Binary Math for IPv4 Subnetting
- 5 Practice Tests
- Full lifetime access
- Access on mobile
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- Basic knowledge of binary to decimal and decimal to binary conversion
- Paper and pencil or a word processor to write out calculations
In this first test, you will be converting binary numbers to decimal numbers. You will have two hours to complete this 20 question test. Don't forget to write out your powers of two as you work through each question. Repetitively writing out the powers of two will help you to memorize them and will ultimately help to improve your speed in the long run.
This second test flips things around. In the first test you wee converting from binary to decimal. In this test, you'll be converting from decimal to binary. Just like the first test, you have two hours to work through 20 questions. Also like the first test, you should write out your powers of two as you work through each question to continue with that repetition.
Being able to accurately convert between decimal and binary is a critical skill for anyone who needs to perform subnetting on IP Version 4 (IPv4) addresses. Being able to perform these conversions quickly becomes important when the goal is to pass timed exams such as those for Cisco certification. Whether you're just learning to subnet or you're looking to improve speed and accuracy, these practice exams will serve you well.
This 'course' is made up of five separate practice tests, with each test consisting of 20 questions. Two of the practice tests focus on converting binary numbers to decimal numbers. Two other practice tests are aimed at converting decimal numbers to binary numbers. The final test is a combination of 10 decimal to binary and 10 binary to decimal practice questions. Tests 1 and 2 each allow 2 hours to complete, which works out to 6 minutes per question. The third and fourth tests allow ninety minutes each, or 4-1/2 minutes per question. The final test allows for one hour, or three minutes per question.
Tip: Students will find it helpful to write out the powers of 2 as shown below as they work through each test question.
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1
For the purposes of this course, questions will use no more than 8 bits, meaning there will be no decimal numbers higher than 255, and no need to write out the powers of two any higher than what is shown in the table above.
- Anyone who needs practice converting decimal numbers to binary and binary numbers to decimal
- Individuals studying towards Cisco's CCENT or CCNA exams who need to master binary math in order to complete IPv4 subnetting tasks
- Individuals who are learning IPv4 subnetting who need to improve their binary math skills