The IPv6 Address Types There are three basic IPv6 address types: Unicast – A unicast address is the most common form of an IP address and is assigned to one network interface We already learn IPv4 unicast addresses. An IPv6 unicast address uniquely identifies an interface on an IPv6-enabled device. For communication over IPv6, source IPv6 […]
IPv6 addresses are 128 bits in length and represented as eight groups of four hexadecimal digits each, each group representing 16 bits. The address can be written in either lowercase or uppercase. Preferred Format As we know that IPv6 address is 128 bit and in 8 groups so the preferred format for writing an IPv6 address […]
With a growing Internet population, a limited IPv4 address space, issues with NAT and an Internet of Everything, the time has come to begin the transition to IPv6. But due to the size of the Internet, it is not possible to migrate IPv4 addresses to IPv6 addresses in a synchronized manner. Because some IPv4 addresses […]
It’s a well-known fact that the Internet is growing at an astronomical speed due to the flexibility of its design. The devices we want to communicate with has grown from a collection of static devices to mobile devices mostly connected on the internet. The IP version currently used in the internet and networks is IP […]
There are many addresses that are used for special purposes. Just like the network address and broadcast address that cannot be assigned to hosts. There are many special addresses that can be allotted to hosts, but with limitations on how those hosts can interact within the network. Loopback addresses (127.0.0.0 /8 or 127.0.0.1 to 127.255.255.254) […]
As we learn that all IP addresses have a network and host portion. In classful addressing, the network portion ends on one of the splitting dots in the address. On the other words, Classful addressing divides an IP address into the Network portion and Host portions along octet boundaries. Classful address uses a fixed subnet mask which is /8, /16 […]
In 1981, classful addressing, formally adopted as part of the Internet Protocol (IP) in RFC 790, was the Internet’s first major addressing scheme. The IP address was 32 bits in size, just as today, but was managed considerably differently. There were three address classes to chose from A, B, or C, corresponding to 8-bit, 16-bit, or 24-bit […]
Public IP addresses A public IP address is an IP address that is assigned to a network devices, host and servers to allow direct access to the Internet. Different type of servers like a web server, email server and any server device directly accessible from the Internet are using public IP addresses. A public IP […]
The Cisco Certified Network Associate – Routing and Switching (CCNA – Routing and Switching ) certification title has become the leading entry level network certification. The Cisco Certified Network Associate (Routing and Switching) certification was developed by Cisco to test the knowledge of candidate at networking at entry level. The CCNA – Routing and Switching certification analyzes the candidate’s ability to install, configure, operate, and troubleshoot medium-size networks.
The exam is scheduled for 120 minutes and has 50-60 questions on it. The people whose language is not English can get additional 30 mints.
During the exam, no outside reference materials are allowed for candidates. The following topics are general guidelines for the content. In order to improve reflect the contents of the exam and for clarity purposes, the below guidelines may change at any time without notice.
- Operation of IP Data Networks
- LAN Switching Technologies
- IP addressing (IPv4/IPv6)
- IP Routing Technologies
- IP Services
- Network Device Security
- WAN Technologies
CCNA Routing and Switching certification have many advantages to the employee and employer. These include future-proofing and greater utilization of network capabilities resulting in increased employee productivity and an improved ROI on network investments. The employees get training on the newest hardware and software. So when the employers get a chance to upgrade their hardware and software, their employees will have the tools and skills to hit the ground running when new projects begin.
The CCNA Routing and Switching certification is valid for three years at such time, you will need to recertify.