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Exam JN0-637 topic 1 question 26 discussion

Actual exam question from Juniper's JN0-637
Question #: 26
Topic #: 1
[All JN0-637 Questions]

Click the Exhibit button.

Referring to the exhibit, which IKE mode will be configured on the HQ-Gateway and Subsidiary-Gateway?

  • A. main mode on both the gateways
  • B. main mode on the HQ-Gateway and aggressive mode on the Subsidiary-Gateway
  • C. aggressive mode on both the gateways
  • D. aggressive mode on the HQ-Gateway and main mode on the Subsidiary-Gateway
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Suggested Answer: C 🗳️
by Duke_CT at July 13, 2025, 12:14 p.m.

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e359166
3 weeks ago
Selected Answer: B
Main Mode is used when both VPN peers have static public IP addresses. Aggressive Mode is used when one of the peers (typically a branch or remote site) has a dynamic public IP address, since identity protection is less critical and the peer cannot be pre-identified by IP. Therefore: HQ-Gateway (static IP) → Main Mode Subsidiary-Gateway (dynamic IP) → Aggressive Mode
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98871a4
4 months ago
Selected Answer: C
Aggressive Mode Uses 3 messages (faster, but less secure). Peer identity is sent unencrypted, so it can be sniffed. Used in situations where one peer has a dynamic IP or configuration must be quick.
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