Assessment Test

1.Which IOS command is necessary to globally configure MPLS on a Cisco IOS device?

A.ip mpls

B.mpls ip

C.mpls advertise labels

D.tag-switching advertise labels

2.Overlay VPNs replace ___________.

A.Full-mesh topologies

B.MPLS VPNs

C.Point-to-point connections

D.Simple VPNs

3.Which of the following OSPF LSA types is generated by an ASBR?

A.1 or 2

B.3

C.4

D.5

4.MP-BGP is typically used between which routers?

A.P routers

B.CE routers

C.PE routers

D.None of the above

xxxvi Assessment Test

5.E-BGP neighbors must be ___________.

A.Redistributed

B.Activated

C.Upgraded

D.None of the above

6.The LIB is in the ___________.

A.Control plane

B.Forwarding plane

C.Data plane

D.None of the above

7.Which of the following commands enables VC merge on an ATM-LSR?

A.mpls ldp atm vc-merge

B.mpls ip atm vc-merge

C.mpls ip atm vc merge

D.mpls ip atm vc merge

8.After you associate an interface with a VRF, it ___________.

A.Shows up in the global routing table

B.Loses its IP address

C.Must be activated

D.None of the above

9.VRF names are ___________.

A.Not case-sensitive

B.Locally significant

C.Global in nature

D.None of the above

Assessment Test xxxvii

10.With an MP-BGP backbone, PE routers are viewed as ___________

routers by CE OSPF routers.

A.ABR

B.ASBR

C.Internal

D.External

11.What command would you use to display the label bindings on a Cisco IOS device?

A.show mpls ip

B.show mpls forwarding-table

C.show tag forwarding-table

D.show mpls labels

12.Cell-mode MPLS ___________ the TLV.

A.Increments

B.Decrements

C.None of the above

13.In the following code snippet, what is the maximum number of routes allowed in the VRF?

ip vrf vpn-X rd 1000:1

route-target both 1000:1 maximum-routes 20 50

A.1000:1

B.20

C.50

D.None of the above

xxxviii Assessment Test

14.In a peer-to-peer VPN, the ___________ becomes responsible for routing protocol convergence.

A.Customer

B.Service provider

C.Edge-LSR

D.PE

15.Customer routers ___________ MPLS functionality.

A.Do need

B.Do not need

C.None of the above

16.A GRE tunnel is a ___________ VPN technology.

A.Layer 1

B.Layer 2

C.Layer 3

D.None of the above

17.An LSC communicates with an ATM-LSR on which of the following virtual circuits?

A.0/1

B.0/6

C.0/32

D.0/4096

18.For static VRF routes, the next-hop IP address is ___________.

A.Mandatory

B.Optional

C.None of the above

Assessment Test xxxix

19.The FIB is built by ___________.

A.TDP

B.LDP

C.CEF

D.LFIB

20.PE routers support a total of ___________ routing processes.

A.16

B.32

C.48

D.64

21.In an MPLS-enabled service provider core, P routers need which of the following?

A.An IGP only

B.An IGP and BGP

C.BGP only

D.BGP and OSPF

22.Which of the following commands is used to configure an export route target?

A.route-target both number

B.route-target export number

C.route-target number

D.route target both number

23.Which of the following are valid peer-to-peer VPN methods? (Choose all that apply.)

A.Dedicated router

B.Full-mesh

C.Partial-mesh

D.Shared router

xl Assessment Test

24.Which command do you use to begin the configuration of MP-BGP?

A.rd #.#

B.ip vrf vpn_name

C.address-family vpnv4

D.address-family ipvrf

25.Which protocol does the IETF version of Cisco’s tag switching use to exchange labels between neighbors?

A.CDP

B.LDP

C.TDP

D.MDP

26.When configuring frame-mode MPLS on an ATM edge-LSR, which of the following command options is used?

A.tag-switching

B.mpls

C.point-to-point

D.cell-mode

27.Which of the following overlay VPN topologies is typically used by financial organizations?

A.Full-mesh

B.Partial-mesh

C.Hub-and-spoke

D.None of the above

28.Which of the following BGP communities is required for MPLS VPNs?

A.Standard

B.Extended

C.No communities

Assessment Test xli

29.Which of the following commands is used to view the global PE routing table?

A.show ip route

B.show ip route vrf vpn_name

C.show ip route vpnv4 vpn_name

D.show ip route vpn_name

30.A route from another AS is advertised as an OSPF LSA Type

___________.

A.1 or 2

B.3

C.4

D.5