Ensurepass

QUESTION 31

Which three network services can be implemented using MPLS within the service provider IP NGN core? (Choose three.)

 

A.

Layer 2 VPNs

B.

Layer 3 VPNs

C.

traffic engineering

D.

IntServ traffic engineering tunnels

E.

encrypted LSPs

 

Correct Answer: ABC

 

 

QUESTION 32

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

 

Correct Answer: A

 

 

QUESTION 33

When defining an explicit MPLS TE tunnel path, which two command options are available under the explicit-path configuration mode? (Choose two.)

 

A.

exclude-address

B.

include-address

C.

next-address

D.

dynamic-address

 

Correct Answer: AC

 

 

QUESTION 34

Which QoS mechanism is used for congestion avoidance?

 

A.

LLQ

B.

CBWFQ

C.

WRED

D.

LFI

E.

traffic policing

 

Correct Answer: C

 

 

QUESTION 35

What are the four fields inside the MPLS shim header? (Choose four.)

 

A.

EXP

B.

TTL

C.

Version

D.

S

E.

Length

F.

Label

G.

Type

H.

FCS

 

Correct Answer: ABDF

 

 

QUESTION 36

Referring to the Cisco IOS XR configuration exhibit, which labels will be advertised by the router with this configuration?

 

clip_image002

 

A.

Only the label for 10.1.1.1/32 will be advertised to all the LDP peers.

B.

Labels for all prefixes will be advertised to the 10.1.1.1 LDP peer.

C.

Labels for all prefixes will be advertised to all the LDP peers.

D.

No labels will be advertised to any LDP peers.

 

Correct Answer: A

 

QUESTION 37

Refer to the exhibit. Based on the raw format of an MPLS header captured by a traffic analyzer, what is the value of the MPLS EXP field?

 

clip_image004

 

A.

1

B.

255

C.

5

D.

29

 

Correct Answer: C

 

 

QUESTION 38

Which four options are methods by which labels can be assigned in the label stack to an IP prefix? (Choose four.)

 

A.

LDP

B.

CEF

C.

BGP

D.

RSVP

E.

static

F.

IGP

G.

route recursion

H.

manual tagging

 

Correct Answer: ACDG

 

 

QUESTION 39

Which three fields must be the same in an IPv6 header to consider different packets on the same flow? (Choose three.)

 

A.

source port

B.

destination address

C.

destination port

D.

source address

E.

flow label

F.

transport protocol type

 

Correct Answer: BDE

 

 

 

 

QUESTION 40

Which option is the appropriate method for CBWFQ WRED implementation in Cisco IOS XR?

 

A.

configure

policy-map POLICY_1

class CLASS1

random-detect default

commit

B.

configure

policy-map POLICY_1

class CLASS1< /font>

wred default

commit

C.

configure

interface pos 0/0/0/0

random-detect default

commit

D.

configure

policy-map POLICY_1

class CLASS1

weighted random-detect default

commit

 

Correct Answer: A

 

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