[Free] 2017(Apr) Ensurepass Examcollection Cisco 400-201 Latest Dumps 41-50

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CCIE Service Provider Written Exam v4.1

QUESTION 41

Which BGP feature protects the external BGP peering session from CPU utilization-based attacks that use forged IP packets?

 

A.

BGP multihop

B.

TTL security check

C.

BGPFIowSec

D.

Secure BGP

 

Correct Answer: B

 

 

QUESTION 42

Which timing over Packet Solution provides only accurate frequency synchronization, but does not provide time/phase synchronization?

 

A.

timing over IP connection and transfer of clock BOF.

B.

Precision Time Protocol.

C.

Synchronous Ethernet.

D.

Network Time Protocol.

 

Correct Answer: C

 

 

QUESTION 43

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 fromCisco.comand 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.

 

Correct Answer: E

Explanation:

SMUs for each release are individually downloadable fromCisco.com, whereas the bootable files and optional PIEs come in the form of a tarball. SMUs are release specific. If an issue affects multiple platforms or releases, an SMU will be separately built for each release and each platform

 

 

QUESTION 44

Which two VPN Inter-AS options require the no bgp default route-target filter command? (Choose two.)

 

A.

MPLS VPN Inter-AS with ASBRs exchanging VPN-IPv4 addresses

B.

MPLS VPN Inter-AS with ASBRs exchanging IPv4 routes and MPLS labels

C.

MPLS VPN Inter-AS Option AB

D.

MPLS VPN Carrier Supporting Carrier using LDP and IGP

E.

MPLS VPN Carrier Supporting Carrier with BGP

F.

MPLS VPN eBGP multipath support for CSC

 

Correct Answer: AC

 

 

QUESTION 45

A network engineer wants to deploy a VPLS service within the MPLS backbone. The backbone expert team advises that LDP for signaling is used. Which two characteristics of LDP would influence their decision? (Choose two.)

 

A.

BGP does not need to be run on the PE device.

B.

Non-convergence with IP VPN operation.

C.

There is no autodiscovery.

D.

LDP signaling requires a loopback-based router ID.

E.

CDP is not required on the PE routers.

 

Correct Answer: AC

 

 

QUESTION 46

DRAG DROP

Refer to the exhibit.PE1 and PE2 has a Layer 2 VPN over a GRE tunnel. This GRE tunnel built between P1 and P2 has LDP enabled. Consider a packet capture of the packets from CE1 and CE2 at P1 and R1 link. Drag the headers on the left and drop them on the right in the order of the encapsulation, starting from the inner header (at the top) to the outer header (at the bottom).

 

clip_image002

clip_image004

 

Correct Answer:

clip_image006

 

 

QUESTION 47

Refer to the exhibit. Your customer has enabled IPv6 and IPv4 on routers R1 and R2, both running ISIS routing protocol, and they can no longer reach R3 network 172.26.15.0/24 (R3 does not enable IPv6, enables IPv4 only). Which two steps should be taken to restore reach ability to R3? (Choose two.)

 

clip_image008

 

A.

Enable 0SPFv3 to support IPv4 and IPv6 simultaneously.

B.

Configure static routes to all unreachable networks and redistribute to IS-IS.

C.

Create an IPv6 tunnel from R2 to R3.

D.

Transition to IS-IS Multiple Topology Mode on R3.

E.

Enable wide metrics.

F.

Transition to IS-IS Multiple Topology Mode on R1 and R2.

 

Correct Answer: EF

 

 

QUESTION 48

Which standard provides insurance that the new hardware rollout plan meets certain environment design guidelines before deployment?

 

A.

NAS

B.

eTOM

C.

ITIL?

D.

NEBS

E.

COBIT

 

Correct Answer: C

 

 

QUESTION 49

A company is deciding between an HVR and SVR solution in order to finalize a virtualization project proposal. Which is an advantage of a HVR solution versus a SVR 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.

 

Correct Answer: A

Explanation:

Comparison of Virtualized Routing Architectures

Category

Hardware-Isolated Virtual Router

Software-Isolated Virtual Router

Control plane resources (CPU, memory)

Dedicated

Shared

Data plane resources (forwarding engine, queues) Dedicated

Shared

Chassis resources (power supplies, blowers, fabric) Shared

Shared

Management, configuration

Dedicated

Typically shared, but varies depending on degree of virtualization Connections between virtualized routing entities Typically external

Typically internal, but possibly external

Per-chassis scalability (routing adjacencies, prefixes)

Increased with additional logical routers

Unaffected by additional virtual routers

 

Reference:

http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c11-512753_ns573_Networking_Solutions_White_Paper.html

 

 

QUESTION 50

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

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