CIDR allowed for more efficient use of IPv4 address space and prefix aggregation, known as route summarization or supernetting. CIDR introduction allowed for: With CIDR, IP addresses and their subnet masks are written as four octets, separated by periods, followed by a forward slash and a two-digit number that represents the subnet mask e.
We offer free online videos that are available on YouTube. Each video has a comprehensive description of the video except for the older videos which may have short descriptions. We do not provide any other training like face to face training at this time.
Does your training cost anything? There is no cost associated with any of our training. Who provides the voice talent for the videos? Currently the voice talent is provided by H P Lewis.
Which courses are you planning on releasing videos for? Currently we are working on Windows Server courses. In particular we are working on the course. Do you offer any certification? We do not provide any certification. We have just started using a modular training model for are courses.
New videos are on the one topic area.
Some courses have overlapping material. For example a lot of courses go into material on DNS. Using a modular training model, videos that share the same material can be included in multiple courses. We believe that your time is valuable and do not want to waste it by you having to watch two videos that cover the same information.
We also want to start training courses like Windows 8 as soon as possible, even before the exam objectives are released. By using modular training module we can provide videos on different operating systems as well, for example certificates in Windows and Windows Can I get a study guide for the course?
Originally we were working on study guides to go with are courses but we have decide not to release these. We have instead created longer descriptions for each video.
If you are interested in a particular topic, find a video on the topic and the description has all the relevant information about that topic. This also includes commands and scripts used in that video.
We believe this makes the information more accessible especially if you want to quickly get information about only part of the video.
Can I get exam questions for the course? We did originally have exam questions available on the site, but we had too many quality control problems with them. For this reason they have been removed and we do not create any new exam questions anymore.
Do you have any network diagrams or other materials to go with the course?Lab - Subnetting Part 1 Subnetting in IPv6 is more easier, more straight-forward and gives you more flexibility than subnetting in IPv4.
You can use ipv6gen to help verify your answers, but it is important to understand how we arrive at those subnets. Activity IPv4 Address Subnetting Part 2 Learning Objectives Upon completion of this activity, you will be able to determine subnet information for a given IP address and subnetwork mask.
Background Borrowing Bits How many bits must be borrowed to create a certain number of subnets or a certain number of hosts per subnet?
While IPv4 uses 32 bits to address the IP (provides approximately 2 32 = 4,,, unique addresses – but in fact about billion addresses are assignable because the IPv4 addressing system separates the addresses into classes and reserves addresses for multicasting, testing, and other specific uses), IPv6 uses up to bits which.
Subnetting Exercises Subnetting Exercise #1 Assume that you have been assigned the /16 network block.
You need to establish eight subnets. subnets objectives part 1: determine ipv4 address subnetting part 2: calculate ipv4 address subnetting background / scenario the ability to work with ipv4 subnets and determine network and host information based on a given iplab subnetting a network - utez - can this network be.
The topic of subnetting can be tedious and challenging for many. This section is excellent at explaining how subnetting works, how IP addresses are broken down, and the purpose of subnetting in security and network administration and what network components are represented.