1. Despite its conceptual elegance, RPC (Remote Procedure Call) have a few problems. Discuss any 3 of those in brief.
• RPC requires the system where the program is running to function without error. If it can’t be reached or isn’t functioning properly it can’t run the procedure.
• The two systems may not be identical. In order for the procedure to function and relay information properly there needs to be a conversion of the information into a form that can be handled by each system at either end when data is submitted.
• Binding: In order to run the function the RPC must know what server to contact and where. If this changes for any reason, or there are multiple servers that could run the function it needs to know which one to use (Wills, 1998).
2.
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Why is timestamping needed in Real Time Applications? (This is in context to RTP).
Timestamping is used to synchronize the server and the client so that they are functioning in unison. In addition to just syncing initially, if there are dropped packets or connection issues, it can help keep data up to date continue to achieve a “real-time” connection avoiding seemingly delayed presentation of the data.
3. Why does the maximum packet lifetime , T, have to be large enough to ensure that not only the packet but also its acknowledgements have disappeared?
If the maximum packet lifetime is not large enough a duplicate packet could be sent while the ACK is still in the process of being transmitted back to the original sender. This could cause issues where there are duplicate packets being sent. Additionally, this will cause unnecessary congestion issues if there are extra packets and ACKs being sent.
4. Give one potential disadvantage when Nagle's algorithm is used on a badly congested network.
If the network is badly congested than the ACK for the combined set of packets can be delayed. As the source using the Nagle algorithm awaits the ACK it can introduce an inadvertent additional latency (Wikipedia,
As a result we have processes and forms that are unique, for example, RPA forms (Request for Pick Up or
This paper identifies several topics such as the type of protocols and cryptosystems used to complete online financial transactions, the development and implementation of Advanced Encryption Standard (AES), a fire control system in an automated server room, factors considered when converting general office space to a server room, and power systems in server rooms. Research indicates the use of secure hypertext transfer protocols and digital certificates for the use of online financial transactions. Additionally, AES provides:____. A fire control system requires_____. When converting general office space to a server room_____. Power options for server rooms __________.
The first opportunity of the organization having identified the need for a n house, fulltime float provider or Locum Tenums on call. Based upon the number of patients that were being cancelled per month on average, close to 700. The information was extracted from our data warehouse. Once the information was compared to other health care systems who were experiencing similar problems, the need was identified for a float provider/Locum Tenums (on call) to be housed at the parent facility. The float provider/ Locum Tenums will be used in several aspects that will help to continue to improve access to care. They will be available when a provider calls in so clinic will not have to be cancelled. The float provider/Locum Tenums will be able to see overflow walk in patients if he or she is not providing clinic coverage and or write prescription scheduled medication for providers who are on scheduled
Japan is an island nation off the coast of East Asia. It is made up of four large islands and about 3,900 smaller ones. On a map, they form a thin crescent moon. All together, they form an area about the size of Montana. To the west, the sea of Japan separates it from its nearest neighbors, Korea and China. To the east lies the Pacific ocean. Japan has a moderate climate. Summers are nice. Winters are mild, with heavy snowfall limited to the north. Japan makes crops due to rain in the summer.
RMI: Remote Method Invocation allows an object that lives in one process to invoke methods of an object that lives in another process.
I am a plate that is made of clay that was taken from the Earth of Japan. But before I was made into a plate I was up to the mountains near a big forest that had a Jinja on top a beautiful waterfall where water fell from the top to the bottom and sometimes flowing to rivers. But when winter comes the waterfall would freeze into shards and when the winter goes the shards and snow turn into water filling up the waterfall making a waterfall from the top to the bottom flowing with an immense amount of water to rivers and ponds that would sometimes connect with the waterfall. My maker crafted me to be used as art depicting many natural objects or buildings even sometimes people in the drawing. I am also used to hold a meal for a person who would eat the nourishment from top to bottom. Most of the time I would have fish from the ocean or rice that was farmed in flatlands on top of me.
2010 was the year for Jets fans they made it out of the regular season and into the playoffs, all the way into the Conference Finals. But no surprise, the Jets came up short again, losing to the Pittsburgh Steelers 24-19. After that, it all went down hill. The rankings of the Jets defense and offense decrease and with that so does their record, 8-8, 6-10, 8-8, 4-12, 10-6(glimps of hope), 5-11. With the decrease of wins most people, me included, you lose hope, and wonder when is that next year going to happen. If you want the easy answer as to why there is such a big difference between the years, just look at the Jets overall rating. It is like a roller coaster, from good one year to bad the next. But the real question is why was there this
1: The freedoms guaranteed by the fourth amendment are the most vulnerable to ethics violations in responses to terrorism. In fact they have already been threatened with the Patriot Act(Beau), NSA wiretapping(Sage), and the Freedom Act(Destiny). All of these acts have seen the United States Government be able to search through someone’s history without a warrant. The 4th Amendment States, “The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated”, and that “no Warrants shall issue, but upon probable cause”. This clear violation of the fourth amendment put Americans rights at risk. It may have seemed right at the time, but looking back we cannot watch everyone just to catch a few people who are doing the wrong thing.
This is the case of persistent HTTP connection case. The total time needed is given by:
The communication process ensures successful communication. The process, shown in Figure 1., was developed by Shannon and Weaver (1948) and involves a sender, from whom the
...d acknowledgement numbers. The data contained in these fields ensures packet delivery by determining whether or not a packet needs to be resent. The sequence number is the number of the first byte in the current packet, which is relevant to the data stream. The acknowledgement number, in turn, contains the value of the next expected sequence number in the stream. This relationship confirms, on both ends, that the proper packets were received. It's quite different than IP, since transaction state is closely monitored.
... middle of paper ... ... TCP/IP operates at levels 3 and 4 of the OSI model.
Channel Barriers. If the sender chooses an inappropriate channel of communication, communication may come to an end. Detailed instructions presented over the telephone, for example, may be frustrating for both communicators.
b) It is not fully reliable as internet glitches of signals can hinder communication effectively.