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Cisco Certified Network Associate(CCNA 200-301)

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Set · 2026-10

How many usable host addresses are in a conventional IPv4 /27 subnet?

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2026-10 · 23 practice questions with explanations

Original, independent study material. This is not an official exam paper.

20 questions on this page

  1. How many usable host addresses are in a conventional IPv4 /27 subnet?

  2. What is the primary purpose of Spanning Tree Protocol in a switched LAN?

  3. Which route is selected first when destination prefixes have different lengths?

  4. Which subnet mask corresponds to an IPv4 /26 prefix?

  5. What is the conventional usable IPv4 host range for 192.0.2.64/26?

  6. A host sends traffic to another IP subnet. Which destination MAC normally appears in its first Ethernet frame?

  7. What does ARP resolve on a conventional IPv4 Ethernet LAN?

  8. Which device function separates IP broadcast domains?

  9. An access port is assigned to VLAN 20. What traffic is it normally intended to carry for a connected PC?

  10. What is the purpose of an IEEE 802.1Q trunk?

  11. Which switch data structure is used to forward ordinary unicast Ethernet frames?

  12. How does a switch normally handle an unknown unicast within a VLAN?

  13. What does an OSPF area help organize?

  14. What information does a default route provide?

  15. An administrator uses SSH instead of Telnet for device management. What protection is gained?

  16. Which protocol commonly supplies an IP address, subnet mask and gateway to a client?

  17. Why must both ends of an EtherChannel use compatible settings?

  18. Which protocol synchronizes device clocks?

  19. Which IPv6 address category is used on the local link and is not routed to other links?

  20. What does a DNS A record normally contain?

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