Metro Ethernet
Disclaimer; this is intended to be an introductory technical article; certain details have been excluded in the interests of space and clarity. Network design examples are presented to illustrate specific technical points and are not intended to fully complete.
Historically WAN’s (Wide Area Networks) and LAN’s (Local Area Networks) have relied on independent technologies. At a physical layer WAN technologies today continue to be based largely on legacy TDM systems that were built initially to support voice, video and early data communications in a reliable fashion. WAN connectivity over distance often requires the use of regenerators and meet points between multiple Telco suppliers that may span the globe. Without strict adherence to standards, these connections would not function. WAN technologies depend on highly complex and expensive equipment, which can guarantee inter-operability and “five 9’s” reliability required to support the millions of paying customers utilizing the network.
Meanwhile, the advent of early PC’s and the recognition of the value in networking devices together gave rise to Local Area Networks. These LAN’s were developed from a business customer perspective, which placed more emphasis on costs and ease of use over reliability. There were a number of different competing LAN technologies, two of the most common being Token Ring (IBM) and Ethernet (everyone else). The triumph of Ethernet in the marketplace, to the extent where it is included in every PC, game console and some refrigerators, provides a consistent and relatively inexpensive way to build internal networks with relative ease.
As the internal PC networks continued to grow and thrive a need to connect disparate facilities together resulted in development of bridges, gateways and ultimately routers for the sole purpose of connecting LANs to other LAN’s located anywhere from several miles to several thousand miles apart. These devices allow disparate interface types to be connected by performing the necessary modifications to the signal and protocols to allow WAN and LAN equipment to understand one another. Because LAN Ethernet and WAN TDM networks were so vastly different in their technical make-up these intermediary devices were needed to allow inter-communication to occur. While the benefits of enterprise connectivity are great, they come at the cost of special hardware, software and application complexity as the speed of the network can change by a factor of 100 between a client and the server (100 Meg bit per second Ethernet to 1.5 Meg bit per second WAN).
Cisco Designs, manufactures, and sells Internet Protocol (IP) - based networking and other products related to the communications and information technology (IT) industry and provide services associated with these products and their use. The company provides products for transporting data, voice within buildings, across campuses and globally. The products are utilized at enterprise businesses, public institutions, telecommunications companies and other service providers, commercial businesses, and personal residences. Cisco conducts its business globally and manages its business geographically. Its business is divided into the following three geographic segments: The Americans; Europe, M...
The disparities may be attributed to the amount of prenatal care that pregnant women of different ethnicities receive. In 1996, 81.8% of all women in the nation received prenatal care in the first trimester--the m...
Two-thirds of infants die during the first month of life due to low birth weight (Lia-Hoagberg et al, 1990). One reason for this outcome is primarily due to difficulties in accessing prenatal care. Prenatal health care encompasses the health of women in both pre and post childbearing years and provides the support for a healthy lifestyle for the mother and fetus and/or infant. This form of care plays an important role in the prevention of poor birth outcomes, such as prematurity, low birth weight and infant mortality, where education, risk assessment, treatment of complications, and monitoring of fetus development are vital (McKenzie, Pinger,& Kotecki, 2012). Although every woman is recommended to receive prenatal health care, low-income and disadvantaged minority women do not seek care due to structural and individual barriers.
In the United States, nutrition screening is a part of inpatient admission. The Joint Commission requires a nutritional screening to be completed within 24 hours of inpatient admission (Treas & Willkinson, 2014). Proper nutrition is important for staying healthy and is particularly vital for the elderly. For the purpose of this week discussion this learner will concentrate on explaining the health status of a 81 year old patient who presented at the primary care for a routine visit. We observed the patient height is around 72 inches and weight is 135 ponds. We will calculate the patient Body mass index (BMI) and interpret the result. In addition two specific assessments will be perform and included the rationale for each one.
The Unistep IRP Elexol EtherIO 24 Module is a network board that is integrated with features that allow multiple devices over the same network to communicate. This microcontroller was designed to be implemented as an addition to a larger network system; the multiple features and capabilities allow for various industrial and home applications. Ethernet is very common and used in most networks, which makes the IRP a great candidate for networking problems both at home and in the work field.
With a green card or undocumented. There is a low chance of ICE coming into your home and taking you away to deport you. Unless you are a convicted felon this should not concern you much. Also applying for citizenship can be a stressful and long process and there can be a lot of stories to scare you from wanting to apply for it at all but you ARE protected by your rights. All 27 amendments apply to you (If you are a green card holder) One amendment to really keep in mind is number 14 which states “All persons born or naturalized (Being naturalized) in the United States and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.” And number 8 which states “Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances” Laws apply to you this is why you must follow them but the ones that may help you in your case you may wanna pay more attention to and learn
Success can be an extremely broad subject. There is an abounding amount of different views on what the “true” definition of success is. Personally, I believe that success is finding happiness. Success is waking up in the morning and not having to worry about whether or not the bills are going to be paid this month. Success is having a job that you enjoy going to every day. Success is having friends and family who love and support you. Success does not mean that one has to be exceedingly rich or have a lakeside mansion. As long as they are happy, they have succeeded in life.
Sending data through the internet efficiently has always posed many problems. The two major technologies used, Ethernet and Asynchronous Transfer Mode (ATM), have done an admirable job of porting data, voice and video from one point to another. However, they both fall short in differing areas; neither has been able to present the "complete" package to become the single, dominant player in the internet market. They both have dominant areas they cover. Ethernet has dominated the LAN side, while ATM covers the WAN (backbone). This paper will compare the two technologies and determine which has a hand-up in the data trafficking world.
The original ballparks were made out of wood and they were extremely dangerous because of the fire hazard they created. But, in 1909 the first steel ballpark was created. These ballparks were usually extremely expensive and elaborate. Some ballparks were said to replicate a palace. However, the ballparks that the organized game of baseball were played in had some drawbacks, mainly in their placement. The ballparks were found in middle-class urban neighborhoods, miles from the major cities. Spectators had to take a thirty to forty minute trolley ride to arrive at the ballparks. Also, the ballparks were usually oddly shaped in order to fit within the neighborhood that they were placed in. Baseball had an organized way to play the game but, they did not have fields that were a particular shape and size until the late twentieth
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets the user or users share hardware such as Printers and scanners. The speed of access between the computers is lighting fast because the data has a short distance to cover. In most cases a LAN only occupies one or a group of buildings located next to each other. For larger area need there are several other types of networks such as the Internet.
1) Reproductive health is important for women around the world. Women with reproductive capacity require ongoing health care to protect their health and the health of their newborns. The increased and sustained investment in reproductive health will ensure that women are able to receive preventive care prior during and after their pregnancies (Singh, Darroch, & Lori, 2014). This will help decrease the number of infants deaths related to pregnancies. It will also decrease the number of deaths with pregnant women. Investing in reproductive health may decrease the burden that steams from infant and women deaths that are related to pregnancy. Reproductive health has improved globally. However, disparities still exist between developed and developing countries (Singh et al., 2014). Therefore, it is important for countries throughout the world to invest in new technologies to strengthen reproductive health in areas that lack adequate preventive reproductive health services. This will allow countries to decrease the number of still births, miscarriages, and infants and women deaths. This will return the burden of these conditions. Moreover, many
Department of Health & Human Services defines nutritional assessment as: “measurement of indicators of dietary status & nutrition-related health status to identify the possible occurrence, nature, & extent of impaired nutritional status,” which can range from deficiency to toxicity” (Nnakwe, N. E., 2018). Tools to help assess will include anthropometric, biochemical test, clinical/physical observations, dietary intake data, and epidemiological information. I should be able to identify and label specific nutrition problems that can be independently resolved or improved through nutrition intervention. I will look at the etiology and the signs/symptoms are determined during the nutrition
This report will describe the two forms of data communications in terms of the physical interfaces and modes of operation. It will describe the features of data communications equipment in relation to synchronous and asynchronous communication including modems, network terminating units and sending and receiving equipment.
In conclusion, success is one of the most precious moments in life where we can say we made it while looking back at all the hard work we put in. Success is achieved by the amount of work we put in and happiness we get out. Being sixty years old with an abundant supply of money is pointless because we spent the prime of our life working hard with minimal happiness to achieve what we have now. Success is about venturing through the ups and downs in life, so that we can be the happiest down the road.
Over time the different means of receiving the internet have changed several years ago, a phone line would proved a slow connection to the internet, but would not be useful when storing and...