[Free] 2017(Oct) EnsurePass Examcollection Cisco 642-996 Dumps with VCE and PDF 81-90

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Designing Cisco Data Center Unified Fabric

Question No: 81

Which is a feature of the Data Center Core layer?

  1. The core layer provides the high-speed packet switching backplane for all flows going in and out of the data center.

  2. The core layer provides the high-speed packet switching backplane for all flows going out of the data center.

  3. The core layer is purely a Layer 2 environment. As a result, the core layer is not free of spanning tree and vPC.

  4. The core layer provides connectivity to multiple aggregation modules and provides a resilient Layer 3 routed fabric with a single point of failure.

Answer: A

Question No: 82

Which feature protects network devices against abnormal or unwanted traffic such as rogue devices performing various DoS attacks against them?

  1. control-plane policing

  2. strict unicast RPF

  3. IP Source Guard

  4. intrusion prevention deployed at the edge

  5. intrusion detection deployed at the services layer

Answer: A

Question No: 83

Layer 2 forwarding of multicast traffic with vPC is based on which modified protocol?

  1. CGMP

  2. PIM SS

  3. Auto-RP

  4. IGMP snooping

  5. Destination-based trees

Answer: D

Question No: 84

Which option is needed to implement MACsec on a Cisco Nexus 7000 device?

  1. Supervisor 2E module

  2. Advanced Security license

  3. RADIUS server

  4. M-Series or F3 line cards

Answer: D

Question No: 85

What three key principals are to be followed when using Appliance ports for NFS traffic with NetApp arrays? (Choose three.)

  1. Must have L2 Ethernet upstream for failure cases, one cannot just deploy a Storage array and UCS hardware.

  2. Minimum of one uplink ports per FI required.

  3. At a minimum pair of 1Gig links per multimode VIF is recommended.

  4. At a minimum pair of 10 Gig links per multimode VIF is recommended.

  5. Always enable IP storage VLAN on the FI uplinks for data traffic failover scenarios.

  6. Always enable VLAN on the FI uplinks for data traffic failover scenarios.

  7. At a minimum pair of 1 Gig links per multimode VIF is recommended.

Answer: A,D,E

Question No: 86

Which innovation in the Cisco NX-OS Software brings an entirely new Layer 2 data plane by encapsulating the frames entering the device with a header that consists of a routable source and destination address?

  1. OTV

  2. MPLS

  3. Routing

  4. RSTP

  5. LISP

Answer: A

Question No: 87

A customer is interested in endpoint security at the access layer, which option is Cisco recommended?

  1. ACLs

  2. DAI

  3. TrustSec

  4. stateful inspection

  5. UDLD

Answer: C

Question No: 88

At which data center layer is IGMP snooping implemented?

A.

access

B.

leaf

C.

core

D.

aggregation

Answer: A

Question No: 89

You are designing the aggregation layer for a data center that will use Cisco Nexus 5000 Series Switches. The data center will have more than 500 Fibre Channel domains. Which configuration is required for the design?

A.

Access switches must be in N Port proxy mode.

B.

Access switches must be in N Port mode.

C.

The SAM director switch must be installed and configured.

D.

DCNM for SAN must be installed and configured.

Answer: C

Question No: 90

Which two items represent attacks that are mitigated by CoPP? (Choose two.)

  1. ARP cache poisoning

  2. data plane DoS

  3. ping flooding

  4. Diffie Hellman

  5. smurf attack

  6. ping of death

Answer: C,E

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