 2002, the Norton Anti-Virus software for Windows operating systems detects about 61000 malicious programs. Some of them are named
Q. Describe the Size and Speed of Scanners? Before actual scanning, a quick, low resolution scan known as pre-scan is made to preview the image and select scanning area. After
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd