Network Case Study Essay Example for Free

Network Case Study Essay 1. Which of the following is true about a TCP/IP network? A) The network uses only standards defined in TCP/IP RFCs. 2. Which of the following terms is not a common synonym for TCP/IP model? (Choose two answers.) D) TCP/IP mapping and C) Ethernet 3. Think generically about the idea of a networking standard, ignoring any particular standard or standards group. Which of the following is typically true of a standard? (Choose two answers.) B) It exists as a deployed network device, which people can visit on the Internet. C) It has been passed through some form of review and approval or certification process. 4. Contrast an international standard as compared to a de facto standard. (Choose two answers.) B) International standard documents have been reviewed more thoroughly. D) International standards typically mean that the standards group has been authorized by many countries to create standards that apply to multiple countries. 5. Which of the following are true about the commonly used version of the TCP/IP model as shown in this chapter? (Choose two answers.) C) The physical layer sits just below the data link layer. D). The network layer sits in the middle of the five layers. 6. The TCP/IP model refers to standards other than those the IETF defines in RFCs. Which of these standards groups is typically the source of external LAN standards? (Choose two answers.) A) ITU B) IEEE 7. Which of the following is not a typical reason for a group of ten companies to start a vendor group, for the purpose of pushing a new networking technology? C) To improve the chances that the technology will be standardized 8. The TCP/IP and OSI models have some obvious differences, like the number of layers. Think about the more commonly used version of the TCP/IP model discussed in this chapter, and then think about how to talk about TCP/IP using OSI terms. Which of the following is a correctly phrased statement for how to use OSI terminology? B) IP is a network layer protocol. 9. Historically, which of the following models were the earliest models used in corporate networks? A) Vendor models 10. Which of the following statements is true when comparing the OSI and the TCP/IP mode l as defined in RFC 1122? B) The lower four layers of TCP/IP define the same kinds of functions as the matching layer numbers from OSI. 11. A network engineer connects two PCs (PC1 and PC2) using Ethernet NICs and an Ethernet cable that has copper wires inside. The two PCs communicate successfully. Which of  the following happens when PC1 sends bits to PC2? D)PC1 converts the bits to sound waves, and the NIC uses an A/D converter to send the data over the cable. 12. A TCP/IP network includes an Ethernet LAN with 10 PCs uses a LAN switch. PC1 sends data intended for an app running on PC2. Which of the following mechanisms does Ethernet define so that PC2 receives and processes the data? A)The Ethernet header lists PC2’s MAC address so that PC2 will realize that the data is meant for PC2. 13. Two network pros are having a conversation about some issues in a network. They discuss some issues related to how PPP forwards data, so they happen to be discussing the data structure that includes the PPP header and trailer. Which of the following terms do they use? B) Packet 14. Which of the following are true facts about IP addresses? (Choose two answers.) C) Are listed in the data-link trailer D) Used by routers to make a forwarding decision 15. Which of the following answers is true about Ethernet MAC addresses? A) 48 bits in length C) Are listed in the data-link trailer 16. Which of the following statements is true comparing LANs and WANs? (Choose two answers.) A) LANs generally connect devices that are nearer to each other, compared to WANs. D) LANs are purchased, and WANs are leased. 17. Which of the following answers list true facts about the data link layer of TCP/IP? (Choose two answers.) B) Two TCP/IP data-link protocols are Ethernet and PPP. C) Data-link protocols define addresses that identify devices connected to the underlying physical link. 18. Which of the following answers list true facts about the network layer of TCP/IP? (Choose two answers.) B) The two primary protocols are TCP and IP. C) IP provides logical addressing and routing ser vices 19. Which of the following answers lists true facts about the transport layer of TCP/IP? B) The two primary protocol options are TCP and IP. C) TCP provides error recovery services to application layer protocols that use TCP. 20. A PC user opens a web browser and sends a request to a web server to load a new web page. Three routers forward the data as it passes from client to server. Consider the data plus all headers and trailers that go from the web client to the web server. Which of the following headers go all the way from the web client to the web server? (Choose three answers.) A)Data-link header B) Network layer header C) Transport layer header

The Decoherence Of Measurement :: essays research papers

<a href="http://www.geocities.com/vaksam/">Sam Vaknin's Psychology, Philosophy, Economics and Foreign Affairs Web Sites Arguably the most onerous philosophical question attached to Quantum Mechanics (QM) is that of Measurement. The accepted (a.k.a. Copenhagen) Interpretation of QM says that our very act of conscious, intelligent, observable measurement – determines the outcome of the measurement in the quantum (microcosmic) realm. The wave function (which describes the co-existing, superpositioned, states of the system) collapses following a measurement. It seems that just by knowing the results of a measurement – we determine its outcome, determine the state of the system and, by implication, the state of the Universe as a whole. This notion is so counter-intuitive that it fostered a raging debate which has been on going for more than 7 decades now. But, could we have turned the question (and, inevitably, the answer) on its head? Is it the measurement that brings about the collapse – or, maybe, we are capable of measuring only collapsed results? Maybe our very ability to measure, to design measurement methods and instrumentation, to conceptualize measurement and so on – are thus limited as to yield only the collapse solutions of the wave function? Superpositions are notoriously unstable. Even in the quantum realm they should last but an infinitely split moment of time. Our measurement apparatus is not as refined as to capture a superposition long enough to justify the title of â€Å"measurement† or â€Å"observation†. By contrast, collapses are sufficiently stable to last, to be observed and measured. This is why we measure collapses. But in which sense (excluding longevity which, anyhow, is a dubious matter in the quantum world) are collapse events measurable, what makes them so? Collapse events are not the most highly probable – some of them are associated with low probabilities and still they occur and are measured. Ex definitio, the more probable states will tend to be measured more (the wave function will collapse more often into high probability states). But this does not exclude the less probable states of the quantum system from materializing upon measurement. The other possibility is that the collapse events are carefully â€Å"selected† for some purpose, within a certain pattern and in a certain sequence. What could that purpose be? Probably, the extension and enhancement of order in the Universe. That this is so can be easily substantiated: it is so. Order increases all the time. This is doubly true if we adopt the anthropocentric view of the Copenhagen Interpretation (conscious, intelligent observers determine the outcomes of measurements in the quantum realm).

Rene Descartes six meditations Distinction of Self from the Body Essay

Rene Descartes was a French Mathematician and a modern Philosopher who developed an original philosophy based on sciences aimed at being stable and likely to last. His method was based upon premises of senses, reason, doubt and belief. Like most philosophers his quest was for Truth and knowledge. However the nature of Truth and knowledge remains debatable among philosophers to this day. It is worth noting that a contemporary modern philosopher said at the beginning of the 21st century, the beginning of ‘ Information Age ‘ , â€Å" Study of philosophy is now reduced to the study of language. We are distinct from our bodies ! Since the advent of human civilization many men have preoccupied themselves with philosophical thoughts of the distinction of self from the body. These metaphysical ideas , sometimes ontological, lie on the borderline of religious theology and philosophy. With discoveries in the field of physical sciences like Einstein’s ‘ Relativity ‘ the human conception of space, matter, time and forces has become clearer. This has further fuelled interest in the field of philosophical investigation of the relationships between mind, matter and the supernatural. This activity is a commonplace past time of the educated and curious. The scientific and methodological study of any branch of knowledge involves the formulation of – Thesis, Hypothesis and Anti – Thesis. Every Thesis has an Anti–Thesis. Is the self distinct from the body ? The senses are deceptive! What we see is spurious. Our memory deceives us. Hence a Truth that can be established is that nothing is certain. Hence it can be assumed for the time being that our senses and bodies are not true. We are probably distinct from our bodies. Rationality is questionable ! Man is known as a ‘ rational animal’. But the idea of rationality and the distinction between a man and an animal are debatable. Man certainly has to face an obvious ‘ identity crisis’ if material knowledge is to be trusted. The idea of a soul distinguishes self from the body ! All phenomena can’t be explained by sense-perception, thinking and physical bodies. They have to be attributed to a super-natural phenomena , ‘ the soul’. If the self is to be distinct from the body it could be in the form of the soul. The power of self-movement, sensation and thought as according to the judgment of Rene Descartes are foreign to the nature of body. These conclusions are based on Descartes philosophical experiments with himself using the faculty of his mind. He uses his mind to probe the co-relation between subjectivity, objectivity and their distinctness from body. This method has been Descartes most powerful tool and which makes him unique in the family of modern philosophers. The awakening during sleep is an experiment. Descartes argues that when asleep he has perceived through senses many things he can’t perceive through senses while awake. These are once again Descartes experiments with himself. Descartes is careful nough to recollect his thoughts and experiences for the object of philosophical study. ‘Thinking’ is separate from ‘being’. Descartes uses his imagination to conclude that he might exist separate from his body as a source of ‘thinking’. In his legendary famous statement he once declared , â€Å" I think therefore I am. â€Å" Human mind and judgment are prone to error . Hence the truth has to be away from the Human mind and body. Descartes reached a conclusion that there does exist a God. God is perfect in his judgment because his mind is infinite. This is obviously not true with human beings. Hence their judgment is subject to errors and faults. There is also a philosophical method of reaching the Truth by elimination of errors. Considering the belief that their does exist a Universal Truth away from the limitations of the human body it is reasonable concluding that we are distinct from our bodies. The existence of God is an irrefutable evidence ! Thesis that there does exist a God strengthens the concept of distinction of self from the body. It would be contradictory associating God to a body; God, Descartes assumed is infinite. Also, the idea of life after death in the form of soul which is the belief of literally every religious heology strengthens the belief that we are distinct from our body. Rene Descartes experimented with the mind ! Descartes claims in ‘ The Fourth Meditation’ that he has trained his mind to separate from his senses and dwell only in the intellect. The result were observations and conclusions that he was totally separate from matter. Descartes uses his ability at philosophical meditations, the popular method of study and research by a philosopher. The Human Will Descartes concludes extends beyond the bodies. With the human will, many philosophers believe it is possible to meditate and separate the consciousness rom the body. Modern Science refutes distinction of body from mind thesis. Descartes himself was once a scientist before he took to philosophical pursuits. A scientist, for example a Doctor would immediately rubbish the claims of the separation of self from the body citing encyclopedias of scientific evidence. Carl Jung’s Experiment nulls the idea of a soul. This famous Psychologist conducted an experiment and concluded that there is no soul ! The distinction between self and body is not recognized by modern psychology books. Philosophical methods might be fallacious. Philosophers employ methods based n speculations and subjectivity. These might be inaccurate and also subject to a difference of opinion even amongst philosophers. Whereas science is based on empirical experiments which no one can challenge once accepted and established. There is a self – concept in the science of Psychology. The self concept has an aura of mysticism associated with it. No one can see, feel or touch the self concept. It is reduced to ‘I’ and ‘me ‘ from the common sense point of view by nearly all domains of knowledge. Popularly the psychologists associate the self concept , the I – Self, with the ndividual and his states of mind – Conscious, subconscious and the unconscious. Body- Ego concept can be an evidence of self and body singularity. The genesis of mental structure advocated by Hartmann, Kris and Loewenstein advocate an ego state known as the Body Ego. They suggest with impressive arguments that the ego and the id should be conceived the result of an undifferentiated state. Conclusion : The embodied self – concept generates a tension. The stream of consciousness can be believed to be located within the boundaries of a creature. The self ( its memories, eliefs and traits ) might not located within the boundaries of the creature. Our intuition equates ourselves with our consciousness. A point to be noted is that there is a dualism not only between mind and body but also between consciousness and mind ! The ancient scholarly philosophical debate ‘ Self is distinct from the body ’ is a challenging interdisciplinary study. However, the philosophy student is best equipped to handle it. The debate seems to have no end. That is what makes a debate an interesting academic field of study. Philosophers and philosophy students have to be cautious that in their xuberance they do not unwittingly clash with scientific evidence or infringe with cherished religious and theological beliefs. The society punished Galileo because he was ahead in time than the people. The times have changed remarkably. These days society is more tolerant to new ideas. Even blasphemy against Jesus doesn’t shock the West anymore. Recent headlines of a popular newspaper says that the church has forgiven Beatles for claiming they were more popular than Jesus. Philosophers and philosophy students can play a timely role in all ages. The clear message is that they need not ostracize themselves from the society.

The Meaning of Dawah - Free Essay Example

Sample details Pages: 3 Words: 889 Downloads: 5 Date added: 2019/10/10 Category Religion Essay Tags: Islam Essay Did you like this example? Possesses any individual ever before claimed everything straight to you or even responsible for your back that was actually disheartening and also had not been correct? Were you unconcerned regarding it? Highly likely that you were not†¦myself included. Just how around pointing out undermining features of your moms and dads, family members, or even close friends that had not been real? Were you unconcerned regarding it? Most likely certainly not. Neither was I. Don’t waste time! Our writers will create an original "The Meaning of Dawah" essay for you Create order One of the most all-natural response was actually to instantly speak out as well as quash the inaccurate insurance claims straight to the individual specifying all of them. This, obviously, if one has the ability to take care of subduing the rage sparked through inaccurate insurance claims. Regardless of whether often the insurance claims are actually certainly not that inflamed, but our team are actually number one in our pursuit for fair treatment for our own selves and also for those closest to our company. Thus, why? as well as I inquire on my own this to begin with, are our experts thus entirely contented when it concerns severe untrue insurance claims created regarding The One True God, Allah (SWT Subhanahu Wa Taala, Glorified and also Exalted is He)? The only solution that I lately ate on my own was actually that I only had not been actually performing what I am actually expected to carry out which is actually dawah, or even getting in touch with folks to Islam. My affection for Allah (SWT) just improves when I think about His greatest persistence as well as forgiveness to permit it to carry on and also provide individuals the chance to find to the proper understanding. If ones supervisor or even supervisor detects airborne also the idea of an inaccurate case concerning themself or even herself created through somebody, that individual is actually completed in some kind or even yet another. The globe will never ever have actually also started if it had not been for Allah (SWT)s forgiveness. Nonetheless, those that know the reality, ought to take care of misleading cases right away in a tranquil method without encounter or even pounding the audience. Our company should keep in mind that though a number of our company were actually lucky to become birthed to Muslim moms and dads, others were actually birthed to moms and dads along with a really various religion device. They were actually submersed during that religion their entire lifestyles. To modify the incredibly base of their lifestyles, takes fantastic attempt and also reparation. This is actually no reason however, since numerous folks have actually properly completed this when they listened to the fact of Islam. On top of that, contacting yet another individual to Islam need to never ever be actually lowering oneself considering that just Allah (SWT) has actually managed that person the possibility of dawah. One carries out certainly not need to be actually an intellectual to welcome others to Islam. She or he ought to possess standard know-how of Islam and also various other religious beliefs as well as if concerns or even problems are actually raised that carries out certainly not understand, one must claim thus as well as research study or even locate the response coming from an individual extra proficient, rather than comprising a solution that is actually inaccurate. Dawah makes it possible for the individual getting in touch with individuals to Islam, to continually boost his/her compassion for others. It is actually a method of creating connections along with individuals that might be actually extremely various in their reasoning and also way of living as well as arouses caring. Everybody typically finds to go back to recent, to an opportunity when lifestyle was actually extra simple. Dawah finds to complete this in coming back folks to their initial condition or even fitra. Our company are actually all birthed within this condition that is actually dedicated to The Creator as well as just misbehave due to tips that our team are actually instructed and also pick as our company age. Most of us possess the exact same origins. Predictor Muhammad (SAW Sallallahu Alaihi Wasallam, calmness as well as benefits upon him) was actually the ideal daee. He (SAW) was actually best in know-how as well as etiquettes. He (SAW) absolutely looked after the best for humankind despite any individuals history or even standpoint on any sort of problem. Comprehending his (SAW)s lifestyle through examining the Seerah (profile) merely enriches ones capability for dawah. No matter unfortunate activities neighboring ones childbirth, lifestyle, as well as fatality, just one best disaster exists. If one selects this best catastrophe after that his/her lifestyle and also its own function are actually dropped. If one carries out pass by this greatest catastrophe, at that point his/her lifestyle and also its own function are actually certainly never dropped. The supreme and also ultimate disaster is actually certainly not understanding the Greatness of Allah (SWT), his final Messenger Prophet Muhammad (SAW), and also the honest truth of Islam. Additionally, despite ones lifestyle as well as its own results as well as frustrations, the greatest excellence is actually recognizing these and also it is actually the obligation of Muslims to phone folks to Islam as well as for the attender to take the 1st step.