[2017 Latest Cisco Questions] Update Latest Cisco 400-201 Dumps Questions And Answers, High Quality 400-201 Dumps PDF Training Materials Free Download

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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

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

Which is the main goal of BGPsec regards to improve BGP security? 400-201 pdf
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

Refer to the exhibit.
400-201 dumps
The prefix is flapping when PE1 is flapping. Which action can fix this issue? 400-201 dumps
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

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

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

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

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

Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources?
Correct Answer: C

With EIGRP DUAL, a feasible successor is considered loop-free if which condition is true? 400-201 dumps
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

A network engineer needs to connect two core switches that use Gigabit Ethernet interfaces in an MPLS backbone and that are separated by a distance of 60 km. 400-201 pdf Which Cisco GBIC achieves this goal?
A. Cisco 1000BASE-T GBIC
B. Cisco 1000BASE-SX GBIC
C. Cisco 1000BASE-LX/LH GBIC
D. Cisco 1000BASE-ZX GBIC
Correct Answer: D

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

Which is one difference between H-VPLS and VPLS?
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

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

In an MPLS VPN environment, the QoS marking over the MPLS backbone must be different from the one that is received from the customer. 400-201 dumps 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

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