Podcast
Tech Exam Prep
Hosted by Ran Chen, EA, CFP® · EN
Tech Exam Prep is a free, daily podcast by OpenExamPrep covering the most in-demand IT and technology certification exams — including CompTIA Security+, AWS Cloud Practitioner, CompTIA Network+, CCNA, CompTIA A+, and more. Each 5-minute episode breaks down one exam topic with concrete examples, common exam traps, and memory tricks to help you pass on your first attempt. No fluff, no filler — just the concepts you need to know, explained the way the exam tests them. This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP designation. He is passionate about opening access to high-quality exam preparation for everyone. For free practice questions, AI-powered explanations, flashcards, and full study guides, visit https://open-exam-prep.com/ Subscribe and listen daily — your certification is closer than you think.
10episodes
Episodes
Newest firstAll episodes
CCNA Exam Prep 8, IPv6 Addressing Format and Types
Yesterday00:03:37Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - IPv6 addresses are 128 bits, written as eight, 16-bit hexadecimal groups. - How to apply the two compression rules: omitting leading zeros and using the double colon (::) only once. - To identify unicast address types by their prefixes: Global (2000::/3), Unique Local (FC00::/7), and Link-Local (FE80::/10). - That IPv6 uses multicast (FF00::/8) and anycast, and has completely eliminated broadcast addresses. - Common CCNA traps like invalid address compression or choosing the wrong address type for a given network scenario. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 7, VLSM and Subnet Planning
2d ago00:03:32Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - VLSM (Variable-Length Subnet Masking) allows using different subnet masks in the same network to conserve IP addresses. - The most critical rule for VLSM planning on the CCNA exam is to always allocate IP blocks from the largest host requirement to the smallest. - Common exam traps include starting with the smallest subnet, miscalculating block boundaries, and creating overlapping address ranges. - To find the correct subnet size, calculate the required host bits (2^n - 2 >= hosts) and use that to determine the CIDR mask. - A helpful mnemonic for VLSM planning is: "Large to Small, or You'll Waste it All." For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 6, IPv4 Subnetting Without a Calculator
3d ago00:03:53Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - To calculate a subnet's block size instantly using the '256 minus the mask's interesting octet' trick. - To identify an IP address's network and broadcast addresses using the calculated block size. - The difference between total IP addresses in a subnet (2^h) and usable host addresses (2^h - 2), a common exam trap. - How to quickly convert between subnet mask decimal notation (e.g., 255.255.255.224) and CIDR slash notation (e.g., /27). - To apply the 'Block Size is Boss' mental shortcut to anchor your subnetting calculations under exam pressure. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 5, IPv4 Addressing Basics and Private Ranges
4d ago00:03:49Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The three RFC 1918 private IPv4 address ranges you must memorize: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. - How to spot the common CCNA exam trap involving the 172.16.0.0 to 172.31.255.255 private range. - The function of special addresses like the 127.0.0.0/8 loopback block for testing and the 169.254.0.0/16 APIPA range which indicates a DHCP failure. - The difference between historical address classes (A, B, C) and how they relate to default subnet masks still relevant for the exam. - The core networking strategy of using private addresses for internal LANs and Network Address Translation (NAT) for internet connectivity. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 4, Cabling Types — Fiber and Copper
5d ago00:03:48Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to differentiate Single-Mode Fiber for long-distance links from Multi-Mode Fiber for shorter, cost-effective runs. - To identify the minimum UTP Copper category required for specific speeds and distances, such as Cat6a for 10 Gbps at 100 meters. - The specific use cases for straight-through (dissimilar devices) and crossover (similar devices) cables as required by the CCNA exam. - How to recognize common fiber optic connectors like the small form-factor LC and the push-pull SC connectors. - To avoid common exam traps by selecting the most cost-effective and appropriate cabling solution, even when more advanced options would also function. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 3, Network Topology Architectures
6d ago00:03:17Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - To differentiate 3-tier (Access, Distribution, Core) for large campus networks from 2-tier (Collapsed Core) for smaller enterprises. - To recognize spine-leaf architecture as the modern standard for data centers, optimized for east-west server-to-server traffic. - To contrast WAN topologies: Hub-and-spoke for cost-effective centralized branch connectivity versus full-mesh for maximum redundancy at a higher cost. - To identify SOHO topologies as simple, often single-device setups for home or small business use cases. - The fundamental tradeoffs between on-premise (control, capital expense) and cloud (scalability, operational expense) network models. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 2, Network Components — Routers, Switches, Firewalls, APs
1w ago00:03:41Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - Routers operate at Layer 3 to forward packets between different networks and separate broadcast domains. - Switches operate at Layer 2, using MAC addresses to forward frames within the same local network. - Firewalls provide stateful security by inspecting and filtering traffic based on the state of connections. - Access Points act as a Layer 2 bridge, connecting wireless clients to a wired Ethernet network. - The distinction between a router's role (inter-network) and a switch's role (intra-network) is a core CCNA concept. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →CCNA Exam Prep 1, OSI and TCP/IP Layered Models
1w ago00:03:47Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The names and functions of the 7 layers of the OSI model. - How the 4-layer TCP/IP model maps to the more theoretical OSI model. - The process of encapsulation and decapsulation as data moves through the network stack. - The specific Protocol Data Units (PDUs) used at key layers: segments, packets, and frames. - How to apply the layered models as a systematic framework for troubleshooting network issues on the CCNA exam. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →[AWS CCP] 50, AWS Trusted Advisor and Health Dashboard
1w ago00:03:19Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The five categories of AWS Trusted Advisor: Cost Optimization, Performance, Security, Fault Tolerance, and Service Limits. - The key differences in available checks between the free AWS Basic Support plan and paid Business or Enterprise plans. - The critical distinction between the public AWS Service Health Dashboard and the account-specific Personal Health Dashboard. - How Trusted Advisor provides actionable recommendations to reduce costs and improve your security posture. - Why the Personal Health Dashboard is the correct tool for understanding how AWS operational events impact your specific resources. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
Transcribe →[AWS CCP] 49, AWS Marketplace and Partner Network
1w ago00:03:05Tap to summarizeThis podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The core function of AWS Marketplace as a digital catalog for third-party software. - Key product types in the Marketplace, including AMIs, SaaS, and Containers. - The purpose of the AWS Partner Network (APN) as a program for companies that help customers on AWS. - The critical distinction between APN Technology Partners (ISVs) and APN Consulting Partners (professional services firms). - A simple mnemonic to differentiate between the Marketplace (products) and the Partner Network (people) for the exam. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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