Assignment

HERBEWS 13:5

Keep your lives free from the love of money and be content with what you have, because God has said, "Never will I leave you; never will I forsake you."

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this verse is trying to say that you must not live with too much love of money, bacause to much love for money may lead you to do sins and be contented of what you only have, just love and obey god because he loves you so much and he will never leave and forsaken you.

fiber optic

Singlemode fiber optic- A fiber with a small core, only a few times the wavelength of light transmitted, that only allows one mode of light to propagate. Commonly used with laser sources for high speed, long distance links.


Multimode fiber optic- In optic fiber technology, multimode fiber is optical fiber that is designed to carry multiple light rays or modes concurrently, each at a slightly different reflection angle within the optical fiber core. Multimode fiber transmission is used for relatively short distances because the modes tend to disperse over longer lengths (this is called modal dispersion) . For longer distances, single mode fiber (sometimes called monomode) fiber is used

assignment

6. Get a few rolls of Velcro This may sound silly, but recently I have become a fan of using the fabric adhesive strips for cable management in lieu of wire ties. A full-scale replacement of all existing strain relief applications isn't necessary, but I have started using the loop-and-hook fabric for all situations and am very satisfied with it. Unfortunately, the stuff is quite expensive for a large roll, so stock up while you can. Velcro is a brand name of fabric hook-and-loop fasteners. The term Velcro is a registered trademark in most countries. Generic terminology for these fasteners includes "hook and loop", "burr" and "touch" fastener he/she prefer to use the hook and touch fabric because it is what he/she started using and it is satisfying to use because Hook and loop fasteners consist of two layers: a "hook" side, which is a piece of fabric covered with tiny plastic hooks, and a "loop" side, which is covered with even smaller and "hairier" plastic loops. There are many variations to this which include hooks on both sides, for example. When the two sides are pressed together, the hooks catch in the loops and hold the pieces together. When the layers are separated, the strips make a characteristic sound. The strength of the hook and loop bond depends on how well the hooks are embedded in the loops and the nature of the force pulling it apart. Force pushing the pieces together engages more hooks and loops. If hooks and loops are used to bond two rigid surfaces, e.g. auto body panels and frame, the bond is particularly strong because any force pulling the pieces apart is spread evenly across all hooks. Vibration can also cause rigid pieces to improve their bond. When one or both of the pieces are flexible, e.g. a pocket flap, the pieces can be pulled apart with a peeling action which applies the force to relatively few hooks at a time. If a flexible piece is pulled parallel to the plane of the fastener surface the force is spread evenly as with very rigid pieces. Although the name fabric adhesive encompasses a variety of products that provide temporary or permanent ways to attach fabric without sewing. Some of them are available simply as applications, while others are sold already applied to a fabric or material, with the adhesive being activated while incorporating that material into a project. 5. Purchase evaluation equipment or software If you have any concept projects or other long-term directions, investing in some tools, software, or hardware to facilitate your projects can be a wise decision. Such a purchase may be to bring your group's competency up in a certain area or simply to perform a customized proof of concept for the solution you're considering. Just be sure you don't trap yourself in under funding your larger projects by slipping these types of purchases into the mix. If a project is pressed upon you, and there are tools or software titles needed to succeed, the project should fund those requests.

Venture funding works like gears. A typical startup goes through several rounds of funding, and at each round you want to take just enough money to reach the speed where you can shift into the next gear. Few startups get it quite right. Many are underfunded. A few are overfunded, which is like trying to start driving in third gear. I think it would help founders to understand funding better—not just the mechanics of it, but what investors are thinking. I was surprised recently when I realized that all the worst problems we faced in our startup were due not to competitors, but investors. Dealing with competitors was easy by comparison. I don't mean to suggest that our investors were nothing but a drag on us. They were helpful in negotiating deals, for example. I mean more that conflicts with investors are particularly nasty. Competitors punch you in the jaw, but investors have you by the balls. Apparently our situation was not unusual. And if trouble with investors is one of the biggest threats to a startup, managing them is one of the most important skills founders need to learn. Let's start by talking about the five sources of startup funding. Then we'll trace the life of a hypothetical (very fortunate) startup as it shifts gears through successive rounds.

assignment3

7. Ability to manage projects - The cornerstone of any IT manager’s job is that the organization can deliver project initiatives in a predictable and cost-effective manner. Effective project management discipline must be a key part of any manager who expects to succeed. Regardless of your career direction, strong project management skills will enhance your opportunities.

ANS:
IT professionals must have this kind of ability on how they can manage their project in delivering it in a predictable and cost-effective manner. Like in making a programming or designing project it must be predicted that it will be well done successfully and all your cost or effort exerts in making the project must be sure that it is effective. Because it is good to see that your work is successfully done so that all your hard work, time spends and the cost of it will not be for nothing. In order to have this ability it takes a lot of determination, dedication, love, hard work and discipline for the IT professionals, because as we all know that the discipline or those entire attitudes is the key for us to achieve our goals and to be successful in our profession. With this ability to manage a project, is a skill that must be practice, must be develop, must be upgraded and must be stronger as time goes by, to be able to have broad knowledge and stronger ability on how to manage project professionally, with this ability to manage project you are now qualified in an organization to work and have the advantage to easily grab a job. Because of this ability will give the IT professionals to have great opportunities to be in demand in an organization. And not only that, if your in the job you will be putted in a high position and you can choose whether you like your job or not, so you can make sure that you earn a good salary income. So for all those IT professionals out there, what is your waiting for?? Practice these ability to manage projects to be successful!

Assignment 2

A punch down tool, also called a punchdown tool or a Krone tool (after wiring systems manufacturer ADC krone), is a small screw-driver sized tool used for connecting wiring to a punch down block[1]. The tool consists of a handle with a spring mechanism inside and at the tip a small square piece of metal with a square hole in it. To use the punch down tool, a wire is inserted in between the two metal blades on a punch down block and the punch down tool is pressed down on top of the wire and the two blades on the punch down block. This requires a bit of pressure until with an audible snap the wire is stripped and contact made as it is pushed down between the two punch down block blades.
66 and 110 blocks require different types of blades.

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A 110 block is a type of punch block used to connect sets of wires in a structured cabling system. 110 is also used to describe a type of Insulation-displacement connection used to terminate twisted-pair cables which uses the same punchdown tool as the 110 block.

Front view Back view

PATCH PANEL -A patch panel is a mounted hardware unit containing an assembly of port locations in a communications or other electronic or electrical system. In a network, a patch panel serves as a sort of static switchboard, using cables to interconnect computers within the area of a local area network (LAN) and to the outside for connection to the Internet or other wide area network (WAN). A patch panel uses a sort of jumper cable called a patch cord to create each interconnection.

Assignment

CSMA/CD

Short for Carrier Sense Multiple Access / Collision Detection, a set of rules determining how network devices respond when two devices attempt to use a data channel simultaneously (called a collision). Standard Ethernet networks use CSMA/CD to physically monitor the traffic on the line at participating stations. If no transmission is taking place at the time, the particular station can transmit. If two stations attempt to transmit simultaneously, this causes a collision, which is detected by all participating stations. After a random time interval, the stations that collided attempt to transmit again. If another collision occurs, the time intervals from which the random waiting time is selected are increased step by step. This is known as exponential back off.
CSMA/CD is a type of contention protocol. Networks using the CSMA/CD procedure are simple to implement but do not have deterministic transmission characteristics. The CSMA/CD method is internationally standardized in IEEE 802.3 and ISO 8802.3.

Difference of CSMA/CA and CSMA/CD

CSMA/CA is a network contention protocol that listens to a network in order to avoid collisions, unlike CSMA/CD that deals with network transmissions once collisions have been detected.

IP address

An identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP route messages based on the IP address of the protocol destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255. For example, 1.160.10.240 could be an IP address.
Within an isolated network, you can assign IP addresses at random as long as each one is unique. However, connecting a private network to the Internet requires using registered IP addresses (called Internet addresses) to avoid duplicates.

MAC address

Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer.
On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

Difference of client and server

Client devices normally request and receive information over the network. Mobile computers and most desktop PCs operate as clients. A server device hosts files, databases, Web sites, or other applications. Server devices often feature higher-powered processors, more memory, and larger disk drives than clients.