Download Cisco.BriefMeNowOrg.300-320.2018-01-31.1e.444q.vcex

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Exam CCDP - Designing Cisco Network Service Architectures (ARCH)
Number 300-320
File Name Cisco.BriefMeNowOrg.300-320.2018-01-31.1e.444q.vcex
Size 7.44 Mb
Posted January 31, 2018
Downloads 46
Download Cisco.BriefMeNowOrg.300-320.2018-01-31.1e.444q.vcex

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Demo Questions

Question 1

What is one limitation of MPLS Layer 3 VPN networks?

  • A: They require less powerful routers with limited capabilities
  • B: They require the customer to control routing
  • C: They support only IP traffic
  • D: PE routers are underutilized

Correct Answer: C




Question 2

Which option does the FabricPath technology use to create loop-free Layer 2 networks?

  • A: STP
  • B: TTL
  • C: fabric tags
  • D: FSTP

Correct Answer: B

Well, the dump said "TTL" and I think that's not entirely true. TTL ends up a looping packet but the loop can still be there. Fabric path uses IS-IS and the concept of "switch-ids" which could refer to "fabric tags"...
There are also the FTag (Forwarding Tag) which specifies which path the packet traverses... Not very clear.
If the Q was something like: "Which option does the FabricPath technology use to mitigate Layer 2loops?"
I would have answered TTL.
Loop prevention and mitigation is available in the data plane, helping ensure safe forwarding that cannot be matched by any transparent bridging technology. Cisco FabricPath frames include a timeto-live (TTL) field similar to the one used in IP, and a reverse-path forwarding (RPF) check is also applied.
http://www.cisco.com/c/dam/en/us/products/collateral/switches/nexus-7000-series-switches/at_a_glance_c45-605626.pdf
The advantages of using FabricPath include:
Layer 2 forwarding table based a shortest-path-first calculation.
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/guide_c07-690079.html




Question 3

What is the recommended radius of a cell for a voice-ready wireless network?

  • A: 6 dBm
  • B: 7 dBm
  • C: 19 dBm
  • D: 5 dBm
  • E: -67 dBm
  • F: 86 dBm

Correct Answer: E

https://www.safaribooksonline.com/library/view/foundation-learning-guide/9780132652933/app03.html
Recommendations for VoWLAN deployment include the following:
A cell radius of 67 dBm, with a separation of 19 dBm for cells on the same channel.

 




Question 4

Which four options are network virtualization technologies that are employed in the data center? (Choose four.)

  • A: VLAN
  • B: VSAN
  • C: VRF
  • D: VRP
  • E: VLC
  • F: VPC

Correct Answer: ABCF




Question 5

Which two elements comprise the backbone area while designing a new network utilizing IS-IS as the interior gateway protocol (choose two)

  • A: contiguous chain of Level 2 capable routers
  • B: contiguous chain of Level1/Level 2 capable routers
  • C: set of Level 2 configured interfaces
  • D: contiguous Level 1 capable routers
  • E: set of Level 1 configured interfaces

Correct Answer: AB

https://www.cisco.com/en/US/products/ps6599/products_white_paper09186a00800a3e6f.shtml
"Backbone IS-IS does not have a backbone area like the OSPF area 0. The IS-IS backbone is a contiguous collection of Level 2-capable routers, each of which can be in a different area"
http://www.ciscopress.com/articles/article.asp?p=26850&seqNum=3
"In most designs with routing hierarchy, the Level 2 routers are also Level 1 routers by virtue of their identification with a certain area. Therefore, in IS-IS, a router can function as Level 1-only or Level 2-only and possibly as both Level 1 and Level 2 (Level 1-2). Level 1-2 routers act as border routers to their respective areas, providing connectivity to other areas. The Level 2 backbone is essentially a virtual IS-IS area consisting of routers engaged in Level 2 routing"




Question 6

What two sensor types exist in an IDS/IPS solution? (Choose two.)

  • A: host
  • B: anomaly based
  • C: policy based
  • D: network based
  • E: signature

Correct Answer: AD




Question 7

Which option is a benefit of the vPC+ feature?

  • A: Cisco FabricPath is not required in the network domain.
  • B: This feature provides fault domain separation
  • C: Nonfabric devices, such as a server or a classic Ethernet switch, can be connected to two fabric switches that are configured with vPC.
  • D: The control plane and management plane are combined into one logical plane.

Correct Answer: C




Question 8

A network engineer must perform posture assessments on Cisco ASA remote access VPN clients and control their network access based on the results. What mode is the Cisco best practice NAC deployment design for this situation?

  • A: Layer 2 in-band real IP gateway mode
  • B: Layer 2 out-of-band real IP gateway mode
  • C: Layer 3 in-band virtual gateway mode
  • D: Layer 3 out-of-band virtual gateway mode

Correct Answer: C

https://www.cisco.com/c/en/us/products/collateral/security/nac-appliance-clean-access/product_data_sheet0900aecd802da1b5.html
Passing traffic mode
Client access mode
Traffic flow model




Question 9

Which three options are basic technical metrics that a good SLA includes? (Choose three.)

  • A: packet loss
  • B: devices
  • C: latency
  • D: clients
  • E: IP availability
  • F: distance

Correct Answer: ACE




Question 10

What is an advantage of using the vPC feature in data center environment ?

  • A: All available uplinks bandwidth is used.
  • B: FHRP is not required
  • C: A single IP is used for management of both devices
  • D: The two switches form a single control plane

Correct Answer: A

A virtual PortChannel (vPC) allows links that are physically connected to two different Cisco Nexusâ„¢ 5000 Series devices to appear as a single PortChannel to a third device. The third device can be a Cisco Nexus 2000 Series Fabric Extender or a switch, server, or any other networking device.










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