Jeremy McDowell
@JeremysITLab
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🇨🇦→🇯🇵 (2014～) Student at @42_tokyo (2025.04～) I make educational videos about computer networking on YouTube. CCNP・日本語能力試験１級・一人社長
Tokyo, Japan
Joined November 2019
📝 CCNA quiz You are subnetting a /25 network. What is the longest prefix length that allows at least 20 hosts per subnet? a) /26 b) /27 c) /28 d) /29
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📝 CCNA quiz In the output of "show interfaces" which counter lists the number of received frames that are smaller than the minimum frame size? a) Shorts b) Gnomes c) Dwarves d) Runts
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📝 CCNA quiz Which of the following messages is typically flooded by a switch? a) ICMP echo request b) ICMP echo reply c) ARP request d) ARP reply
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📝 CCNA quiz A router learns multiple routes to the same network. Which route will it install in the routing table? a) IS-IS route, metric 10 b) IS-IS route, metric 5 c) OSPF route, metric 10 d) OSPF route, metric 5
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📝 CCNA quiz What was used to secure the following enable secret? "enable secret 5 $1$mERr$Bok4KDfVutXOJolNq009M/" a) MD5 b) The "service password-encryption" command c) SHA256 d) scrypt
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📝 CCNA quiz PC1's IP address is 172.28.188.145/28. What is the broadcast address of its subnet? a) 172.28.188.155 b) 172.28.188.151 c) 172.28.188.149 d) 172.28.188.159
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📝 CCNA quiz Which SNMP message is sent from a managed device to the NMS, and then acknowledged by the NMS? a) Alert b) Trap c) Inform d) Set
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📝 CCNA quiz Which language is used for Terraform configuration files? a) Python b) Go c) HCL d) YAML
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The resources I’ve used for studying the CCNA are: @JeremysITLab YouTube course and books. @NetworkChuck (subnetting, and soon to be Linux) And also for knowledge and inspiration (guys with experience and great stories/paths): @beardeditguy
@thedatabunny Let’s connect.
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📝 CCNA quiz Which REST API authentication method provides access delegation, such as using your Google account to access a separate service? a) OAuth 2.0 b) Basic authentication c) Bearer authentication d) API key authentication
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