CCIE SP Written Exam (Version 3.0)
Number: 350-029
Passing Score: 790
Time Limit: 120 min
File Version: 421Q+69
QUESTION 211
Which two statements about VPNv4 address are true? (Choose two.)
A. The VPNv4 address is 128 bits long with a 128-bit long subnet mask
B. The VPNv4 address consists of an RD and an IPv4 address.
C. The VPNv4 address is 96 bits long with a 64-bit long subnet mask.
D. The VPNv4 address is 128 bits long with a 64-bit long subnet mask.
E. The VPNv4 address consists of an RT and an IPv4 address.
F. The VPNv4 address is 96 bits long with a 32-bit long subnet mask
Correct Answer: BF
QUESTION 212
Which two statements about Layer 3 MPLS VPN are true? (Choose two.)
A. The virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE
routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTs.
B. Multiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 format.
C. A customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol (eBGP, RIPv2, EIGRP, OSPF) or a
static routing protocol (Static, Connected).
D. VPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP.
Correct Answer: AC
QUESTION 213
Which Cisco IOS command displays the export VPN route target value of a VRF?
A. show ip vrf all
B. show ip vrf route-targets all
C. show ip vrf summary
D. show ip vrf interfaces
E. show ip vrf detail
F. show ip vrf
Correct Answer: E
QUESTION 214
Refer to the exhibit.
Which IPv6 deployment feature is displayed?
A. MPLS 6PE
B. MPLS 6VPE
C. 6 to 4 Replay Service
D. native IPv6 over MPLS
E. 6 to 4 Tunnel
Correct Answer: B
QUESTION 215
Refer to the exhibit.
Which IPv6 deployment feature is displayed?
A. MPLS 6PE
B. MPLS 6VPE
C. 6 to 4 Replay Service
D. native IPv6 over MPLS
E. 6 to 4 Tunnel
Correct Answer: A
QUESTION 216
In which Cisco IOS configuration mode is the route distinguisher (RD) configured?
A. R1(config-route-at)#
B. R1(config-route-map)#
C. R1(config-it)#
D. R1(config-vrf)#
E. R1(config)#
F. R1(router)#
Correct Answer: D
QUESTION 217
Which three statements about the Route Distinguisher (RD) are true? (Choose three.)
A. The RD is a BGP extended community.
B. The RD prefix and a route target make the VPNv4 address unique.
C. RD, similar to the AS number, is assigned to a service provider by the Internet Assigned Numbers Authority (IANA).
D. The RD is an 8-byte field.
E. One customer may use different RDs for the same IPv4 route.
Correct Answer: BDE
QUESTION 218
Refer to the exhibit.
The service provider is an MPLS and IPv4 enabled network. Which two approaches can enable IPv6 tunneling between site A and site B over the backbone?
(Choose two.)
A. IPv6 customer premise (6CP) over MPLS
B. IPv6 VPN provider edge (6VPE) over MPLS
C. IPv6 virtual forwarding (6VF) over MPLS
D. IPv6 forwarding instance (6FI) over MPLS
E. IPv6 provider edge router (6PE) over MPLS
Correct Answer: BE
QUESTION 219
Which two requirements to deploy 6PE and 6VPE solutions are mandatory? (Choose two.)
A. MPLS is enabled on the core, distribution, and edge devices.
B. A triple stack is enabled on PE devices.
C. The network has at least six PE devices.
D. A dual stack is enabled on all the P and PE devices in a network.
Correct Answer: AD
QUESTION 220
Which three of these are major components of an MPLS VPN network? (Choose three)
A. LDP notification
B. L2TPv3 session
C. VPN route target communities
D. Multiprotocol BGP peering of PE routers
E. MPLS forwarding
Correct Answer: CDE
QUESTION 221
Which statement about VPNv6 addresses is true?
A. The VPNv6 address is a 96-bit route distinguisher and a 128-bit IPv6 address
B. The VPNv6 address is a 64-bit route distinguisher and a 128-bit IPv6 address
C. The VPNv6 address is a 64-bit route distinguisher and a 96-bit IPv6 address
D. The VPMv6 address is a 96-bit route distinguisher and a 96-bit IPv6 address
E. The VPNv6 address is a 128-bit route distinguisher and a 128-bit IPv6 address
Correct Answer: B
QUESTION 222
What is the encapsulation format of an MPLS Multicast VPN (MVPN) packet?
A. IP unicast in IP unicast
B. IP multicast in IP anycast
C. IP anycast in IP anycast
D. IP multicast in IP unicast
E. IP multicast in IP multicast
F. IP unicast in IP multicast
Correct Answer: E
QUESTION 223
Using more than one label on a single packet is required in what context?
A. MPLS TE
B. When CEF switching and Label switching is done
C. In all the above circumstances.
D. MPLS VPN
Correct Answer: D
QUESTION 224
In the Inter-AS VPN deployment shown in the diagram, what is the Next Hop address of MP-IBGP Update for CE4 network received at PE-R2?
A. ASBR-2 50.0.0.3
B. PE-R2 50.0.0.2
C. PE-R4 50.0.0.4
D. ASBR-1 50.0.0.1
A. ASBR-2 50.0.0.3
B. PE-R2 50.0.0.2
C. PE-R4 50.0.0.4
D. ASBR-1 50.0.0.1
Correct Answer: A
QUESTION 225
There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet label stack sequence (from outer to inner) for the VPN traffic on
this router?
A. VPN label, IGP label, TE label
B. TE label, IGP label, VPN label
C. IGP label, VPN label, TE label
D. TE label, VPN label, IGP label
E. IGP label, TE label, VPN label
Correct Answer: B
QUESTION 226
Which three statements about the route target (RT) are true? (Choose three.)
A. The RT is a BGP extended community.
B. The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
C. When a VPN route that is learned from a CE router is injected into BGP, one or more RTs are associated with it
D. The distribution of VPN routing information is controlled through the use of VPN RTs
E. When a VPN route that is learned from a CE router is injected into BGP, there is always one RT that is associated with it.
Correct Answer: ACD
QUESTION 227
In the context of MPLS, what is the correct action to be performed when an aggregate label is received?
A. It replaces the bottom label in the MPLS label stack with a VPN label and propagates
B. It replaces the top label in the MPLS label stack with a VPN label and propagates
C. It adds the VPN label into the top label in the MPLS label stack
D. It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
Correct Answer: D
QUESTION 228
Which two statements are correct with regard to route distinguisher as defined in RFC 4364 AKA IP-VPN (MPLS-VPN)? (Choose two.)
A. The configuration to define Route-Distinguisher is ip vrf CNT rd 1:1
B. A route distinguisher can be imported and exported to and from a VRF
C. Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm.
D. Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.
Correct Answer: AD
QUESTION 229
In Mvpn how many unicast gre are supported ?
A. 50
B. 1500
C. 500
D. 2000
Correct Answer: C
QUESTION 230
Which two implementations are standard Virtual Private LAN Service (VPLS) implementations that are supported by the IETF? (Choose two)
A. VPLS uses LDP for signaling.
B. VPLS uses BGP for autodiscovery and signaling.
C. VPLS uses extended IS-IS for signaling
D. VPLS uses OSPF version 3 for auto discovery and signaling
E. VPLS uses spanning tree for signaling
Correct Answer: AB
QUESTION 231
Which three things are the building blocks of the Cisco VPLS architecture? (Choose three)
A. VLAN Trunk Protocol (VTP)
B. State Synchronization Protocol (SSP)
C. L2VPN
D. Ethernet Virtual Switch Interface (VSI)
E. Label Distribution Protocol (LDP)
Correct Answer: CDE
QUESTION 232
What is the data encapsulation method for the VPLS virtual circuit (VC)?
A. MAC over MPLS
B. L2TPV3
C. 802.1 QinQ
D. Ethernet over MPLS
E. GRE
Correct Answer: D
QUESTION 233
With VPLS, which protocol is used for label exchange and PW signalling?
A. MP-BGP
B. LDP
C. BGP
D. MTP
E. Directed LDP
F. IGP
Correct Answer: E
QUESTION 234
Which two statements are correct?
A. AVC type 5 transports a VLAN over MPLS.
B.AVC type 4 tunnels an Ethernet port over MPLS.
C. A VC type 5 tunnels an Ethernet port over MPLS.
D. A VC type 4 transports a VLAN over MPLS.
Correct Answer: CD
QUESTION 235
Which statement about VPLS is true?
A. All CE devices emulate a bridge
B. All provider devices emulate a bridge
C. Hierarchical VPLS reduces signaling overhead
D. Each PE device emulates a bridge
E. Each CE device emulates a bridge
Correct Answer: C
QUESTION 236
Which two statements about VPLS are true? (Choose two.)
A. There is a full mesh of pseudo wires.
B. There is a partial mesh of pseudo wires.
C. Only L2TPv3 can be used for pseudo wire establishment.
D. There is split-horizon to avoid loops.
Correct Answer: AD
QUESTION 237
According to RFC 3931, L2TPv3 utilizes the IANA assigned IP protocol ID of:
A. 110
B. 101
C. 121
D. 51
E. 151
F. 115
Correct Answer: F
QUESTION 238
Which two options best describe the purpose of session ID and cookie field in a L2TPv3 packet?
A. The session ID is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endport. The session ID will be negotiated by the
control connection or statically defined if using the L2TP v3 data plane only.
B. The cookie is a variable length (with a maximum of eight bytes),word-aligned optional field. The control connection can negotiate this as an additional level of
guarantee beyond the regular session ID lookup to make sure that a data message has been directed to the correct session or that any recently reused
session ID will not be misdirected.
C. The cookie is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endpoint. The cookie will be negotiated by the control
connection or statically defined if using the L2TPv3 data plane only
D. The session ID is a variable length (with a maximum of eight bytes), word-aligned optional field. The control connection can negotiate this as an additional level
of guarantee beyond the regular cookie lookup to make sure that a data message has been directed to the correct session or that any recently reused cookie
will not be misdirected.
Correct Answer: AB
QUESTION 239
In AToM, control word is an optional 4-byte field used in the pseudowire packet. The control word carries generic and Layer 2 payload-specific information to
emulate L2 packets correctly. In pseudowire packet, where is this control word inserted?
A. Inserted between the MPLS label stack and the Layer 3 payload
B. Inserted between the MPLS label stack and the Layer 3 Header
C. Inserted between the MPLS label stack and the Layer 2 payload
D. Inserted between the MPLS label stack and the Layer 2 header
Correct Answer: B
QUESTION 240
In the case of Ethernet transport, which two types of attachment circuits does L2TPv3 support? (Choose two.)
A. port tunneling on the Ethernet subinterface
B. VLAN tunneling on the Ethernet trunk
C. port tunneling on the Ethernet interface
D. VLAN tunneling on the Ethernet VLAN subinterface
E. port tunneling on the Ethernet trunk
Correct Answer: CD
Which two statements about VPNv4 address are true? (Choose two.)
A. The VPNv4 address is 128 bits long with a 128-bit long subnet mask
B. The VPNv4 address consists of an RD and an IPv4 address.
C. The VPNv4 address is 96 bits long with a 64-bit long subnet mask.
D. The VPNv4 address is 128 bits long with a 64-bit long subnet mask.
E. The VPNv4 address consists of an RT and an IPv4 address.
F. The VPNv4 address is 96 bits long with a 32-bit long subnet mask
Correct Answer: BF
QUESTION 212
Which two statements about Layer 3 MPLS VPN are true? (Choose two.)
A. The virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE
routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTs.
B. Multiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 format.
C. A customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol (eBGP, RIPv2, EIGRP, OSPF) or a
static routing protocol (Static, Connected).
D. VPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP.
Correct Answer: AC
QUESTION 213
Which Cisco IOS command displays the export VPN route target value of a VRF?
A. show ip vrf all
B. show ip vrf route-targets all
C. show ip vrf summary
D. show ip vrf interfaces
E. show ip vrf detail
F. show ip vrf
Correct Answer: E
QUESTION 214
Refer to the exhibit.
Which IPv6 deployment feature is displayed?
A. MPLS 6PE
B. MPLS 6VPE
C. 6 to 4 Replay Service
D. native IPv6 over MPLS
E. 6 to 4 Tunnel
Correct Answer: B
QUESTION 215
Refer to the exhibit.
A. MPLS 6PE
B. MPLS 6VPE
C. 6 to 4 Replay Service
D. native IPv6 over MPLS
E. 6 to 4 Tunnel
Correct Answer: A
QUESTION 216
In which Cisco IOS configuration mode is the route distinguisher (RD) configured?
A. R1(config-route-at)#
B. R1(config-route-map)#
C. R1(config-it)#
D. R1(config-vrf)#
E. R1(config)#
F. R1(router)#
Correct Answer: D
QUESTION 217
Which three statements about the Route Distinguisher (RD) are true? (Choose three.)
A. The RD is a BGP extended community.
B. The RD prefix and a route target make the VPNv4 address unique.
C. RD, similar to the AS number, is assigned to a service provider by the Internet Assigned Numbers Authority (IANA).
D. The RD is an 8-byte field.
E. One customer may use different RDs for the same IPv4 route.
Correct Answer: BDE
QUESTION 218
Refer to the exhibit.
The service provider is an MPLS and IPv4 enabled network. Which two approaches can enable IPv6 tunneling between site A and site B over the backbone?
(Choose two.)
A. IPv6 customer premise (6CP) over MPLS
B. IPv6 VPN provider edge (6VPE) over MPLS
C. IPv6 virtual forwarding (6VF) over MPLS
D. IPv6 forwarding instance (6FI) over MPLS
E. IPv6 provider edge router (6PE) over MPLS
Correct Answer: BE
QUESTION 219
Which two requirements to deploy 6PE and 6VPE solutions are mandatory? (Choose two.)
A. MPLS is enabled on the core, distribution, and edge devices.
B. A triple stack is enabled on PE devices.
C. The network has at least six PE devices.
D. A dual stack is enabled on all the P and PE devices in a network.
Correct Answer: AD
QUESTION 220
Which three of these are major components of an MPLS VPN network? (Choose three)
A. LDP notification
B. L2TPv3 session
C. VPN route target communities
D. Multiprotocol BGP peering of PE routers
E. MPLS forwarding
Correct Answer: CDE
QUESTION 221
Which statement about VPNv6 addresses is true?
A. The VPNv6 address is a 96-bit route distinguisher and a 128-bit IPv6 address
B. The VPNv6 address is a 64-bit route distinguisher and a 128-bit IPv6 address
C. The VPNv6 address is a 64-bit route distinguisher and a 96-bit IPv6 address
D. The VPMv6 address is a 96-bit route distinguisher and a 96-bit IPv6 address
E. The VPNv6 address is a 128-bit route distinguisher and a 128-bit IPv6 address
Correct Answer: B
QUESTION 222
What is the encapsulation format of an MPLS Multicast VPN (MVPN) packet?
A. IP unicast in IP unicast
B. IP multicast in IP anycast
C. IP anycast in IP anycast
D. IP multicast in IP unicast
E. IP multicast in IP multicast
F. IP unicast in IP multicast
Correct Answer: E
QUESTION 223
Using more than one label on a single packet is required in what context?
A. MPLS TE
B. When CEF switching and Label switching is done
C. In all the above circumstances.
D. MPLS VPN
Correct Answer: D
QUESTION 224
In the Inter-AS VPN deployment shown in the diagram, what is the Next Hop address of MP-IBGP Update for CE4 network received at PE-R2?
A. ASBR-2 50.0.0.3
B. PE-R2 50.0.0.2
C. PE-R4 50.0.0.4
D. ASBR-1 50.0.0.1
A. ASBR-2 50.0.0.3
B. PE-R2 50.0.0.2
C. PE-R4 50.0.0.4
D. ASBR-1 50.0.0.1
Correct Answer: A
QUESTION 225
There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet label stack sequence (from outer to inner) for the VPN traffic on
this router?
A. VPN label, IGP label, TE label
B. TE label, IGP label, VPN label
C. IGP label, VPN label, TE label
D. TE label, VPN label, IGP label
E. IGP label, TE label, VPN label
Correct Answer: B
QUESTION 226
Which three statements about the route target (RT) are true? (Choose three.)
A. The RT is a BGP extended community.
B. The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
C. When a VPN route that is learned from a CE router is injected into BGP, one or more RTs are associated with it
D. The distribution of VPN routing information is controlled through the use of VPN RTs
E. When a VPN route that is learned from a CE router is injected into BGP, there is always one RT that is associated with it.
Correct Answer: ACD
QUESTION 227
In the context of MPLS, what is the correct action to be performed when an aggregate label is received?
A. It replaces the bottom label in the MPLS label stack with a VPN label and propagates
B. It replaces the top label in the MPLS label stack with a VPN label and propagates
C. It adds the VPN label into the top label in the MPLS label stack
D. It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
Correct Answer: D
QUESTION 228
Which two statements are correct with regard to route distinguisher as defined in RFC 4364 AKA IP-VPN (MPLS-VPN)? (Choose two.)
A. The configuration to define Route-Distinguisher is ip vrf CNT rd 1:1
B. A route distinguisher can be imported and exported to and from a VRF
C. Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm.
D. Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.
Correct Answer: AD
QUESTION 229
In Mvpn how many unicast gre are supported ?
A. 50
B. 1500
C. 500
D. 2000
Correct Answer: C
QUESTION 230
Which two implementations are standard Virtual Private LAN Service (VPLS) implementations that are supported by the IETF? (Choose two)
A. VPLS uses LDP for signaling.
B. VPLS uses BGP for autodiscovery and signaling.
C. VPLS uses extended IS-IS for signaling
D. VPLS uses OSPF version 3 for auto discovery and signaling
E. VPLS uses spanning tree for signaling
Correct Answer: AB
QUESTION 231
Which three things are the building blocks of the Cisco VPLS architecture? (Choose three)
A. VLAN Trunk Protocol (VTP)
B. State Synchronization Protocol (SSP)
C. L2VPN
D. Ethernet Virtual Switch Interface (VSI)
E. Label Distribution Protocol (LDP)
Correct Answer: CDE
QUESTION 232
What is the data encapsulation method for the VPLS virtual circuit (VC)?
A. MAC over MPLS
B. L2TPV3
C. 802.1 QinQ
D. Ethernet over MPLS
E. GRE
Correct Answer: D
QUESTION 233
With VPLS, which protocol is used for label exchange and PW signalling?
A. MP-BGP
B. LDP
C. BGP
D. MTP
E. Directed LDP
F. IGP
Correct Answer: E
QUESTION 234
Which two statements are correct?
A. AVC type 5 transports a VLAN over MPLS.
B.AVC type 4 tunnels an Ethernet port over MPLS.
C. A VC type 5 tunnels an Ethernet port over MPLS.
D. A VC type 4 transports a VLAN over MPLS.
Correct Answer: CD
QUESTION 235
Which statement about VPLS is true?
A. All CE devices emulate a bridge
B. All provider devices emulate a bridge
C. Hierarchical VPLS reduces signaling overhead
D. Each PE device emulates a bridge
E. Each CE device emulates a bridge
Correct Answer: C
QUESTION 236
Which two statements about VPLS are true? (Choose two.)
A. There is a full mesh of pseudo wires.
B. There is a partial mesh of pseudo wires.
C. Only L2TPv3 can be used for pseudo wire establishment.
D. There is split-horizon to avoid loops.
Correct Answer: AD
QUESTION 237
According to RFC 3931, L2TPv3 utilizes the IANA assigned IP protocol ID of:
A. 110
B. 101
C. 121
D. 51
E. 151
F. 115
Correct Answer: F
QUESTION 238
Which two options best describe the purpose of session ID and cookie field in a L2TPv3 packet?
A. The session ID is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endport. The session ID will be negotiated by the
control connection or statically defined if using the L2TP v3 data plane only.
B. The cookie is a variable length (with a maximum of eight bytes),word-aligned optional field. The control connection can negotiate this as an additional level of
guarantee beyond the regular session ID lookup to make sure that a data message has been directed to the correct session or that any recently reused
session ID will not be misdirected.
C. The cookie is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endpoint. The cookie will be negotiated by the control
connection or statically defined if using the L2TPv3 data plane only
D. The session ID is a variable length (with a maximum of eight bytes), word-aligned optional field. The control connection can negotiate this as an additional level
of guarantee beyond the regular cookie lookup to make sure that a data message has been directed to the correct session or that any recently reused cookie
will not be misdirected.
Correct Answer: AB
QUESTION 239
In AToM, control word is an optional 4-byte field used in the pseudowire packet. The control word carries generic and Layer 2 payload-specific information to
emulate L2 packets correctly. In pseudowire packet, where is this control word inserted?
A. Inserted between the MPLS label stack and the Layer 3 payload
B. Inserted between the MPLS label stack and the Layer 3 Header
C. Inserted between the MPLS label stack and the Layer 2 payload
D. Inserted between the MPLS label stack and the Layer 2 header
Correct Answer: B
QUESTION 240
In the case of Ethernet transport, which two types of attachment circuits does L2TPv3 support? (Choose two.)
A. port tunneling on the Ethernet subinterface
B. VLAN tunneling on the Ethernet trunk
C. port tunneling on the Ethernet interface
D. VLAN tunneling on the Ethernet VLAN subinterface
E. port tunneling on the Ethernet trunk
Correct Answer: CD
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