EMT Practice Test

1. Question Content...

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Question1: A customer has two sites connected to PE-1 and a third site dual-homed to PE-2 and PE-3. If BGP is used as the PE-CE protocol, what is the total number of BGP and MP-BGP sessions required on PE-1 for a functional VPRN service? Assume that route reflection is not used.

Question2: Why would a selective export policy be applied to a customer VPRN service? (Choose three)

Question3: Click the exhibit.

According to the display, a BGP loop is detected for route 192.168.1.0/27. On which router is this command executed?

Question4: You are configuring a VPLS spoke termination to a VPRN on an Alcatel-Lucent 7750 SR. If LDP is used for all transport tunnels, what type of sessions are established by the VPRN PE router that is configured with the spoke termination?

Question5: Which command may be used on an Alcatel-Lucent 7750 SR to verify the number of VRF routes allowed, based on the maximum routes value configured in the service instance?

Question6: Which of the following about scaling techniques for route reflectors is FALSE?

Question7: Which of the following about BGP Site of Origin (SoO) is FALSE?

Question8: In a Carrier Supporting Carrier (CSC) VPRN, which of the following is a benefit to the customer carrier?

Question9: Which of the following commands on an Alcatel-Lucent 7750 SR will verify connectivity for a VPRN service
<service-id> when issued from the PE?

Question10: What mechanism allows routes to be shared between customers in different VPRNs?

Question11: You are configuring spoke SDP termination of a VPLS service on a VPRN interface on an AlcatelLucent
7750 SR. The spoke SDP is running over a NULL encapsulated network port. The best practice is to set the VPRN interface p-mtu equal to what value over a NULL encapsulated network port.

Question12: Which of the following protocols are supported by the Alcatel-Lucent 7750 SR for the creation of transport tunnels within an autonomous system?

Question13: Click the exhibit.

Based on the VPRN aggregate route configuration, which routes are advertised to CE2?

Question14: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). Which of the following about route distribution is FALSE?

Question15: Click the exhibit.

Routers RR1 and RR2 are configured as route reflectors. For the inter-AS model C VPRN, which of the following about the BGP sessions established between the routers is TRUE?

Question16: Click the exhibit.

For the Carrier Supporting Carrier (CSC) VPRN, which routes are advertised from CSC-CE1 toPE1?

Question17: Which of the following protocols does the Alcatel-Lucent 7750 SR support to signal VPRN service labels?

Question18: Click the exhibit.

The headquarter sites of VPRN 10 and VPRN 20 are part of an extranet VPRN. Which route targets should be exported under the VPRN 20 service on router R1?

Question19: Click the exhibit.

The policy shown is configured on an Alcatel-Lucent 7750 SR to implement an extranet VPRN between the main sites of two separate VPRNs. Route target "target:65100:2" is used for Customer 1 routes, and route target "target:65100:3" is used for Extranet routes. How should this policy be applied?

Question20: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured on an Alcatel-Lucent 7750 SR for a customer carrier offering VPRN services. Which of the following configuration steps is NOT required?

Question21: On a PE router, the VRF table for VPRN 10 contains: one local route, two BGP routes learned from a local CE. and three tunneled routes learned from a remote site. If we execute the command "configure service vprn 10 maximum-routes 2 log-only" on this PE router, how many routes are expected to be in the VRF?

Question22: Which of the following about an Alcatel-Lucent 7750 SR MP-BGP update is FALSE? Assume default behavior.

Question23: A CE hub and spoke VPRN has two spoke sites; which of the following would be the best option to implement this topology at the hub site PE?

Question24: Click the exhibit.

Which of the following about the inter-AS model A VPRN configuration on ASBR1 is TRUE?

Question25: Click the exhibit.

For the CE hub and spoke VPRN, which of the following is FALSE?

Question26: Click the exhibit.

Which of the following best describes the output?

Question27: An advantage of using BGP as the PE-CE protocol is that route policies are no longer required to control the exchange of routes from BGP to MP-BGP.

Question28: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured on an Alcatel-Lucent 7750 SR for a customer carrier who is an Internet Service Provider (ISP). Which of the following configuration steps is NOT required?

Question29: Based on the VPRN BGP decision process, which of the following routes is selected first?

Question30: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). If CE1 sends an IP packet to 192.60.100.1, which of the following is FALSE?

Question31: Click the exhibit.

For the inter-AS model A VPRN, which of the following is FALSE when CE2 sends an IP packet to
192.168.1.1?

Question32: Click the exhibit.

For the inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

Question33: Which of the following commands may be used on an Alcatel-Lucent 7750 SR to display a network exported locally to BGP on the originating router? (Choose two)

Question34: Click the exhibit.

Router R4 is an Alcatel-Lucent 7750 SR configured for the extranet VPRN network. Which CLI command is executed on router R4 to produce the displayed output?

Question35: Click the exhibit.

What is wrong with the VPRN configuration applied on this Alcatel-Lucent 7750 SR?

Question36: Choose the best answer to describe the result of the configuration of an Alcatel-Lucent 7750 SR shown below?

Question37: When would it be appropriate to use the as-override command?

Question38: Which of the following about the configuration of an inter-AS model C VPRN is FALSE?

Question39: Which of the following is NOT a viable option when implementing inter-AS VPRN?

Question40: Click the exhibit.

An extranet VPRN is configured on Alcatel-Lucent 7750 SRs. On which router(s) should the displayed configuration be applied?

Question41: Which command should be used on an Alcatel-Lucent 7750 SR acting as the PE, to view the table containing the BGP routes received from the remote sites?

Question42: Click the exhibit.

For the inter-AS model A VPRN. BGP is used as the PE-CE routing protocol. Which of the following statements about the control plane operation is TRUE?

Question43: Click the exhibit.

Community lists are configured for the PE hub and spoke VPRN. Which communities should be exported by the VPRN service on PE1?

Question44: A service provider core consists of 6 PE and 4 P routers. Assuming route reflection is not used, how many internal BGP sessions are required in the service provider network for a correct operation of VPRN services?

Question45: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is a BGP/MPLS service provider. Which of the following describes the routes present in PE1's global routing table?

Question46: Click the exhibit.

Internet access is provided to the Red VPRN (ID 10) via an Internet VRF (ID 500). For this configuration, which communities must be imported on the Red and Internet VRFs?

Question47: Click the exhibit.

PE3 learns Internet routes via its VRF interface to the Internet peering router and stores them in its Internet VRF. CE1 is connected to the Red VPN and requires Internet access via its Red VRF interface. Which of the following statements do not fulfill this requirement?

Question48: When does a router add a Route Target to a route?

Question49: Which of the following is not an available option for Route Distinguisher assignment?

Question50: What is the minimum number of Route Distinguishers required to implement an overlapping VPRN involving 5 different customers?

Question51: In a Carrier Supporting Carrier (CSC) VPRN, which of the following is NOT a benefit to the network provider?

Question52: Which of the following about a full mesh VPRN design is FALSE?

Question53: Which of the following about the configuration of BGP Site of Origin (SoO) is TRUE?

Question54: When using the AS-override method to prevent BGP loops in VPRNs, where should the "as-override" CLI command be configured?

Question55: Click the exhibit.

When configuring the double lookup functionality, which configuration forces the global routing table to be consulted for any packet matching the VPRN default route?

Question56: An SDP has been configured for a VPRN service using an existing MPLS LSP and the configuration shown below. Which of the statements below is true about the configuration on an Alcatel-Lucent 7750 SR?

Question57: Click the exhibit.

Based on the displayed configuration, which routes does PE3 place in the VPRN 10 routing table?

Question58: Which of the following best describes the goal of an Extranet VPRN?

Question59: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured on an Alcatel-Lucent 7750 SR for a customer carrier who is an Internet Service Provider (ISP). Which of the following configuration steps is NOT required?

Question60: Click the exhibit.

For the Inter-AS model B VPRN, which of the following about the inter-as-label output on ASBR1 is TRUE?

Question61: Which of the following about the configuration of VPRN Outbound Route Filtering (ORB on an Alcatel- Lucent 7750 SR is TRUE?

Question62: Which of the following about the maximum number of routes that can be accepted in a VRF for a VPRN service on the Alcatel-Lucent 7750 SR is FALSE?

Question63: Click the exhibit.

Which of the following best describes the output from the Alcatel-Lucent 7750 SR?

Question64: Which statement about assigning one Route Distinguisher per VPN is TRUE?

Question65: Click the exhibit.

Internet access using route leaking between the VRF and the global routing table is configured in the network. Which of the following is the correct output of route 192.168.50.1 in the global routing table of PE3?

Question66: Click the exhibit.

Which of the following commands produces the output for the inter-AS model B VPRN?

Question67: Click the exhibit.

Routers RR1 and RR2 are configured as route reflectors. For the inter-AS model C VPRN, which of the following about the VPN-IPv4 route advertisement is FALSE?

Question68: Which of the following is a benefit of a hub and spoke VPRN topology?

Question69: Click the exhibit.

The AS-override method is used to prevent BGP loops in the blue customer VPRN. Which statement about the configuration is TRUE?

Question70: Which of the following about a full mesh VPRN is FALSE?

Question71: If Route Reflector 1 (RR1) is used for Internet routes, and Route Reflector 2 (RR2) is used for VPN routes, which of the following is TRUE?

Question72: Click the exhibit.

For the Inter-AS model B VPRN, which of the route updates for prefix 192.168.1.0/27 is incorrect?

Question73: In a VPRN that uses MPLS transport tunnels, which of the following is NOT configured on the PE device?

Question74: For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?

Question75: Which of the following VPRN topologies must a customer implement to allow a given VRF to include routes from different VPRNs?

Question76: Which of the following statements best describes the output from an Alcatel-Lucent 7750 SR shown below?

Question77: What operation does a P device perform when it receives a labeled packet for a VPRN service?

Question78: When an Alcatel-Lucent 7750 SR receives a BGP update containing an AS-Path loop, what is the default action?

Question79: In a VPRN that uses MPLS transport tunnels, which of the following statements about P devices is TRUE?

Question80: AVPLS spoke SDP is terminated on a VPRN service. The remote side of the spoke SDP is operationally * Down' with a flag of ' Service MTU Mismatch'. Which command can you use on an Alcatel-Lucent 7750 SR to show the signaled operational VC-MTU?

Question81: Click the exhibit.

The CLI command "remove-private" is configured on PE1 to eliminate BGP loops in the VPRN. For the displayed route, what is the value of the AS-Path field?

Question82: Click the exhibit.

For the extranet VPRN and community lists shown, which of the following communities will be included in the export policy applied to VPRN 20 on router R2?

Question83: Based on the VPRN BGP decision process, which of the following routes is selected first?

Question84: Which of the following about inter-AS model B VPRN is FALSE?

Question85: Click the exhibit.

Which VPRN type produces the output shown on router R1?

Question86: Which of the following about inter-AS model C VPRN is FALSE?

Question87: What are the two main benefits of a hub and spoke VPRN design? (Choose two)

Question88: Click the exhibit.

When configuring a VPRN service on an Alcatel-Lucent 7750 SR, where should the policy be applied?

Question89: Click the exhibit.

How many route targets and route distinguishers are required to implement the extranet VPRN?

Question90: When a routing protocol is configured as the PE-CE protocol at one site of a customer VPRN, the same routing protocol must be configured as the PE-CE protocol at all other sites of the same customer VPRN.

Question91: Based on the VPRN BGP decision process, which of the following routes is selected first if the command
"PE1>config>service>vprn> bgp best-path-selection as-path-ignore" is executed?

Question92: Click the exhibit.

An Alcatel-Lucent 7750 SR is to be configured as a core router that supports VPRNs using LDP as the transport protocol. Which of the following best describes this configuration?

Question93: Click the exhibit.

For the inter-AS model B VPRN, which of the following is TRUE when CE2 sends an IP packet to
192.168.1.1?

Question94: A provider core consists of 4 PE and 2 P routers. A fully meshed VPRN service is configured on all 4 PEs, and MPLS LSP-based SDPs are used for the service configuration. How many SDPs must be bound to the VPRN service on each PE?

Question95: Click the exhibit.

The headquarter sites of VPRN 10 and VPRN 20 are part of an extranet VPRN. Which route targets should be exported under the VPRN 20 service on router R1?

Question96: Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is a BGP/MPLS service provider. If CE1 sends an IP packet to 192.168.200.1, which of the following is FALSE?

Question97: Which of the following about Carrier Supporting Carrier (CSC) VPRN is FALSE?

Question98: Which of the following about VPRN Outbound Route Filtering (ORF) is FALSE?

Question99: How are local CE routes associated with the appropriate VRF at the PE?

Question100: For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is TRUE?

Question101: Click the exhibit.

For the inter-AS model C VPRN, how many labels does PE1 push on a data packet received from CE1 and destined to CE2?

Question102: The policies shown below from the configuration of an Alcatel-Lucent 7750 SR have been created to implement an Extranet VPRN between the main sites of two separate VPRNs. How should these policies be applied?

Question103: Which of the following about the Route Target is TRUE?

Question104: Which of the following about inter-AS model AVPRN is TRUE?

Question105: Click the exhibit.

Assuming that the as-override command is used, what is the most likely location of prefix 10.1.2.0/24?

Question106: Which of the following about BGP loops in a VPRN environment is FALSE?

Question107: Which of the following describes the goal of an Extranet VPRN?

Question108: Which of the following about inter-AS model B VPRN is FALSE?

Question109: Which of the following about eiBGP Load Balancing is FALSE?

Question110: Click the exhibit.

For the PE hub and spoke VPRN, on which PE(s) should the VPRN service command target export target:
65100:1 import target: 65100: 2 " be configured?