400-201CCIEServiceProviderbytheWildOneforCertCollection.org
Service Provider Written (400-201) October 2016
By theWildOne for certcollection.org
QUESTION 1
When will the primary processor core dump run in case of a switchover?
A. Never takes place
B. Periodically
C. During switchover
D. After switchover
E. Before switchover
Answer: D
QUESTION 2
A company plans to secure its connectivity over its provider. Which method can reduce
overhead and provide encryption for Layer 2 over the provider cloud?
A. MACsec
B. IPsec
C. L2VPN with 802.1X extensions
D. L2TPv3
Answer: A
QUESTION 3
What statement about Transit AS is true?
A. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their
Source AS.
B. Traffic and prefixes originating from Source AS are carried across a Transit AS to reach
their Destination AS.
C. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their
Destination AS.
D. None of the above.
Answer: B
QUESTION 4
Due to recent acquisitions, a company's MPLS infrastructure is growing very quickly.
Concerns arise about labelling each and every IP address on the P router. Which command
would significantly reduce the label allocations without compromising LDP functionalities?
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A. ip prefix-list List1 deny prefix/prefix_lengtht
mpls ldp label
allocate global prefix-list List1
B. mpls ldp label
allocate global host-routes
C. access-list 1 permit subnet wildcard
mpls ldp neighbor neighbor_ip labels accept 3
D. mpls ldp password required for 10
!
access-list 10 permit host_ip_1
access-list 10 permit host_ip_2
access-list 10 permit host_ip_n
Answer: B
QUESTION 5
Refer to the exhibit. When a traceroute is performed from a PC behind R2, the next hop on
R1 for IPv4 is 10.0.1.2, and for IPv6 it is 2001:DB8:2::2. What is causing this behaviour?
A. GigabitEthernet2/1 has a Level 1-only adjacency.
This causes it to be the preferred path for the IPv6 packets.
B. When SPF ran on R2, it calculated two equal paths to R1.
It was a coincidence that than the packets choose different paths.
C. Multitopology is enabled on R2, which causes the IPv6 packets to use a different path
than the IPv4 packets.
D. 2001:DB8:2::2 is on a Gigabit Ethernet interface.
Because its speed is higher than Fast Ethernet, the IS-IS metric is preferred.
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Answer: C
QUESTION 6
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
Answer: BE, Process grouped configuration and 2-stage configuration (configure and
commit)
QUESTION 7
An IS-IS enabled router with multiple IS-IS neighbors is required to have BFD sessions
with all neighbors. Which BDF mode should you use when you want to save the overhead
of periodic protocol control packets?
A. echo
B. asynchronous
C. demand
D. active
Answer: C, on demand saves non necessary periodic petitions
QUESTION 8
Drag and drop Evolved Packet Core functional entities on the left to the correct description
on the right.
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Answer:
QUESTION 9
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 the hold time to be 1 second.
B. Configure the hello interval to be minimal.
C. Ensure that hello-padding is disabled.
D. Ensure that the hello multiplier is set to 3.
E. Configure the hello multiplier to be 3.
Answer: BE, explicitly set the multiplier to 3 and the minimal hello timer.
QUESTION 10
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"
improving network 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 for clock selection, distribution, management, traceability, and
failover.
E. High-priority synchronization packets so it can continually adjust its own oscillator.
Answer: CD, ESMC plus great accuracy.
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QUESTION 11
Which two flexible service mapping features that are used on the ES40 line card can
classify traffic into different service instances, in order to consume fewer VLANs? (Choose
two.)
A.
B.
C.
D.
E.
F.
CoS
DSCP
IP precedence
MPLS experimental bit
ToS
EtherType
Answer: AF, CoS and EtherType
QUESTION 12
Which three statements about bidirectional PIM are true? (Choose three)
A. Traffic for a bidirectional group flows along the one shared tree and simultaneously
utilizes multiple paths in a redundant network topology.
B. It does not require any traffic signalling in the protocol.
C. Membership to a bidirectional group is signalled using explicit Join messages.
D. It maintains source-specific forwarding state.
E. It reduces memory, bandwidth, and CPU requirements
Answer: BCE, no signalling, explicit Joins, reduces memory/CPU.
QUESTION 13
A network architect is tasked to design and deploy multicast in a service provider core.
There is a requirement to have two PIM RP routers for PIM-SM distribute mode. What can
the network architect do to satisfy this requirement?
A.
B.
C.
D.
Set two RPs with same priority.
Set two RPs, one with high priority and the other with low priority.
Set one RP as the main RP and another as a backup RP.
Set the RP-BSR method with one high-priority RP and one low-priority RP.
Answer: D, BSR.
QUESTION 14
In relation to MPLS Multicast VPN, which three statements about multicast distribution
(MDT) groups are true? (Choose three).
A. Default MDT groups are used for PIM control traffic, low-bandwidth sources, and
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B.
C.
D.
E.
flooding of sparse mode traffic.
MDTs are built in customer networks.
Data MDT groups are used for high-bandwidth sources to reduce replication to
uninterested PEs.
MDTs are built in provider networks.
The number of MDTs depends on PIM modes of MDT groups.
Answer: CDE, built in provider networks, used to reduce replication, number depends on
PIM modes.
QUESTION 15
What is the role of Forwarding Equivalence Class (FEC) in MPLS?
A. FEC determines how to establish an LSP path.
B. FEC determines how IP packets are forwarded in MPLS LSP.
C. FEC determines how MPLS labels are stacked in LSP.
D. FEC determines how a group of IP packets are mapped to an LSP.
Answer: D, how IP packets are mapped to LSP.
QUESTION 16
In optical channel transport unit overhead (OTU OH), what are general communication
channels 1 and 2 (GCC1/GCC2) used for?
A. For trail trace identification
B. As the backward defect indicator
C. To transmit information between OTU termination points
D. To extend command and management functions over several frames
E. General communication channels 1 and 2 (GCC1/GCC2) do not belong to OTU OH.
Answer: E
QUESTION 17
Which option describes the incorrect usage of the Label Distribution method?
A. MP-BGP is used for label distribution for VPN customer routes.
B. LDP is primarily used in internal networks of MPLS-VPN providers.
C. MP-BGP is used for label distribution in MPLS Traffic Engineered networks.
D. Directed LDP is used for label distribution in L2-VPN Attachment Circuits.
Answer: C
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QUESTION 18
RIPv2 differs from RIPv1 in which three things? (Choose three).
A. It uses multicast address 224.0.0.10, instead of broadcast.
B. It uses multicast address 224.0.0.9, instead of broadcast.
C. It can use either multicast or broadcast addresses, instead of just broadcast.
D. It sends incremental updates, instead of periodic updates.
E. It is classless, instead of classful.
F. It supports authentication, and RIPv1 does not.
Answer: BEF
QUESTION 19
Which option propagates SRLG membership information to the network?
A. BGP attribute
B. IGP extension
C. RSVP extension
D. LDP extension
E. PIM extension
Answer: B
QUESTION 20
Which are the three benefits of using the Yang model? (Choose three.)
A. Reduce lab footprint.
B. Improve access to resources.
C. Support interoperability that 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
Answer: CDF
QUESTION 21
What IOS commands display MPLS label mapping on an LSR?
A. Show mpls ldp parameters
B. Show mpls ldp bindings
C. Show mpls forwading-table
D. Show mpls ldp discovery
E. Show mpls ldp neighbor detail
Answer: B
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QUESTION 22
Answer:
QUESTION 23
Refer to the exhibit. 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 on must include the vrf MAINT keyword.
B. Logging host must include the vrf MAINT keyword.
C. The logging facility must be configured for syslog processing.
D. The route targets that are configured do not match the route distinguisher.
Answer: B
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QUESTION 24
Which are the three header fields that affect how Equal-Cost Multipath hashes traffic flow
into interface groups? (Choose three.)
A. source MAC address
B. source port
C. source IP address
D. destination IP address
E. IP protocol ID
F. Destination MAC address
Answer: BCD
QUESTION 25
An R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two
exit points: through R2 and R3 routers. Which two options must be configured on the R1
router to achieve this goal? (Choose two.)
A. The BGP maximum path feature must be configured on R1.
B. The BGP PIC core must be enabled on R1
C. Weight, local-preference, MED, as-path length, origin, and the BGP next-hop IGP
cost must be the same for the R2 and R3 iBGP updates to R1.
D. The BGP Link Bandwidth feature must be applied on R1.
E. BGP extended community exchange must be enabled between iBGP neighbors.
Answer: AC, Maximum Path ON and equal parameters.
QUESTION 26
A company is deciding between an HVR and SVR solution in order to finalize a
virtualization project proposal. Which is an advantage of HVR solution?
A. A HVR solution implements dedicated data plane resources.
B. A HVR solution implements shared control plane resources.
C. A HVR solution introduces significant contention of resources.
D. A HVR solution implements dedicated chassis resources.
Answer: A
QUESTION 27
Which three of these are optical channel data unit (ODU) overhead fields? (Choose three)
A. general communication channel 0 (GCC0)
B. section monitoring
C. reserved (RES)
D. General communication channels 1 and 2 (GCC1 GCC2)
E. Tandem connection monitoring activation deactivation (TCM ACT)
Answer: CDE – RES, GCC1 and 2, TCM-ACT
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QUESTION 28
Which three modes are the operating of HDLC? (Choose three)
A. asynchronous balanced mode (ABM)
B. normal response mode (NRM)
C. normal peer mode (NPM)
D. asynchronous client mode (ACM)
E. asynchronous response mode (ARM)
Answer: ABE
QUESTION 29
BGP best route selection process is based on what?
A. path attributes
B. lowest cost
C. highest bandwidth
D. lowest delay
E. lowest hop-count
Answer: A
QUESTION 30
Refer to the exhibit. In the short-pipe QoS mode, this customer has QoS control for which
two links? (Choose two.)
A. a
B. c
C. d
D. b
E. e
Answer: AE
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QUESTION 31
Cisco IOS XR software is partitioned into three planes: control, data, and management.
Which three of these belong to the data plane? (Choose three.)
A. XML
B. RIB
C. FIB
D. QoS
E. PFI
Answer: CDE, FIB QoS PFI
QUESTION 32
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
Answer: CE, graceful restart and NSR
QUESTION 33
What are three main characteristics of mLDP that differ from RSVP-TE? (Choose three.)
A. The LSPs are built from tailend to headend.
B. The LSPs are built from headend to tailend.
C. It supports only P2MP LSPs.
D. It supports both P2MP and MP2MP LSPs.
E. Signalling is periodic.
F. No periodic signalling is performed.
Answer: ADF, LSP is built from tailend, supports MP2MP and no periodic signalling.
QUESTION 34
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. it indicates a router alert label.
Answer: AF OAM Label and Router Alert
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QUESTION 35
Refer the exhibit. Two Autonomous Systems are enabled to support multicast. An engineer
wants to set up configuration so that a multicast client at AS 100 can receive multicast
traffic from the M- Server at AS 200. However, the RP announcements must be limited
within each autonomous system site. Which Cisco IOS configuration achieves this goal?
A.
B.
C.
D.
E.
F.
On both ASBRs Eth0/0 and the no ip pim sparse-mode command.
On both ASBRs add the ip pim send-rp-discovery scope 1 command.
On both RPs add the ip pim send-rp-discovery scope 2 command.
On both ASBRs Eth0/0 add the ip pim bsr-border command.
On both ASBRs Eth0/0 add the ip pim dense-mode command.
On both RPs add the ip pim bsr-border command.
Answer: D, BSR Border
QUESTION 36
What is the main advantage of H-VPLS over VPLS?
A. H-VPLS provides redundancy.
B. H-VPLS provides security.
C. H-VPLS improves the scalability.
D. H-VPLS allows a broader use of protocols.
Answer: C, Scalability
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QUESTION 37
In a Layer 2 VPN service, which is the default behaviour 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
Answer: A, EVC keeps the VLAN tag
QUESTION 38
Which of these is not a component of MPLS traffic engineering?
A. trunk admission control
B. forwarding traffic to tunnel
C. information distribution
D. path selection, calculation, and setup
E. traffic patterns prediction
Answer: E, MPLS TE cannot do predictions
QUESTION 39
Which three statements about MPLS traffic engineering (MPLS TE) are true? (Choose
three)
A. MPLS TE supports admission control.
B. MPLS TE tunnel traffic is a link attribute to compute the TE tunnel path.
C. MPLS TE uses BGP extension to advertise link attributes.
D. MPLS TE provides protection capability.
E. MPLS TE uses RSVP to establish LSP.
Answer: ADE, admission control, protection and RSVP for LSP
QUESTION 40
Which statements about BGP confederation and route reflectors are true? (Choose three)
A. Clusters are used in confederation schemes to avoid loops.
B. BGP network can have a confederation within a route reflector area.
C. An internal BGP network cannot have a route reflector within a confederation.
D. An internal BGP network can have a route reflector within a confederation.
E. Clusters are used in route reflector schemes to avoid loops.
F. BGP network cannot have a confederation within a route reflector area.
Answer: DEF, RR in confederation Ok, no confederation in RR.
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QUESTION 41
Which is the RP address of the IPv6 multicast address FF76:0:130:1234:5678:9abc::4321?
A. 4321:5678:9abc::30
B. 4321:5678:9abc::13
C. 1234:5678:9abc::130
D. 1234:5678:9abc::1
E. 1234:5678:9abc::13
Answer: D
QUESTION 42
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
Answer: A, explicit null with pipe mode
QUESTION 43
Drag and Drop Questions
Answer:
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QUESTION 44
Which is the main goal of BGPsec regards to improve BGP security?
A. Reduces risk of improper route propagation from unauthorized AS numbers
B. Configures BGP route verification by storing routes in a database used to
validate AS numbers
C. Adds encryption to route propagation outside the iBGP AS
D. Increases legitimacy and authenticity of BGP advertisements
Answer: D, authenticity of BGP advertisements, it validates the ASPATH
QUESTION 45
Drag and Drop Questions
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Answer:
It always changes when sent to eBGP and doesn’t change to iBGP.
QUESTION 46
What is the BGP synchronization rule?
A. BGP should not advertise a route until that route has been learned via an IGP.
B. Routing information received through an eBGP session is not forwarding to another
iBGP neighbor, only to iBGP neighbors.
C. BGP neighbor peering are established and synchronized using TCP.
D. BGP should not advertise a route when that route has been learned via an IGP
E. Routing information received through an iBGP session is not forwarding to another
iBGP neighbor, only to eBGP neighbors.
Answer: A, only routes learned via IGP are advertised.
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QUESTION 47
Refer to the exhibit. R2 and R3 cannot install IS-IS IPv6 routes. What is the root cause?
A. R2 is missing the metric-style wide command under the IS-IS process.
B. R3 is missing the multi-topology transition command under the IS-IS address-family
IPv6 process.
C. R2 is missing the multi-topology command under the IS-IS address-family IPv6 process.
D. R3 is missing the metric-style wide command under the IS-IS process.
Answer: B
QUESTION 48
Which statement about Software Maintenance Upgrade is true?
A. CRS-1 SMU can be applied to a different platform, and vice versa.
B. SMU is an executable code for running a process or libraries that are shared
between the different processes.
C. SMUs for each release are individually downloadable from Cisco.com and come in
the form of a tar ball.
D. SMUs provide software fixes for critical network down and qualification blocking
issues. Therefore, every software defect has a corresponding SMU.
E. SMUs are release-specific. If an issue affects multiple platforms or releases, an
SMU is built separately for each release and each platform.
Answer: E, release-specific.
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QUESTION 49
Which three statements about the Cisco MPLS TE Fast Reroute (FRR) process are true?
(Choose three.)
A. TE tunnels that are configured with the FRR option cannot be used as backup
tunnels.
B. TE tunnels that are configured with the FRR option can be used as backup tunnels.
C. The backup tunnel that is used to protect a physical interface must have a valid IP
address configured.
D. Interfaces must use MPLS global label allocation.
E. The source IP address of use backup tunnel and the merge point (MP) should not be
reachable.
Answer: ACD, FRR cannot be a backup
QUESTION 50
Refer to the exhibit. Two MPLS TE tunnels are configured with a total bandwidth
guarantee of 100 Mbps. However, Tunnel 1 has a requirement to have one-fifth of this total
bandwidth. Which two configurations accomplish this goal? (Choose two.)
A. Configure tunnel mpls traffic-eng bandwidth 20000 under the Tunnel 1 interface.
B. Configure bandwidth 20000 under the Tunnel 1 interface.
C. Configure tunnel mpls traffic-eng bandwidth 80000 under the Tunnel 2 interface.
D. Configure bandwidth 80 Mbps under physical interfaces in the path PE1-P2-PE2.
E. Configure bandwidth 20 Mbps under physical interfaces in the path PE1-P1-PE2
F. Configure bandwidth 80000 under the Tunnel 2 interface.
Answer: AC, TE BW under the Tunnel interfaces.
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QUESTION 51
With the BGP peerings shown, which 3 solutions are most correct? (Choose three.)
A. rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the
same cluster.
B. rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the
different cluster.
C. rtrA, rtrB and rtrC are part of a confederation sub-AS and rtrD is part of a different
confederation sub-AS
D. rtrA, rtrB are part of one confederation sub-AS and rtrC, rtrD are part of a different
confederation sub-AS
E. rtrA, rtrB and rtrC are part of a confederation sub-AS where rtrB is a route reflector and
rtrA, rtrC are route reflector-clients.
Answer: BDE
QUESTION 52
Drag and Drop Questions
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Answer: B1 – section, B2 – line, B3 - path
QUESTION 53
What is the default BGP scanner time?
A. 10 minutes
B. 5 minutes
C. 120 seconds
D. 60 seconds
E. 30 minutes
Answer: D
QUESTION 54
What ISIS TLVs are used to support MPLS Traffic Engineering? (Choose three).
A. Extended IS neighbor TLV #22
B. Extended IS name TLV #137
C. Extended IS resource TLV #138
D. Extended IS reachability TLV #135
E. Router ID TLV #134
Answer: ADE (22, 134, 135)
QUESTION 55
A Service Provider connects to a client site that has two CEs. These CEs have a backdoor
link for backup. OSPF is used as the routing protocol in this environment. You want to
ensure that client traffic prefers the service provider connections for routing instead of the
secondary connection. Which option describes the default behaviour and the action that
accomplishes your goal?
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A. The routes to the Service Provider are not preferred, due to the increased OSPF cost
through the service provider network. Ensure that the cost on the links to the service
provider are lower than the secondary connection.
B. The routes to the Service Provider are seen as external type 1 in the OSPF database.
Configure a domain ID that is the same across all PEs, to ensure that customers see routes
as intra-area.
C. The routes to the Service Provider are seen as interarea OSPF routes through the
network. Configure a sham link to create a new intra-area path across the service provider
network between the PE routers that service the client.
D. The routes to the Service Provider are seen as equal and cause nondeterministic traffic
patterns. Ensure that the secondary connection has a higher cost than the links to the service
provider.
Answer: C, Sham Link
QUESTION 56
Which two statements about OSPF IPv6 routing are true? (Choose two)
A. It requires OSPF version 3.
B. Automatically detects neighbors over NHMA interfaces
C. It supports encryption using
D. It uses LSA type 9
E. It uses LSA type 8
Answer: AE
QUESTION 57
Which two statements about forwarding equivalence class (FEC) are true? (Choose two)
A. FEC might correspond to a destination IP subnet, but it might also correspond to any
traffic class that the edge LSR considers significant.
B. FEC is a group of IP packets that is forwarded over a different path, but with the same
forwarding treatment.
C. FEC is a group of IP packets that is forwarded over the same path, and with the same
forwarding treatment.
D. FEC is a group of IP packets that is forwarded over a different path, but with the
different forwarding treatment.
E. FEC is a group of IP packets that is forwarded over the same path, but with a different
forwarding treatment.
Answer: AC
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QUESTION 58
Refer to the exhibit. Which attached circuit interface shown uses VC Type 4?
A. Gi8/0/1
B. AT1/0
C. Se5/0
D. ATM2/0
E. Gi4/0.1
Answer: E
QUESTION 59
Which three choices are BGP Extended communities used in MPLS-VPN deployment?
(Choose three).
A. Site of Origin SOO
B. Route-Distinguisher
C. Route-Target
D. Domain Identifier
Answer: ACD
QUESTION 60
An engineer is working to provide high availability to a Service Provider core network.
Which BGP command enables a backup path to be installed in the RIB and CEF tables?
A. maximum-paths ibgp
B. bgp additional-paths install
C. maximum-paths eibgp
D. bgp additional-paths select
E. bgp advertise-best-external
Answer: B, additional-paths install
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QUESTION 61
In the IS-IS Designated Intermediate System (DIS) election process, which criteria is used
for DIS selection?
A. highest router ID first, then highest priority
B. highest MAC address first, then highest priority
C. highest router ID first, then highest MAC address
D. highest priority first, then highest router ID
E. highest priority first, then highest MAC address
Answer: E
QUESTION 62
Refer to the exhibit. If the SP network is configuring RTBH filtering to protect hosts on the
152.68.19.0/24 network, which router should be configured as the black hole activating
router?
A. F
B. C
C. D
D. L
E. A
F. K
Answer: D, Router L (Sinkhole would be D, and Black hole L)
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QUESTION 63
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 the autotunnel primary feature.
D. Enable Cisco MPLS TE Fast Reroute.
E. Enable the autotunnel backup feature.
Answer: B, just enable FRR
QUESTION 64
The show ip ospf database external command displays info about which OSPF LSA type?
A. LSA type 1
B. LSA type 2
C. LSA type 7
D. LSA type 3
E. LSA type 9
F. LSA type 5
Answer: F, 5 are EXTERNAL
QUESTION 65
Which three statements about the secure domain router are true? (Choose three.)
A. The logical router can span across chassis.
B. The fabric and system controller module are shared by all logical routers.
C. Each logical router has a distinct fabric and system controller module
D. The logical router can share a route processor
E. The logical router cannot share a route processor.
Answer: ABE, Fabric and System controller are shared, Processor is not.
QUESTION 66
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
Answer: CE
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QUESTION 67
Which three protocols use TLVs to carry attributes? (Choose three.)
A. Cisco Discovery Protocol
B. Label Discovery Protocol
C. Border Gateway Protocol
D. OSPF
E. RIP version 2
Answer: ABC
QUESTION 68
Refer to the exhibit. An ISP engineer has been asked to identity a method to protect the PE
and to control the number of BGP prefixes learned from his customers. The BGP session
should be dropped if the PE router receives more than 1000 BGP prefixes. A syslog
message should be generated when the number of BGP prefixes learned from CE exceeds
850.
Which Cisco IOS command should the engineer apply on PE routers?
A. neighbor 10.1.1.2 maximum-prefix 1000 85
B. neighbor 10.1.1.2 maximum-prefix 1000 850
C. neighbor 10.1.1.2 maximum-prefix 1000 85 warning-only
D. neighbor 10.1.1.2 maximum-prefix 1000 850 warning-only
Answer: A
QUESTION 69
Which methods would enable traffic to be forwarded along MPLS TE tunnel (Choose 4.)
A. MP-BGP routing
B. Static routing
C. Policy routing
D. Autoroute
E. Forwarding adjacency
Answer: BCDE