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Networking Tutorial for Beginners-Networking Certifications

Networking Tutorial for Beginners 

This blog post providing information about networking certification and the list of best networking courses from top computer networking companies,etc.

If anyone who would like to do networking course.
As a beginner may be some of them have no much ideas that which network course they need to do first or not or best certification course in networking.here I would like to some information about top networking companies such as cisco,microsoft,vMware,Red hat,etc and the top networking certifications courses that you can do what are the job roles that you can handle comfortably.

Video: Best Networking Courses & Networking Certifications

If you have more networking certifications that will be helpful for you.Today it is easy to get the networking related job even though you have only one or two certifications.But the problem is that companies need the person who has more networking certifications because that person has the ability to perform different job roles by this way companies can reduce the employees.You should very careful about your job.

Suppose if the company doesn't like you then sack you without any prior notice.Because they worry that, you know the configurations, passwords etc about that company so there is the possibility of misuse all and chance to make networks problems to the staff who coming instead of you.

Note: The networking job positions and networking salary varies according to the certifications, work experience, country etc.Below I can provide a general info about all these.

Best Networking Courses & Networking Certifications

1, CompTIA A+

Firstly you can start with CompTIA A+ that will be good for you.It can provide a solid foundation for computer hardware and basic networking.If you have the certification of CompTIA A+, Then only Some companies in certain countries allow you to touch the machines as a networking engineer to trouble shoot it. 
Job Roles you can do network installer, network technician, IT helpdesk technician and cable installer, etc.Salary starts with $28,000 in the USA.          
    

2, CCNA Routing and Switching.

Secondly, It's good to learn ccna routing and switching.It can provide good knowledge about networking.In this, you are mainly studying about the configuration of the router and switch also t shoot.By the completion of this, you will be able to configure networks in small to medium-sized enterprizes.
Before CCNA you should do CCENT as an entry to Cisco networking career.But students in India doing CCENT and CCNA together and they attend the composite examination of it and get certify CCNA Routing and switching.

Job Roles you can do network administrator, network technician, etc.salary starts with $53,514

3, MCSE

While doing CCNA you can do Microsoft certifications.If you are passing few papers in this you will get MCSA.If you are passing full papers then you will get MCSE.In it mainly you are studying about client server configuration.By this you can configure DC (Domain controller), You can configure users etc.
Job roles-Systems Administrator, Information Technology (IT) Manager, Desktop Engineer, etc.Salary from  $44,429 

4, Redhat

If you are doing red hat, then you can configure Linux servers in a company.Instead of Microsoft servers, some companies using Linux servers.And somewhere using both Linux and Microsoft.
Jobs related with-Linux System Administrator, Linux Systems, etc. Engineer.Salary from $90,000.

5, CCNA Security

After CCNA routing and switching, if you like then you can do CCNA security.

Job roles, Network & Security Engineer, Network Security Analyst, Network Specialist, etc.Salary from $51,522

6, CCNA Collaboration

If you need to configure ip phones, videos and call are then you should do this course.
job positions voice engineer, salary from $30,639

7, CCNP Routing and switching

If you are interested in routing and switching then after ccna routing and switching you can do this course.
job roles, Network Administrator, Network Engineer. Network Administrator, etc salary from  $97,037

8, Microsoft Exchange Server

It is the study about configure mail server in an enterprize.means you need to configure mail with the domain of your company and do a lot of settings according to with the requirement of the company.
Job positions-MS Exchange Server Admin Professionals, Exchange Administrator, etc Salary $70715

9,vMware

It is the study about virtualization, Now a day virtualization is very important.I would like to give the general idea about it.In this, you will learn to configure creating virtual machines, Installing windows server, Linux server machines into one physical server etc.

VMware administrators, Salary from  $85826

Free Online-Cisco Certifications-CCNP Training-Class 01

CCNP Routing and Switching 300-101-Full Course Part 001

After the successful completion of CCNA routing and switching certification, you can start CCNP certifications.It is important to pass CCNA routing and switching, then only you can attend CCNP.You can do different levels of CCNP certification with your desire.

List of Cisco Professional level Certifications.

CCNP Routing and Switching
CCNP Cloud
CCNP Collaboration
CCNP Data Center
CCNP Routing and Switching
CCNP Security
CCNP Service Provider
CCNP Wireless
CCDP

Suppose, If you would like to do CCNP security, Then initially you need to certify CCNA RS and CCNA Security.Means that  CCNA RS is necessary for higher certifications of Cisco.
There are mainly three papers we need to study to get certify CCNP routing and switching,ccnp certification cost that are given below.

CCNP Certification Cost

1, CCNP Routing

Exam Code is ROUTE 300-101, Recommended Training is Implementing Cisco IP Routing (ROUTE).Exam cost is about $300 USD and the   Duration of this exam is about 120 minutes and there may have 45-65 questions.

2,CCNP Switching

Exam code is SWITCH 300-115 
Exam cost is about $300 USD
Duration of this exam is about 120 minutes and there may have 30-40 questions.

3, CCNP T Shoot

Exam Code is TSHOOT 300-135  Troubleshooting and Maintaining Cisco IP Networks (TSHOOT)
 Exam cost is about $300 USD Duration of this examination is about 120 minutes and there may have 15-25 questions.

In these three papers, we can do firstly CCNP Routing or CCNP Switching with our convenience. But we can do CCNP Shoot only after the completion of first two.because we need knowledge about routing and switching.

If we are spending three hrs. per day, then we can finish CCNP route with thirty working days. 

These certifications have validity up to three years.
visit
http://www.cisco.com for updates.

Cisco Recertification 

It is very important to take care of certification and recertification.I would like to talk about routing and switching track, suppose if you write ccna routing and switching then its validity will finish when it become three years.you can extend the validity by recertifying ccna or write any paper of ccnp to extend the validity of ccna and ccnp.

To extend the validity of CCNP you can write any papers of CCNP example CCNP Route or CCNP Switch to extend the validity of CCNA and CCNP.

Or You can write CCIE Routing and Switching theory paper to extend the validity of CCNP Routing and Switching Track.

What will happen if the validity of Cisco certification expired?
If your certification expired before the recertification then your certification will be there but the thing is that you can’t use it for recertifying anything you need to start from the beginning. So should care about the validity of Certifications.

If you write there three papers such as CCNP Route, CCNP Switch And CCNP Shoot then only you will get the certificate of CCNP certification like CCNA certificate you got.

The validity of CCIE certification is two years.

Before starting CCNP Route 3000-101 it's good to refresh our knowledge regarding networking Networking Fundamentals

Computer Networking Requirements

1, Clients And Servers.

We need client machines according to users in our enterprise.
Here may have public servers and private servers(for private access)example webserver, email servers.

2, Routers

 We routers to establish routing between different networks.

3, Switches

In CCNP we are dealing with manageable switches
There are mainly two types of switches that are :
a, Layer 2 switch: Only have switching functions.
b, Layer 3 switch: It will support switching functions as well as routing functions.These switches are manageable.Layer three switches also known as multi-layer switches. 
In CCNP class Initially, we are dealing only with Layer two switches.

4, Firewall 

ASA (Cisco Adaptive Security Appliance).It's a network security device.simply we can say firewall.In CCNA Security and CCNP Security, we can deal with ASA.
Previously used Cisco PIX (Private Internet Exchange) Firewall for network security.Now it's not in use.

5, Access Points(Wireless)

In CCNA we mainly studied about SOHO (Small office home office) means in an enterprise where have the number of staff about  25.In CCNP we are dealing with the cooperative network.

6, Cables And Connectors

 We need cables and connectors such as Coaxial, UTP, STP, OFC.

7, Protocols
  Eigrp, OSPF etc..















.

free ccna training-online-networking video-and text class-1

Free ccna training-online class 001

Now you can start to learn free ccna training online.The ccna course online tutorial free classes are providing the ccna topics in a simple way.It's good to make the note for each class and need to understand it thoroughly because these are basics of networking.

Cisco Certification Path 

     

Cisco is an American multinational technology company, Cisco offers five levels of network certification such as;
1, Entry
2, Associate
3, Professional
4, Expert
5, Architect    
  

1, Cisco Entry Level Certification.

Here we can do CCENT or CCT to get Cisco entry level certifications.Both CCENT and CCT certifications serve as starting points for people those who are interested to beginning their a career as a networking professional.Mean, these networking certification provides an entry to networking field.

CCENT

The full form of CCENT is CCENT Cisco Certified Entry Networking Technician.This certification validates your knowledge to install, operate and troubleshoot the networks in a small enterprise branch network and configure basic network security.

The Required Exam form CCENT certification is 100-105 ICND1.
Recommended Training is Interconnecting Cisco Networking Devices Part 1 (ICND1).The duration of exam is about 90 Minutes there may have (45-55 questions).The exam cost of CCENT  is about $125 USD and this certification is valid for 3 years.To write Cisco certifications you need contact and Register Pearson VUE centers near to you.


Video:Play the video below to view cisco certification path

2, Cisco Associate Level Certifications.

Here we can do associate level certification like CCNA.The full form of CCNA is Cisco Certified Network Associate.It is really foundation level of Cisco networking certification really, successful career in networking starts with CCNA.CCNA Routing and Switching validates the knowledge to install, configure, operate, and troubleshoot networks in small to medium-sized Enterprises.

list of some, Cisco Associate level Certifications.

  CCDA
  CCNA Routing and Switching 
  CCNA Security  
  CCNA Service Provider
  CCNA Wireless
  CCNA Cloud 
  CCNA Collaboration 
  CCNA Data Center  
  CCNA Industrial

Note:(It is necessary to pass CCNA Routing & Switching then only you can attend other Cisco certifications like CCNA Wireless, CCNP ...).

 How To Get Certify Cisco CCNA Routing and Switching?
We can certify CCNA Routing and Switching certifications by two different Tracks. You can choose Track 1 or Track 2 to Get Certify CCNA RW.

Certify CCNA RW by Track 1 Method

Firstly, you need to write Exam(s) 100-105 ICND1.
The Recommended Training for this exam is   (Interconnecting Cisco Networking Devices Part 1).(Exam cost of 100-105 ICND1 is about $165 USD).Secondly, we need to write the exam 200-105 ICND2- Interconnecting Cisco Networking Devices Part 2 (ICND2) (exam cost of 200-105 ICND2 is about $165 USD)

Or

Certify CCNA RW by Track 2 Method

Here you can write the Exam: 200-125 CCNA
Recommended Training is- Interconnecting Cisco Networking Devices: Accelerated (CCNAX) 3.0
It’s a composite examination means that you only need to write 200-125 CCNA and become CCNA RW certified.
Duration 90 Minutes (50-60 questions).
Exam cost of 200-125 is about $325 USD.

3, Cisco Professional Level certifications

In this, you can certify CCNP Routing And Switching, CCNP Security etc.

4, Expert Level Certifications

 In this, you can certify CCIE Routing And Switching

5, Architect

Here you can do certifications at architect level
We are going to study ccent+ccna, You don't need to learn CCET and CCNA separately.We can do it together.

 CCENT: Cisco Certified Entry Networking Technician,
 CCNA: Cisco Certified Network Associate

Initially, we are going to learn about some Basic Networking Topics.

Basic computer networking 

What is Networking?

Networking is an interconnection between two or more electronic devices to share data and then it from a network. eg: Computer Network, Mobile Network.

Different Types of networks

Networks are categorized by geographical size such as,

LAN: Local Area Network (eg: Network in an office building)

PAN: Personal Area Network (eg: Bluetooth, wifi connectivity in short range)

CAN: Campus Area Network.It is the connection between the different LANs on a campus.

MAN: Metropolitan Area Network.Usually the network connection with in the limit of 50 km.(eg: Main branch of a bank connected with its sub branches)

WAN: Wide Area Network.It is the connection between different types of networks such as LAN, MAN etc over countries.ex: The Internet

red hat training-free-Linux Tutorial for Beginners-001

A Red Hat Certified Engineer (RHCE) is like MCSE certification of Microsoft server 2012.We are going to learn about the features of Red Hat Enterprise Linux (RHEL) like features of Microsoft server 2012.Linux is derived from UNIX and UNIX launched in 1969.

unix structure diagram

Unix OS Structure

Kernel -It is the part interact with Hardware

Shell-It is the part where users can interact with kernel (Users working here)

First created kernel faced some problems in the USA.So they open sourced the kernel.Microsoft, IBM etc modified the kernel to Microsoft Unix, IBM UNIX etc.

In 1991 Mr. Linus Torvalds modified the Unix kernel to Linux kernel for PC.It had the only kernel, no shell.So couldn't install the os.

Free Software Foundation

It was a project for creating a shell for Linux kernel and the project name was GNU.The name of the first Linux operating system is GNU.

(Free software foundation shell+Linux kernel=GNU Linux)

there are plenty of companies modifies the shell of GNU Linux and resell it.Redhat is Linux Distributors.

Is there have applications in GNU Linux such as in Windows XP?

By default, there are plenty of applications in GNU Linux. we can download it from the internet.

Suppose if we are using the application named wine then we can run windows applications GNU Linux machine.

Free-vMware training videos-and notes-myitfriends-001

By doing vMware we can save money, racks, spaces etc.

What is Hypervisor?

Instead of an operating system, we can load a thin layer of software on hardware is known as a hypervisor.It's a generic word.vMware called it as vmvisor and Microsoft called it Hyper V.

What is Bare metal Virtualization ?

On the top of the hypervisor, we can create virtualized computers.It maps the processor, RAM, hard disk, NIC etc of a real machine to here.So we are calling it virtual processor, virtual RAM, Virtual HDD, Virtual NIC etc.

Likewise, we can create multiple virtual machines.such as vm1,vm2,vm3 etc depends up on the power of the underlying hardware.

In addition to that, we can install operating systems such as windows 8, windows server 2012 etc.And these operating systems are then known as guest operating system.Because VM is the host and operating system are the guest.These are the common concept of a recommended virtualization at the professional environment.

We can create machines in that we can add multiple virtual machines.In a data center, there will be a collection of physical machines and lot of virtual machines on it.And these are working in collaboration.vMvisor is introduced by the company vMware.It's a software component of hypervisor for virtualization.

What is Hosted Virtualization ?

There is another virtualization method.In that we can use normal standard hardware(Laptop, Pc) On that  we can just install the os (windows 7, windows 8 etc..)In that, we can install hypervisor just as a service.Moreover, on top of the hypervisor, we can add VMS and able to install the guest os on it.For this purpose, we can use a software known as vMware workstation.You can download and install to your laptop from vMware official website.

Centralized Management

Suppose if a physical machined is crashed, then what will happen the VMS on it?
We can move VMS to one physical machine to another automatically by doing features such as Disaster Recovery, Fault tolerance etc.We will learn about it on upcoming classes.

ccna security training-new ccna security 210-260-free-02

What will happen if we do not configure these management protocols not properly?We are using ssh or telnet to enter in cmd line.In this which one is more secure?

Telnet is not secure.it has been using before TCP/IP comes.Suppose it we are configuring a router using telnet in a system, that’s easily assessable for a hacker.So we can't use telnet in a production environment network.We are using SSH(secure shell host) at production network.SSH is encrypted all the data that we

are entering and send it to other devices as an encrypted format.Decrypting this data while configuring the router is difficult to a hacker.So clearly we can say SSH is more secure than Telnet.

HTTP and https which one is secure?

Simply we can say Hypertext Transfer Protocol Secure (HTTPS) is secure than Hyper Text Transfer Protocol. Because all the things are in HTTPS is in an encrypted format.So if you are configuring a router with ccp (Cisco Configuration Professional) then using HTTPS is more secure.

How HTTPS works?

Suppose if are browsing Facebook, Gmail etc then all the URL comes with HTTPS.if our systems date and time are wrong then that web site is accessible to us or not?No, the websites are not accessable to us because their servers provide certificates to our machine with date and time. if that miss match with our machine then we can't access their websites.

2,Control Plane (control Function)

The hardware function of a router which is used to router discovery and inventory known as a control function.router discovery means to find out the neighbor routers and networks.inventory is for monitoring.hardware function is directly involved in a hardware.router CPU is involved in this function.
Routing protocols such as rip,eigrp .keepalives signals are working in the controle plane.

Keep alive

It is a signal used to check the status of a router interfaces up or down.the default time for keep alive is 10 seconds.example if we are configuring a router interface such as fa0/0 with IP address and give the cmd # show ip int brief, that time the cable may not be connected to that interface.Even though for 10 seconds that interface will show that protocol up status up after 10 sec keep alive check the interface then it will go down.If we need to know immediately that the interface is up or down very quickly after ip configured then give the command #nokeepalive.keepalive checks the interface status all the time continuously.

What are the threats in control plane if not configured it properly?

Consider we have two routers in our network and we configured eigrp in it.Then an intruder who is trying to connect and enter our networks may use the Bogus router (fake router).he is not an authorized user. then his router table entries will reach out and he becomes our neighbor.his eigrp will work faster than us.with in seconds he will get all the network information of that enterprise.By this way, he will get next hope and then he can access the networks.
To avoid this we should configure the authentication settings properly.means routing protocols authentication for rip,eigrp, OSPF like anything.We should authenticate our routing protocols for security.

Ping Of Death (POD)

It is the another threat in control plane.ICMP protocol is using for the ping.Its default size is 32 bytes.Ping of death means a hacker send continuous ping packets to our hardware in the bigger size.Due to the continuous ping packets and its Biggers size, our network will get hang. there is a chance of down the network.This is known as the ping of death.
Solution to prevent ping of death attack ie enable Control Plane Policy (CoPP) in the router.In this, we can set the packet size to allow and block.

ccna security training-free videos and notes-myitfriends-01

CCNA Security exam code and CCNA Security exam cost

CCNA security is one of the specialization certification for network security from Cisco.

To certify CCNA Security you should attend the exam code  210-260 IINS.And the  Recommended Training is Implementing Cisco Network Security (IINS).
The Exam Duration is about 90 minutes, and there may have about (60-70 questions).ccna security exam cost is $250.

To attend and get CCNA Security Certification you should have any valid Cisco CCENT, CCNA Routing, and Switching, or any CCIE certification.After ccna security, you can prepare for higher certifications in security such as CCNP Security and CCIE Security.

To write Cisco certifications you need contact and Register Pearson VUE centers near to you.

Benefits of CCNA Security Certification

Become Security Specialist: if you are certified ccna routing and switching then at an enterprise you will know as the data engineer.Moreover, if you are a certified engineer of CCNA Security Then you will know as a security specialist(Security Engineer). 

If you are a data engineer then you need to configure the protocols in router and switch configuration and establishing the network.But if you are security engineer then it is your responsibility to protect our network from the threat.Means our duty is to protect our network from outsiders to enter our network.Due to the mistakes from our side, others get hints and can access our network.

ex: somebody writes their pin number at top of ATM cards. It is easy to access others if they get this card.Likewise, In our network, we may put vulnerabilities by mistakes. It very helpful to others to make problems.

As a network specialist, it's our responsibility to protect our network from this kind of vulnerabilities (Hacking)in ccna security, we are mainly studying about the mistakes in our network and blocks its access to outsiders.

Network Protection 

 NFP(Network Foundation Protection) in this we will study network security.

In Network Foundation Protection, the full network infrastructure is divided into three.

1,Management Plane(Management function)
2,Control Plane(Control function)
3,Data Plane(Data function)

1, Management Plane

To configure the devices like router, switch, firewall we can connect it by putty or terra term or anything like that, and we access it by using protocols such as telnet or ssh. the functions which allow this kind of management protocols to configure router is known as management plane.
Example:ssh,putty,http,https,syslog.

We can configure Cisco routers by CMD line or we can use GUI (graphical user interface) configuration tool for configuring Cisco IOS routers such as security device manager (SDM) and Cisco Configuration Professional (CCP).Now using CCP commonly for GUI configuration.GUI using web page for configurations so it using protocols such as HTTP or https.

While we configure through command line we can see messages like configuring through the console.It is known as syslog.
Suppose if we are configuring anything in the router that will log it.We can create a centralized server for syslog management.Suppose if are configuring through Telnet then the person who using console get messages that some changes happened through Telnet.
We are using syslog messages and SNMP Protocol for the management functions.

SNMP: Simple Network Management, It’s a protocol using in network monitoring software.

Network Monitoring Softwares

1, PRTG Network Monitor.

It's an open sourced software you can download it from the Internet.Installing this on a machine you can monitor the devices such as router, switch, firewall in that network.This software sending SNMP to devices periodically and collects pieces of information to monitor it.
Suppose if the interface of the router is down then this software will inform it to the network administrator.If we are buying higher features of this software then it will inform network status changes by email and call.

2, SolarWinds:

It's an another monitoring tool using widely.It's expensive.Administrators say that it gives accurate pieces of information by email, message, and call.