Tech Exam Prep

Ran Chen, EA, CFP®
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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.

  1. 7시간 전

    CCNA Exam Prep 10, Verification Tools — ping, traceroute, ARP

    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 resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - `ping` uses ICMP echo requests/replies to test reachability, with output symbols like `!` (success), `.` (timeout), and `U` (unreachable) being key troubleshooting clues. - Cisco's `traceroute` uses UDP packets with incrementing port numbers to map a path, unlike Windows which uses ICMP. - An asterisk (`*`) in traceroute output signifies a timeout, often due to a firewall or a router configured not to send ICMP Time Exceeded messages. - ARP resolves Layer 3 IP addresses to Layer 2 MAC addresses but only functions within the local broadcast domain; it cannot cross a router. - For IPv6, Neighbor Discovery Protocol (NDP) replaces ARP, using Neighbor Solicitation (NS) and Neighbor Advertisement (NA) messages. 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

    4분

  2. 1일 전

    CCNA Exam Prep 9, IPv6 Configuration — SLAAC, DHCPv6, EUI-64

    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 resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How SLAAC uses Router Advertisements (RAs) to allow a host to self-assign an IPv6 address using a provided network prefix. - The EUI-64 process creates a 64-bit interface ID by splitting a MAC address, inserting 'FFFE' in the middle, and flipping the 7th bit. - Stateful DHCPv6, triggered by the 'M' flag in RAs, provides full address assignment and tracking, similar to DHCP for IPv4. - Stateless DHCPv6, triggered by the 'O' flag, works with SLAAC to provide supplemental information like DNS servers without tracking addresses. - IPv6 Privacy Extensions (RFC 4941) generate random interface IDs as an alternative to EUI-64 to prevent a host from being tracked across networks. 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

    4분

  3. 2일 전

    CCNA Exam Prep 8, IPv6 Addressing Format and Types

    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 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

    4분

  4. 3일 전

    CCNA Exam Prep 7, VLSM and Subnet Planning

    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 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

    4분

  5. 4일 전

    CCNA Exam Prep 6, IPv4 Subnetting Without a Calculator

    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 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

    4분

  6. 5일 전

    CCNA Exam Prep 5, IPv4 Addressing Basics and Private Ranges

    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 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

    4분

  7. 6일 전

    CCNA Exam Prep 4, Cabling Types — Fiber and Copper

    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 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

    4분

  8. 5월 15일

    CCNA Exam Prep 3, Network Topology Architectures

    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 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

    3분
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소개

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.

정보

  • 제작진
    Ran Chen, EA, CFP®
  • 방송 연도
    2026년
  • 에피소드
    60
  • 등급
    전체 연령 사용가
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    © Copyright 2026 Ran Chen, EA, CFP®
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    Tech Exam Prep