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HPE7-A04 Aruba Certified Data Center Architect Exam Questions and Answers

Questions 4

You are planning to use distributed routing for overlay subnets in an EVPN VXLAN fabric. The customer needs to provide DHCP addresses to some VMs in the tenant-a VRF. The DHCP server is in the shared VRF. What is one step you should take?

Options:

A.

Change the design to use centralized routing because HPE Aruba CX switches cannot support DHCP relay with distributed routing

B.

For every SVI, assign a unique actual IP address, different from the active gateway IP address

C.

On each VTEP switch, create a loopback interface in the shared VRF with the same IP on both switches in a VSX pair

D.

On each VTEP switch, create a loopback interface in the tenant-a VRF with a different IP on both switches in a VSX pair

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Questions 5

What is recommended for the routing protocol setup on leaf VSX pairs?

Options:

A.

Configure the leaf VSX members to establish neighbor relationships with each other over one of the server subnets

B.

Have the VSX members connect to each spine switch on an L3 VSX LAG and become neighbors with each other and the spine on its subnet

C.

Add a dedicated VLAN to the VSX ISL, assign it a /31 subnet, and run the routing protocol on it

D.

Do not configure the routing protocol to run directly between the leaf VSX members

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Questions 6

Name some Post-installation handover tasks

Options:

A.

Ensure new spares have replaced old spares

B.

List of Engineers involved in the project

C.

Number of employees that will benefit from the solution

D.

Schedule training

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Questions 7

Which of the following CX switches support VSF stacking technology?

Options:

A.

6200

B.

8100

C.

6400

D.

6100

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Questions 8

Which CX switch model supports ERPS/VSX DCI?

Options:

A.

5130

B.

8100

C.

8325

D.

2930F

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Questions 9

Which of the following statements is true about HPE and HPE Aruba Networking breakout cables for high-speed ports?

Options:

A.

QSFP56 - > 4x 50 GbE QSFP28

B.

QSFP56 - > 2x 100 GbE QSFP28

C.

QSFP56 - > 8x 10 GbE SFP+

D.

QSFP56 - > 4x 25 GbE SFP28

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Questions 10

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?

Options:

A.

Solution can scale to 7 total racks using the same subscription rates.

B.

Solution can scale to 14 total racks using the same subscription rates.

C.

Solution can scale to 8 total racks using varying subscription rates.

D.

Solution can scale to 16 total racks using the same subscription rates.

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Questions 11

In a multi-AS underlay design

Options:

A.

All spine switches are in the same AS while each leaf (VSX pair if used) are in their own AS

B.

Every spine and every leaf is in their own AS

C.

All spine and leaf switches are in one AS and the border leaf is in separate AS

D.

Every spine is in their own AS while all leaf switches in one AS

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Questions 12

You are recommending HPE Aruba CX switches to a service provider for a Metro Ethernet solution. Which technology is the customer likely to require to allow each customer to stretch multiple VLANs across the Metro Ethernet line?

Options:

A.

VMware NSX integration

B.

RDMA over Converged Ethernet (RoCE)

C.

Data Center Bridging (DCB)

D.

QinQ

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Questions 13

Depending on a switch’s role in the topology, the demands on various tables differ. Several HPE Aruba CX switch models support different profiles, each of which optimizes the correct table for a switch with the corresponding role:

Options:

A.

L3 Aggregates profile allocates more space to the support more overlay host entries table compared to leaf switches

B.

L3 Aggregates profile allocates more space to the routing table compared to L3 core profile

C.

L3 Aggregates profile allocates more space to the ARP/ND table compared to L3 core profile

D.

L3 Aggregates profile allocates more space to the routing table compared to Spine switch

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Questions 14

In a multi-AS underlay design

Options:

A.

You must use eBGP for underlay routing within a leaf and spine topology

B.

Either eBGP or iBGP for underlay routing within a leaf and spine topology will work

C.

This is a wrong design for routing protocol for the underlay

D.

You must use iBGP for underlay routing within a leaf and spine topology

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Questions 15

Which of the following switches support both Front-to-Back and Back-to-Front airflow? (Select two)

Options:

A.

8400

B.

8360

C.

8325

D.

8320

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Questions 16

Which switch model is able to perform microsegmentation?

Options:

A.

CX 10000

B.

CX 8325

C.

CX 8400

D.

CX 8360

E.

CX 6400

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Questions 17

You are planning a leaf and spine topology for a data center. The campus is in a different building; the customer wants to connect the campus network directly to the data center network. To which data center switch or switches do you connect the campus core switches?

Options:

A.

To two service leaf switches, which are dedicated to connecting the spine and leaf topology to external networks

B.

To two L3 edge switches, which are dedicated to connecting the spine and leaf topology to external networks

C.

To two border leaf switches, which are dedicated to connecting the spine and leaf topology to external networks

D.

To two L2 edge switches, which are dedicated to connecting the spine and leaf topology to external networks

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Questions 18

What delivery documents are included in the post-installation handover?

Options:

A.

Devices Datasheets

B.

Devices Quick Specs

C.

Cost of the project

D.

Archived configurations

E.

Inventory

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Questions 19

You need to design a network that supports transmitting RDMA traffic over multiple IP hops. Which protocols must the switches support? (Select all that apply.)

Options:

A.

ETS

B.

IP ECN

C.

PFC

D.

QCN

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Questions 20

What is a rule of thumb for oversubscription ratio on the ToR switches for a two-tier network design?

Options:

A.

12:1-14:1

B.

1:1-2:1

C.

6:1-10:1

D.

3:1-5:1

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Questions 21

HPE Aruba Networking switch selector is accessible from

Options:

A.

Intangi IRIS design tool

B.

Aruba Support Portal

C.

HPE PSNow tools

D.

From NetEdit management tool

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Questions 22

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

Options:

A.

Mission-Critical Applications

B.

Team-Critical Applications

C.

Business-Critical Applications

D.

Life-Critical Applications

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Questions 23

You are adding EVPN VXLAN to an L3 spine and leaf topology that uses OSPF for the underlay. You plan to use a single BGP AS. Which design for EVPN neighbors is correct?

Options:

A.

Leaf switches should establish iBGP sessions with other leaf switches using their VXLAN loopback IPs. Route reflectors are not required

B.

The border leaf switches should act as route reflectors and specify the leaf switches’ VXLAN loopback IPs as route reflector clients

C.

At least one spine switch should act as route reflector and specify the leaf switches’ unique loopback IPs as route reflector clients

D.

Leaf switches should establish iBGP sessions with spine switches on their actual P2P link IP addresses. Route reflectors are not required

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Questions 24

What is the maximum distance supported by Active Optical Cables (AOC)?

Options:

A.

7 meters

B.

50 meters

C.

15 meters

D.

30 meters

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Questions 25

You are designing an overlay solution for two Data Centers based on the Aruba CX platform. Each Data Center has two rooms and each room is its own fabric. What is the underlay routing protocol run within each room?

Options:

A.

iBGP

B.

eBGP

C.

OSPF

D.

IS-IS

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Questions 26

Which of the following are deemed as Post-installation handover tasks

Options:

A.

Project budget details

B.

Enable monitoring of new systems

C.

RFP

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Questions 27

ERPS (Ethernet Ring Protection Switching):

Options:

A.

Is not supported on CX 6400 switch series

B.

Prevents broadcast storms and implements fast-traffic switchover on a network where there are loops

C.

Does not prevent broadcast storms but implements fast-traffic switchover on a network where there are loops

D.

Is not supported on CX 8400 switch series

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Questions 28

In VSX, the ISL (InterSwitch Link):

Options:

A.

Can be indirectly connected

B.

Must be directly connected

C.

Can be used for keep alive communications

D.

They must be routed links

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Questions 29

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?

Options:

A.

Up to 16 total racks using different subscription rates

B.

Up to 4 total racks using the same subscription rates

C.

Up to 4 total racks using different subscription rates

D.

Up to 8 total racks using the same subscription rates

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Exam Code: HPE7-A04
Exam Name: Aruba Certified Data Center Architect Exam
Last Update: Apr 30, 2026
Questions: 98

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