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QUESTION 161
Which configuration set enables outbound label filtering so that only peer 192.168.10.1 receives label advertisements in an MPLS environment?

A.    
B.    
C.    
D.    

Answer: C

QUESTION 162
Which high-availability feature does not require communication with other peers?

A.    rLFA
B.    MPLS TE FRR
C.    Nonstop Routing
D.    NSF

Answer: A

QUESTION 163
Which driver uses an IntServ QoS model in an MPLS TE enabled service provider network?

A.    DSCP, which requires signaling across the provider network
B.    RSVP, which enables bandwidth guarantees across a provider network
C.    RSVP, which enables per-hop behavior across a provider network
D.    DSCP, which enables bandwidth guarantees across a provider network

Answer: B

QUESTION 164
Refer to the exhibit. MPLS TE Tunnel 138 has a headend R1 and a tailend R4, and uses path R1-R2-R4 as the primary LSP. The path R1-R2-R3-R4 should be implemented as a backup LSP in case the R2-R4 link fails. To which interface should the appropriate configuration be applied to accomplish this?

A.    
B.    
C.    
D.    

Answer: C

QUESTION 165
What is the function of MPLS FRR?

A.    automatically repairs LDP adjacency issues for MPLS TE tunnel endpoints
B.    automatically updates BGP prefixes during link failures
C.    automatically redirects MPLS TE traffic away from degraded links
D.    routes traffic onto a backup MPLS TE tunnel during link failures

Answer: D

QUESTION 166
An engineer must configure a policy on a Cisco IOS XE router that achieves the following:

Traffic 2 Mbps or less is transmitted
Traffic between 2 Mbps and 3 Mbps is marked with IP Precedence 4
Traffic that exceeds 3 Mbps is dropped

Which configuration achieves this policy?

A.    
B.    
C.    
D.    

Answer: C

QUESTION 167
Refer to the exhibit. You are about to implement security features, including this configuration, within the MPLS network of a large MPLS service provider.
How does the router distribute the labels to its neighbors?

A.    All network 10.100.0.0/24 labels are sent to all TDP neighbors
B.    All network 10.100.0.0/16 labels are sent to all LDP neighbors
C.    All network 10.100.0.0/24 labels are sent to all LDP neighbors
D.    All network 10.100.0.0/24 labels are sent to all LDP and TDP neighbors

Answer: C

QUESTION 168
Which feature should you configure to enable routers to maintain MPLS label information despite link flaps on an interface?

A.    Targeted Adjacency
B.    IGP Synchronization
C.    MPLS LDP Session Protection
D.    NSR

Answer: C

QUESTION 169
Which option shows how a network engineer implements QPPB marking of incoming traffic on a router that is connected to a VoIP SP (AS62000, BGP community 60000:1) and to a data services service provider (AS61000, BGP community 61000:1) on Cisco IOS XE?

A.    
B.    
C.    
D.    

Answer: C

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QUESTION 151
Which two options are true regarding the Pipe and Short Pipe MPLS tunneling models? (Choose two.)

A.    In Short Pipe mode QoS is done on the PE-to-CE link based on the customer’s PHB markings
B.    In Pipe mode QoS is done on the PE-to-CE link based on the service provider’s PHB markings
C.    In Pipe mode QoS is done on the PE-to-CE link based on the customer’s PHB markings
D.    In Short Pipe mode QoS is done on the PE-to-CE link based on the service provider’s PHB markings
E.    Short Pipe mode does not need MPLS usage, but Pipe mode does

Answer: AB

QUESTION 152
Refer to the exhibit. What is the available reservable bandwidth for P6 after successful establishment of Tunnel 1?

A.    490 Kbps
B.    500 Kbps
C.    490 Mbps
D.    500 Mbps

Answer: D

QUESTION 153
How is bandwidth recalculated when utilizing the automatic bandwidth adjustment feature for MPLS TE?

A.    The tunnel’s output average is periodically sampled and then the bandwidth is adjusted to the largest sample obtained during the period, or to the configured maximum
B.    The tunnel’s output is sampled and then the bandwidth is adjusted by a configured percentage until the configured maximum value is reached
C.    Ping is used to measure congestion and the bandwidth is adjusted by a configured percentage until the maximum value is reached
D.    Ping is used to measure congestion and the bandwidth is adjusted to either the minimum, average, or maximum configured bandwidth value

Answer: A

QUESTION 154
Which two advantages are reasons that service providers might deploy MPLS? (Choose two.)

A.    to avoid using IGP in the core
B.    to facilitate smooth migrations between legacy WAN technologies
C.    to reduce the throughput overhead of full IPv4/IPv6 headers when traversing the core
D.    to reduce the computational requirements that are placed on router CPUs
E.    to reduce configuration and feature requirements in the core

Answer: CD

QUESTION 155
In Cisco IOS, what must be configured to ensure that an MPLS TE tunnel becomes active?

A.    layer 3 addressing on the tunnel, to establish bidirectional communication over the tunnel
B.    the tunnel for autoroute, to ensure proper installation into the forwarding plane
C.    a path-option configuration, for either dynamic or explicit paths
D.    the tunnel with a minimum bandwidth value, to properly calculate CSPF

Answer: A

QUESTION 156
Which option shows how a class map is implemented that matches only packets originating from the network 10.0.0.0/8, which are not marked as VoIP on Cisco IOS XE?

A.   
B.    
C.    
D.    

Answer: B

QUESTION 157
An engineer is having a problem getting an operational 10 Gigabit link on a Cisco ASR 9000 series router. The service provider instructs the engineer to use an LR optic. The engineer must access the router remotely.
Which command should the engineer issue to determine that the correct optic has been installed?

A.    show controllers
B.    show module optics
C.    show ip interface
D.    show optics

Answer: A

QUESTION 158
Which message is sent through the desired LSP path by the headend router and is used to determine available resources?

A.    PATH
B.    TENT
C.    RSVP
D.    RESV

Answer: A

QUESTION 159
An engineer sets up QoS over MPLS networks. How many classes of traffic can one LSP support?

A.    as many as 8, because the EXP field is 3 bits
B.    as many as 3, because the EXP field is 3 bits
C.    as many as 64, because the DSCP field is 6 bits
D.    as many as 6, because the DSCP field is 6 bits

Answer: A

QUESTION 160
An engineer deployed a Cisco MPLS TE next-hop protection over a switched environment. While testing the link protection, an excessive IGP delay in the reconvergence time is seen.
Which action fixes this issue?

A.    Replace the existing link with a routed back-to back link
B.    Configure object tracking
C.    Set up more aggressive IGP timers
D.    Implements BFD on the link

Answer: B

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