CCIE SP Flashcards
A service provider is implementing Ethernet solutions for clients that are not being provisioned within the MPLS core network. Which solution allows the Service Provider to complete Ethernet circuit provisioning in this scenario?
A. L2TPv3
B. VPLS
C. AToM
D. PPPoE
L2TPv3
QUESTION NO: 2
Which is the main characteristic of LTE architecture comparing to other mobile architectures?
A. Provides supports to deploy Layer 3 MPLS VPN model, where other mobile architectures do
not support.
B. Offers node redundancy with the static route configured on the IP NodeB using the
HSRP/VRRP virtual ip address.
C. Provides a simpler, less hierarchical model with the capability of simplistically distributing the
core gateways.
Provides a simpler, less hierarchical model with the capability of simplistically distributing the core gateways.
QUESTION NO: 3
A Service Provider is offering VoIP services and a service level agreement to customers. Which configuration provides validation to customers that the service level agreement has been honored?
A. ipsla 999 udp-jitter 209.165.200.225 1000codec g729a tos 160
ipsla schedule 999 life forever start-time now
B. ipsla 999 icmp-jitter 209.165.200.225 tos 160
ipsla schedule 999 life forever start-time now
C. ipsla 999 icmp-jitter 209.165.200.225 tag VoIP-SLA
ipsla schedule 999 life forever start-time now
D. ipsla 999 udp-jitter 209.165.200.225 1000 codec g729a tag VoIP-SLA
ipsla schedule 999 life forever start-time now
ipsla 999 udp-jitter 209.165.200.225 1000 codec g729a tag VoIP-SLA ipsla schedule 999 life forever start-time now
QUESTION NO: 4
A telecom company offers ISPs the ability to resell dynamic IP broadband services over its local loops, but it does not allow the resellers to install broadband network gateways. If an ISP wants to become a reseller but is unable to use NHRP, which tunneling protocol should be implemented?
A. IP in IP
B. IPsec
C. L2TP
D. GRE
L2TP
The vrf MAINT has been provisioned and used by the Service Provider management network. The engineer discovers that syslog messages are not being received on the syslog server. IP reachability has been validated using ping. Which issue in the configuration must be corrected?
A. logging onmust include thevrf MAINTkeyword.
B. logging hostmust include thevrf MAINTkeyword.
C. The logging facility must be configured for syslog processing.
D. The route targets that are configured do not match the route distinguisher
logging host must include the vrf MAINTkeyword
ntp server 10.0.1.1
ntp server 10.0.2.1
ntp server 10.0.3.1
ntp server 10.0.4.1
A service provider has multiple time sources in the environment for NTP. The time source at
10.0.4.1 is intended to be seen as a primary time source. What command can be issued on PE4 to
fix the configuration, ensuring the proper NTP source will be issued?
A. ntp peer 10.0.4.1
B. ntp peer 10.0.4.1 prefer
C. ntp server 10.0.4.1 source GigabitEthernet0/0
D. ntp server 10.0.4.1 prefer
ntp server 10.0.4.1 prefer
QUESTION NO: 7
Which are the three benefits of using the Yang model? (Choose three.)
A. Reduce lab footprint
B. Improve access to resources
C. Support interoperabilitythat provides a standard way to model management data
D. Support simplified network management applications
E. Provide a scale virtual lab environment
F. Support programmatic interfaces
Support interoperability that provides a standard way to model management data
Support simplified network management applications
Support programmatic interfaces
QUESTION NO: 8
Refer to the exhibit. How will the redistributed routes on R1 from EIGRP into OSPF be installed in the R4 routing table?
A. as a default route with an E2 route type
B. as a default route with an IA route type
C. as specific routes with an E2 route type
D. as specific routes with an N2 route type
E. as a default route with an N2 route type
as a default route with an IA route type
IEEE 802.1ag Coonectivity Fault Management
Link layer OAM Ethernet Local Management Interface SG 13 Y 1731 Requirement for OAM in Ethernet Networks VPLS OAM Service Layer OAM
Service layer OAM
A Service Provider provides a Layer 2 connection that is based on IEEE 802.1ad. When the customer tries to access a switch at the other side of the link by using SSH, the connection fails.
What is the cause of this failure?
A. The Service Provider omitted the commandl2protocol-tunnel stp.
B. The Service Provider omitted the commandl2protocol-tunnel vtp.
C. The Service Provider omitted the commandvlan dot1q tag native.
D. The Service Provider omitted the commandspanning-tree bpdufilter enable.
The Service Provider omitted the command vlan dot1q tag native
In an MPLS VPN environment, the QoS marking over the MPLS backbone must be different from the one that is received from the customer. The forwarding on the egress PE is based on the marking that is set by the ingress PE. Which null label and QoS mode can achieve this?
A. MPLS explicit null with pipe mode
B. MPLS implicit null with short pipe mode
C. MPLS implicit null with uniform mode
D. MPLS explicit null with uniform mode
E. MPLS explicit null with short pipe mode
F. MPLS implicit null with pipe mode
MPLS explicit null with pipe mode
An engineer is deploying RTBH. What is necessary routing constraint required for successful implementation?
A. The trigger device must have an iBGP session with all the clusters/route reflectors in the
autonomous system.
B. The trigger device must redistribute the static route pointing to a null interface into the IGP
process.
C. Theno ipreachablescommand must be issued on the PE router interface under attack.
D. The attacker’s destination IP address must be routed to a null interface.
E. The eBGP sessions need to set the next-hop attribute value to the trigger device loopback
interface.
The trigger device must have an iBGP session with all the clusters/route reflectors in the autonomous system.
Refer to the exhibit.
ABC and XYZ MPLS VPN customers are accruing Internet access. Both CEs are sending traffic to
the Internet. Which statement about their connectivity is true?
A. Both CEs will have connectivity.
B. Only CE-XYZ will have connectivity.
C. Neither CEs will have connectivity, as both CEs are using the same NATed subnet.
D. Only CE-ABC will have connectivity.
E. Neither CEs will have connectivity, as IAR does not have route back tothe NATed subnet
Only CE-ABC will have connectivity
Drag and drop the IOS XR NTP access group options on the left to the right from the least restrictive (top) to the most restrictive order (bottom).
peer
query-only
serve
serve-only
peer
serve
serve-only
query-only
Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources?
A. HVR
B. SVR
C. SDR
D. DRP
SDR
An engineer wants to configure MPLS TE Fast Reroute with link protection on five routers. Which
methodology can reduce configuration on the point of the local repair router and successfully complete the task?
A. Configure a backup tunnel on the PLR.
B. Enable the autotunnel backup feature.
C. Configure a backup tunnel on the tunnel headend router.
D. Enable the autotunnel primary feature.
Enable the autotunnel backup feature.
Refer to the exhibit. An MPLS Layer 3 VPN service has been provisioned for a customer. What will be the ToS value at Site-B for the exceeded traffic that it is sent from Site-A with ToS 2?
A. 0 B. 2 C. 3 D. 4 e. No exceeded traffic will reach Site-B.
No exceeded traffic will reach Site-B.
What is NETCONF?
A. It is a standard for installing, manipulating and deleting configuration of network devices.
B. it is a Cisco proprietary solution to help remove the time, cost and manual steps involved in
network element configuration.
C. It is data modeling language, to help remove the time, cost and manual steps involved in
network element configuration.
D. It is a new recommendation which writes device specific CLI scripts while keeping flexibility in a
vendor dependence environment.
It is a standard for installing, manipulating and deleting configuration of network devices.
QUESTION NO: 19 DRAG DROP
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
HSS
A) Concatenation of HLR and AuC
B) in charge of all the Control Plane functions related to subscriber
c) manages the service policy and sends QoS setting information
d) termination point of the pocket data towards the PDN
e) termination point of the pocket data interface towards E-UTRAN
Concatenation of HLR and AuC
QUESTION NO: 19 DRAG DROP
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
MME
A) Concatenation of HLR and AuC
B) in charge of all the Control Plane functions related to subscriber
c) manages the service policy and sends QoS setting information
d) termination point of the pocket data towards the PDN
e) termination point of the pocket data interface towards E-UTRAN
in charge of all the Control Plane functions related to subscriber
QUESTION NO: 19 DRAG DROP
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
PCRF server
A) Concatenation of HLR and AuC
B) in charge of all the Control Plane functions related to subscriber
c) manages the service policy and sends QoS setting information
d) termination point of the pocket data towards the PDN
e) termination point of the pocket data interface towards E-UTRAN
manages the service policy and sends QoS setting information
QUESTION NO: 19 DRAG DROP
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
PDN GW
A) Concatenation of HLR and AuC
B) in charge of all the Control Plane functions related to subscriber
c) manages the service policy and sends QoS setting information
d) termination point of the pocket data towards the PDN
e) termination point of the pocket data interface towards E-UTRAN
termination point of the pocket data towards the PDN
QUESTION NO: 19 DRAG DROP
Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right.
Service GW
A) Concatenation of HLR and AuC
B) in charge of all the Control Plane functions related to subscriber
c) manages the service policy and sends QoS setting information
d) termination point of the pocket data towards the PDN
e) termination point of the pocket data interface towards E-UTRAN
termination point of the pocket data interface towards E-UTRAN
Which BGP feature improves the convergence and response time to adjacency changes with BGP
neighbors?
A. reducing BGP scanner timing to the minimum that is supported B. BGP Multihop C. Next-Hop Address Tracking D. Fast Peering Session Deactivation E. TTL Security Check
Next-Hop Address Tracking
Which are the two purposes of the MPLS label value 1? (Choose two.)
A. it is used for MPLS OAM packets. B. it indicates an implicit null label. C. it is used for VPNv6 packets. D. it is used to carry the QoS value in the label stack. E. it indicates an explicit null label. F. itindicates a router alert label.
it is used for VPNv6 packets.
it indicates a router alert label.
Refer to the exhibit. Why is R3 unable to install 1.1.1.1/32 in its routing table?
A. 11.11.11.11/32 exists in the routing table, so the conditional advertising is not working.
B. The route is filtered out by theip prefix-list ROUTE-INcommand.
C. 11.11.11.11/32 is advertising in the BGP table, so conditional advertising is not working.
D. Thebgp redistribute-internalcommand is missing under the R2 BGP process.
The route is filtered out by theip prefix-list ROUTE-INcommand
An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP
configuration in the network?
A. Enable LDP Fast Synch. B. Enable IP Fast Reroute. C. Enable theauto tunnelprimary feature. D. Enable Cisco MPLS TE Fast Reroute. E. Enable theauto tunnelbackup feature.
Enable IP Fast Reroute.
What are three actions that the control word performs in MPLS AToM? (Choose three.)
A. is used to identify the VC label
B. is used for padding small packets
C. preserves the sequence of the transported frames
D. facilitates the load balancing of AToM packets in the MPLS backbone network
E. carries control bits of the Layer 3 header of the transported protocol
F. is used to identify the tunnel label
is used for padding small packets
preserves the sequence of the transported frames
facilitates the load balancing of AToM packets in the MPLS backbone network
What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choose two.)
A. a configuration that is grouped by interface
B. a configuration that is grouped by process
C. one-stage configuration
D. a monolithic OS
E. a two-stage configuration
a configuration that is grouped by process
a two-stage configuration
Which are two major changes SyncE offers over traditional Ethernet to make it suitable for clock
distribution? (Choose two.)
A. SyncE introduces the concept of “Boundary Clocks” and “Transparent Clocks”
improvingnetwork scalability and accuracy of clock synchronization.
B. Industry standard that guarantee interoperability, since granular details, such as specific field
values are specified.
C. A mandated clock accuracy of 4.6ppm.
D. The ESMC protocol forclock selection, distribution, management, traceability, and failover.
E. High-priority synchronization packets so it can continually adjust its own oscillator.
A mandated clock accuracy of 4.6ppm.
The ESMC protocol forclock selection, distribution, management, traceability, and failover
What is the PPMP label used for?
A. for the ingress replication model with BIDIR-PIM in an overlay model
B. only for the inter-ASmVPN models that use mLDP
C. for the partitioned mVPNmodel with PIM signaling in an overlay model
D. only for unicast over MPLS VPN
E. for all the default MDT and mVPN models
only for unicast over MPLS VPN
vrf definition ABC rd 10.0.0.1:1000 ! address-family ipv4 route-target export 1:1 route-target import 1:1 mdt default 232.0.0.1
Which two statements about multicast VPN configuration are true? (Choose two.)
A. The multicast tree is created based only on the existence of active sources or receivers behind
PEs in the ABC VRF.
B. The service provider core network is required to support SSM.
C. Multicast needs to be enabledonly on ABC VRF and is tunneled to participating PE routers in
the ABC VRF.
D. The SP core network is required in order to enable the BGP Multicast Address Family on
allpeering.
E. Multicast is required for the core network in addition to the ABC VRF.
F. The multicast tree exists regardless of whether there are any active sources or receivers in the
ABC VRF.
Multicast is required for the core network in addition to the ABC VRF.
The multicast tree exists regardless of whether there are any active sources or receivers in the
ABC VRF.
An engineer is implementing an MPLS within the core of the Service Provider network. What two
components are required to build the control and data plane for MPLS Label Switched Paths?
(Choose two.) A. FIB B. CEF C. LDP D. LFIB E. OSPF
CEF
LDP
Refer to the exhibit. Customer XYZ Site 1 is not learning prefixes from Site 2. What is the issue?
A. MPLS LSP is broken along the path.
B. Theroute-policyis not implemented in router PE-2.
C. The BGPlocal-ascommand should be used between PE-1 and CE-1.
D. The route-distinguisher values must match in both sites.
E. The BGPas-overridecommand should beimplemented between PE-1 and CE-1.
The BGPas-override command should be implemented between PE-1 and CE-1
Refer to the exhibit. A network engineer must configure BFD for IS-IS between R1 and R2. In case the primary link fails, the convergence time should be less than a second.
Which two IOS commands are required to meet this requirement? (Choose two.)
A. isisbfd
B. bfd minimum-interval 250
C. bfd interval 250 min_rx 250 multiplier 3
D. bfd multiplier 3
E. bfd interval 250 min_rx 250 multiplier 4
F. bfd fast-detect ipv4
bfd interval 250 min_rx 250 multiplier 3
bfd fast-detect ipv4
An engineer must implement E-Line services for a service provider network. Which two services
apply in this situation? (Choose two.)
A. EVPL B. E-Tree C. E-LAN D. EVC E. EPL
EVPL
EPL
Refer to the exhibit. After the BGP TCP negotiation between RouterA and RouterB, what will be
the value of the keep alive timer and the hold-down timer, respectively?
A. 3 seconds and 9 seconds B. 60 seconds and 180 seconds C. 10 seconds and 9 seconds D. no value, because BGP negotiation will not be successful E. 10 seconds and 10 seconds F. 10 seconds and 30 seconds G. 3 seconds and 30 seconds H. 3 seconds and 10 seconds
3 seconds and 9 seconds
In a routing virtualization concept, which are the two main techniques for creating virtualized router
entities as defined by their physical and operational characteristics? (Choose two.)
A. VDC
B. SVR
C. DRP
D. HVR
E. SDR
SVR
HVR
Which two statements about Unified MPLS are true? (Choose two.)
A. Unified MPLS works on Cisco IOS XR Software only.
B. Unified MPLS extends MPLS across multidomain networks in a scalable manner.
C. New technologies or protocols are not used; only MPLS, LDP, IGP, and BGP are used.
D. ABR loopback prefixes should always be redistributed from the core IGP into the aggregation
IGP.
E. The RRs are part of the control path only.
Unified MPLS extends MPLS across multidomain networks in a scalable manner.
ABR loopback prefixes should always be redistributed from the core IGP into the aggregation
IGP.
Customers connecting to a Service Provider for Internet access are intending to implement redundant peering. The design requirements call for preferring a primary link for both ingress and egress traffic. Secondary links should be used only during primary outages. What two BGP deployment options will accomplish this design goal? (Choose two.)
A. On the router handlingthe secondary link, advertise routes with a MED value of 0.
B. On the router handling the primary link, setthe weight for all incoming routes to be a value of 0.
C. On the router handling the secondary link, advertise all routes with a longer AS-PATH value.
D. On the router handling the primary link, advertise all routes with a longer AS-PATH value.
E. On the router handling the secondary link, set the local preference for all incoming routes to be
a value of 0.
On the router handling the secondary link, advertise all routes with a longer AS-PATH value
On the router handling the secondary link, set the local preference for all incoming routes to be
a value of 0.
Refer to the exhibit. A customer is running IS-IS within a network and is using BGP as a CE-PE routing protocol. Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link, regardless of whether there is a flap in the MPLS link or backdoor link?
A. Configure theneighbor weight 33768command on CE1 under the BGP process.
B. Configure thedistance bgp 115 200 200command on CE1 under the BGP process.
C. Configure thedistance 30ipcommand on CE1 under the IS-IS process.
D. Configure thedistance bgp 115 200 200command on CE2 under the BGP process.
E. Configure theneighbor weight 33768command on CE2 under the BGP process.
Configure thedistance bgp 115 200 200command on CE1 under the BGP process.
Which are the two fundamental ways in which IEEE 1588 differs from SyncE? (Choose two.)
A. In addition to frequency synchronization, it achieves ToD synchronization to achieve phase alignment which is required for multi-channel communication.
B. It is a purely-based solution, with the actual clock values being passed inside the payloads of special packets dedicated to that task.
C. It offers two major changes over traditional Ethernet to make it suitable for clock distribution: a mandated clock accuracy and the ESMC protocol for clock selection, distribution, management, traceability, and failover.
D. SyncE is a Cisco proprietary ToDtechnologywhere IEEE 1588 is a industry standard recommended for interoperability across vendor devices.
E. IEEE 1588 applies to voice-only systems or with low-bandwidth data traffic.
In addition to frequency synchronization, it achieves ToD synchronization to achieve phase alignment which is required for multi-channel communication.
It is a purely-based solution, with the actual clock values being passed inside the payloads of special packets dedicated to that task.
Refer to the exhibit. Both MPLS TE tunnel 14 and MPLS TE tunnel 124 pass over the same physical links. Which configuration on R1 enables TE 14 to be the primary tunnel and TE 124 to become active when TE 14 is admin disabled?
A. Interface Tunnel14 tunnelmpls traffic-eng priority 3 1 ! Interface Tunnel124 tunnelmpls traffic-eng priority 5 4 B. Interface Tunnel14 tunnelmpls traffic-eng priority 4 1 ! `Interface Tunnel124 tunnelmpls traffic-eng priority 3 2 C. Interface Tunnel14 tunnelmpls traffic-eng priority 7 7 ! Interface Tunnel124 tunnelmpls traffic-eng priority 1 1 D. Interface Tunnel14 tunnelmpls traffic-eng priority 3 2 ! Interface Tunnel124 tunnelmpls traffic-eng priority 4 1
Interface Tunnel14 tunnelmpls traffic-eng priority 4 1 ! `Interface Tunnel124 tunnelmpls traffic-eng priority 3 2
A network engineer wants to decrease the convergence time of a network that is running integrated IS-IS as an IGP, at the expense of bandwidth and CPU usage. Which two configuration tasks achieve this goal? (Choose two.)
A. Configure thehold timeto be 1 second.
B. Configure thehello intervalto be minimal.
C. Ensure thathello-paddingis disabled.
D. Ensure that thehello multiplieris set to 3.
E. Configure thehello multiplierto be 3.
Configure thehello intervalto be minimal.
Ensure that thehello multiplieris set to 3.
In a Layer 2 VPN service, which is the default behavior of an EVC-based platform with regards to VLAN manipulation?
A. keeps the VLAN tag of the incoming frame
B. attaches two VLAN tags to the incoming frame
C. removes the VLAN tag from the incoming frame
D. removes all the VLAN tags from the incoming frame
E. sets the VLAN tag of the incoming frame
keeps the VLAN tag of the incoming frame
When IPv6 is enabled on an interface, which three multicast addresses does the configured interface automatically join? (Choose three.) A. FF01::2 B. FEC0::1 C. FF02:0:0:0:0:1:FF00::/104 D. FF02::1 E. FF01::1 F. FF02::2 G. FF02::D H. FF02::5
FF02:0:0:0:0:1:FF00::/104
FF02::1
FF02::2
A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.) A. TE FRR B. IP FRR C. graceful restart D. BFD E. NSR
graceful restart
NSR
Refer to the exhibit. An SP core is running MPLS with OSPF as the IGP used for Loopback propagation. LDP Synchronization is enabled per the given configuration. What will the traffic flow behavior be after a temporary outage event on PE1 Eth0/0?
A. Permanently through PE1 -> P2 -> PE4 due to lowest path metric.
B. Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
C. Permanently through PE1 -> P1 -> PE4 due to lowest path metric.
D. Initially through PE1 -> P2 -> PE4, then a few seconds later, it will be over PE1 -> P1 -> PE4
Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
Which two frame types are correct when configuring T3 interfaces? (Choose two.)
A. M23 B. G.832 C. Extended Super Frame D. C-bit parity E. G.751 F. Super Frame
M23
C bit parity
Refer to the exhibit. The referenced TE tunnels compete for bandwidth requirements over the limited available bandwidth that is provisioned. Which core MPLS component erases a conflict and provides admission control for any new added TE tunnel?
A. link management
B. link attributes
C. MPLS TE priorities
D. RSVP
RSVP
