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The CCIE Service Provider exam validate professionals who have the expertise to design, implement, diagnose, and troubleshoot complex Service Provider highly available network infrastructure and services based on dual stack solutions (IPv4 and IPv6); understand how the network and service components interoperate; and understand the functional requirements and translate into specific device configurations.

Free test Cisco CCIE Service Provider 400-201 Exam questions and Answers

QUESTION 1
In Ethernet Aggregation applications, which option is needed when the U-PE connects to an N-PE and broadband
remote access server?
A. Ethernet Multipoint Service
B. E1
C. VPLS
D. DSLAM
E. wire emulation
Correct Answer: D

QUESTION 2
What does UDLD stand for?
A. UniDirectional Loop Detection
B. Unspecified Distribution Label Detection
C. Unified Distribution Label Direction
D. UniDirectional Link Detection
Correct Answer: D

QUESTION 3
An ISP has hundreds of routers that run IS-IS on its network. The ISP is currently redesigning the network, to improve
performance and convergence. Which two IS-IS features meet the ISP requirements when changes happen on the
network? (Choose two.)
A. IP Event Dampening
B. Bidirectional Forwarding failure detection
C. tuning of IS-IS hello parameters
D. tuning of SPF PRC and LSP generation exponential backoff timers
E. IS-IS fast flooding of LSPs
Correct Answer: DE
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-s/irs-15-s-book/irs-fscnt.html

QUESTION 4
Which two characteristics are benefits of MPLS LDP lossless MD5 session authentication? (Choose two.)
A. It allows for asymmetric passwords.
B. It uses the MPLS LDP targeted hello, which is authenticated, instead of the regular MPLS LDP hello, which cannot be
authenticated.
C. It allows you to achieve or change LDP MD5 session authentication without interrupting the LDP session.
D. It uses the MD5 method, which is a more secure authentication method than traditional MPLS LDP authentication,
which uses a cleartext method.
E. It enables authentication for UDP MPLS LDP discovery packets as well as TCP MPLS LDP label exchange
sessions.
Correct Answer: AC
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-
os/mpls/configuration/guide/mpls_cg/mp_ldp_lossless_md5.pdf

QUESTION 5
A service provider is offering VoIP services level agreement to customers. Which configuration provides validation that
the service level agreement has been honored?
A. ipsla 999 udp-jitter 209.165.200.225 1000 codec g729a tag VoIP-SLA ipsla schedule 999 life forever start-time now
B. ipsla 999 icmp-jitter 209.165.200.225 tag VoIP-SLA ipsla schedule 999 life forerver start-time now
C. ipsla 99 icmp-jitter 209.165.200.225 tos 160 ipsla schedule 999 life forever start-time now
D. ipsla 999 udp-jitter 209.165.200.225 tos 160 ipsla schedule 99 life forever start-time now
E. ipsla 999 udp-jitter 209.165.200.225 tos 160 ipsla schedule 999 life forever start-time now
F. ipsla 999 udp-jitter 209.165.200.225 1000 codec g729a tos 160 ipsla schedule 99 life forever stat-time now
Correct Answer: F

QUESTION 6
Which statement about provider-independent and provider-assigned address blocks is true?
A. There is no difference.
B. PI space is not globally routable and can be used as private addressing.
C. PA space is globally routable and can be obtained from IANA by all organizations.
D. PA space is assigned by the ISP and PI space is assigned by the regional registry. Both are globally routable.
E. PI and PA blocks are both assigned by the regional registry to all organizations.
Correct Answer: D

QUESTION 7
Which protocol provides an alternative to the STP, which provides a way to control network loops, handle link failures,
and improve convergence time and can coexist with STP?
A. PBB-EVPN
B. IEEE 802.1ah
C. Flex links
D. E-TREE
E. REP
Correct Answer: E

QUESTION 8
IPv6 multicast is enabled in a VPLS domain. An operations engineer must reduce the multicast flooding in this VPLS
domain. Which feature constrains IPv6 traffic at Layer 2 by configuring Layer 2 ports dynamically to forward IPv6
multicast traffic only to those ports that want to receive it?
A. IGMP snooping
B. MLD snooping
C. MLD querier
D. IGMP version 3
E. MLD version 2
Correct Answer: B

QUESTION 9
Refer to the exhibit. leads4pass 400-201 exam question q9

Routers R1 and R2 have exchanged label binding information. What is preventing the labels from populating the MPLS
forwarding table?
A. MTU on the serial interface cannot accommodate labels.
B. Cisco Express Forwarding is not running.
C. The MPLS label distribution protocol is mismatched.
D. Inbound access list 100 is applied on the serial interface.
Correct Answer: B

QUESTION 10
Which two options describe how 6RD compares to automatic 6to4 tunneling? (Choose two.)
A. 6RD provides a controlled exit point from the IPv6 Internet.
B. 6RD provides a controlled entry point to the IPv6 Internet.
C. 6RD is widely available in current OS implementations.
D. Automatic 6to4 tunneling is widely available in current OS implementations.
E. Automatic 6to4 tunneling and 6RD use a well-known IPv6 prefix.
Correct Answer: BD

QUESTION 11 leads4pass 400-201 exam question q11

Refer to the exhibit AS 200 uses the CSC solution provided by AS 100 with regards to the packets originated on ABC-
Site2 going toward to ABC-Site1, how many labels are in the label stack of these packets when they cross the link
between CSC-PE2 and CS-P?
A. 1
B. 2
C. 3
D. 4
Correct Answer: C

QUESTION 12
Which two factors are significant drivers for 5G in IoT networks? (Choose two.)
A. Programmability
B. Energy Efficiency
C. Mass Connectivity
D. Higher data rates
E. Lower Latency
Correct Answer: DE

QUESTION 13 leads4pass 400-201 exam question q13

Refer to the exhibit. Which physical interface provides the clock information?
A. Gi0/4
B. Gi0/11
C. Gi0/10
D. Gi0/5
Correct Answer: C

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400-201 dumps

Best Cisco CCIE Service Provider 400-201 dumps exam questions and answers (1-20)

QUESTION 1
What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonode environment? (Choose three.)
A. updating the pseudonode LSP
B. maintaining pseudonode link-state information
C. creating the pseudonode LSP
D. flooding LSPs over the LAN
E. election of the pseudonode
Correct Answer: ACD

QUESTION 2
Two routers that are running MPLS and LDP have multiple links that than connect them to each other. Anengineer wants to ensure that the label bindings are not flushed from the LIB if one of the links fails. Which configuration meets this requirement?
A. the mpls ldp neighbor targeted command
B. the mpls ip command on a Cisco MPLS TE tunnel
C. the mpls ldp discovery targeted-hello accept command
D. the mpls ldp session protection command
Correct Answer: D

QUESTION 3
Refer to the exhibit.
400-201 dumps
The 2.6.6.6/32 prefix is flapping when PE1 is flapping. Which action can fix this issue?
A. On PE2, allow only redistribution from BGP into IS-IS; on PE3, allow only redistribution from IS-OS into BGP.
B. Configure all IS-IS instances as level-1-only.
C. Configure a sham link between PE2 and PE3.
D. On PE2 and PE3, reconfigure redistribute BGP into IS-IS using the metric-type external parameter.
Correct Answer: D

QUESTION 4
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 thus behavior? 400-201 dumps
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.
Correct Answer: C

QUESTION 5
Refer to the exhibit.
400-201 dumps
Which MPLS TE component keeps track of the flooding and admission control?
A. MPLS TE priorities
B. RSVP
C. link attributes
D. link manager
Correct Answer: D

QUESTION 6
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
Correct Answer: D

QUESTION 7
Which two models are used in MPLS TE bandwidth constraints? (Choose two)
A. mdm
B. rdm
C. bdm
D. mam
E. tern
Correct Answer: BD

QUESTION 8
In a typical three-node OpenStack deployment, which two components are part of the controller node? (Choose two)
A. Neutron Layer 3 agent
B. Neutron DHCP agent
C. Identity Service
D. Neutron Layer 2 agent
Correct Answer: AD

QUESTION 9
What are the two benefits of graceful restart? (Choose two)
A. Graceful restart allows session information recovery without disruption to the network.
B. A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kept on state information, which helps the failed node recover faster and does not affect the current forward traffic.
C. Graceful restart allows a node to recover state from its neighbor when there is no RP or before the device undergoes SSO.
D. Graceful restart does not allow session information recovery.
E. During a graceful restart, the router removes any stale prefixes after a timer for stale entries expires
Correct Answer: AB

QUESTION 10
Which three statements about the BGP next-hop attribute are true? (Choose three.)
A. EBGP sessions between confederation sub ASs do not modify the next-hop attribute.
B. By default, iBGP sessions change the next-hop attribute learned from eBGP peers to self address.
C. By default, the next-hop attribute is not changed when a prefix is reflected by the route reflector
D. EBGP sessions between confederation sub ASs change the next-hop attribute to peer address.
E. By default, iBGP sessions preserve the next-hop attribute learned from eBGP peers.
Correct Answer: ACE

QUESTION 11
A network engineer is responsible for implementing a solution with Cisco IOS XR Software that ensures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? 400-201 dumps (Choose two.)
A. IP FRR
B. NSR
C. graceful restart
D. BFD
E. TE FRR
Correct Answer: BC

QUESTION 12
The Attribute field within the IS-IS LSP header contains which of the following flags? (Choose four)
A. IS-Type
B. Overload (LSPDBOL)
C. Pseudonode (PN)
D. Attached (ATT)
E. Fragment (Frag-Nr)
F. Partition (P)
Correct Answer: ABDF

QUESTION 13
One ISP has hundreds of routers that run IS-IS, you want to redesign the network to improve performance and convergence, which are correct ways? (Choose two)
A. Bidirectional forwarding failure detection
B. tuning of SPF PRC and LSP.......exp backoff timers C. IS-IS fast flooding of LSPs
C. IP Event Dampending
D. tuning of IS-IS hello parameters
Correct Answer: BC

QUESTION 14
Refer to the exhibit.
400-201 dumps
The prefix 10.1.1.64/28 should be advertised to the PE router, yet the prefix is not being received by the PE. Which configuration should be applied on CE in order to fix this issue?
A. ip prefix-list ROUTES_TO_SP seq 1 permit 10.1.1.64/28
B. router bgp 65000no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.128 mask 255.255.255.128
C. ip prefix-list ROUTES_TO_SP permit 10.1.1.64/28
D. router bgp 65000no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.0 mask 255.255.255.0
Correct Answer: A

QUESTION 15
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
Correct Answer: C

QUESTION 16
Refer to the exhibit.
400-201 dumps
Which router is the DIS?
A. router-22
B. router-44
C. router-33 and router-44
D. router-11
E. router-33
Correct Answer: E

QUESTION 17
Which is one difference between H-VPLS and VPLS? 400-201 dumps
A. VPLS is a point-to-point Layer-2 services and H-VPLS is a multipoint Layer-2 services.
B. H-VPLS reduces signaling overhead and packet replication requirementsfor the provider edge.
C. VPLS improve scalability concerns identified on H-VPLS implementation.
D. H-VPLS connects using also other Layer-2 encapsulation such as PPP and VPLS connects using
Ethernet encapsulation only
Correct Answer: B

QUESTION 18
A network engineer wants to deploy a solution that allows for 200 DS1 s and 100 DS0s that are multiplexed to a single interface on a Cisco 7600 Series Router. Which interface type satisfies this requirement?
A. Channelized T3/E3 (DS0)
B. Channelized OC-12/STM-4
C. OC-12/STM-4
D. OC-48c/STM-16
Correct Answer: A

QUESTION 19
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
Correct Answer: A

QUESTION 20
With EIGRP DUAL, a feasible successor is considered loop-free if which condition is true?
A. Its AD is equal to the metric of the successor
B. Its AD is less than the successor's FD
C. Its AD is equal to the successor's FD
D. Its AD is greater than the successor's FD
E. Its FD is equal to the metric of the successor
Correct Answer: B

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