. Four full ICND1 or ICND2 practice exams combined with four full CCNA practice exams, part review questions, and book questions (more than 500 ICND1 and more than 400 ICND2 unique exam-realistic questions). Direct links from each question to detailed tutorials. Performance tracking. PDF, EPUB, and MOBI (Kindle eBook) formats, which. Welcome to study-ccna.com website, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the CCNA exam (200-125), but it can also be used as a reference site for anything networking related. Looking for free CCNA Study Guide or CCNA Tutorials or do not have money to get expensive CCNA online training, you are at right place. This CCNA Study Guide explains each CCNA topic in detail with examples in separate CCNA Tutorial.
What is CCNA?
CCNA is a popular certification among computer network engineers. Full Form of CCNA is Cisco Certified Network Associate. It is a certification program valid for all type of engineers. It includes entry-level network engineers, Network Administrators, Network Support Engineers and Network Specialists.
It is estimated that more than 1 million CCNA certificates have been awarded since it was first launched in 1998.
The CCNA certificate covers a broad range of networking concepts. It helps candidates to prepare for the latest network technologies they are likely to work on.
Some of the common topics covered under CCNA certification include:
Note: Cisco certification is valid only for 3 years. Once the certification expires the certificate holder has to take CCNA certification exam again.
Why to acquire a CCNA certification?
Types of CCNA certification
To secure CCNA. There are basically two approaches as shown below.
Beside this certification, new certification course enrolled by CCNA include-
For more detail on these exams, visit the link here.
The candidate to a CCNA certification can also prepare for the exam with the help of the CCNA boot camp.
To complete CCNA exam successfully. These are the topics one must be thorough of TCP/IP and the OSI model, subnetting, IPv6, NAT (Network Address Translation) and wireless access.
What does the CCNA course consist of
New changes in the current CCNA exam includes,
Eligibility Criteria for Certification
Internet local area networks
An internet local area network consists of a Computer Network that interconnects computers within a limited area like office, residence, laboratory, etc. This area network includes WAN, WLAN, LAN, SAN, etc.
Among these WAN, LAN and WLAN are most popular ones. In this study guide, you will learn how the local area networks can be established using these network system.
Understanding the Need for Networking
What is a Network? Brother pes files free download.
A network is defined as a two or more independent devices or computers that are linked to share resources (such as printers and CDs), exchange files, or allow electronic communications.
For example, the computers on a network may be linked through telephone lines, cables, satellites, radio waves, or infrared light beams.
The two very common types of network include:
From OSI reference model, the layer 3, i.e., Network layer is involved in networking. This layer is responsible for packet forwarding, routing through intermediate routers, recognizing and forwarding local host domain messages to transport layer (layer 4), etc.
The network operates by connecting computers and peripherals using two pieces of equipment include routing and switches. If two devices or computers are connected on the same link, then there is no need for a network layer.
Internetworking Devices used on a network
For connecting internet, we require various internetworking devices. Some of the common devices used in building up Internet are.
Understanding TCP/ IP layers
TCP/IP stands for Transmission Control Protocol/ Internet Protocol. It determines how a computer should be connected to the Internet and how data should be transmitted between them.
Below image shows TCP/IP model connected to OSI Layers.
Understanding TCP/IP Internet Layer
To understand TCP/IP internet layer we take a simple example. When we type something in an address bar, our request will be processed to the server. The server will respond back to us with the request. This communication on the internet is possible due to the TCP/IP protocol. The messages are sent and received in small packages.
The Internet layer in the TCP/IP reference model is responsible for transferring data between the source and destination computers. This layer includes two activities
So how this happen?
Internet layer packs data into data packets referred as IP datagrams. It consists of source and destination IP address. Beside this, IP datagram header field consists of information like version, header length, type of service, datagram length, time to live, and so on.
In network layer, you can observe network protocols like ARP, IP, ICMP, IGMP, etc. The datagram are transported through network using these protocols. They each resemble some function like.
The image below shows the format of an IP address.
Understanding TCP/IP Transport Layer
The transport layer also referred as Host-to-Host Transport layer. It is responsible for providing the Application layer with session and datagram communication services.
The main protocols of the Transport layer are User Datagram Protocol (UDP) and the Transmission Control Protocol (TCP).
Network Segmentation
Network segmentation implicates splitting the network into smaller networks. It helps to split the traffic loads and improve the speed of the Internet.
Network Segmentation can be achieved by following ways,
Why Network Segmentation is important
Network Segmentation is important for following reasons,
VLAN Segmentation:
VLANs enables an administrator to segment networks. Segmentation is done based on the factors such as project team, function or application, irrespective of the physical location of the user or device. A group of devices connected in a VLAN act as if they are on their own independent network, even if they share a common infrastructure with other VLANs. VLAN is used for (default gateway router).
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |