Juniper JN0-682 Practice Test - Questions Answers
List of questions
Related questions
Question 1
Which statement is true about the route shown in the exhibit?
Question 2
You are asked to implement VXLAN in your data center network. You must choose between implementing EVPN signaling and multicast signaling. Which two statements are correct in this scenario? (Choose two.)
Explanation:
A) EVPN signaling reduces ARP flooding, while multicast signaling does not. EVPN uses BGP to distribute MAC address information, which can also include IP address bindings, thereby eliminating the need for ARP flooding across the VXLAN overlay. B. EVPN signaling propagates MAC addresses across the network, while multicast signaling does not. In an EVPN environment, MAC address advertisements are distributed via BGP EVPN routes, enabling efficient and scalable MAC address learning and distribution.
EVPN Overview
Question 3
You have a two spine and four leaf CRB topology and you must ensure that the hosts connected to the leaf devices have reachability to all IRB interface addresses, including the local spine IRB
addresses, and the virtual gateway address.
Which two configuration parameters must be used to accomplish this task? (Choose two.)
Explanation:
B) Configure virtual-gateway-accept-data under the IRB interface. This configuration is necessary to ensure that the IRB interfaces on the spine devices can handle traffic destined to the virtual gateway IP address.
D) Configure proxy-macip-advertisement under the IRB interface. This enables the advertisement of proxy MAC/IP routes to remote VTEPs. This is essential in a CRB (Centralized Routing and Bridging) topology to ensure that all hosts, including those connected to the spine devices, have reachability to all IRB interface addresses.
Juniper EVPN Configuration Guide
Question 4
You want to configure redundant Layer 3 gateways
In this scenario, which two juniper best practices would accomplish this task? (Choose two.)
Explanation:
A) Allowing Junos to dynamically create the virtual MAC address of the IRB interface ensures unique MAC addresses for redundancy and avoids conflicts. C. Configuring both IRB interfaces manually with the same address ensures consistency and helps in creating a redundant Layer 3 gateway setup.
Question 5
You are asked to configure VXLAN for you c data center using multicast to exchange VTEP information?
In this scenario, which two configuration parameters must match on the VTEPs in the same VXLAN segment? (Choose two.)
Explanation:
C) Multicast group must match on the VTEPs in the same VXLAN segment to ensure that they can properly participate in the same broadcast domain. D. VNI (VXLAN Network Identifier) must also match to ensure that all VTEPs are part of the same VXLAN overlay network.
Question 6
A client with five data centers spread around the country uses MPLS L2VPNs to provides point- to- point data center interconnect between each data center in a full-mesh network. The client Is considering an MPLS EVEN implementation.
In this scenario, what are three advantages of using MPL5 EVEN interconnects? (Choose two.)
Explanation:
B) MPLS EVPN provides for local proxy ARP/ND resolution, which improves efficiency and reduces broadcast traffic. C. MPLS EVPN supports point-to-multipoint connectivity, allowing more flexible and scalable network designs. D. MPLS EVPN facilitates MAC learning in the control plane, which leads to more efficient and scalable network operations.
Question 7
Which EVPN router type prevents BUM traffic from looping back to a multihued host?
Explanation:
The Ethernet segment router in EVPN is responsible for preventing BUM traffic from looping back to a multi-homed host. It ensures that BUM traffic is properly handled in scenarios where hosts are connected to multiple leaf nodes.
Question 8
You have a site with thousands of MAC addresses multihomed to two leaf nodes in an EVPN VXLAN. In this scenario, which EVPN feature provides fast network convergence in the event of a leaf node link failure?
Explanation:
BGP Additional Paths in EVPN-VXLAN environments enable the advertisement of multiple paths through BGP, which provides faster network convergence in the event of a leaf node link failure. This is especially important in large-scale networks with thousands of MAC addresses.
Question 9
Which two statements define the use of route targets and route distinguishers in an EVPN? (Choose two.)
Explanation:
A) Route distinguishers (RDs) ensure that routes from different clients remain unique within the data center domain by appending a unique identifier to each route, allowing overlapping IP spaces to coexist in the same network.
C) Route targets (RTs) identify the VRF into which the route should be placed. They are used in the import and export policies to control the distribution of routes among different VRFs, ensuring that routes are only shared with the intended VRFs.
Question 10
You are configuring an EVPN overlay network. You want to ensure that leaf devices can respond to ARP requests from locally connected hosts, when the leaf device knows the MAC of the intended destination.
In this scenario, what should you configure on the leaf devices to accomplish this task?
Explanation:
Configuring Proxy ARP on leaf devices in an EVPN overlay network enables them to respond to ARP requests on behalf of other hosts. When the leaf device knows the MAC of the intended destination, it can reply to ARP requests with its own MAC address, thus facilitating local resolution and avoiding unnecessary ARP traffic across the overlay.
Question