Pass Your Exam On First Try Real Cisco 642-889 Exam Braindumps (41-50)

QUESTION 41
When troubleshooting EoMPLS configuration problems, which three parameters must match between the two ends of the pseudowire configurations? (Choose three.)

A.    control word usage
B.    MTU size
C.    pseudowire ID
D.    Xconnect group name
E.    EFP subinterface number

Answer: ABC

QUESTION 42
Which Layer 2 protocol parameters can be carried inside the control word when implementing AToM service?

A.    PW ID
B.    Frame Relay FECN, BECN, and DE bits
C.    encapsulation type
D.    VC type

Answer: B

QUESTION 43
When implementing VPLS on Cisco routers, which data structure resembles a virtual switch and is used for learning the MAC addresses?

A.    VRF
B.    VFI
C.    SVI
D.    BVI

Answer: B

QUESTION 44
In hierarchical VPLS implementations, which two access architectures can be used between the UPE and NPE? (Choose two.)

A.    EoMPLS
B.    MP-BGP
C.    Frame Relay
D.    802.1ad

Answer: AD

QUESTION 45
Which two methods can be used for VPLS PW signaling? (Choose two.)

A.    static
B.    BGP
C.    IGP
D.    LDP
E.    RSVP

Answer: BD

QUESTION 46
When implementing nonhierarchical VPLS with eight PE routers, how many total PWs will be required between the PE routers?

A.    8
B.    16
C.    28
D.    32
E.    64

Answer: C

QUESTION 47
VPWS/EoMPLS offers which type of Ethernet services as defined by the MEF?

A.    E-Tree
B.    E-LAN
C.    E-Line
D.    E-Interworking

Answer: C

QUESTION 48
When using the Cisco EVC software infrastructure, a double-tagged frame with a customer VLAN of 10 and a service provider VLAN of 150 will be best matched by which encapsulation configuration?

A.    encapsulation dot1q 10 second-dot1q any
B.    encapsulation dot1q 10 second-dot1q 150
C.    encapsulation dot1q 10 second-dot1q 50-200
D.    encapsulation dot1q 10
E.    encapsulation dot1q 150

Answer: B

QUESTION 49
When implementing H-VPLS with QinQ access on Cisco Metro Ethernet switches, which two commands enable the QinQ tagging? (Choose two.)

A.    encapsulation dot1q {customer-vlan} second-tag {sp-vlan}
B.    encapsulation dot1q {sp-vlan} second-tag {customer-vlan}
C.    switchport mode dot1q-tunnel
D.    switchport mode trunk
E.    switchport access vlan {sp-vlan}
F.    switchport access vlan {customer-vlan}

Answer: CE

QUESTION 50
Implementing H-VPLS instead of VPLS reduces which requirement?

A.    having a full mesh of PWs between all the PE routers in the service provider MPLS core
B.    having a full mesh of PWs between all the UPE routers
C.    having to implement QinQ tagging between the UPE and the NPE
D.    having to implement MPLS LDP between the UPE and the NPE
E.    the overhead of using BGP or LDP autodiscovery

Answer: A

Pass Your Exam On First Try Real Cisco 642-889 Exam Braindumps

Welcome To Visit PassLeader