QUESTION1 Power Problems Alternating current (AC)‚ which is “food” to PCs and other network devices‚ is normally 110 volts and changes polarity 60 times a second (or 60 Hertz). These values are referred to as line voltage. Any deviation from these values can create problems for a PC or other network device. Power problems fall into three categories: * Overage * Underage * Quality Power Overage Problems During a power overage‚ too much power is coming into the computer. Power overage
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The Entity Relationship Diagram (ERD) depicts a conceptual data model that incorporates some of the important scientific information about the real world. It adopts a natural view that the real world consists of entities and relations (Chen‚ 1976). One objective of the ERD is to create a simple‚ easy to understand and conveniently presented data model consisting of entities‚ attributes‚ relationships and cardinalities. The model serves as tool for database design‚ where the model can facilitate communication
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from user point of view in the context of local area network. 2. Explain the basic concepts of communications within Local Area Network with emphasis on access techniques and basic protocol. 3. Providing user services Assignment Overview: * This is an individual assignment * The student must produce a written report and must be submitted on the dateline * The student expected to present the assignment Question: You are a network engineer at a private office. You are required to
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II. Website Information A. Scope The standards of this project include product delivery‚ privacy‚ safe and secure payment‚ and service. It provides an exact calculation of payments and eliminates manual process of monitoring orders. Its limit is it cannot ship overseas. B. Target Audience Teens nowadays are very conscious about on how they look‚ some are just fond of shopping which they call "shopaholic"‚ and some just want to recreate themselves on buying excessive things. Thus
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communicate successfully. IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4‚ 3.6‚ 5 and 60 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee (IEEE 802). The base version of the standard was released in 1997 and has had subsequent amendments. These standards provide the basis for wireless network products using the Wi-Fi brand. The most prevalent is 802.11b. Equipment using
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Chalmers‚ chapter 7:� The Limitations of Falsificationism Problems stemming from the logical situation (87) Recap: the �logical point� in favour of falsificationism over inductionism is that‚ while no finite number of observation sentences will prove a general claim‚ one single observation sentence will disprove it.� BUT: 1. 1. Falsificationists accept theory-dependence (and hence‚ fallibility) of observation sentences‚ therefore the observation sentence can be rejected instead of the theory
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LIMITATION OF COMPUTER Computer has done this and that. Actually this is not the computer which has done this but the user. Despite its various features‚ a computer does have the following limitations: a.No Self Intelligence Today‚ a computer is able to do a work which is impossible for man. Computers are used to do risky and dangerous work and where sharp actually is needed. But it does not have any intelligence of its own. It works according to the instruction only. b. No Decision-Making power
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Network security Security has moved to the forefront of network management and implementation. The overall security challenge is to find a balance between two important requirements: the need to open networks to support evolving business opportunities‚ and the need to protect private‚ personal‚ and strategic business information. The application of an effective security policy is the most important step that an organization can take to protect its network. It provides guidelines about the activities
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and pirating in the networks is very easy and it can lead to information damage or robbery and also if one compute is affected by a virus it can spread to the other easily. 3. What technology allows computer networks without wires? Wireless networking allows computer networks without wires. 4. Describe the difference between a LAN and a WAN. LAN is local area network‚ it consists of a group of networked computers that all located in one building. But WLAN is wide area network‚ it is a group of
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What is an Interview? One man‚ asked if he does much interviewing‚ thinks of the time he chose his secretary and of the day he had to counsel one of the management trainees- and answers practically none’. Another man with a similar job thinks of the many informal discussions he has with his superior and with customers‚ with colleagues and subordinates- and answers that he is interviewing all the time. The difference lies not in their work but in their interpretation of the word interview. The
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