『Tech Exam Prep』のカバーアート

Tech Exam Prep

Tech Exam Prep

著者： 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.Copyright 2026 Ran Chen, EA, CFP® 教育
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  • CCNA Exam Prep 10, Verification Tools — ping, traceroute, ARP

    CCNA Exam Prep 10, Verification Tools — ping, traceroute, ARP
    2026/05/22
    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
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    4 分
  • CCNA Exam Prep 9, IPv6 Configuration — SLAAC, DHCPv6, EUI-64

    CCNA Exam Prep 9, IPv6 Configuration — SLAAC, DHCPv6, EUI-64
    2026/05/21
    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
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    4 分
  • CCNA Exam Prep 8, IPv6 Addressing Format and Types

    CCNA Exam Prep 8, IPv6 Addressing Format and Types
    2026/05/20
    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
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    4 分
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