Mobile Assignment Example | Topics and Well Written Essays - 1250 words

Mobile - Assignment Example l use of IP in IP tunneling is forwarding of IP multicast traffic from one area of intranet to another area of intranet, across the portion of intranet that does not support multicast forwarding or routing . After IP-in-IP interfaces are created and added as an IP routing interface, you must configure the tunnel endpoints. In other words it is used to make a tunnel between the two routers. (1)The route is discovered through initiation of route discovery and broadcast of request and this is followed by accumulation of address of the devices between the source and destination. A flow id option is used to transfer packets on a hop to hop basis. Route Reply is used for confirmation. (iii). Route error packet is sent back to host and Route discovery is setup again through broadcast of route request. In case of route error, the hop in error is removed from the host’s route cache; an end to end and hop by hop acknowledgement can be adopted to avoid further loss in communication Hidden terminal is a phenomenon where the nodes are in non line of sight contact and are connected through an Access point .Its implications can be in form of packet loss, collision between them, decrease in overall throughput. It also results in difficulty in transmission at Data link layer where MAC is operational CSMA/CA stands for Carrier Sense Multiple Access/Collision Avoidance and it monitors the activity before transmission and if channel is found busy, it delays sending packet to destination until vacant. In CSMA/CA as soon as the packet is received, the channel is checked for availability, if the channel is clear, node is sent to destination, otherwise, packet is kept in waiting for a duration that is termed as back off factor. As soon as vacant slot is traced, the packet is sent along the destination. When two devices try accessing the channel simultaneously, a set of rules are used for this purpose to determine the devices activities. CSMA/CA uses Broadcast technique to inform

Sa.1.2.1 Essay Example | Topics and Well Written Essays - 500 words

Sa.1.2.1 - Essay Example er of reasons however it is likely that a great deal of people are starting to enter the field owing to the relative job security guaranteed as a result of the recent financial crisis. Furthermore it may be seen as an excellent opportunity for workers who wish to remain in more rural areas, and people may look to this field as it is the case that there seems to be a growing demand for these positions. The objective of this research piece will be to first break down a the topic into a number of different sub categories such as people studying to be social workers, people who were recently hired as government social workers, people who have been working as a government social worker for a long time etc. Then through a systematic examination of research that has already been conducted on these sub groups it will hopefully be determined that a research gap exists. The research method that will be conducted will be directed towards exploratory research to determine the new issues. To research this issue a combination of primary and secondary research will be conducted. Moreover a number of case studies will be examined with a focus on finding five usable case studies. In terms of the method of data collection that will be employed, a strategy of conducting qualitative research through conducting interviews with a variety of people who are either social workers or are seeking to be social workers. A survey will have to be designed in which pen ended questions will be asked to the interviewees with a mix of direct and open ended questions. By using this mixed survey format a kind of grounded theory approach will be taken. The questionnaires will be analyzed using Microsoft excel and potentially SPSS to determine any particular trends in the field of social work. Moreover, in regards to secondary research it is the case that a great deal of academic literature has been generated on specific sub groups of social workers. Furthermore there is a great deal of academic