Disagreement ranking

200-301 — most debated topics

Community-voted ranking of 77 topics, sorted by disagreement level. A higher dispute score means more test-takers disagree on the answer.

Full ranking

77 topics · highest disagreement first

  1. Configuring Layer 3 EtherChannel with LACP

    A-grade Dispute: 53% 66 comments

  2. Subnetting: Validating First Usable Host Addresses

    A-grade Dispute: 52% 54 comments

  3. Post-WLAN Controller Deployment Tasks

    A-grade Dispute: 50% 31 comments

  4. Rapid PVST+ Port State That Neither Receives BPDUs nor Learns MAC

    S-grade Dispute: 42% 12 comments

  5. Identifying an Object in a JSON Schema

    A-grade Dispute: 33% 4 comments

  6. Interface Instability Caused by a Half-Duplex / Duplex Mismatch

    A-grade Dispute: 33% 4 comments

  7. Computing the EUI-64 Interface ID for a Given MAC Address

    S-grade Dispute: 29% 11 comments

  8. Electing the Root Bridge in PVST+ by Priority and MAC

    S-grade Dispute: 29% 7 comments

  9. How a Switch Handles an ARP Request for an Unknown Destination

    S-grade Dispute: 25% 7 comments

  10. Diagnosing Router Interface Output Drops as Oversubscription

    A-grade Dispute: 25% 4 comments

  11. Switch Frame Forwarding: Flooding Unknown Unicast Destinations

    S-grade Dispute: 22% 8 comments

  12. Configuring a WLAN for WPA2 PSK with MAC-Filter Restrictions

    S-grade Dispute: 20% 5 comments

  13. How MAC Address Learning Functions on a Switch

    A-grade Dispute: 17% 4 comments

  14. Switch Action on a Frame from an Unknown Source MAC

    A-grade Dispute: 15% 4 comments

  15. How MAC Address Learning Works on a Switch

    S-grade Dispute: 12% 6 comments

  16. Computing the IPv6 EUI-64 Interface ID from a Given MAC

    S-grade Dispute: 11% 5 comments

  17. Restricting a WLAN to DHCP and DNS with a Web Policy

    A-grade Dispute: 11% 3 comments

  18. Managing an AP with No IP Using the Console Port

    A-grade Dispute: 0% 3 comments

  19. IPv6 Multicast Versus Anycast Address Behavior

    A-grade Dispute: 0% 4 comments

  20. Identifying True Multifactor Authentication Parameters

    A-grade Dispute: 0% 3 comments

  21. Setting the Default Gateway in a DHCP Pool

    A-grade Dispute: 0% 5 comments

  22. How a Switch Performs Frame Switching

    A-grade Dispute: 0% 5 comments

  23. Router Behavior When Resolving a URL on the CLI

    A-grade Dispute: 0% 3 comments

  24. How a Switch Performs Frame Switching

    A-grade Dispute: 0% 6 comments

  25. Building the EUI-64 Interface Identifier for Router R2

    A-grade Dispute: 0% 9 comments

  26. Layer 2 Switch Characteristic: VLAN Segmentation via Tagging

    A-grade Dispute: 0% 3 comments

  27. How MAC Learning Adds Source Addresses to the CAM Table

    A-grade Dispute: 0% 9 comments

  28. Disabling an EtherChannel with port-channel min-links

    A-grade Dispute: 0% 9 comments

  29. Two Reasons to Implement DHCP in a Network

    A-grade Dispute: 0% 11 comments

  30. EUI-64 Interface ID Calculation for Router R2 (Segment 7)

    A-grade Dispute: 0% 8 comments

  31. Forming the EUI-64 Suffix for Router R1 (Segment 8)

    A-grade Dispute: 0% 6 comments

  32. Root Bridge Election on a Priority Tie: Lowest MAC Wins (SW2)

    A-grade Dispute: 0% 6 comments

  33. Root Bridge Election by Lowest MAC When Priorities Are Equal (SW4)

    A-grade Dispute: 0% 4 comments

  34. Routes Learned from Neighbors (Not Directly Connected) on R2

    A-grade Dispute: 0% 4 comments

  35. RFC 4627 Default Encoding for JSON Text Is UTF-8

    A-grade Dispute: 0% 4 comments

  36. Host Misconfigured with the Wrong Default Gateway

    A-grade Dispute: 0% 3 comments

  37. Electing the Root Bridge by Lowest Priority Then MAC

    A-grade Dispute: 0% 7 comments

  38. Using Digital Certificates for Enterprise Device Authentication

    A-grade Dispute: 0% 4 comments

  39. Biometric Authentication Uses a Physical Attribute

    A-grade Dispute: 0% 3 comments

  40. Electing the Root Bridge by Lowest Priority (SW2)

    A-grade Dispute: 0% 5 comments

  41. What an Iterative DNS Query Does

    A-grade Dispute: 0% 6 comments

  42. Control-Plane Centralization: Controller-Based vs Traditional Networks

    A-grade Dispute: 0% 3 comments

  43. IPsec Tunnel Mode Encrypts the Entire Original Datagram

    A-grade Dispute: 0% 8 comments

  44. Equal-AD Routes Cause R1 to Load-Balance to 172.16.1.4/30

    A-grade Dispute: 0% 3 comments

  45. Switch Counters Incremented When a Frame Fails FCS

    S-grade Dispute: 0% 22 comments

  46. Which IP Address and Mask Work on a /30 Subnet?

    S-grade Dispute: 0% 77 comments

  47. What Does PoE Power Classification Override Do on a Switch Port?

    S-grade Dispute: 0% 13 comments

  48. SLAAC and EUI-64 IPv6 Address Assignment on an Interface

    S-grade Dispute: 0% 24 comments

  49. Which Subnet Mask Fits 320 Users on One Subnet?

    S-grade Dispute: 0% 39 comments

  50. What Is a Function of a Network Endpoint?

    S-grade Dispute: 0% 48 comments

  51. Which Layers Are Collapsed in a Collapsed Core Design?

    A-grade Dispute: 0% 5 comments

  52. Which PoE Mode Guarantees Power After Device Detection?

    S-grade Dispute: 0% 71 comments

  53. Which Action Does the Data Plane Perform?

    S-grade Dispute: 0% 12 comments

  54. What Is the Primary Effect of spanning-tree portfast?

    S-grade Dispute: 0% 63 comments

  55. Which command configures an LLDP delay time of 5 seconds?

    A-grade Dispute: 0% 9 comments

  56. CDP Behavior When an Interface Has No IP Address

    S-grade Dispute: 0% 96 comments

  57. Which Two Statements About VTP Are True?

    S-grade Dispute: 0% 80 comments

  58. What Is a Function of MAC Learning on a Switch?

    S-grade Dispute: 0% 50 comments

  59. Which Feature Minimizes Wi-Fi Roaming Association Time?

    S-grade Dispute: 0% 17 comments

  60. Reason to Implement LAG on a Cisco WLC

    A-grade Dispute: 0% 4 comments

  61. What Network Node Function is Centralized on an SDN Controller?

    A-grade Dispute: 0% 33 comments

  62. JWT Definition in REST API Security Explained

    A-grade Dispute: 0% 19 comments

  63. LLDP Configuration on Single Interface in Multivendor Network

    A-grade Dispute: 0% 16 comments

  64. Step After EAP Success in EAP-TLS Session

    A-grade Dispute: 0% 17 comments

  65. DHCP Relay with ip helper-address for VLAN 10

    A-grade Dispute: 0% 15 comments

  66. Recommended EtherChannel Load-Balancing Mode for Cisco WLCs?

    A-grade Dispute: 0% 10 comments

  67. Reducing Maintenance Costs on a Traditional Network

    A-grade Dispute: 0% 15 comments

  68. What Prevents a Workstation from Receiving a DHCP Address?

    S-grade Dispute: 0% 32 comments

  69. EtherChannel LACP Passive Mode Configuration

    A-grade Dispute: 0% 24 comments

  70. Multi-Vendor Network Discovery Protocol Configuration

    A-grade Dispute: 0% 10 comments

  71. AAA Operations: Authentication, Authorization, and Accounting

    A-grade Dispute: 0% 9 comments

  72. VLAN Frame Flooding and the Ingress-Port Exception

    A-grade Dispute: 0% 12 comments

  73. Subnet Mask Required for 192.168.25.100 and 192.168.25.128

    A-grade Dispute: 0% 20 comments

  74. Two Reasons to Use CDP: Native VLAN and Layer 2 Verification

    A-grade Dispute: 0% 15 comments

  75. Is LLDP Configured in Global Configuration Mode?

    A-grade Dispute: 0% 14 comments

  76. HTTP PUT: Idempotent Update, Not a Non-Idempotent Operation

    A-grade Dispute: 0% 8 comments

  77. Copper vs Single-Mode Fiber Cable Characteristics

    A-grade Dispute: 0% 9 comments

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