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Is line efficiency greater in packet switching?
The short answer is "no." The longer answer is that "packet switching" is the way the internet works. If you send a very short message, it might end up as a single "packet." A packet consists of a sandwich that contains your message as the filling. The beginning contains routing information - where you want the message to go, and eventually where the message has been (how many stops it made along the way and what their address is). The end contains information to keep the message "clean" and be sure we don't drop some words or letters, or add some.If your message is long, it will probably be divided into several packets, and each packet is identified with a unique message identifier showing it is your message in a number of pieces and a sequence within the message. Each packet is then sent out over the internet. Each packet will probably follow a different route through the internet, stopping at different places along the way to the destination. At the destination, the receiving machine will recognize that a packet is part of a bigger message, and store it until all the parts are received. It will then assemble it as a single message and pass it on to your application, usually your internet browser such as Internet Explorer or Firefox.So...a line is more efficient when you fill it with large blocks of data. When you use packets you are duplicating a lot of information in each packet, and generating information to identify the packet and the data within it. Therefore, packets are inherently NOT effiicient for line usage. However...They are extremely effective in allowing the internet to get large amounts of data to/from places in a short amount of time by being able to process all your packets in "parallel" mode. So if your message takes 6 packets, those 6 packets can be sent from point A to point B through 6 different routes using a lot of different machines along the way. The message gets to you quicker than sending it all at once, which is line efficient but not network efficient. By the way, you may have heard the term "packet loss." You can now figure out that that means one of the packet's in a message never made it to the receiving machine. When the receiving machine receives a packet for a message, it starts a clock on that message. If it doesn't receive the rest of the packets in a reasonable amount of time, it flags the message as incomplete and logs the packet loss. You now know a bit of how the internet works.
What is The header of an IPv4 packet does not include fields required for?
The header of an IP packet does not include fields required for reliable data delivery. There are no acknowledgments of packet delivery. There is no error control for data.
Does a packet of biscuit contains antioxidant?
Yes, it contains antioxidants to preserve the biscuit.
What in an IP packet header contains information that prevents a packet from continuously circulating around a network?
See time-to-live (TTL) packet
What is a packet and what does it contains?
Please explain your question better.
Types of switching?
packet switching circuit switching message switching
How much yeast is typically found in a yeast packet?
A typical yeast packet contains about 7 grams of yeast.
Is a UDP packet smaller than a TCP packet?
In general, yes, using UDP transport will use a smaller packet than TCP. UDP generally assumes that the complete message will fit within a single packet, unlike TCP which will segment or break apart a message into multiple packets for guaranteed reliable delivery. UDP has no such requirement to deliver anything within a reliable framework and would like to keep the entire message within a single packet and eliminate the segmentation and reassembly process.
Packet switch and message switch?
packet switching can be considered an improvement over message switching.Similar to message switching,packet switching forwards data on first come first serve basis between nodes and no dedication connection is made (as it is done in circuit switching). But unlike message switching,packet switching puts an upper limit on the maximum size of the packet.If the packet size is greater than the maximum,it is segmented and then transmitted.Each segment has separate header which increases the overhead. But it reduces the average delays.Also in case of packet switching data is not stored for later transmission to a currently busy or inactive terminal.It just takes care of data transmission between nodes
What is the role of the address field in a packet travelling through a datagram?
There are two address fields. Source is the IP address the packet came from and destination is the IP address the packet is meant to be delivered to.
How much yeast is typically included in a packet of yeast?
A packet of yeast typically contains about 2 1/4 teaspoons of yeast.
Which part of a data packet contains error-checking information?
The trailer
