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Exam Code : 4A0-M01
Exam Name : Alcatel-Lucent IP/MPLS Mobile Backhaul Transport
Vendor Name :
"Alcatel-Lucent"

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Alcatel-Lucent IP/MPLS Mobile Backhaul Transport

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Question: 139

Click on the exhibit.

Each numbered item, 1, 2, 3, and 4, represents a message exchanged between an IEEE 1588v2/Precision Time Protocol (PTP) v2 master and slave. With which message does the master pass its t1 timestamp to the slave clock at item 2?

1. Announce

2. Delay_request

3. Delay_response

4. Sync

Answer: D

Question: 140

Click on the exhibit.

You wish to configure a preferred and a secondary static route on CSA1. targeting the MLS1 system interface. The preferred route must forward packets over the preferred route path as shown in the diagram. Given the following:

• BFD must be enabled on the preferred route

• BFD is configured on the interfaces

• The BFD interface transmit and receiver timers are 500 ms

• The BFD interface multiplier is 3

• The CSA1 router must choose the preferred route in normal operations

  Which command example correctly configures the PREFERRED static route on CSA1?

  
  

  1. configure router static-route 192 0.2.0/32 next-hop 192.0.2.0 bfd-enable

  2. configure router static-route 192.0.2.0/32 next-hop 192.0.2.5 bfd-enable

  3. configure router static-route 192.0.2.5/30 next-hop 192.0.2.5 500 receive 500 multiplier 3

  4. configure router static-route 192.0.2.0/32 next-hop 192.0.2.13 bfd-enable precedence 10

  
  

  
  
  Answer: B

  
  

  
  Question: 141

  Click on the exhibit.

  
  

  
  

  Given the configuration shown, and the following condition:

• The next hop interface on the preferred path to prefix 192.0.2.0/32 failed

• Label Distribution Protocol (LDP) is enabled on the interfaces

  How long does the router wait before it moves traffic to the secondary route for this prefix?

  
  

  1. 900 ms

  2. 1.5 seconds

  3. 45 seconds

  4. 60 seconds

  
  

  
  
  Answer: A

  
  

  
  Question: 142

  Click on the exhibit

  
  

  
  

  Given the diagram and the following information:

• Virtual Private Routed Network (VPRN) 5 spans the routers Point of Concentration (POC) 3-1 and 3-2 and the Multilevel Switch (MLS) routers MLS1 and MLS2

• Multiprotocol Border Gateway Protocol (MP-BGP) is configured and operational

• Pseudowire status is signaled, as shown, on the ePipe/VPRN spoke Service Distribution Points (SDPs)

  
  

  What might you configure on the services illustrated to hold down the primary VPRN NodeB loopback interface static route in case of an intermittent or rapid spoke SDP failure and recovery?

  
  

  1. Set port hold down timers on the CSA to POC3-1 link

  2. Configure Label Distribution Protocol (LDP) Sync on the VPRN static routes

  3. Enable BGP next-hop tracking in the VPRN BGP peer groups

  4. SetareverttimervalueontheCSAePipe50endpoint

  
  

  
  
  Answer: A

  
  

  
  Question: 143

  Which three are components found in the backhaul transport Mobile Telephone Switching Office (MTSO) functional area? (Choose 3)

  
  

  1. 2G Base Station Transceiver (BTS)

  2. LTE Radio Network Controller (RNC)

  3. EV-DO Radio Network Controller (RNC)

  4. MSP Aggregation Gateway (MG)

  5. GSM Base Station Controller (BSC)

  6. Ethernet over SONET (EoS) UNI

  
  

  
  
  Answer: C, D, E

  
  

  
  Question: 144

  In a Mobile Service Provider (MSP) network, which device aggregates traffic for delivery to the control elements?

  
  

  1. BTP Aggregation Gateway (BG)

  2. BTP Termination Device (BT)

  3. MSP Aggregation Gateway (MG)

  4. MSP Termination Device (MT)

  
  

  
  
  Answer: C

  
  

  
  Question: 145

  Click on the exhibit.

  
  

  
  

  Given the topology shown:

  Which Border Gateway Protocol (BGP) feature must be configured on MLS1 and MLS2 to allow them to act as iBGP route reflectors?

  
  

  1. BGP peer tracking

  2. Cluster IDs

  3. BGP Route Reflection

  4. Autonomous System (AS) Number

  
  

  
  
  Answer: B

  
  

  
  Question: 146

  Which statement describes an instance where a control word would be required in an aPipe service?

  
  

  1. ATM cell mode is used to map multiple virtual circuits into a single aPipe service

  2. The aPipe service transports concatenated cells from an entire virtual path

  3. The service carries just the cell payload and Equal Cost Multipath (ECMP) is used in the transport

  4. A cell mode service must map different ATM virtual circuits to a service based on Quality of Service (QoS) profiles

  
  

  
  
  Answer: C

  
  

  
  Question: 147

  The 3rd Generation Partnership Project (3GPP) wireless standards cover which three technologies? (Choose three.)

  
  

  1. 2G Global Systems for Mobile (GSM)

  2. 2G Code Division Multiple Access (CDMA)

  3. 3G Universal Mobile Telecommunications System (UMTS)

  4. 3G Evolution-Data Optimized (EV-DO)

  5. 4G Long Term Evolution (LTE)

  6. 3G High Rate Packet Data (HRPD)

  
  

  
  
  Answer: A, C, E

  
  

  
  Question: 148

  Click on the exhibit.

  
  

  
  

  Given the following:

• On the OC-3 port, each provisioned channel group contains all available timeslots. The command result illustrates which OC-3 port characteristic?

1. On STS1-3,the second DS1 channel group in the fourth VTG is set for atm encapsulation

2. On STS1-3, the second E1 channelgroup in the fourth VTG uses onlythe first 24 timeslots

3. On STS1 -3, the second DS1 channel group i n the fourth TUG-2 is set for 32 timeslots

4. On STS1-3, the second VT2 in the fourth TUG-2 is set for atm encapsulation

Answer: A

Question: 149

Click on the exhibit.

Given the topology shown:

Which timing solution would deliver time of day information to the NodeB connected lo the ATM/IMA link labeled 4 in the diagram?

1. TDM Line Timing

2. Adaptive clock recovery (ACR)

3. Synchronous Ethernet

4. Global Positioning System (GPS)

Answer: D

Question: 150

Click on the exhibit.

Which condition would cause the bundle Oper Status: shown?

1. The bundle local and remote peer endpoint discriminators are mismatched

2. The bundle remote peer Layer 3 (L3) interface is down

3. The local and remote bundle MRRU values are mismatched

4. The ML-PPP bundle member links have dropped below the minimum threshold

Answer: B

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