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!
Q. What is Internet Routing Hierarchy?
So how do packets find their way across Internet? Does every computer connected to Internet know where other computers are? Do packets basically get 'broadcast' to each computer on the Internet? Answer to both the preceding questions is 'no'. No computer knows where any of the other computers are and packets don't get sent to each computer. Information used to get packets to their destinations is contained in routing tables kept by every router connected to Internet.
Routers are packet switches. A router is typically connected between networks to route packets between them. Each router knows about its sub-networks and which IP addresses they use. Router usually doesn't know what IP addresses are 'above' it. Examine the figure below. Black boxes connecting backbones are routers. Larger NSP backbones at the top are connected at a NAP. Under them are various sub-networks and under them, more sub-networks. At bottom are two local area networks with computers attached.
Figure: Routes Connecting in Network
When a packet arrives at a router, router examines IP address put there by IP protocol layer on originating computer. Router checks its routing table. If network containing IP address is found, packet is sent to that network. If network comprising IP address isn't found, then router sends the packet on a default route, usually up backbone hierarchy to the next router. Confidently subsequent router will know where to send packet. If it doesn't, again packet is routed upwards till it reaches a NSP backbone. Routers connected to NSP backbones hold the largest routing tables and here packet would be routed to correct backbone, where it will begin its journey 'downward' through smaller and smaller networks till it finds its destination.
What are the differences between struts and units? A warm up question. Units are static objects that exist from the start of the simulation right up to its end, whereas struts
What is the maximum number of fragments that can result from a single IP Datagram? Explain. To fragment a datagram for transmission across a network, a router utilizes the netw
DVD-ROM employs same principle as a CD-ROM for reading and writing. However a smaller wavelength laser beam is used. Total capacity of DVD-ROM is 8.5GB. In double-sided DVD-ROM two
Generally the register storage is faster than cache andmain memory. Also register addressing uses much shorter addresses than addresses for cache and main memory. Though the number
Define Alphabet and String? A finite set of symbols is termed as alphabet. An alphabet is frequently signified by sigma, yet can be specified any name. B = {0, 1} here B is
can u do it in 13 hours ?
Q. Explain about Hamming error correcting code? Richard Hamming at Bell Laboratories worked out this code. We will only introduce this code with help of an illustration for 4 b
Question: a) Explain why pervasive computing can be termed as a "technology that disappears". b) List and describe four main components of a MOTE used in Wireless Sensor N
What are the main differences between OSI and TCP/ IP reference models? Explain briefly. We will be considering only on the key differences among the two references models. Th
Given a four level hierarchical storage system consisting of: cache, primary storage, secondary storage, and tertiary storage. Suppose the following: programs may be executed on
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