What is a common cause of ADVPN tunnel establishment failure?

Incorrect security policy that blocks IKE traffic

The hub is not configured with a loopback address

The spoke does not have a default route

In ADVPN, what role does the hub play in the establishment of a direct spoke-to-spoke tunnel?

It acts as a relay for the IKE negotiation between spokes

It provides the public IP address of the destination spoke to the initiating spoke

It forwards all data packets between the spokes

It encrypts the signaling messages between spokes

What is the primary purpose of Auto Discovery VPN (ADVPN) in a hub-and-spoke topology?

To allow spokes to establish direct tunnels between each other dynamically, reducing traffic through the hub

To replace the hub with a centralized cloud-based VPN concentrator

To automatically configure all spoke devices from a central management server

To eliminate the need for encryption between spoke devices

What is the first step in establishing a direct spoke-to-spoke tunnel in ADVPN?

The hub sends a pre-configured IPsec tunnel to both spokes

The spoke sends an OSPF hello packet to all other spokes

The spoke sends a request to the hub to discover the destination spoke's public IP address

The spoke directly sends an IKE request to the destination spoke using its private IP address

Juniper NetworksCertified Professional, Security (JNCIP-SEC)

Domain 5Objective 3

Auto Discovery VPNs (ADVPNs) JN0-637 Practice Questions (Page 2)

Part of the Advanced IPsec VPNs domain, which makes up ~20% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 15 practice questions to prepare you well beyond it. (estimate)

15questions here

3free pages

6concepts

Questions 6–10

6foundation · easy
What is a common cause of ADVPN tunnel establishment failure?
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7foundation · easy
In ADVPN, what role does the hub play in the establishment of a direct spoke-to-spoke tunnel?
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8foundation · easy
Which device in an ADVPN network is responsible for initiating the establishment of a direct tunnel to another spoke?
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9foundation · easy
What is the primary purpose of Auto Discovery VPN (ADVPN) in a hub-and-spoke topology?
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10foundation · easy
What is the first step in establishing a direct spoke-to-spoke tunnel in ADVPN?
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