
Quick course overview and advice.
Video tutorial for converting binary to decimal.
Worked example
Convert this binary number to decimal without the use of a calculator:
11001010
Video explanations for the 'Converting from Binary to Decimal Quiz'.
Video tutorial for converting decimal to binary.
Worked example.
Convert this decimal number to binary without the use of a calculator:
157
Video explanations for the 'Converting from Decimal to Binary Quiz'.
Introductory basics for IPv4 addresses such as the address length and the concept of an octet.
Dividing the IP address into Network ID and Host ID using a subnet mask.
The following three examples are explored in detail:
Dividing an IP address into Network ID and Host ID using a subnet mask.
The following example is explored in detail:
Video explanations for the 'IPv4 Address Structure Quiz A'.
Dividing an IP address into Network ID and Host ID using a subnet mask.
The following example is explored in detail:
Video explanations for the 'IPv4 Address Structure Quiz B'.
An introduction to the prefix length and CIDR Notation.
Dividing an IP address into Network ID and Host ID using a prefix length.
The following example is explored in detail:
Video explanations for the 'IPv4 Address Structure Quiz C'.
Converting a subnet mask to a prefix length. The following example is explored:
How to convert a subnet mask of 255.255.255.224 to a prefix length?
Video explanations for the 'Converting a Subnet Mask to Prefix Length Quiz'.
A tutorial on converting a prefix length to a subnet mask. In this video we explore converting /15 to a subnet mask.
Video explanations on the 'Converting Prefix Length to a Subnet Mask Quiz'.
IPv4 cram sheet containing IPv4 addressing rules, IPv4 Classes, IPv4 Private address ranges and the Automatic Private IP Address (APIPA) range.
A description of the unicast, multicast and broadcast transmission types.
A description of the network ID, directed broadcast IP, broadcast IP and the loopback IP address range.
A tutorial on calculating the number of IP addresses for a given network ID.
Two worked examples on calculating the number of IP addresses in a given network. The examples used are:
Calculate the number of IP addresses in the network given:
Video explanations for the 'Calculating the Number of IPs per Network ID Quiz' questions 1-10.
Video explanations for the 'Calculating the Number of IPs per Network ID Quiz' questions 11-18.
Detailed tutorial of Class A.
Detailed tutorial of Class B.
Detailed tutorial of Class C.
Detailed tutorial of Class D.
Detailed tutorial of Class E.
Video explanations for the 'IPv4 Classes Quiz'.
Detailed description of the Private IP Address Ranges.
Detailed description for the Automatic Private IP Address range.
Video explanations for the 'Private vs Public IPv4 Address Quiz'.
A brief description of subnetting.
An introduction to the subnetting process. Part 1.
An introduction to the subnetting process. Part 2.
A detailed subnetting demonstration with complete explanations. Part 1.
A detailed subnetting demonstration with complete explanations. Part 2.
A detailed subnetting demonstration with complete explanations. Part 3.
A detailed subnetting demonstration with complete explanations. Part 1.
A detailed subnetting demonstration with complete explanations. Part 2.
A detailed subnetting demonstration with complete explanations. Part 3.
A detailed video explanation to the 'Subnetting Quiz Case 1'.
A detailed video explanation to the 'Subnetting Quiz Case 2'.
Which of the following IP addresses are on the same subnet?
A: 192.168.55.60 255.255.255.240
B: 192.168.55.63 255.255.255.240
C: 192.168.55.65 255.255.255.240
Detailed explanations to the 'Subnetting Practice Questions Type A'.
Quickly identify the subnet that the IP 192.168.201.40 /28 belongs to.
Detailed explanations to the 'Subnetting Practice Questions Type B'.
Which of the following is a directed broadcast IP address?
A: 192.168.55.0 /28
B: 192.168.55.95 /27
C: 192.168.55.96 /27
D: 192.168.55.7 /30
Detailed explanations for question 1 from the 'Subnetting Practice Questions Type C' quiz.
Detailed explanations for question 2 from the 'Subnetting Practice Questions Type C' quiz.
Detailed explanations for question 3 from the 'Subnetting Practice Questions Type C' quiz.
A PC has the IP address 192.168.28.150 255.255.255.192. It is configured to use the default gateway IP 192.168.28.128. Why is it not able to access the Internet?
5 Stars ⭐⭐⭐⭐⭐
"I needed to study this for exams and what I got was more than I thought I would. Best thing is I wasn't bored when he was teaching!"
Arkam Ramzan
This course dives deep into IPv4 addressing and IPv4 subnetting. Starting with binary math and ending with difficult IPv4 subnetting problems this course will prepare you for the subnetting questions on the CCNA, MCSA and CompTIA Network+ exams. Full of shortcuts and useful insights you will gain the clearest understanding of IPv4 addressing and IPv4 subnetting you have every had.
This course divides the material up into small increments and then conquers each with multiple examples, practice questions and video explanations. You will never just get stuck on IPv4 subnetting again.
We actively monitor the Q&A forum and will respond to every relevant question with a helpful answer. We are committed to helping every student achieve their learning goals and will listen to all comments and suggestions.
We invite you to enroll in our course and become an IPv4 subnetting expert today!
Here are some reviews from past students:
5 Stars ⭐⭐⭐⭐⭐
"I am truly amazed the instructor is not a doctor, has a lot of patience. I really took to heart what was taught with the lectures with this subnetting course. Your efforts in instruction carry a lot of weight in gaining the insight I can take away with this knowledgeable and yet so down to earth lesson. Thank you so very much."
Dale Mork
5 Stars ⭐⭐⭐⭐⭐
"The explanation is very thorough, I like that he is taking us baby steps in order to understand the whole procedure.recommend it for anyone!"
Ramona Obreja
5 Stars ⭐⭐⭐⭐⭐
"Excellent Course. I wish I could have gained this clarity in 1998 when I first obtained my CCNA. Your short cuts are GREAT!!! Your explanations are very clear and understandable. I am updating my skills after a layoff and you have prepared me to move forward. Thanks!!!"
Melanie Wright