EMT Practice Test

1. Question Content...

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Question1: Click on the exhibit.
Given the configuration shown:

Which statement correctly describes the port configuration shown?

Question2: Click on the exhibit.

Given the configuration shown and the following conditions:
* The external reference is offline
* Reference 1 receives Quality Level (QL) - EEC1
* Reference 2 receives QL - SSU-A
Which quality level will the SAR router advertise to its Synchronous Ethernet (SyncE) peers?

Question3: Click on the exhibit.
Given the topology and the Multiprotocol Label Switching (MPLS) Label Switch Path (LSP) and path
configurations shown:

You wish to protect the LSP POC3-1_POC3-2 with a manual bypass tunnel. Which statement correctly
describes the manual bypass tunnel configuration requirement for the ring topology shown?

Question4: Which statement correctly descnbes pseudowire switched Virtual Private Wire Service (VPWS) creation?

Question5: Which SAP port and identifier format is correct for use in an aPipe service configured for N=1 cell mode
operation?

Question6: Which statement correctly describes how the Versatile Services Module (VSM) cross-connects Layer 2
and Layer 3 services?

Question7: 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?

Question8: Click on the exhibit.

Given the show command results shown:
Which IEEE 1588v2/Precision Time Protocol (PTP) v2 parent clock value does the slave first consider
when choosing its master?

Question9: Which is a characteristic of the IEEE 802.3 Slow Protocol?

Question10: Which statement correctly describes an MSP Aggregation Gateway (MG) function?

Question11: Which statement describes the operation of the ITU-T Ethernet Synchronization Messaging Channel
(ESMC)?

Question12: How does a Multilink Point-to-Point (ML-PPP) endpoint indicate its desire to implement the Multilink
Protocol (MP)?

Question13: Click on the exhibit.

Given the diagram shown and the following information:
* CSA1 originates a redundant ePipe service
* The ePipe spoke Service Distribution Points (SDPs) terminate on Internet Enhanced Services (ES)
configured on each of the two remote PEs.
* The ePipe service Maximum Transmission Unit (MTU) is set to 1518
How must you configure the IES MTUs to ensure that the spoke SDPs become operational on all bound
services?

Question14: Which statement correctly describes Virtual Routing and Redundancy Protocol (VRRP) configuration?

Question15: Which SROS aPipe feature transports the entire cell payload and header for a single ATM Virtual Channel
(VC)?

Question16: Click on the exhibit.

Given the show command results shown and the following information:
* MLS1 interface L3_VLAN402 is the preferred Virtual Router ID (VRID) 1 master interface
* The master interface failed and later recovered
Why does the MLS2 interface L3_VLAN402 remain in the Master state?

Question17: As which clock type must an IEEE 1588v2 node operate in order to slave to the Primary Reference Clock
(PRC) and serve as a master to downstream nodes?

Question18: In the Alcatel-Lucent SROS, which command creates the OC-3 path's Administrative Unit (AU)-4 Virtual
Container (VC) capacity?

Question19: Click on the exhibit.

Given the configuration shown, and the following conditions:
* The 7705 Service Access Router (SAR) is a PTP master on domain 1
* It is configured for the ITU-T G.8265.1 profile
* ref1 is an Extended Superframe (ESF) DS1 and is qualified
* The DS1 source indicates in its SSM messages that it is synchronized to a Stratum 1 clock
* ref2 is a SyncE port and is qualified
Which Quality Level will the 7705 SAR master announce to its slave routers?

Question20: Click on the exhibit.

Given the configuration shown and the following information:
* The Virtual Private Routed Network (VPRN) service 2 interface "ipipe200" cross-connects the VPRN with
the IP Interworking Pipe (iPipe) service 200 SAP 1/1/8:200.
* The iPipe spoke-SDP 1:200 transports traffic to and from the Cell Site Aggregator (CSA) router
* The CSA hosts the far-end iPipe service on which a Multilink Point-to-Point (MLPPP) CE device SAP is
configured
What can you add to the VPRN 2 interface "ipipe200" configuration to ensure that the VPRN service
always knows the correct destination Media Access Control (MAC) address for the far-end CE device with
the IP address 192.51.100.26?

Question21: Which statement correctly describes the IEEE 1588v2 two-way synchronization operating mode?

Question22: Which statement describes a Management-Virtual Private LAN Service (mVPLS) characteristic?

Question23: Click on the exhibit

Given the configurations shown and the following information:
* Multilayer Switch (MLS) 1 and 2 host duplicate Virtual Private Routed Network (VPRN) services.
* Configured on the interfaces L3_VLAN402 is Virtual Router ID (VRID) 1
Your customer states that if the master interface fails and recovers, they want traffic to remain on the VRID
backup interface.
What must you change in the configuration shown to keep the VRID from moving traffic back to the
master?

Question24: Which statement is correct concerning spoke SDP use in point-to-point services?

Question25: 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?

Question26: Click on the exhibit.
Given the diagram shown:

Which statement correctly describes how the Switching Provider Edge (S-PE) handles Targeted Label
Distribution Protocol (T-LDP} messages sent on behalf of the ePipe 1 service?

Question27: Click on the exhibit.
Given the configuration shown:

Which statement correctly describes the port configuration shown?

Question28: As cells enter an aPipe service configured for vc-type atm-vcc, how does the ingress Provider Edge (PE)
router handle the cell header Virtual Path Identifier/Virtual Channel Identifier (VPI/VCI) values?

Question29: Which statement correctly describes the IEEE 1588v2 two-way synchronization operating mode?

Question30: Which SROS aPipe feature transports the entire cell payload and header for a single ATM Virtual Channel
(VC)?

Question31: Which statement correctly describes the Point-to-Point (PPP) Multilink Protocol (MP) negotiation process?

Question32: Which statement is true concerning aPipe ATM cell mode versus ATM Adaptation Layer (AAL) 5 Service
Data Unit (SDU) frame mode?

Question33: Which timing technique can deliver time of day and phase synchronization information to the base station
without concern for Packet Delay Variation (PDV)?

Question34: Which statement correctly describes a Versatile Service Module (VSM) Layer 2 and Layer 3 service cross-
connect's operation?

Question35: Click on the exhibit

Given the diagram shown, and the following information:
* Configured on CSA1 is a redundant ePipe service
* A Multichassis-Link Aggregation Group (MC-LAG) protects the CE access links
* The preferred spoke SDP has failed
After the failure, which status will the MLS2 router signal to CSA 1 on its return spoke SDP 2:1?

Question36: Which IEEE 1588v2 two-step clock message allows the slave to calculate a more accurate master-slave
offset value than is possible with a one-step clock?

Question37: Click on the exhibit.

Given the configuration shown and the following information:
- Each service packet transports eight frames
When used in a cPipe service, what is the payload size for the port configuration shown?

Question38: Which SAP port and identifier format is correct for use in a cPipe service configured for Structure Agnostic
over Packet (SAToP) operation?

Question39: 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?

Question40: A Synchronization Ethernet (SyncE)/Synchronization Status Message (SSM)-capable node is configured
to support the ITU-T G.781 SDH mode. Which SSM code indicates that the node has gone into holdover?

Question41: Which statement describes a Cell Site Aggregator (CSA) function?

Question42: Click on the exhibit.

Given the local Provider Edge (PE) router configuration shown and the following condition:
* All Service Access Points (SAPs) and spoke Service Distribution Points (SDPs) are operational
Which pseudowire status will the local PE router signal for the standby spoke SDP?

Question43: 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?

Question44: Which statement correctly describes redundant ePipe service SAP creation?

Question45: Click on the exhibit.

Given the show command results shown:
With what IEEE 1588v2/Precision Time Protocol (PTP) v2 message did the slave node set the Unicast
message rates used by the master?

Question46: Click on the exhibit.

Given the configuration shown and the following conditions:
* The external reference is offline
* Reference 1 receives Quality Level (QL) - EEC2
* Reference 2 receives QL - STU
Which quality level will the SAR router advertise to its Synchronous Ethernet (SyncE) peers?

Question47: Which statement correctly describes the IEEE 1588v2 two-way synchronization operating mode?

Question48: Which statement correctly describes TDM port configuration for use with Inverse Multiplexing over ATM
(IMA) bundles?

Question49: Click on the exhibit

Which statement correctly describes eNodeB-to-eNodeB X2 interface traffic flow in the Model 1 hub and
spoke architecture Long Term Evolution (LTE) service model shown?

Question50: An SROS router obtains its timing exclusively from its BITS input port. The router sets Quality Level (QL)
SONET Traceability Unknown (STU) on this Superframe (SF) framed DS1 BITS reference.
What must you configure on this master router to pass the best clock quality level to the downstream
Synchronous Ethernet (SyncE) slave nodes while maintaining traceability to the DS1 source?

Question51: Click on the exhibit

Given the configuration example shown:
The DS1 port shown will become a Structure Agnostic TDM over Packet (SAToP) Service Access Point
(SAP) access port.
What must be configured on the DS1 port to allow it to carry all 24 TDM timeslots as a stream of
consecutive octets?

Question52: Click on the exhibit.

Upon initial configuration and turn up, what does this show result indicate about the Multilink Point-to-Point
(ML-PPP) bundle's current state?

Question53: Click on the exhibit.
Given the local Provider Edge (PE) router show command result shown:

The local PE originates the redundant ePipe 1 that terminates on each of two remote PE routers. Both
pseudowires have the same precedence value. What does the spoke SDP 2:1 ingress status "0x20"
indicate?

Question54: Which statement describes a 3rd Generation Partnership Project (3GPP) provided service?

Question55: Click on the exhibit.
Given the show command and the result shown:

Which payload type does this service transport?

Question56: Click on the exhibit.
Given the show command results and the configuration shown:

Why did the head end router fail to protect the Label Switch Path (LSP) between POC3-1 and POC3-2 with
the configured manual bypass tunnel?

Question57: Click on the exhibit.
Given the local Provider Edge (PE) router show command result shown:

The local PE originates the redundant ePipe 10 that terminates on each of two remote PE routers.
Assuming both pseudowires have the same precedence value, how does the local router choose the
active pseudowire?

Question58: Click on the exhibit

Given the diagram shown and the following information:
* Configured on the CSA1 router is an ePipe with redundant spoke Service Distribution Points (SDPs)
* The spoke SDPs terminate on Internet Enhanced Services (IES) interfaces configured on each of the two
remote Provider Edge (PE) routers.
Which statement correctly describes how the remote PEs signal Maximum Transmission Unit (MTU)
values for the ePipe spoke terminations?

Question59: A Versatile Services Module (VSM) Cross Connect ID (CCID) can bind which service set?

Question60: A network element (NE) forwards external traffic through a Virtual Routing and Redundancy Protocol
(VRRP) protected gateway interface. If the master goes offline, how does the NE learn to forward traffic to
the new master interface?

Question61: Click on the exhibit.

Given the show result shown, and the following information:
* A switched ePipe Virtual Private Wire Service (VPWS) transits the Switching Provider Edge (S-PE) router
POC3-1
What condition might cause the spoke Service Distribution Point (SDP) 1 status shown?

Question62: Click on the exhibit.

Consider the topology and MLS1 configuration shown, and given the following conditions:
* MLS1 delivers the PRC traceable clock to the network
* Reference 1 receives Quality Level (QL) - PRS
* Reference 2 receives QL - DUS
* BITS sets QL-STU
Which quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?

Question63: Click on the exhibit.

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

Question64: Click on the exhibit.

Which field in the show command result indicates that the router MLS1 is configured as a Border Gateway
Protocol (BGP) route reflector?

Question65: 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)
In the exhibit, how does the signaled pseudowire status affect the VPRN 5 service?

Question66: A network element (NE) forwards external traffic through a Virtual Routing and Redundancy Protocol
(VRRP) protected gateway interface. If the master goes offline, how does the NE learn to forward traffic to
the new master interface?

Question67: Click on the exhibit.

You must configure Label Distribution Protocol (LDP)-sync on the CSA1-to-MLS1 preferred static route.
The route must forward packets over the preferred route path as show in the diagram. Given the following:
* Bidirectional Forwarding Detection (BFD) must be enabled on the preferred route
* BFD is configured on the interfaces
* The CSA1 router must choose the preferred route in normal operations
* LDP sync timers are configured on the interfaces
* LDP is enabled on the interfaces
Which command enables LDP sync on the CSA1 preferred static route targeting MLS1's system interface?

Question68: Click on the exhibit.
Given the show result shown:

Which example shows the proper format for a Service Access Point (SAP) configured within this service
context?

Question69: Given the following:
* A 3G base station connects to an aPipe service via an Inverse Multiplexing over ATM (IMA) bundle SAP
Which timing technique can deliver a frequency reference from the Cell Site Aggregator (CSA) router to
the base station?

Question70: Which SROS aPipe feature transports the entire cell payload and header for a single ATM Virtual Channel
(VC)?

Question71: Click on the exhibit

Which statement correctly describes the Model 1 hub and spoke architecture Long Term Evolution (LTE)
service model shown?

Question72: Click on the exhibit.

Given the diagram shown and the following information:
* Ethernet frames carrying payloads targeting the Base Transceiver Station (BTS) enter the iPipe through
the Virtual Private Routed Network (VPRN) cross connected interface.
How does the iPipe service process frames received on ingress to sap ccag-1 b:300?

Question73: Which IEEE 1588v2/Precision Time Prolocol (PTP) v2 message carries the master clock's characteristics
for Best Master Clock Algorithm (BMCA) use?

Question74: In the Alcatel-Lucent SROS, which payload type set in a SDH-framed OC-12 port creates individual E1
containers?

Question75: Which statement correctly describes Virtual Routing and Redundancy Protocol (VRRP) operation?

Question76: Click on the exhibit

Given the cell site router configuration shown:
The local Provider Edge (PE) router originates a redundant iPipe service terminated on each of two remote
PE routers.
Which statement correctly describes the iPipe service operation?

Question77: Click on the exhibit.

Consider the topology and MLS1 configuration shown, and given the following conditions:
* MLS1 delivers the PRC traceable clock to the network
* Reference 1 receives Quality Level (QL)- EEC-1
* Reference 2 receives QL - DNU
* BITS is operational
What quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?