JNCIE EVPN Network Implementation Quiz

1. What is the main benefit of using EVPN for data center networks?

Reduced licensing costs

Simplified MAC learning and multicast handling

Elimination of spanning tree

All of the above

2. What is a key advantage of EVPN over traditional VPLS in service provider networks?

Lower memory consumption

Better support for multicast and BUM traffic handling

Simpler configuration syntax

No need for BGP

3. In EVPN, what does the term 'all-active' refer to in multi-homing scenarios?

All PE routers actively forward traffic

All interfaces in a segment actively forward traffic simultaneously

All BGP sessions remain active

All VNIs are continuously advertised

4. Which command enables EVPN on a Juniper device?

Set protocols bgp evpn

Set routing-instances evpn instance-type evpn

Set interfaces evpn

Set system evpn-mode

5. In Juniper QFX switches, what is the purpose of the VXLAN VNI?

To identify the BGP neighbor

To encapsulate Layer 2 traffic across IP networks

To measure network bandwidth

To encrypt control plane traffic

6. What is the purpose of the EVPN Ethernet Auto-Discovery (EAD) route type?

To discover MAC addresses automatically

To establish multi-homing and load balancing

To advertise IP subnets

To identify spine nodes

7. In EVPN, how is split-horizon used to prevent loops?

By filtering routes from the same PE

By limiting BGP advertisement scope

By disabling multicast forwarding

By using TTL decrements

8. What is the significance of the ESI (Ethernet Segment Identifier) in EVPN?

Identifies the PE router

Identifies a multi-homed Ethernet segment

Identifies the VNI

Identifies the BGP peer

9. Which Juniper configuration hierarchy is used to define EVPN instances?

[edit interfaces]

[edit routing-instances]

[edit protocols bgp]

[edit system]

10. In Juniper EVPN, what does IRB (Integrated Routing and Bridging) enable?

Direct routing between EVPN instances

Layer 2 and Layer 3 functionality on same interface

Faster BGP convergence

Automatic VLAN creation

11. What does EVPN stand for?

Ethernet Virtual Private Network

Extended Virtual Protocol Network

Enhanced VPN Encapsulation

Ethernet VPN Extension

12. Which encapsulation method reduces overhead in EVPN deployments?

VLAN tagging

VXLAN

Ethernet over MPLS

GRE tunneling

13. In EVPN, what does the Extended Community attribute carry?

Only Route Target information

Route Target and encapsulation information

Only VLAN ID information

Multicast group addresses only

14. What is the purpose of the Route Distinguisher (RD) in EVPN?

To identify the source PE router

To distinguish between identical prefixes from different sources

To encrypt BGP messages

To measure network latency

15. Which Juniper device family is commonly used for EVPN spine-leaf deployments?

SRX Series

QFX Series

MX Series

EX Series

16. In Juniper EVPN implementation, what does the Bridge Domain (BD) represent?

A Layer 3 forwarding instance

A Layer 2 broadcast domain

A BGP route reflector

An MPLS tunnel endpoint

17. What is the primary function of EVPN Type 3 routes?

Advertise MAC addresses

Establish BUM (Broadcast, Unknown Unicast, Multicast) replication

Distribute IP prefixes

Enable fast convergence

18. Which EVPN route type is used for MAC address learning and advertising?

Type 1 - Ethernet Auto-Discovery

Type 2 - MAC/IP Advertisement

Type 3 - Inclusive Multicast

Type 5 - IP Prefix

19. In EVPN, what is the primary advantage of using BGP-MPLS over BGP-VXLAN?

Reduced control plane overhead

Better multicast support in core

Simpler configuration

Lower latency

20. Which routing protocol does EVPN primarily use to distribute MAC and IP reachability information?

OSPF

BGP

ISIS

RIP