Comptia
In this section you will find Network Certification overview-free resources, exam tutorials, Comptia a+ exam, cissp, cisco exams, microsoft certifications. I have given the general overview of the computer networking certifications. Having knowledge of these certifications, it will be very easy for the visitors to decide their certification of choice. Users will also know the prerequisites of this exam, course outline, level of knowledge, and their expertise after having certified.
You will also be able to learn these things while browsing this website communication tutorials, what is data communication, tech study guides, topologies, computer networking guide, what is data recovery, wireless communication, computer interview questions, network tutorials, microsoft exams, cisco exams online certifications and comptia tutorials.
Network+
Network+ exam by Comptia is designed specifically for the IT professional who have more than nine months experience in the computer network administration. The code of the Network+ exam is N10-003 and it was first introduced in 1997. Till the mid of May 2005, according to Comptia’s announcement, more than 150,000 were Network+ exam certified. Network+ is an entry level exam and it paves the way for the IT professionals in their quest for the more advance certifications like MCSE, CCNA, CCNP etc. There are not prerequisites for this certification. Comptia recommends that you must have the A+ certifications.
Network+ certification is well suited and designed for the network administrators. The topics covered in this exam are media and topologies, standards, protocols, network support and implementations. The Network+ certification shows the candidate’s knowledge of the basic networking fundamentals. Like other Comptia’s certifications, the Network+ certification will not be expired once it is achieved.
SECURTY+
Security+ certification is designed for the IT professionals who have 2 years of experience in the network or systems administration and having the main focus on the security. The code of this exam is SY0101 and it was introduced by Comptia in 2002. Security+ is an entry level test for the most advanced tests like ISC2, CISSP and the SANS. As well as it can also be used as the basis for the some Microsoft certifications. Security+ certification is well suited for the network and security administrators and professionals.
The common topics included in this exam are designing security for a network, security infrastructure, cryptography, authentication, access control, internal and external network attacks and the dealing with the company’s security.
Security+ certifications shows the candidates knowledge of these things and it prepares the candidate to such level that he/she competes with the security breaches and finds some good alternative ways that are helpful in reducing the cost of a security breach. Once this certification is achieved it will never expire just like the other certifications of Comptia.
Microsoft
MCSE
Microsoft Certified Systems Engineer (MCSE) is designed for the professionals who are some requirements of analyzing the business, designing, making infrastructure, and implementing the securities at certain levels. MCSE is based on the Microsoft Windows 2000 platform and Windows NT platform (though many of the NT exams have been obsolete now). The Windows 2003 server has been merged into the MCSE exam.
MCSE certification does not retire but the newer versions are released by the Microsoft after few years. So the candidate has to be upgraded himself/herself with these latest exams. There are no specific requirements for the MCSE certifications. Those candidates who have one year experience in managing a computer network, network or desktop operating systems, will be considered suitable for this exam. Job descriptions and roles including after achieving the MCSE are Systems engineer, Network Engineer, Network Consultant, and Systems Analyst.
There is a 7 exams pass requirement for this certification and the candidates how are holding the MCSE 2000, are required to give 2-upgrade exams. By passing these exams you can achieve Windows Server 2000 MCSE exam.
Cisco
CCNA
Cisco CCNA certification (Cisco Certified Network Associates) is an introductory level exam. The CCNA exam by Cisco systems was designed for the candidates who can install, configure and do administrator of the LAN or WAN networks. CCNA is a prerequisite for the some higher level certifications like CCNP and CCDP. The CCNA exam is valid for the three years. In 2003, Cisco has introduced the two paths of the CCNA exam (INTRO and ICND). Job role for the individuals who are CCNA certified are network administration, system administration and network consultant etc.
CCNP
CCNP (Cisco Certified Network Professional) exam is designed for the candidates who can install, configure and troubleshoot a LAN/WAN network of 100 to 500 computers. The CCNP certification has its prerequisites such as CCNP certification. The topics included in this certification are converged networks, security, VPN, quality of service and broadband technologies like VOIP, DSL, Cable net etc. There is a four, three and two exams path to the CCNP. The CCNP exam is valid for the three years. The job role for a CCNP certified are Network administration, LAN administration, WAN administrator and Network consultant.
ISC2
CISSP
CISSP (Certified Information Systems Security Professional) is introduced by ISC2. the ISC2 is a not profit organization and it manages the CISSP exams. A CISSP exam is designed for the candidates who are having minimum four years of experience in the field of Information systems. A bachelor and a Master degree separately, can be a substitute of the one required years for this exam. Also, some lower level certifications like SSCP (Systems Security Certified Practitioner) is also recommended before the CISSP exam.
The CISSP exam is aimed for the IT professionals who want to be Information security professionals, systems security professionals and network security professionals
Showing posts with label networking. Show all posts
Showing posts with label networking. Show all posts
Saturday, January 30, 2010
Wednesday, January 27, 2010
WAN Introduction
To share data and network resources among the computers in a network is known as networking. Computer networking is a core part of the whole information technology field because without it computers can never communication with each other locally and remotely. Just image that if you work in a bank or in a corporate office and all the computers in your office are without networking. How difficult it would be for you and for the other employees of your office to communications, shares data such as word documents, financial reports, client’s feedback, graphical reports and other important work with the other employees.
Put the same scenario if your office has different branches in the same country and different countries. Data communication has become the vital part of the whole computing industry. There are different standards, protocols, devices and applications that form computer network architecture. With the passage of time there are improved standards, communication devices and network applications that make the data communication processor easier. Following is the basic review of the important things that are involved in the data communication system.
TCP/IP
Protocols are the set of rules, agree upon ways and communication standards that computer and devices use to communication with each other. TCP/IP stands for transmission control protocol/Internet protocol. TCP/IP is the standard protocol for network communication in LAN or WAN. All the devices and applications have to follow to same protocols to make network communication system.
Communication Devices
There are certain devices that are used in LAN/MAN/WAN and wireless networking. The most important devices are router, switch, hub, modem, NIC adapter, access points, broadband router and communication cables. Hub/Switch is a centralized device in a LAN and all the computers connect with the Hub/Switch. In case of failure of Hub/Switch the whole communication stops. Router routes the traffic to the destination based on the IP address of the source and destination computer. With the help of the routing table, the router chooses the best short possible path for data to be sent to its destination. Wireless routers and access points are used in the wireless networking.
Types of Networking
There are three main types of the computer networking such as LAN, MAN and WAN. A LAN covers a room or a building. A MAN covers a network in a city and a WAN covers wide areas such as in a city, country or a network between two or more countries. A LAN can be wired or wireless, MAN can be wired or Wireless and WAN can be through wireless communication technologies such as ISDN lines, frame relay and ATM.
Wireless Networking
Wireless networks are replacing the wired networks rapidly. The administrative control becomes less due to the removal of the bundle of cables in wireless network. The key components are wireless router, access points and PCMCIA LAN cards.
OSI Layers Model
To understand the communication process make the data communication process standardized, the ISO developed the OSI (open system interconnectivity, which defines the seven layers of the OSI model. These seven layers include Application, Presentation, Session, Transport, Network, Data Link and Physical layer. The detail on the OSI seven layers is covered in the separate topic of this website.
DHCP
DHCP stands for the dynamic host configuration protocol. As we know that a unique IP address is a must for communication in LAN, WAN or internet. Assume you are given the task to assign IP addresses to the 10,000 computers in a network. How would you assign? DHCP answers this questions and it assigns the unique IP addresses to all the computers from a given range. There is an administrative control and you can block, assign, lease, renew, specify duration for the IP address and you also do the many other administrative tasks on the DHCP.
DNS
DNS stands for domain name system. DNS translates (converts) the host name into the IP address and IP address into the host name. One thing is clear that the communication in a LAN private WAN or internet is based on the IP addresses. On internet every IP address is associated with the domain name let’s say assume that the IP address 120.1.1.1. is assigned to www.yahoo.com, 12.1.2.3 is assigned to www.google.com and 35.22.32.5 is assigned to www.msn.com and so on. Just imagine that how many IP addresses you can remember 1, 2, 5, 10, 50, 100 or 1000. IP addresses are actually difficult to remember and domain names are easy so every IP address on the internet is associated with a domain name.
Wi-Fi
Wireless fidelity is a base band wireless networking technology that provides high speed internet connectivity to the offices and home users.
Wi-Max
Wi-Max is an advance broadband wireless network technology that provides very high speed up to 70 Mbps. Wi-Max is designed for the corporate office, roaming and home users.
Internet is an example of Network
Internet is the largest network in the work. Millions of computers from all over the world are internetworked with each other and are the part of the internet. The resources hosted on one computer in one part of the world such as web pages, songs files, graphics, video files, documents and images are accessible to the users in another part of the world.
Put the same scenario if your office has different branches in the same country and different countries. Data communication has become the vital part of the whole computing industry. There are different standards, protocols, devices and applications that form computer network architecture. With the passage of time there are improved standards, communication devices and network applications that make the data communication processor easier. Following is the basic review of the important things that are involved in the data communication system.
TCP/IP
Protocols are the set of rules, agree upon ways and communication standards that computer and devices use to communication with each other. TCP/IP stands for transmission control protocol/Internet protocol. TCP/IP is the standard protocol for network communication in LAN or WAN. All the devices and applications have to follow to same protocols to make network communication system.
Communication Devices
There are certain devices that are used in LAN/MAN/WAN and wireless networking. The most important devices are router, switch, hub, modem, NIC adapter, access points, broadband router and communication cables. Hub/Switch is a centralized device in a LAN and all the computers connect with the Hub/Switch. In case of failure of Hub/Switch the whole communication stops. Router routes the traffic to the destination based on the IP address of the source and destination computer. With the help of the routing table, the router chooses the best short possible path for data to be sent to its destination. Wireless routers and access points are used in the wireless networking.
Types of Networking
There are three main types of the computer networking such as LAN, MAN and WAN. A LAN covers a room or a building. A MAN covers a network in a city and a WAN covers wide areas such as in a city, country or a network between two or more countries. A LAN can be wired or wireless, MAN can be wired or Wireless and WAN can be through wireless communication technologies such as ISDN lines, frame relay and ATM.
Wireless Networking
Wireless networks are replacing the wired networks rapidly. The administrative control becomes less due to the removal of the bundle of cables in wireless network. The key components are wireless router, access points and PCMCIA LAN cards.
OSI Layers Model
To understand the communication process make the data communication process standardized, the ISO developed the OSI (open system interconnectivity, which defines the seven layers of the OSI model. These seven layers include Application, Presentation, Session, Transport, Network, Data Link and Physical layer. The detail on the OSI seven layers is covered in the separate topic of this website.
DHCP
DHCP stands for the dynamic host configuration protocol. As we know that a unique IP address is a must for communication in LAN, WAN or internet. Assume you are given the task to assign IP addresses to the 10,000 computers in a network. How would you assign? DHCP answers this questions and it assigns the unique IP addresses to all the computers from a given range. There is an administrative control and you can block, assign, lease, renew, specify duration for the IP address and you also do the many other administrative tasks on the DHCP.
DNS
DNS stands for domain name system. DNS translates (converts) the host name into the IP address and IP address into the host name. One thing is clear that the communication in a LAN private WAN or internet is based on the IP addresses. On internet every IP address is associated with the domain name let’s say assume that the IP address 120.1.1.1. is assigned to www.yahoo.com, 12.1.2.3 is assigned to www.google.com and 35.22.32.5 is assigned to www.msn.com and so on. Just imagine that how many IP addresses you can remember 1, 2, 5, 10, 50, 100 or 1000. IP addresses are actually difficult to remember and domain names are easy so every IP address on the internet is associated with a domain name.
Wi-Fi
Wireless fidelity is a base band wireless networking technology that provides high speed internet connectivity to the offices and home users.
Wi-Max
Wi-Max is an advance broadband wireless network technology that provides very high speed up to 70 Mbps. Wi-Max is designed for the corporate office, roaming and home users.
Internet is an example of Network
Internet is the largest network in the work. Millions of computers from all over the world are internetworked with each other and are the part of the internet. The resources hosted on one computer in one part of the world such as web pages, songs files, graphics, video files, documents and images are accessible to the users in another part of the world.
Tuesday, January 26, 2010
computer networking basic needs
The basic need for understandig computer networking starts from understanding the layer model which includes. TCP/IP layer model the older one and The OSI layer model The latest and still in use today
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