A cloud provider is evaluating GENEVE for its overlay network. The provider needs to support multiple virtual networks and also wants to carry additional metadata such as security group information. Which feature of GENEVE makes this possible?

The protocol relies on the outer IP header's DSCP field to carry metadata.

The fixed 8-byte header includes a 24-bit VNI and a 32-bit metadata field.

The protocol uses the UDP source port to encode metadata, eliminating the need for a separate option header.

The variable-length option header allows carrying arbitrary metadata, while the 24-bit VNI identifies the virtual network.

A network architect is comparing VXLAN and GENEVE for a new cloud overlay. The requirement is to support a wide range of future services, including network virtualization, security, and telemetry, with minimal overhead. Which protocol should the architect choose and why?

VXLAN, because it supports native encryption, which GENEVE does not.

VXLAN, because it has a simple fixed header that is widely supported and has lower overhead.

GENEVE, because it uses a 24-bit VNI, providing more network segments than VXLAN.

GENEVE, because it offers a flexible variable-length header that can carry multiple options for different services.

A network architect is evaluating GENEVE and VXLAN for a new overlay. The architect is concerned about the overhead of the tunnel header, especially for small packets. Which statement accurately compares the overhead of GENEVE and VXLAN?

Both have identical overhead of 8 bytes, but GENEVE supports more options.

GENEVE has a 4-byte header, while VXLAN has an 8-byte header.

GENEVE has a fixed 8-byte header, while VXLAN has a variable header.

GENEVE has a minimum header of 8 bytes plus optional headers, while VXLAN has a fixed 8-byte header.

A service provider is troubleshooting a VXLAN fabric where some hosts can communicate across VTEPs, but others cannot. The underlay is healthy, and all VTEPs have the same VNI configured. The issue is isolated to specific MAC addresses. What is the most likely cause?

The VNI is incorrectly mapped to a different VLAN on some VTEPs.

The VTEPs are using different UDP source ports for VXLAN, causing load balancers to drop packets.

The MAC addresses are not learned by the EVPN control plane due to a BGP route filtering issue.

The underlay is not configured with multicast, so BUM traffic is dropped for those hosts.

Juniper NetworksCertified Associate, Cloud

Domain 3Objective 3

Encapsulation and Tunneling (MPLS over GRE, MPLS over UDP, VXLAN, EVPN with VXLAN, GENEVE) JN0-214 Practice Questions (Page 5)

Part of the Network Virtualization domain, which makes up ~10% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

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Questions 21–25

21application · medium
A cloud provider is evaluating GENEVE for its overlay network. The provider needs to support multiple virtual networks and also wants to carry additional metadata such as security group information. Which feature of GENEVE makes this possible?
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22application · medium
A network architect is comparing VXLAN and GENEVE for a new cloud overlay. The requirement is to support a wide range of future services, including network virtualization, security, and telemetry, with minimal overhead. Which protocol should the architect choose and why?
Select an answer first
23foundation · easy
What is the size of the VXLAN Network Identifier (VNI) field in the VXLAN header?
Select an answer first
24expert · medium
A network architect is evaluating GENEVE and VXLAN for a new overlay. The architect is concerned about the overhead of the tunnel header, especially for small packets. Which statement accurately compares the overhead of GENEVE and VXLAN?
Select an answer first
25expert · medium
A service provider is troubleshooting a VXLAN fabric where some hosts can communicate across VTEPs, but others cannot. The underlay is healthy, and all VTEPs have the same VNI configured. The issue is isolated to specific MAC addresses. What is the most likely cause?
Select an answer first

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