EVPN Services Practice Questions & Answers • ExamPrepare

36 questions in this view

Page 1 of 6

Question 1

In the exhibit, the EVPN-IRB is configured to use the interface-ful unnumbered model. Which of the following statements about the route advertisement is FALSE?

PE1 advertises an EVPN IP-Prefix route for prefix 10.10.1.0/24 to PE3. The BGP update includes MAC-01 as an overlay index.
PE1 advertises an EVPN MAC route for MAC-01 to PE3. The BGP update includes the route-target value configured for VPRN 15.
PE3 advertises a VPN-IPv4 route for prefix 10.10.1.0/24 to PE4. The BGP update includes an MPLS service label.
PE4 advertises an EVPN IP-Prefix route for prefix 10.10.1.0/24 to PE2. The BGP update includes MAC-04 as an overlay index.

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Question 2

In the exhibit, an EVPN-IRB that uses the interface-ful model is configured to provide routing between the two hosts. Which of the following configurations is NOT required?

Configure an MP-BGP session that supports the exchange of EVPN routes between PE1 and PE2.
Enable bgp-ipvpn, with its own route target and route distinguisher parameters, in VPRN 15 on routers PE3 and PE4.
Configure an MP-BGP session that supports the exchange of VPN-IPv4 routes between PE3 and PE4.
Enable the advertisement of IP prefixes in VPLS 3 on routers PE3 and PE4.

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Question 3

Consider the exhibit. Which of the following statements about the operation of VPLS 20 is FALSE?

PE1 advertises an IMET route to PE3 when its VPLS 20 becomes operationally UP.
PE3 advertises a MAC route for MAC-02 to PE1 when its VPLS 20's mesh-SDP becomes operationally UP.
PE3 floods BUM traffic received from PE1 to PE4.
The flooding list maintained by PE1 for VPLS 20 contains a single entry, which is PE3.

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Question 4

In the exhibit, VPWS 4 enables communications between CE1 and CE2. Which of the following statements about the operation of VPWS 4 is TRUE?

PE1 and PE3 exchange their service labels using EVPN MAC routes.
PE3 and PE4 exchange their service labels over an established targeted LDP session.
PE1 advertises a MAC route to PE3 as soon as VPWS 4 is administratively enabled.
PE3 advertises a MAC route to PE1 as soon as it receives a MAC route from PE1.

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Question 5

Consider the exhibit. Which of the following configuration is NOT required to enable Layer-2 communication between CE1 and CE2?

Configure an MP-BGP session that allows the exchange of EVPN routes between PE1 and PE3.
Configure an MP-BGP session that allows the exchange of IPv4 labeled routes between PE3 and PE4.
Configure a service distribution point (SDP) on PE3 to reach PE4, and another SDP on PE4 to reach PE3.
Configure a local attachment circuit (AC) and a remote AC for VPWS 4 on all PE routers.

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Question 6

Consider the exhibit. Which of the following statements about the operation of EVPN VPWS 4 is FALSE?

PE1 brings the SAP in VPWS 4 operationally down.
PE3 sets the P flag in its advertised A-D per EVI route to 1.
PE2 receives a single A-D per EVI route. The route is originated from PE3.
PE2 receives two A-D per ES routes: one from PE1 and another from PE3.

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