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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Center Interconnect (DCI) Solutions | 25% | - BGP route policies and route reflectors - Gateway-less EVPN DCI - Interoperability with Nokia 7750 SR |
| Topic 2: Layer 2 EVPN Services | 25% | - EVPN Route Types 1–4 - Anycast Gateway and IRB - Multi-homing and Ethernet Segments |
| Topic 3: SR Linux and EVPN Fundamentals | 25% | - SR Linux architecture and CLI - VXLAN encapsulation and underlay - EVPN control plane and MP-BGP |
| Topic 4: Layer 3 EVPN Services | 25% | - EVPN Route Type 5 - VRF integration and route targets - Symmetric and asymmetric routing |
1. Which of the following statements about utilizing asymmetric routing in an L3 EVPN network is FALSE?
A) If a host interface's has two IP addresses, it must send out two separate EVPN route-type 2 updates for the MAC-VRF.
B) The ingress and egress PE routers will perform both MAC and IP forwarding.
C) All the MAC-VRFs connected to the L3 EVPN network must exist on each PE.
D) Each PE must have a full ARP table for all of the hosts in the L3 EVPN network.
2. Which of the following GARP functions is FALSE?
A) A host sends a GARP to update its own IP/MAC mapping to the other hosts in the subnet.
B) All other hosts within the subnet will update their ARP tables.
C) The other hosts in the subnet will acknowledge the receipt with a reply.
D) The GARP is sent as a broadcast.
3. Which of the following statements about PE-CE routing is FALSE?
A) There are two methods to implement routing between the PE and CE, static and dynamic.
B) The CE advertises BGP EVPN route type 5 updates to the PE and the PE forwards to other PEs.
C) BGP is the preferred option for PE-CE routing as it scales better than static routing.
D) eBGP is preferred which means that the PE and CE are required to be in different autonomous systems.
4. Consider the exhibit.
Which of the following statements about the operation of all-active multi-homing is FALSE?
A) Leaf3 can load balance traffic between Leaf1 and Leaf2 when ECMP is enabled on the MAC-VRF.
B) The Ethernet segment on Leaf1 and Leaf2 is associated to lag 1.
C) Both Leaf1 and Leaf2 can forward BUM traffic to the host.
D) The host can forward BUM traffic to either Leaf1 or Leaf2.
5. Leaf routers are configured to support Layer 2 multi-homing all-active mode.
Which of the following statements is FALSE?
A) All of the sub-interfaces of the LAG must be configured in the Ethernet segment.
B) The Ethernet segment must be administratively enabled.
C) The 2nd through 7th octets of the ESI must not be all zeros.
D) The multi-homing mode of all-active must be configured for the Ethernet segment.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: C |
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