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Exam Code: 400-201
Exam Name: CCIE Service Provider Written Exam Version 4.0
Updated: Jul 29, 2017
Q&As: 451

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400-201 dumps

Pass4itsure Latest and Most Accurate Cisco 400-201 Dumps Exam Q&As 

DEMO
QUESTION 1
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? (Choose two.)
A. IP FRR
B. NSR
C. graceful restart
D. BFD
E. TE FRR
400-201 exam Correct Answer: BC
QUESTION 2
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 3
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
400-201 dumps Correct Answer: BC
QUESTION 4
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 5
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
400-201 pdf Correct Answer: C
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
400-201 vce 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
400-201 exam 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
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
400-201 dumps Correct Answer: ACD
QUESTION 12
Two routers that are running MPLS and LDP have multiple links that than connect them to each other. An
engineer 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 13
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.
400-201 pdf Correct Answer: D
QUESTION 14
Refer to the exhibit.
400-201 dumps

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?
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 15
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
400-201 vce Correct Answer: D
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

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