# Featured Posts

#### Posts Tagged ‘ICND1’

WARNING: You must master subnetting using our course or some other trusted materials before you start using these shortcut approaches. It is a common issue for Cisco candidates to move directly to subnetting shortcuts for the exams without fully understanding exactly how subnetting functions.

ICND1 (CCENT)

Question 3: Your co-worker has decided upon use of the 172.16.0.0 address space for a section of your network. This section requires 15 subnets. What subnet mask will you recommend?

Step 1: I reference the Powers of Two chart I created on my scratch paper when I encountered the first question. The forumla for the number of subnets you can create based on subnet bits is 2^s. From the chart I see if we “borrow” 4 bits we can create 16 subnets.

2^7=128  |  2^6=64  |  2^5=32  |  2^4=16  |  2^3=8  |  2^2-=4 | 2  ^1=2  |  2^0=1

Step 2: Borrowing 4 bits beyond the Class B boundary results in 255.255.128+64+32+16 = 240. Our mask is 255.255.240.0.

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WARNING: You must master subnetting using our course or some other trusted materials before you start using these shortcut approaches. It is a common issue for Cisco candidates to move directly to subnetting shortcuts for the exams without fully understanding exactly how subnetting functions.

ICND1 (CCENT)

Question 2: You have run the ipconfig command and discovered your IP address and mask are 192.168.20.102 and 255.255.255.224. How many hosts are permitted on your subnet?

Step 1: I reference the Powers of Two chart I created on my scratch paper when I encountered the first question. Adding 128 + 64 + 32 = 224. There are 3 bits used for subnetting and that leaves 5 bits for hosts.

2^7=128  |  2^6=64  |  2^5=32  |  2^4=16  |  2^3=8  |  2^2-=4 | 2  ^1=2  |  2^0=1

Step 2: The equation for the number of hosts per subnet is 2^h – 2 where h is the number of host bits. From the chart I see that 2^5  = 32. 32-2 = 30 hosts per subnet! Too easy!

As always, let us know in the comments if you have a quicker approach.

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Thanks to Randy of our CCNA program for this suggestion. Randy wanted some guidance on how to solve the subnetting questions in ICND1 and ICND2 very quickly. The ability to do this is often the difference between a passing score and a failed attempt.

WARNING: You must master subnetting using our course or some other trusted materials before you start using these shortcut approaches. It is a common issue for Cisco candidates to move directly to subnetting shortcuts for the exams without fully understanding exactly how subnetting functions.

For this series of posts, we will use simulated exam questions from ICND1 and ICND2. Well, with all that out of the way – let’s have some fun. You will find that once you “turn the corner” on subnetting, you will pray for many of these questions in the exam. It is an opportunity to solve questions quickly and be 100% convinced that your response is “spot on”.

ICND1 (CCENT)

Question 1: What is the last usable address in the subnet of a host with the address 192.168.1.134 and the subnet mask of 255.255.255.240?

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Attention Professional and Expert Level Engineers!

Are you tired of interviewing entry-level staff with no real world knowledge or troubleshooting skills… the so-called “paper CCNA”? Instead of letting your associate engineers rely on brain dumps and memorization to pass their exams, help them build a solid foundation for the advancement of their careers with our new CCENT Class-on-Demand!

Developed from the ground up  this course teaches core networking theory and configuration fundamentals through a structured approach, and develops real-world troubleshooting skills.

Using the same hands-on learning approach offered in our CCIE-level products, our CCENT Class-on-Demand will not only provide candidates with everything they need to pass the 640-822 ICND1 exam, but also allow them to hit the ground running in production network support roles.

Students will receive the following with our CCENT Class-on-Demand:

• Over 12 Hours of Class-on-Demand Video
• Over 120 Practice Exam Questions
• Hands-On Practice Labs
• Short, Focused, Self-Paced Sessions Led By A CCIE Instructor!
• Interactivity In Every Session
• Constant Review Through Assessments
• 24×7 Interactive Online Community Access

Visit http://www.internetworkexpert.com/ccent.htm to view sample videos and practice tests, and figure out if you are smarter than a CCENT!

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We are so excited to be debuting entry-level training in Cisco internetworking soon! This CCENT (Cisco Certified Entry Networking Technician) training program will prove to be unique and unmatched in the Cisco training industry.

The training program will include live equipment, hands-on practice labs; Class on Demand video instruction; dynamic student assessments; and online mentoring 24 x 7; just to name a few!

All Class on Demand modules will feature CCIE-level (Cisco Certified Internetwork Expert) instructors. As such, students will not have to doubt for a moment the qualifications of their instructor.

Here are some highlights and unique advantages provided by the InternetworkExpert entry-level training program:

• Personalized Class on Demand Training – the classroom training is provided by one of our 5 CCIE Senior instructors; these are the same instructors who provide the mentoring throughout the program; more information regarding these incredible instructors can be found at the InternetworkExpert main Web site
• Interactive Class On Demand Training – too often with online, self-paced training, students just sit and watch, never given a single opportunity to interact with the training materials; InternetworkExpert Class on Demand is unveiling unparalleled levels of interactivity with CCENT training
• Real-world training focus – our CCENT training certainly covers every point needed for success in the exam, but the main focus is ensuring our students succeed in the support of actual networks
• Unmatched practice exams – to ensure candidates are ready for the actual exam, InternetworkExpert provides detailed practice exams for the ICND1 test; exams include hands-on practice, drag and drop, multiple choice, and other questions formats that students can expect to see on test day
• Hands-on practice – to ensure that students succeed in real-world network environments, and to ensure success in the exam, students work through rigorous hands-on lab exercises using actual Cisco equipment; lab scenarios are real-world based to ensure candidate success in the industry
• 24×7 mentoring support is available through Instructor Hours, the InternetworkExpert Online Community, and e-mail and Live Chat options

Be sure to watch for sample course materials on our site soon. CCENT should be available prior to Q1 2009!

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