Actual Exam Questions For Cisco 400-201

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Question No. 1

Refer to the exhibit.

Refer to the exhibit PIM sparse mode is implemented in the network RPF succeeds under which condition?

Answer: D

Question No. 2

Refer to the exhibit.

AS 100 for ABC sites is used to carry XYZ customer traffic over ISP network. All routing between CEs to PEs are BGP-based. XYZ site 1 reports that it cannot reach XYZ site 2, although the destination network is installed in its routing table.

Which statement describes the cause of the problem?

Answer: D

Question No. 3

Refer to the exhibit.

Refer to the exhibit. A company has four office locations, which are identified as 1,2,3 and 4. The PE routers at these locations have assigned RDs of 10:10 , 20:20, 30:30 and 40:40, respectively Locations 1 and 3 need to share routing information

Which set of configurations allows for this requirement?

Answer: E

Question No. 4

Which option is the benefit of per-link LFA over per-prefix LFA?

Answer: C

Question No. 5

A security agency wants to use the services of the service provider to interconnect the remote sites. However, they do not want to share the IP addresses of their sites and they want end-to-end security.

Which three services meet the design requirements? (Choose three.)

Answer: A, B, C

Question No. 6

What is a limitation of implementing uRPF?

Answer: D

Question No. 7

You have a Cisco 7600 Series Router with two route processors installed and with SSO enabled. Which three conditions must apply? (Choose three.)

Answer: A, E, F

Question No. 8

Select the three best answers which best describe Private Network-to Network Interface (PNNI) in an ATM network (Choose three.)

Answer: A, B, D

The Private Network-to-Network Interface (PNNI) is a link-state routing protocol used in ATM networks. PNNI is similar to the open shortest path first (OSPF) used for IP routing.

PNNI is a suite of network protocols that can be used to discover an ATM network topology, create a database of topology information, and route calls over the discovered topology. PNNI is a link-state routing protocol, which means that the protocol collects information about the current state of links and nodes in the network to build a network database. The PNNI network database can be used to determine the network structure and the current state of network components. To build the PNNI network database, each PNNI node must receive topology information from all the other devices in the network. To keep the database current, the node must receive regular updates from other nodes.

Question No. 9

A service provider engineering team must design a solution that supports end-to-end LSPS for multiple IGP domains within different AS numbers. According to RFC 3107, which solution achieves this goal?

Answer: B

Question No. 10

ATM carries IP and PPP information with ATM cells. What ATM adaptation Layer is used when an ATM cell carries IP packets and PPP frames?

Answer: D

Question No. 11

What is MPLS VPN component used by Multi-VRF solution?

Answer: B

Question No. 12

Which statement is FALSE concerning Concatenation?

Answer: B

Question No. 13

Which statement about SNMP is true?

Answer: E

Proxy agents:

A SNMPv2 agent can act as a proxy agent on behalf of SNMPv1 managed devices, as follows:

A SNMPv2 NMS issues a command intended for a SNMPv1 agent.

The NMS sends the SNMP message to the SNMPv2 proxy agent.

The proxy agent forwards Get, GetNext, and Set messages to the SNMPv1 agent unchanged.

GetBulk messages are converted by the proxy agent to GetNext messages and then are forwarded to the SNMPv1 agent.

The proxy agent maps SNMPv1 trap messages to SNMPv2 trap messages and then forwards them to the NMS.

SNMPv3 provides important security features:[11]

Confidentiality – Encryption of packets to prevent snooping by an unauthorized source.

Integrity – Message integrity to ensure that a packet has not been tampered while in transit including an optional packet replay protection mechanism.

Authentication – to verify that the message is from a valid source.

Question No. 14

Which three statements about L2TPv3 are true? (Choose three)

Answer: C, D, E

Frame Relay-Specific Restrictions

*Frame Relay per-DLCI forwarding and port-to-port trunking are mutually exclusive. L2TPv3 does not support the use of both on the same interface at the same time.

*The xconnect command is not supported on Frame Relay interfaces directly. For Frame Relay, the Xconnect is applied under the connect command specifying the DLCI to be used.

*Changing the encapsulation type on any interface removes any existing xconnect command applied to that interface.

*To use DCE or a Network-to-Network Interface (NNI) on a Frame Relay port, you must configure the framerelay switching command.

*The configuration of an L2TPv3 session on a Multilink Frame Relay (MLFR) bundle interface is supported only on Cisco 12000 series Two-Port Channelized OC-3/STM-1 (DS1/E1) and Six-Port Channelized T3 (T1) line cards. (For more information, see Binding L2TPv3 Sessions to Multilink Frame Relay Interfaces.) *Frame Relay policing is nondistributed on the Cisco 7500 series. By configuring Frame Relay policing, you cause traffic on the affected PVCs to be sent to the RSP for processing.

*Frame Relay support is for 10-bit DLCI addresses. Frame Relay Extended Addressing is not supported.

*Multipoint DLCI is not supported.

*The keepalive will automatically be disabled on interfaces that have an Xconnect applied to them, except for

Frame Relay encapsulation, which is a requirement for LMI.

*Static L2TPv3 sessions will not support Frame Relay LMI interworking.

Question No. 15

In multicast Inter-AS VPN context, which BGP attribute should you use to overcome the Option B limitation due to a rewritten originator next-hop address in the network.

Answer: C

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