Types of networks

 Public network: a public network is defined as a network that can be used by anyone and not as networks that are configured with a personal password. It is a network of interconnected computers, capable of sharing information and allowing users to communicate regardless of their geographical location.

Private network: a private network would be defined as a network that can be used only by some people and that is configured with a personal password.

Personal Area Network (PAN) : (Personal Area Network) is a computer network used for communication between computer devices (phones including personal digital assistants) near a person. The devices may or may not belong to the person in question. The range of a PAN is typically a few meters. PANs can be used for communication between their personal devices (intrapersonal communication), or to connect to a high-level network and the Internet (an up link). Personal area networks can be wired to computer buses such as USB and FireWire. A wireless personal area network (WPAN) can also be made possible with network technologies such asIrDA and Bluetooth .

Local Area Network (LAN) : a network that is limited to a relatively small special area such as a room, a single building, a ship, or an airplane. Local area networks are sometimes called a single location network. Note: For administrative purposes, large LANs are generally divided into smaller logical segments called workgroups . A Workgroups is a group of computers that share a common set of resources within a LAN.

Virtual local area network (VLAN) : A Virtual LAN or commonly known as VLAN , is a group of computers, with a common set of resources to share and requirements, that communicate as if they were attached to a logical division of networks of computers in which all nodes can reach each other by means of Broadcast in the data link layer, despite their different physical location. With this, computers can be logically grouped so that the location of the network is no longer so associated and restricted to the physical location of each computer, as is the case with a LAN, also providing security, flexibility and resource savings. To achieve this, the IEEE 802.1Q specification has been established as a standard designed to address the problem of how to separate physically very long networks into small parts, as well as provide a high level of security between internal network segments while having the freedom to manage them regardless of their physical location

Campus Area Network (CAN) : It is derived to a network that connects two or more LANs which must be connected in a specific geographic area such as a University Campus , an Industrial Complex or a Military Base .

Metropolitan Area Network (MAN) : A network that connects two or more local area networks together but does not extend beyond the immediate city limits, or the Metropolitan Area . Routers ( routers ) multiple switches ( Switch ) and the hubs are connected to create a MAN entry level network technician jobs.

Wide Area Network (WAN) : It is a data communications network that covers a relatively wide geographical area and often uses the transmission facilities provided by common carriers, such as telephone companies. The WAN Technologies generally operate in the lower three layers of the OSI reference model : the physical layer , the data link layer and the network layer .

Storage area network (SAN) : A network designed to connect servers, arrays (arrays) disc and supporting libraries. Mainly, it is based on fiber or iSCSI technology. Its function is to quickly, safely and reliably connect the various storage elements that make it up.

Irregular network : It is a system of cables and buses that are connected through a Modem , and that results in the connection of one or more computers. This network is similar to the mixed one, only it does not follow the parameters presented in it. Many of these cases are widely used in most networks.

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 Example of The 6 Thought Hats

This case study focuses on a business decision.

The hacienda is a sugar mill that has offices and a production plant in a rural area of ??the department. As part of the strategy for the new year, the company is considering the possibility of moving the offices to the urban area, in an office cluster considered as a free zone. Some data to keep in mind are:

There aren't many office spaces left in the city.

Most of the staff live in the city.

The possibility of paying rent or buying the offices is offered.

In the offices of the rural area you must pay for security service and food transportation.

In the offices of the urban area there are restaurants for employees and includes the security service.

So, let's see the positions of the different hats. We start with the blue hat.

Blue hat speaking :

The purpose of this session is to evaluate the pros and cons of moving offices from rural to urban areas. I understand that we are all familiar with the case, so the estimated most unrestricted time of this session will be one hour.

We will start with white, then red, black, yellow and green, but this will not necessarily be a strict order. Remember that the hat change will take place only when it is mentioned and it is also possible that one of you will be asked to put on a specific hat.

Let's try that the intervention time while wearing each hat is one minute, except for Red, which will be 30 seconds.

White hat speaking :

This decision comes down to thinking, what is most beneficial? Even with a free zone and everything, transportation savings and others, the costs of moving are 20% higher than the costs of having our offices in the rural area.

Yes, but it is something that has been demanded by collaborators. Travel times exceed 1 hour from the city limits to the office. Even two hours for those who live in the northern part of the city, who are 40% of employees. They are 4 hours of a day lost on a bus.

I add to what they mentioned, that 85% of employees are tired of ordering lunch only at that restaurant. This is demonstrated by the staff satisfaction survey.

Note that what they mention is reduced to weighing between the emotional benefit of the collaborator versus the cost involved in moving.

80% of employees live in the city and 20% in rural areas. There I leave that information.

If this decision is not made now, we will not be able to do it later. The spaces for companies in the city are reduced and they are all on the outskirts of the city, yes, not as far as we have.

Red hat speaking :

It makes me sad when executives from other companies come to those offices that we have. The ceiling of the meeting room is full of moisture.

If we have been in the same offices for 15 years, why are we going to change? Today we are the largest sugar mill in the south-west of the country. Would moving offices change at all? No gentlemen.

Food is disgusting, and for that alone I would be willing to lower my salary in order to eat something better every day.

I don't know, I feel like we have to buy that now. Have you seen how quickly those offices have filled up? It is clearly not a bargain, but please, if the other mills have done it, why not us?

With Willington as president that decision was never thought about. Dr. Isa has been in the position for 6 months and already wants to come to change our workplace.

For you it is very easy because you live in the rural area near the company, but remember that we are 20% of the employees who live in the urban area. I do not agree.

Black hat speaking :

Are we really going to hand over company security to another company?

The financial results for the year do not allow us to pay rent or acquire offices.

Surely a yellow is going to say that we send those who live in the city to work in the city and those from the rural area to continue working here. But if we already have communication problems like this, imagine how it would be divided.

There are no spaces in the city to build offices and eventually there will not be in the suburbs either.

Yellow hat speaking :

Happy, well-fed workers work better.

Business trends have changed the design of offices. Ours are still old. The new offices will facilitate cooperation and teamwork.

Why say that communication will be difficult if we divide the staff from rural and urban areas? For that there is "chat."

Yes, it is true that the financial results were not the best. But with the economic opening of the city, the forecasts cannot be better.

With offices in the city the distribution work would be easier.

The design of the offices will allow us to improve our travel times. To go from hiring to shopping at the Ingenio, it took me 20 minutes. On the other hand, in the new offices it would take me 30 seconds at most.

Exact! Also remember that although the cost of offices in the city is higher, we have not considered the savings from having a distribution center in the city, in addition to the decrease in workplace accidents, because these offices are designed to be safer.

Blue hat speaking again :

What yellow mentioned we had not taken into account. Can anyone give us the savings data if we have a distribution center in town? Also, by how much do we think work-related accidents would be reduced?

White hat speaking again :

Without paying much attention, I estimate that with a distribution center in the city we would reduce by 23% the cost of distributing in the city and in the departments that are to the north and west. I do not have the data on occupational accidents at this time.

Green hat speaking:

We could obtain energy savings by using bioclimatic alternatives such as skylights.

In the city there are more facilities to obtain agreements with restaurants, gyms and entertainment centers in the area red hat system administrator course.

What can we say compared to what Black mentioned?

We can outsource the food service within the mill, or build a restaurant to stop buying in the only restaurant in the rural area.

We could use solar energy in the new offices.

Blue hat closes the session by offering a summary of the aforementioned. Thus, attendees already have better points of view to make a consensual decision.

This is an example of a session with the 6 Thought Hats. Note that the type of interventions of each hat, as some are based on what was said by another hat, either to support it or debate it. Note that it is also possible that the order of the hats is altered if Azul considers it so, this when Yellow spoke of the benefits of having a distribution center in the city, it was necessary to use Blanco to be objective and define savings.

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 The 6 Hats Method is a methodology for group discussion and decision-making created by the famous Maltese psychologist Edward de Bono rhel administration certification. 

It is associated with lateral thinking and offers tools to think more effectively and in a thorough and cohesive way, proposing an observation of the different facets of a problem or situation from different points of view.

This method, endorsed by psychologists from all areas, is ideal to put into practice when faced with the need to make group decisions, since it avoids judging problems a priori, and uses empathy to avoid unnecessary confrontations.

This technique tries to reproduce the complex brain activity that is generated by the decision-making process and in which emotions, feelings, objective analysis, and evaluation of pros and cons participate, forcing lateral thinking and observation from different perspectives.

To carry it out, you just have to define the problem and let each member of the group put on (literally or symbolically) each of the 6 hats, giving their opinion of the problem following the rules that are associated with each color.

Each hat represents a way of dealing with the situation:

The white hat : objective and neutral thinking.

This hat forces us to face the evaluation of the problem from a factual point of view, analyzing the available data, past and current trends, and asking: What do I know? What do I need to find out? What information do I have to collect?

The red hat : emotions, intuition, hunches.

Wearing this hat requires setting aside objective thinking and focusing on gut instincts, emotions, and intuition. The questions to ask yourself under the influence of this hat are: How does this situation make me feel? What do I like about this situation? That I do not like it? The answers to these questions do not necessarily have to follow a logical reasoning, but rather seek to expose the visceral reaction of the participants to the situation.

The black hat : negative judgment.

When wearing this hat, the group members have to identify the current dangers of the situation, the barriers they face, the obstacles to overcome, the risks that it will last over time and any other characteristic of negative connotation. It is important to keep in mind that the intention of this hat is to present constructive criticism, as it highlights the weak points of the plan. Good questions to ask yourself at this point are: Why is this situation so bad? How serious are the risks? What are the main impediments to reaching a solution?

The yellow hat : positive judgment and benefits.

This hat helps to think positively, seeing from an optimistic point of view the benefits of an idea or situation, without falling into blind optimism but rather carrying out an analytical process that seeks to create arguments that justify the decision. "What is going well?" and "What are the short-term and long-term benefits of this situation?" are good questions to ask yourself when wearing the yellow hat

The green hat : creativity.

The green hat represents the moment in which creative solutions to a problem are developed, analyzing possibilities and alternatives and allowing free thought to flow without leaving room for criticism. The participant who wears the green hat has to ask himself what new ideas can arise from this situation? That I can contribute? Can I create something new with the tools that I have?

The blue hat : process control.

This is the hat that those who preside or moderate the meetings must wear, since it defines objectives and the route to achieve them, evaluates advantages and disadvantages, and helps the group stay focused on its work, asking what thought do we need to put into practice to face this situation in the most effective way possible? How to organize the process? How to plan a response strategy?

Red Hat Certified System Administrator

 An IT professional who has earned the Red Hat Certified System Administrator (RHCSA) is able to perform the necessary host administration capabilities in Red Hat Enterprise Linux environments. The credential is obtained after successfully passing the Red Hat Certified System Administrator (RHCSA) exam (EX200).

A system administrator with Red Hat ® Certified System Administrator (RHCSA) can perform the following tasks:

Understanding and using essential tools for manipulating files, directories, command line environments and documentation rhcsa certification price.

Operation of running systems, including booting at different levels of execution, identifying processes, starting and stopping the execution of virtual machines and controlling services.

Local storage configuration using partitions and logical volumes.

Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems.

Implementation, configuration and maintenance of systems, including software installation, updating and main services.

User and group management, including the use of centralized directory authentication.

Security management, including basic firewall and SELinux configuration.

Linux Essentials certification

 What is the Linux Essentials certification? What advantages does it have?

The mission of the Linux Professional Institute is to promote and certify essential capabilities in Linux and Open Source through the creation of highly comprehensive, high-quality exams that are independent of any distribution.

For this they offer two types of certifications:

Linux Essentials

LPIC

In this article we are going to focus on the Linux Essentials certification rhcsa training cost.

 Addressed to…

Those who want to start their journey in the world of Free Software.

 

Advantage

It will allow you to use and manage the Linux operating system.

You will have professional opportunities derived from knowing and handling Linux, due to the great boom in technologies related to massive data storage, cloud computing, cyber security, networks, programming and software development.

 Temary

Introduction to Linux

Open Source Applications and Licenses

Using Linux

Command Line Skills

Getting help

Working with Files and Directories

Archiving and Compression

Pipes, Redirection and REGEX

Basic Scripting

Understanding Computer Hardware

Managing Packages and Processes

Network Configuration

System and User Security

Red Hat Certified System Administrator

Red Hat Certified System Administrator

An IT professional who has earned the Red Hat Certified System Administrator (RHCSA) is able to perform the necessary host administration capabilities in Red Hat Enterprise Linux environments. The credential is obtained after successfully passing the Red Hat Certified System Administrator (RHCSA) exam (EX200).

A system administrator with Red Hat ® Certified System Administrator (RHCSA) can perform the following tasks:

Understanding and using essential tools for manipulating files, directories, command line environments and documentation.

Operation of running systems, including booting at different levels of execution, identifying processes, starting and stopping the execution of virtual machines and controlling services.

Local storage configuration using partitions and logical volumes.

Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems red hat certified system administrator rhcsa salary.

Implementation, configuration and maintenance of systems, including software installation, updating and main services.

User and group management, including the use of centralized directory authentication.

Security management, including basic firewall and SELinux configuration.

how to become a network technician salary

 We provide the following services:

Supervision of the deployment of mobile telecommunications networks (GSM, DCS, UMTS, WiMAX, LMDS)

Acquisition, sharing and transfer of sites

Supervision of fixed telecommunications and fiber optic networks

Incident management system in service networks

Prevention of occupational hazards

 

Our field teams work with applications for tablets or smartphones specially designed by Applus + (such as Moon or Movi +) that allow data to be recorded on the current state of work in the field. All information is analyzed and processed with the help of our data management and presentation tools, based on business intelligent (BI) solutions and adaptable to the client's needs, and the client has immediate online access to all relevant information about the client. draft how to become a network technician  salary  .

 

Our twenty years of experience in this field in different locations around the world make us the perfect partner for a wide range of telecommunications projects.

WHO IS IT AIMED AT

Technical supervision is an amount for any project related to the development of a new telecommunications network, or sections of a network, in which several parties participate and for which the client requires the involvement of third parties for the purposes of supervision and guarantee. and quality control. The technical supervision services provide the client with information on the current status of the works, as well as peace of mind regarding project deadlines, quality and budget.

 

This service is aimed at any company responsible for the operation of telecommunications infrastructures, for the start-up, development or improvement of networks, or for managing incidents in their networks. It can also be useful for construction companies and suppliers involved in the installation of telecommunications equipment.

ADVANTAGES AND BENEFITS

By using Applus + technical supervision services, our clients can:

Be assured that the project deadlines and schedule are met.

Reduce investment and development costs.

Adopt technical solutions and, at the same time, minimize investment.

Legalize sites.