Cisco Certified Network Associate (CCNA) is
a very hot networking certification for quite some time now. The program is
specifically designed to provide a solid insight into the Cisco’s Internetwork
OS and the networking practices as well. A lot of IT companies now ask the
potential employees to have a CCNA certification.
A lot of institutes are available all over the country which prepares you for
the CCNA examination. The Networkers Guru is one such reputable
institution which provides extensive trainings for a lot of Cisco
certifications including CCNA.
Topics
that you must know before sitting for a CCNA examination:
According to the Networkers Guru, following is a list of some CCNA topics, with details which you must know before sitting for
its examination:
·
TCP/IP and the OSI model – This is one
of the most fundamental topics covered under the training for the CCNA
certification. It gives you an overview of the OSI model and how actually
network works in a system. The students sitting for the online CCNA examination
should have a deep understanding of all the 7 OSI layers including the Physical
layer, Data Link layer, Network layer, Transport layer, session Layer,
Presentation layer and the Application layer. All these layers together form
the OSI model and it is considered as the foundation of any networking course.
The students should have a thorough understanding of all the layers and why
they are required in a network model.
·
IPv6 – The latest version of the
internet protocol is given the name IPv6, which basically stands for Internet
Protocol Version 6. This topic incorporates a more complex and comprehensive
version of the IP addressing scheme as the previous one are near to get
saturated and very soon are suppose to get obsolete.
·
Subnetting – Subnetting is probably one
of the most interesting topics of the certification. It is a logical topic
which needs you to concentrate thoroughly on the dynamics of a network
structure. Subnetting process actually breaks large complex networks into
smaller manageable parts. Performance issues of the network can easily be
resolved by using this unique technique. Further, it also becomes easier to
maintain your network when it is broken down into smaller manageable parts.
·
Network Address Translation – The
Network Address Translation or NAT works with the IPv4 where the addresses in
IPv4 are modified while they are in transit through a network. The basic NAT or
the one-to-one NAT is the simplest of all the NAT types which actually connects
two networks having incompatible addressing. It is one of the most used NAT
type as most of the employees and network users deploys this NAT type for
remote accessing of systems through a network.
