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What is a use case for a two-tier L2 design for a dedicated data center?

A.
Server room adjacent to campus core
A.
Server room adjacent to campus core
Answers
B.
Customers with medium-to-large data centers with application demanding requirements
B.
Customers with medium-to-large data centers with application demanding requirements
Answers
C.
Customers with small-to-medium data centers with less demanding requirements
C.
Customers with small-to-medium data centers with less demanding requirements
Answers
D.
Data Center that is located in a separate building to the campus network
D.
Data Center that is located in a separate building to the campus network
Answers
Suggested answer: C

Mention two disadvantages of the End-of-Row or Middle-of-Row switches in Data Center design

A.
More equipment
A.
More equipment
Answers
B.
Higher latency for rack-to-rack traffic within the row
B.
Higher latency for rack-to-rack traffic within the row
Answers
C.
Longer, more complex cabling within the row
C.
Longer, more complex cabling within the row
Answers
D.
Lower port density and less scalable
D.
Lower port density and less scalable
Answers
Suggested answer: C, D

You are involved in a 2-Tier L2 Data Center Design with the following details:

* CX 8325 100G Core Switches

* CX 10000 48-P 25G Access Switches

* 100G SR4 Optical connections between Core and Access

In this design, both the Core Layer and Access Layer consist of pairs of switches configured in VSX for HA. Core Switches = VSX Pairs of CX 8325 32-port 100G switches (B-F airflow) Each pair uses: * 2 x 100G QSFP28 1M DACs for ISL * 1 x 100G QSFP28 1M DAC for Keepalive * 2 x 100G QSFP28 SR4 Optic to each access switch Each Core switch has 13 available 100G QSFP28 interfaces. What is the maximum number of racks supported by this design?

A.
Solution can scale to 7 total racks using the same subscription rates.
A.
Solution can scale to 7 total racks using the same subscription rates.
Answers
B.
Solution can scale to 14 total racks using the same subscription rates.
B.
Solution can scale to 14 total racks using the same subscription rates.
Answers
C.
Solution can scale to 8 total racks using varying subscription rates.
C.
Solution can scale to 8 total racks using varying subscription rates.
Answers
D.
Solution can scale to 16 total racks using the same subscription rates.
D.
Solution can scale to 16 total racks using the same subscription rates.
Answers
Suggested answer: A

PVLAN (Private VLAN) defines three types of VLANs under the same SVI

A.
Primary VLAN, Isolated VLAN and Customer VLAN
A.
Primary VLAN, Isolated VLAN and Customer VLAN
Answers
B.
Secondary VLAN, Isolated VLAN and Provider VLAN
B.
Secondary VLAN, Isolated VLAN and Provider VLAN
Answers
C.
Primary VLAN, Isolated VLAN and Community VLAN
C.
Primary VLAN, Isolated VLAN and Community VLAN
Answers
D.
Provider VLAN Service VLAN and QinQ VLAN
D.
Provider VLAN Service VLAN and QinQ VLAN
Answers
Suggested answer: C

In MMF OM3 fiber type and SFP28 LC SR transceiver option. What is the maximum distance supported by this setup?

A.
Up to 50 meters
A.
Up to 50 meters
Answers
B.
Up to 70 meters
B.
Up to 70 meters
Answers
C.
Up to 500 meters
C.
Up to 500 meters
Answers
D.
Up to 700 meters
D.
Up to 700 meters
Answers
Suggested answer: B

Mention two advantages of the ToR switches in Data Center Design

A.
Less unused ports on the switches
A.
Less unused ports on the switches
Answers
B.
Possibly less expensive
B.
Possibly less expensive
Answers
C.
Less cable sprawl
C.
Less cable sprawl
Answers
D.
Better issue isolation
D.
Better issue isolation
Answers
Suggested answer: C, D

In defining availability requirements for applications and services, the applications that directly impact health and safety are called

A.
Mission-Critical Applications
A.
Mission-Critical Applications
Answers
B.
Team-Critical Applications
B.
Team-Critical Applications
Answers
C.
Business-Critical Applications
C.
Business-Critical Applications
Answers
D.
Life-Critical Applications
D.
Life-Critical Applications
Answers
Suggested answer: D

You have a customer using Spine and Leaf design with two 8325 32-port 100G QSFP28 (F-B airflow) Spine Switches. What is the maximum number of racks supported if each Rack has two 8360 VSX stacked leaf switches and each spine uses 2 x 100G QSFP28 DACs to each Leaf switch?

A.
Up to 16 total racks using different subscription rates
A.
Up to 16 total racks using different subscription rates
Answers
B.
Up to 4 total racks using the same subscription rates
B.
Up to 4 total racks using the same subscription rates
Answers
C.
Up to 4 total racks using different subscription rates
C.
Up to 4 total racks using different subscription rates
Answers
D.
Up to 8 total racks using the same subscription rates
D.
Up to 8 total racks using the same subscription rates
Answers
Suggested answer: D

In a Spine and Leaf Design with the following specs:

* 8400 100G Spine Switches

* 8360 48-P 10G RJ45 Leaf Switches

* 100G DAC connections between Spine and Leafs

Spine Switches = 8400 with 12 QSFP28 ports (F-B airflow)

Each Spine Switch uses:

* 1 x 100G QSFP28 5M DACs to each Leaf switch

Each Leaf Switch uses:

* 1 x 100G QSFP28 5M DACs to each Spine switch

* 2 x 100G 1M DAC for ISL

* 1 x 10G RJ45 for Keep alive

Each Spine switch can support up to 48 available 100G QSFP28 interfaces.

What is the scalability for this solution?

A.
Solution can scale to 24 total racks using the same subscription rates.
A.
Solution can scale to 24 total racks using the same subscription rates.
Answers
B.
Solution can scale to 6 total racks using the same subscription rates.
B.
Solution can scale to 6 total racks using the same subscription rates.
Answers
C.
Solution can scale to 12 total racks using the same subscription rates.
C.
Solution can scale to 12 total racks using the same subscription rates.
Answers
D.
Solution can scale to 48 total racks using the same subscription rates.
D.
Solution can scale to 48 total racks using the same subscription rates.
Answers
Suggested answer: A

In L3 spine and leaf design:

A.
Spanning Tree is always needed since Spine and Leaf is only there to improve performance
A.
Spanning Tree is always needed since Spine and Leaf is only there to improve performance
Answers
B.
You need to use TRILL to prevent loops
B.
You need to use TRILL to prevent loops
Answers
C.
You don't need to use spanning tree for loop prevention
C.
You don't need to use spanning tree for loop prevention
Answers
D.
Since all Spine switches are connected to each other, EVPN is needed in this design
D.
Since all Spine switches are connected to each other, EVPN is needed in this design
Answers
Suggested answer: C
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