NEW QUESTION 1
Which Cisco IOS XR command should be used in order to enable LDP on all interfaces for which the IGP protocol is enabled?

• A. RP/0/0/CPU0:R1(config-ospf)#mpls ldp auto-config
• B. RP/0/0/CPU0:R1(config-ospf)#mpls ldp interface all enable
• C. RP/0/0/CPU0:R1(config-ospf)#enable all
• D. RP/0/0/CPU0:R1(config-ldp)#enable all

Answer: A

NEW QUESTION 2
Which three statements are correct regarding a Cisco MPLS TE? (Choose three.)

• A. A Cisco MPLS TE tunnel maps onto an LSP path.
• B. Tunnels are bidrectional by default.
• C. Packets that are mapped into a Cisco MPLS TE tunnel will have two labels, with the top label indicating what the tail-end router should do with the packet.
• D. A tunnel that is created with a priority of 0 can pre-empt an existing tunnel with a priority of 7.
• E. CBR takes into account link resource and traffic tunnel attributes.
• F. RSVP is used between customer routers.

Answer: ADE

NEW QUESTION 3
An engineer is deploying CB-WRED across the entire core network to enforce the previously deployed CBWFQ and decides to change the WRED default to make it work with DSCP. Which policy-map command enables this new profile on regular Cisco IOS routers?

• A. random-detect
• B. random-detect dscp value
• C. random-detect dscp based
• D. random-detect precedence value

Answer: C

NEW QUESTION 4
You are tasked to enable LDP on many of the interfaces on the Cisco CRS-3 router, and because there are many interfaces that need to have LDP enabled, you mistakenly did not enable LDP on all the required interfaces. To prevent this issue from happening again in the future, what could you do the next time you need to enable LDP on many interfaces?

• A. use the mpls ldp auto-config command under the IGP routing process
• B. use the mpls ldp sync command under the IGP routing process
• C. use the interface all command under the MPLS LDP process
• D. use the discovery command under the MPLS LDP process

Answer: A

NEW QUESTION 5
DRAG DROP

Answer:

Explanation: RSVP PATH Message --- sent from the tunnel headend to the tunnel tailend
---- carried the MPLS label requests
RSVP RESV Message—Sent from the tunnel tailend to the tunnel headend
--- carries the MPLS lables
RSVP PATH Message --- sent from the tunnel head end to the tunnel tail end ---- carried the MPLS label requests
RSVP RESV Message--Sent from the tunnel tail end to the tunnel head end --- carries the MPLS labels

NEW QUESTION 6
A company asks an engineer to provide an explanation for implementing MPLS DiffServ- TE services. Which option is a DiffServ-TE fundamental concept that should be highlighted?

• A. expedited forwarding
• B. assured forwarding
• C. class of service
• D. class types
• E. fast reroute

Answer: D

NEW QUESTION 7
Which configuration fulfills the requirement of configuring LDP with Cisco Nonstop Forwarding on a router with 5 minutes time to hold the forwarding table information and 1 minute retry timer value for an LDP connection?

• A. mpls ldp graceful-restartgraceful-restart forwarding state-holdtime 5 graceful-restart reconnect-timeout 1 interface GigabitEthernet0/0/0/0!
• B. mpls ldp graceful-restartgraceful-restart forwarding state-holdtime 300 graceful-restart reconnect-timeout 60 interface GigabitEthernet0/0/0/0!
• C. mpls ldp nsrgraceful-restartgraceful-restart forwarding state-holdtime 300 graceful-restart reconnect-timeout 60 interface GigabitEthernet0/0/0/0!
• D. mpls ldp nsrgraceful-restartgraceful-restart forwarding state-holdtime 5 graceful-restart reconnect-timeout 1 interface GigabitEthernet0/0/0/0!

Answer: B

NEW QUESTION 8
On the Cisco IOS XR, when using the match protocol command within a class-map to classify traffic, you noticed that the match protocol option on the Cisco IOS XR shows much fewer protocol options than on the Cisco IOS or IOS XE, like there is no option such as the match protocol yahoo-messenger command on the Cisco IOS XR. Why is this?

• A. because the Cisco IOS XR router does not have the correct software packages installed
• B. because when defining the class-map, the class-map type should be set to type inspect: class-map type inspect class-map-name command
• C. because NBAR is not supported on the Cisco IOS XR
• D. because flexible packet matching has not been enabled on the Cisco IOS XR router

Answer: C

NEW QUESTION 9
With unmanaged CE routers, at which point in the service provider network is the QoS trust boundary, and what is required at the trust boundary?

• A. between the CE and PE router and mapping of the customer traffic classes into the service provider traffic classes at the PE router ingress
• B. between the CE and PE router and trusting the QoS markings from the CE router and applying the required QoS mechanisms based on the customer QoS markings
• C. between the PE and the P router and mapping of the customer traffic classes into the service provider traffic classes at the P router ingress
• D. between the PE and P router and trusting the QoS markings from the CE router and applying the required QoS mechanisms based on the customer QoS markings
• E. between the customer network and the CE router ingress and applying the required egress QoS policy on the CE router

Answer: A

NEW QUESTION 10
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)

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: C

NEW QUESTION 11
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)

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: C

NEW QUESTION 12
An engineer looks at packet captures and sees that the MPLS header field of a packet indicates a bottom of stack field of 0. What can the engineer conclude from this information?

• A. The packet is an AToM packet
• B. One label is on the packet
• C. At least one more MPLS label is on the packet
• D. No labels are on the packet

Answer: C

NEW QUESTION 13
The regional operation center deploys a Cisco MPLS TE tunnel over the company's core network. The Cisco MPLS TE tunnel is up and no error is detected, but no traffic is traversing the tunnel. Which two issues are possible causes? (Choose two.)

• A. The provider edge router is not performing the correct redistribution.
• B. The interior gateway protocol has no knowledge of the Cisco MPLS TE tunnel.
• C. No static route has been defined to route data traffic over the Cisco MPLS TE tunnel.
• D. The customer edge router is injecting rogue IPv4 prefixes in the provider edge routing table.
• E. The end-to-end label switched path has not been established.

Answer: BC

NEW QUESTION 14
Which two features are used to provide Cisco MPLS TE node and link protection? (Choose two.)

• A. autoroute
• B. fast reroute
• C. backup tunnels
• D. BFD

Answer: BC

NEW QUESTION 15
The network architecture team is proposing to enable Cisco MPLS TE over the entire
service provider core network. Which two options are benefits of Cisco MPLS TE that affect their decision? (Choose two.)

• A. Cisco MPLS TE optimizes network resources.
• B. Cisco MPLS TE data flows independent from the underlying IGP.
• C. Cisco MPLS TE increases the data forwarding rate.
• D. Cisco MPLS TE tunneling does not require maintenance.
• E. Cisco MPLS TE offers network resource reservation, which removes any need for QoS MQC policies.

Answer: AB

NEW QUESTION 16
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