Free Essay

Networks 2b

In:

Submitted By gc116
Words 2608
Pages 11
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 can take two forms:

* A power spike occurs when the power level rises above normal levels and then drops back to normal in less than one second.

* A power surge occurs when the power level rises above normal levels and stays there for more than one or two seconds.

Typically, power surges last longer than a second or two, and they may last for several minutes.
Two types of devices are used to protect computers and other network devices from power overage problems:
* Surge protectors
* Line conditioners

A surge protector contains a special electronic circuit that monitors the incoming voltage level and trips a circuit breaker when the overvoltage reaches a certain level (called the over- voltage threshold). The problem with surge protectors is that the threshold is set too high to be safe.Nor does a surge protector protect against power surges and spikes that are lower than the threshold. For the most part, a surge protector is better than nothing, but not by much. It is really only a multiple-outlet strip and should not be considered anything more.

Line conditioners are a much better choice for protecting against surges and spikes. Line conditioners use several electronic methods to “clean” all power coming into them. An Uninterruptible Power Supply uses a battery and power inverter to run the computer equipment that plugs into it. A battery charger continuously charges the battery. The battery charger is the only thing that runs off line voltage. The computer itself runs off steady voltage supplied by the UPS.

Power Underage Problems

Power underage occurs when power levels drop below the standard, and they are almost as common as power overages. There are three types of power underages:
* Sag is an inverted spike. Sags occur when power levels drop below normal and rise back to normal within a brief period of time (usually less than one second).

* A brownout, on the other hand, occurs when power drops below normal levels for several seconds or longer. In other words, a brownout is an inverted surge.

* A blackout is a total loss of power for several seconds, several minutes, or several hours.

To ward off power underage problems, you need only one device: a UPS, which allows net- work devices to continue to function even in the complete absence of power. Some are intelligent and can shut down your computer in the case of a blackout.

Power Quality Problems
Power quality problems generally indicate that stray frequencies have entered the power supply through the power cord.

Electrostatic Discharge Problems
ESD occurs when two items with dissimilar static electrical charges are brought together. Nature doesn’t like things to be unequal, so static electrical charges will “jump” from the item with more electrons.

Electromagnetic Interference Problems
EMI occurs when magnetic fields intersect network or computer cables, causing interference in the cables. Motors and transformers, which are everywhere in an office (in air conditioners, heaters, and so on), are a typical source of EMI.. Radio Frequency Interference Problems
RFI occurs when radio signals interfere with the normal operation of electronic circuits (computers in particular).
Network devices (including computers and servers) are very sensitive to temperature extremes and can fail prematurely if subjected to them.

QUESTION2
You can use a wireless network (WLAN) to share Internet access, files, printers, game consoles, and other devices among all the computers in your home. After you’ve completed the initial wireless router setup and added your computers and devices to the network, you can use your home network to surf the web or to play online games—whether you're sitting in your living room or relaxing in your backyard.

2.2

Client
The client is software that allows your machine to talk to servers on the network. Each server vendor uses a different way of designing its network access. There- fore, if a computer needs to get to both a Novell and a Microsoft network, the computer must have two pieces of client software installed one for each type of server.

Adapter
The adapter is, technically, the peripheral hardware that installs into your computer, but in this case, it refers to the software that defines how the computer talks to that hardware. If you do not have the proper adapter software installed, your PC will not be able to talk properly to the NIC, and you will not be able to access the network until you change the adapter to one that is compatible with the hardware.

Protocol
Once the client service and the adapter are installed, you have cleared a path for communication from your machine to network servers. The protocol is the computer language that you use to facilitate communication between the machines

Service
A service is a component that gives a bit back to the network that gives it so much. Services add functionality to the network by providing resources or doing tasks for other computers.

2.3

1. Connect to the Internet
Make sure that your Internet connection and your DSL or cable modem are working. Your wireless network depends on this connection.

2. Connect your wireless router
These are the steps for connecting a stand-alone wireless router to your DSL modem or cable modem. If you have a modem router, follow your ISP’s instructions for connecting your network.
Since you'll be temporarily disconnected from the Internet, print these instructions before you go any further.
First, locate your cable modem or DSL modem and unplug it to turn it off.

Next, connect your router to your modem: * If you currently have your computer connected directly to your modem: Unplug the network cable from the back of your computer, and plug it into the port labeled Internet, WAN, or WLAN on the back of your router. * If you do not currently have a computer connected to the Internet: Plug one end of a network cable (included with your router) into your modem, and plug the other end of the network cable into the Internet, WAN, or WLAN port on your wireless router. * If you currently have your computer connected to a router: Unplug the network cable connected to the Internet, WAN, or WLAN port from your current router, and plug this end of the cable into the Internet, WAN, or WLAN port on your wireless router. Then, unplug any other network cables, and plug them into the available ports on your wireless router. You no longer need your original router, because 3. Configure your wireless router

Using the network cable that came with your wireless router, you should temporarily connect your computer to one of the open network ports on your wireless router (any port that isn't labeled Internet, WAN, or WLAN). If you need to, turn your computer on. It should automatically connect to your router.
3. Configure your wireless router

Using the network cable that came with your wireless router, you should temporarily connect your computer to one of the open network ports on your wireless router (any port that isn't labeled Internet, WAN, or WLAN). If you need to, turn your computer on
4. Connect your computers, printers, and other devices to the wireless network
You can connect multiple computers, printers, and many other peripheral devices, such as an Xbox, Xbox 360, TV, cell phone, iTouch, or iPad, to your network. Before you connect them to your network, make sure that the computer or device you want to add has built-in wireless networking or a network adapter
5. Share files, printers, and more
Now that your computers and devices are connected, you can begin sharing files, printers, games, and much more. One of the top reasons for setting up a home network is to share a printer. Another is to share files. The steps for doing this, however, aren’t always obvious, so here are instructions to get you started:

2.4

Interference * All wireless networks, such as cellular telephone networks and wireless local area networks, or WLANs, rely on broadcasting stations that transmit signals. These stations, which include large cellular antenna towers as well as small wireless Internet routers, transmit signals at particular radio frequencies

Obstructions
Wireless signals travel fastest through open spaces. So if there are large or numerous obstructions between wireless transmitters and wireless receivers, signal strength suffers. For WLANs, common obstructions that come between wireless routers and wireless devices, weakening signal strength, include walls, floors, furniture and appliances.
Location
* Even when there are few obstructions between a wireless transmitter and receiver, the overall distance between them affects wireless signal strength. Wireless signals cannot travel indefinitely, as they eventually disperse and become absorbed by the surrounding environment. With a WLAN, a wireless router positioned at one end of a building may not be able to communicate with a device at the opposite end. While cellular networks provide signals that can travel farther, cellular devices can still lose reception when they stray too far from transmission towers..
Hardware
* In some instances poor wireless signal strength is the result of inadequate or dysfunctional hardware. For example, if a laptop computer has an outdated or damaged wireless network adapter card, it may struggle to receive a signal from a wireless router. Alternatively, if a wireless router has a damaged or poorly designed antenna, it may not be able to provide as strong a signal.

QUESTION3
3.1
Broadband Connections
A broadband Internet connection provides high speed internet access at transmission rates above 256kbits/sec but typically (UK) above 4Mbits/s (for ADSL).
Broadband connections can be provided by 4 main access mechanisms-
ADSL, cable and WI-FI (wireless) and GSM (mobile phones).
Broadband access can be provided by several access mechanisms: * DSL/ADSL (digital subscriber line) * Cable Internet * Wireless Internet * GSM (mobile phones) * Satellite Internet * Electric power lines- are also being considered for providing broadband internet access.
Although cable and DSL are broadband technologies ADSL is the more common, as it is carried over the standard telephone lines. For home/home office users ADSL is the standard option.
DSL/ADSL Broadband
DSL (Digital Subscriber Line)/Broadband comes in two forms: * Asymmetrical Digital Subscriber Line (ADSL), – provides different upload and download speeds (most common) * Symmetrical Digital Subscriber Line (SDSL)- provides the same speed in both directions.
Monthly Cost: Starts at approx. £13-£30 for ADSL per month
Speed: 128Kbps – 20Mbps
Hardware Requirements: ADSL modem (often included). If you want to connect multiple computers: one ADSL router (approx. £50-£200 if note included) Advantages | Disadvantages | * Always on connection * Can use a telephone and Internet simultaneously * Wide variety of speeds and prices. * Large choice of service providers (ISPs) | * Available only in limited areas but this is changing rapidly * Speed vary widely * Some providers have monthly download limits. ( 10GB per month is typical) * Requires special termination equipment to be fitted by the telecom company at both ends of the telephone line. * Exposes computer to Internet so you need to install firewall software. (Windows XP has a built in firewall). |
Wireless Broadband
Wireless broadband is of interest for mobile users. The wireless technology used is the same as is used in home wireless networking and hence if you have laptop/pda is equipped for connection to a home or office wireless network then it will also work on a public wireless network.
Monthly Cost: Often free and provided bundled by some ADSL broadband packages
Speed: 1-54 Mbps
Hardware Requirements: Wireless (Wi-FI) equipped laptop/PDA. Advantages | Disadvantages | * Always on connection when connected. * Requires you to be in a wireless hotspot. Your ISP will provide a list of sites. * Does not support wireless roaming. * Large choice of service providers (ISPs) | * Available only in limited areas usually public areas like airports, train stations etc * Speed varies depending on signal quality. * Exposes computer to Internet so you need to install firewall software. (Windows XP has a built in firewall). (see Internet computer security) |
Cable Broadband
Cable connects you to the Internet through a coaxial cable usually using the same line as your TV service. Cable connections offer very high connection speeds, 1 to 4 Mbps, but the connection may be shared with other users. This means that you can experience much slower speeds due to congestion.
Monthly Cost: £14-£50 per month
Speed: 500 Kbps to 2 Mbps
Hardware Requirements: Cable Modem (Usually included). If you have multiple computers then you might need cable router to share connection. Advantages | Disadvantages | * Wide availability on cable networks * Relatively inexpensive | * Sharing with neighbours poses some unique security risks and congestion problems * Router required for more than one computer * Primarily for home users |
.
Mobile Broadband
In the developing world were no fixed land line system is available mobile broadband is becoming the predominate method that people use to connect to the Internet..
Modern mobile phones in the UK (2012) use the 3G network (3rd generation mobile telecommunications) with speeds of several Mbit/s.
Which although much faster than the earlier 2G networks it is still much slower than typical ADSL Broadband which most home users/businesses use.
There are two main mechanism used. One uses a Internet capable mobile phone like the iphone the other uses a USB dongle (3G modem) and a laptop.
Monthly Cost: Varies considerably pay as you options are available. Speed: .6 Kbps to 7.2 Mbps
Hardware Requirements: 3G capable Mobile Phone, or USB dongle and package Advantages | Disadvantages | * Wide availability * Can be used when on the move | * Slow in comparison with ADSL * Can be expensive |
4G Broadband – This is currently in the initial phases of being rolled out in the UK. It uses HSPA+ access mechanism with speeds of upto 168 Mbit/s in the downlink and 22 Mbit/s in the uplink.
Capability is already built into Google Nexus 7 (mobile data model) and Nexus 4 mobile phone.
Dial-Up Analogue Connection -56K
Monthly Cost: Varies from 1p per minute to £13 per month (unlimited access)
Speed: Up to 56Kbps
Hardware Requirements: 56k modem included in most modern PCs (approx. £25-£50 ) Advantages | Disadvantages | * Inexpensive * Wide availability | * Using a modem ties up a phone line * Connection is not “always on” * Slowest access method * Security danger see rogue Internet diallers |
ISDN
Similar to dial-up, ISDN establishes a connection to your service provider when you access the Internet. However, ISDN circuits are 64-128K and fully digital.
ISDN is not easy to install and troubleshoot and requires you to have an ISDN box installed by your telephone company.
It is frequently used by small businesses as in addition to the ISDN line you can also use a normal telephone line at the same time . This means you can access the Internet as well as talking on the telephone.
Monthly Cost: As Analogue dial up
Speed: 64Kbps – 128Kbps
Hardware Requirements: ISDN card (£30-£60) or router ( £200-£300) Advantages | Disadvantages | * Lets you talk and surf simultaneously. * Faster than 56kbps analogue * Suitable for attaching more than 1 PC to the Internet ( 2-6 light users) | * difficult to setup * Available only in limited areas * Requires special termination equipment to be fitted by the telecom company at both ends of the telephone line * Outdated being replaced by DSL * Not practical for more than 6 computers (depending on usage) * Security danger see rogue Internet diallers |

Similar Documents

Premium Essay

Effects of Social Network on Students Performance

...Issue 3 — September 2003 EFFECTS OF SOCIAL NETWORK ON STUDENTS’ PERFORMANCE: A WEB-BASED FORUM STUDY IN TAIWAN Heng-Li Yang Professor Department of Management Information Systems National Cheng-Chi University 64 Section 2, Chihnan Road, Mucha Dist., 116, Taipei, Taiwan Phone: 886-2-29387651 Fax: 886-2-29393754 yanh@mis.nccu.edu.tw Jih-Hsin Tang Phd Candidate Department of Management Information Systems National Cheng-Chi University Faculty of Management Information Systems Tak Ming College 56 Section 1, Huan-Shan Rd., Taipei, Taiwan Phone: 886-2-26585801 jefftang@mail.mis.takming.edu.tw ABSTRACT This research investigates the effects of social networks on students’ performance in online education which uses networking as an adjunct mode for enhancing traditional face-to-face education or distance education. Using data from a 40-student course on Advanced Management Information Systems (AMIS), we empirically tested how social networks (friendly, advising, and adversarial) related to students’ performance. First, advising network variables are positively related to student performance both in the class and on the forum. Adversarial variables are negatively correlated with almost all students’ performance. Second, advising and adversarial network variables are good determinants for overall academic performance; however, adversarial network variables are not influential on students’ performance on the forum. Friendship network variables are not determinants of students’ performance...

Words: 3762 - Pages: 16

Premium Essay

Computer

...in researching   1) Developing a search strategy showed me how to organize my material and stay on topic. It also introduce me to key concepts which I have been using in my classes when studying and taking notes. Ironically I found using this method at work as well. Recently I found a solution to an ongoing network problem and my manager approached me asking me to fully research the resolution draft an email and send it out to the entire team.By using the search strategy I was able to gather the correct information that was needed to draft the email and send it to my team. 2)The Boolean operator AND OR NOT stuck in my head the most. I learned that this method is the main component to an effective statement and to broaden or narrow your search. When I use to search google without using the Boolean operator I always wondered why the search engine always gave me along list of searchs that didnt really relate to what I was looking up. By using this method I was able to get the exact results that I wanted and as I mention above this method was also used when I did my initial search statement for the email I sent to my colleagues on how to properly resolve the network issue. 3)Lastly the most important component of a research project is to cite the resources appropiately. In this course i was introduce to several styles of citing. There are different citing styles for different  documentation styles. I had to go back and really study this method thoroughly as suggested by...

Words: 337 - Pages: 2

Free Essay

There After

...How would one counter an active attack? b) Give examples of two possible scenarios when one cannot be absolutely certain that an adversary is launching a modification-of-message attack or denial-of-service attack, even when the proper security protections are in place. Explain your answer. c) How could traffic analysis jeopardize security? Give an example to illustrate your answer. Question 2 (a) Is it likely to achieve perfect security for a network (i.e. to have a network that will never fail in terms of security) in the real business world? Give three possible reasons to substantiate your answer. (b) The computing speed is much faster these days compared to that some years back. On the other hand, old algorithms and systems are still in use. Give three reasons to explain this situation. Question 3 a) (i) Explain Security Services and Security Mechanisms. (ii) Suppose the main threat of a network is replay attack. Does the use of confidentiality services protect the network against such attack? Explain your answer. (iii) Is it always the case that only one mechanism can be used to achieve the provision of a particular service? Give an example to illustrate and explain the answer. (b) Explain how the following services ensure security of the systems or of data transfers and give possible example or scenario for each: i) Message authentication ii) Non- repudiation iii) Confidentiality ...

Words: 284 - Pages: 2

Premium Essay

Harriet's Chocolate Factory

...Case Study 1: Harriet’s Fruit and Chocolate Company Daniel Michovich Dr. Otto CIS532: Network Architecture and Analysis January 26, 2013 Mission Statement: Striving to be number one fruit and chocolate industry area wide. Introduction “Harriet’s Fruit and Chocolate Company was established in 1935 in the Pacific Northwest of the United States to ship gift baskets of locally grown peaches and pears to customers in the United States (Oppenheimer, 2011)” In regards to the physical infrastructure of Harriet’s Fruit and Chocolate Company, my investigation will reveal many important aspects to aid in the planning of the network design. First, I will determine the number of buildings to be used, as well as the distance between them and what equipment they will contain such as wiring closets or computer rooms and the current network devices. Determining the distance will help in the cabling design and wiring as well as the selection of technologies and devices to meet the design goals. My investigation will further reveal any architectural or environmental constraints, such as tall trees within the path that power lines may travel, that will assist in decisions such as whether wireless technologies are feasible as well as if there are any impediments to communications or installation, to include all hazards. Infrastructure architecture consists of the hardware, software, and telecommunications equipment that, when...

Words: 1326 - Pages: 6

Free Essay

Ecss Practice Exams

...| | |The most damaging of the denial of service attacks can be a _______________ attacks, where an attacker uses zombie software distributed | |over several machines | | | | | |[pic] | |Bot | | | | | |[pic] | |Distributed denial of service ...

Words: 2882 - Pages: 12

Premium Essay

Ipremier Case Study

...customer an opportunity to decide if they want the products or not. iPremier Company iPremier is one of the top retail business that sell the luxury items, profiting $2.1 million on sales $32millions in 2006. Since then sale has grown over 20% annually. There was a decrease, but everything works itself out. Upper management describes working at iPremier as intense. .Qdata is the company that host iPremier computer equipment and provided connectivity to the internet (Austin and Murray, 2007). Although Qdata offers monitoring of website for customer and network operation, they had not invested in advanced technology and was not able to keep staff. During 75-minute attack how well did they iPremier perform. What would you have done differently if you was Bob Turley Bob Turley is new Chief Information Officer and is currently in New York on business. AT 4.31 am he received a call, from the network been hack and wired email received with just the word “Ha”. The site was a DoS attack coming from about 30 locations, the purpose of the attack was an attempt to make the computer unavailable. iPremier was not ready for such an attached and didn’t have anything in order which would help them with such an attacked. The situation was poorly handled, and Bob did not contact anyone higher up to let them know what was going on. He didn’t know who to contact, whether to call police or FBI or who to contact at...

Words: 967 - Pages: 4

Free Essay

Trending & Aggregation

... | |*Document Date: |[2013-05-20] | | T&A Handbook [pic] Update Notes |Date |Version |Description |Author | |2013-05-20 |V1 |T&A Handbook |Elham Kalantari | Contents 1 Introduction 3 2 T&A Interfaces 3 2-1 Source Availability 3 2-2 Dashboards 4 2-2-1 General Information 4 2-2-2 Over Time Mode 5 2-2-3 Over Network Elements Mode 9 2-2-4 Dashboards Contextual Menu 9 3 Examples 10 Introduction This document will guide you through the Trending&Aggregation (T&A) user interfaces. Some examples are available at the end. T& A Interfaces 2-1 Source Availability [pic] : This icon allows the visualization of source file availability. By clicking on it, below window appears. [pic] :...

Words: 1080 - Pages: 5

Premium Essay

Computer

...afford to spend and if anyone is technical in the company or are they going to need some outside help to keep up maintenance after the system is in place. (this can add to the cost of the system) My next step would be to start asking some questions about the law firm. I would like to know what the law firm is in charge of doing. Criminal, civil, family or so on; I think this would give me a better understanding of some of the information I may be working with along the way. As a law firm I am sure they spend a lot of time in the courtrooms and in their home offices so other questions I would ask is if they have cell phones and laptops that will need to access information on the network; this will help in a couple of areas, firstly in deciding if we should consider cloud computing or a private network and secondly, how to set up files access and permissions by departments and depending on size of company, maybe servers. Being a law firm a big consideration would have to be security of the information they access and ways of accessing this information. I would like to talk with the employees also, just to get an idea...

Words: 500 - Pages: 2

Free Essay

Paper

...Ruben Quinones IT245 - Introduction to Network Management Colorado Technical University Online Professor: Dr. Shawn P. Murray Phase 1 Individual Project Due January 13, 2013 Table of Contents Section 1: Target Organization - Identifying the Network 3 Section 2: Diagramming the Network - Network Architecture 4 Section 3: Network Models 5 Section 4: Network Protocols and Agents 6 Section 5: Network Security 7 Section 6: Network Management 8 References 9 Section 1: Target Organization - Identifying the Network * My organization is located in Pompano Beach, FL with a secondary warehouse location at Sunrise, FL. The company employs around 1,400 to 1,500 employees which 300-400 are computer and mobile device network user. * All of our users must use password protected sign on to access the network which gives access to our main software systems. * The company uses to Dell servers, one for back up and one for daily accessing. * The IT department consists of 5 employees; * IT manager – Supervises all IT technicians and Help desk operators. * Network I technician – overviews and maintains network protocols, ensures regular server maintenance is executed. * Network II Technician – gives back up to Network I and provides different analytical services to users. * Help desk technicians I and II – Executes more regular tasks, such as user maintenance, printer set up, workstation access and set up, and mobile devices...

Words: 269 - Pages: 2

Premium Essay

Case 2.1 Server Downtime

...TO: FROM: DATE: February 15, SUBJECT: Server Downtime Problem Statement: This report contains my findings and recommendations as a result of my research. This is a look into the server downtime and problems with the primary network servers here at Widget Company. First we will be looking into the numbers and statistical results I have found. Statistical Results: Based on the data I was given during the month of April the network experienced 5 different problems, they are lockups, memory errors, weekly virus scan, slow startup, and manual restart. The results of these issues are. 22 times the server was down 735 Minutes of total time server was down * * Of those 22 times the server was down the breakdown of how frequently each one occurred is as follows. * * * * This shows that memory errors were the most frequent reason the server was down. Memory errors were also responsible for the most time at 34% or 250 Minutes. What is interesting is that while there were only 4 times the server was down for its weekly virus scan it was responsible for about 33% or 240 minutes of the server downtime. * * * * Aside for the 4 planned weekly virus scans of 60 minutes each. The server was down 18 times for 495 Minutes. Memory errors contributed to over half of this downtime. Next we will take a look at my recommendations based on the data. * * Conclusion * * The server was down for a total of 735 Minutes during...

Words: 323 - Pages: 2

Premium Essay

Unit 8 Assignment 1

...institutions, and a number of private security firms — all working to study and combat data breaches. Analysis With 47,000+ Security incidents analyzed, 621 confirmed data breaches studied, and 19 international contributors, Verizon has ample amounts of data to compile and use to better their network. This data can also be analyzed to see what types of people are making these breaches and what motives they may have for doing so. In the 2013 DBIR, 69% of breaches were spotted by an external party and 76% of the network intrusions were due too weak or stolen passwords. Some of the other factors that have been realized was that 75% of the attacks are opportunistic and 19% of attacks are some form of espionage. There is also much evidence that many of these breaches could be tied to organized crime and gathering financial information. On a very basic level, just looking at the history of organized crime, money has always been in the center in one form or another. The money can be in the form of an exchange for a good or service, or it could be, knowing the financial information of someone for future business proposals or some other malicious intent. Recommendations - Tighter security on the networks. - Since some data breaches are done by resigned employees, instant account closing of all resources to...

Words: 344 - Pages: 2

Free Essay

Help

...encompass many components that focus on efficient and effective programs, providing services and benefits to the most vulnerable individuals in the state. One of Hawaii’s most profound agencies known in the State of Hawaii that is correlated with human services is “Helping Hands Hawaii.” Although there are many agencies that have different approaches, human services rely on agencies that are most cost-efficient yet effective. Interoperability plays a major role in the future of human services. It is the “ability of two or more systems to exchange information and to use the information that has been exchanged” (Schoech, 2010). The three possible models for approaching interoperability in the human services are Loosely Linked Network Model, Network Model, and Top-Down Model. Human services emphasize in the importance of interoperability, as agencies collaborate with the same identified need to help others. Helping Hands Helping Hands Hawai’i manages numerous programs that benefit the people of Hawaii; this includes Behavioral Health Programs, Ready to Learn, Emergency Assistance Program and many more. Their mission is to support the community by improving the quality of people’s lives through the delivery of goods and services to those who are in need. For families and individuals, Helping Hands Hawaii is a new quality of life that overcomes the obstacles that block the way of meeting their full potential. This non-profit organization revenue from State agencies, grants...

Words: 869 - Pages: 4

Premium Essay

Aljazeera

...Content: The page complete and functioning very well, all the aliments of the page are ready to be used as soon as entering the website, the content is included in each link in the page. The title of the page is Aljazeera and the logo of the network is at the left side of the word, it's noticeable because it's written in a big font size and a special font style. A big network like Aljazeera need for sure to be updated frequently add on the argent news happening must be included in the website, the website has allot of parts and each part talks about a special kind of news for example the wither, sports, and watch live, those areas are a sensitive information's and must be updated as soon as an information is received to the network responsible employees, looking at the website Aljazeera didn’t miss that point at all, the information's are being updated frequently. At first the audience of Aljazeera was just Arab world, but at November 2006 Aljazeera English has been lunched the target audience after that is all the world with its deferent Taste and backgrounds Aljazeera nowadays gives almost all the news that each one around the world would need, it's almost nothing there you are not interested in. Aljazeera has no any obvious bias or slant to the information it has been always with the truth and human rights and it's taking it as a lead to its perfection, actually Aljazeera has an awards proofing that, and it's giving both sides Opinions which is fair enough. There are allot...

Words: 357 - Pages: 2

Premium Essay

Microsoft Server 1 Lab 6.1

...available in the system stability report selection? Software unitalls, application failure, hardware failure, windows and miscellaneous 7.Waht logs are available by default? Application,security,setup,system and forward event 8.What is most recent Event id logged to the Application log? Application,security,setup,system,forward events 9.What is the most recent Event ID logged to security log? 4634 10.What is most recent event id logged to setup log? 1610 11. What is most recent event id logged to system log? 7036 12.How many events are displayed in this custom view? 52 13.What is the keyboard shortcut to begin a network capture? F5 14.What appears in the Capture Filter pane? 15.Does anything appear in the Network Conversations pane? no 16.Does anything appear in the Network Conversations pane? All traffic,my traffic, 17.Where will WSUS downloads be stored by default? (c:/wsus) 18.What database does WSUS use by Default? MSDE 19.What types of updates does WSUS download by default? Automatic updates 20.What nodes are available under the W2K40 node?...

Words: 260 - Pages: 2

Free Essay

Syllabus

...it is both my hope and expectation that you will complete this course with an understanding of network design and management.For me networking started with me completing my Bachelor of Science in Electronic Engineering Technology in 1988. I then went on to complete a Master of Science in Computer Science, from Illinois Institute of Technology in 1992.  In 2011, I completed my doctoral studies at Georgia State University. From about 1988 – Present, I have worked for various Telecommunication companies, such as, AT&T Bell Labs, Tellabs, Nortel, and Cisco Systems.  My most enjoyable position was designing fiber optic networks for many of the top tier ISP/Service Providers today.I love to play tennis; I wish that I could play tennis for a living. I play in KSWISS Men’s Single League, T2 Tennis, Peach Tennis and tournaments. I also love running at least three times a week. The other activities I enjoy, working on my computer, playing with my dog and enjoying the beautiful outdoors.If you every need to contact me, please give me a call or email me. We can setup a time that is convenient.  Please remember, I am here to help you not only complete the course, but also to be sure that you can master the concepts and skills that the course offers.  My contact information is listed in the syllabus. Thanks, Dr. Wright |   | Print This Page |   | | Course Text |   | Top-Down Network Design 3rd Edition by Priscilla Oppenheimer © 2011 Cisco Press | First Time Using VitalSource...

Words: 3071 - Pages: 13