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  • Exam Name: Arista Certified Engineering Associate Exam
  • Last Update: Sep 12, 2025
  • Questions and Answers: 127
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ACE-A1.2 Practice Exam Questions with Answers Arista Certified Engineering Associate Exam Certification

Question # 6

What is the name of the feature that allows you to retrieve the output of CLI commands in JSON format?

A.

XMPP

B.

DANZ

C.

LANZ

D.

eAPI

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Question # 7

When an Arista switch boots with no startup-config and ZTP enabled, before ZTP receives an IP address, in what state are the front-panel interfaces?

A.

All interfaces are shut down.

B.

All interfaces are disabled.

C.

All interfaces are routed ports (no switchport).

D.

All interfaces are switch ports (switchport).

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Question # 8

Which of the following Arista switch series’ support reversible airflow?

A.

7150

B.

7250QX

C.

7010

D.

7300

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Question # 9

What is the benefit of the watch diff CLI command?

A.

It allows you to watch differential equation algorithms when they’re being evaluated in a hadoop cluster.

B.

It allows you to view the skew rate between two clock sources when using NTP.

C.

It allows you to view the skew rate between two clock sources when using IEEE 1588 Precision Time Protocol.

D.

It allows you to automatically reissue any CLI command at set intervals while highlighting the differences from the last iteration of that command.

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Question # 10

In EOS, which of the following statements is the shortest acceptable abbreviation for entering global configuration mode?

A.

conf

B.

con

C.

config

D.

conf t

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Question # 11

On an Arista switch, what two commands can you use to write your changes from the running-configuration to the startup-configuration?

A.

write

B.

copy running-config startup-config

C.

save

D.

save memory

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Question # 12

In what file might “DISABLE=True” be found on a switch with no other configuration?

A.

mlag-config

B.

zerotouch-config

C.

api-config

D.

eapi-config

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Question # 13

What is the EOS feature that allows switches with Multi-Switch CLI enabled to send non-interactive commands to multiple switches at once?

A.

groups

B.

switch-groups

C.

chat-rooms

D.

chat-groups

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Question # 14

Which of the following interface types are never found on an Arista switch?

A.

management

B.

console

C.

Ethernet

D.

auxiliary

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Question # 15

What does %1 signify when writing an alias statement in CLI?

A.

It means that Arista is number one.

B.

%1 is a placeholder that will be replaced with token 1 when the alias is called.

C.

It doesn’t mean anything.

D.

%1 means that the CPU is limited to 1% when the alias is called.

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Question # 16

On EOS 4.15 and above, the ability to show JSON output for EOS CLI commands is available. Which of the following will successfully produce JSON output for the show version command?

A.

show version | show json

B.

show version | json

C.

show json | show version

D.

show version json

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Question # 17

What would be the result of issuing a reload command on one of the two switches peered together in an MLAG domain where both switches are running EOS version 4.14.1F?

A.

Dual-homed hosts lose 50% of network capacity through the MLAG domain while the switch reboots

B.

The peer switch also reboots to ensure network stability.

C.

The peer switch sends out gratuitous BPDUs to let the network know that it has assumed the root-bridge role.

D.

Nothing bad ever happens when MLAG is enabled!

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Question # 18

Where does SysDB store its contents when the switch reboots?

A.

flash:

B.

/mnt/flash

C.

/home/admin

D.

none of the above

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Question # 19

What is the fundamental purpose of SysDB?

A.

SysDB is the repository for state information for EOS agents.

B.

SysDB is the database in which username/password keys are stored.

C.

SysDB is the database of systems discovered by the switch

D.

SysDB is a marketing named for a feature that doesn’t actually exist.

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Question # 20

When using Monitor Sessions with a destination of the CPU, it is impossible to forward an entire 10Gbps worth of traffic due to internal COPP policies. How might you successfully use this feature given these constraints?

A.

You just have to live with it.

B.

Use packet truncation.

C.

Use ACL filters applied to the mirror session.

D.

Buy a switch with a larger TCAM.

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Question # 21

Which of the following commands will create a static flood-list entry while in VXLAN interface configuration mode?

A.

vxlan flood vlan 103 vtep 10.1.14.1

B.

vxlan vlan 103 vtep flood 10.1.14.1

C.

vxlan vlan 103 flood vtep 10.1.14.1

D.

There is no such command.

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Question # 22

If you create a schedule job named “Colleen-Job”, where will the output of the scheduled commands be placed?

A.

/mnt/flash/schedule/colleen-job/

B.

/mnt/flash/Colleen-Job/

C.

flash:Colleen-Job

D.

/mnt/flash/schedule/Colleen-Job/

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Question # 23

Which of the following best describes Arista’s MLAG feature?

A.

utilizes bandwidth more efficiently with fewer uplinks blocked by Spanning Tree

B.

combines up to seven switches in a ring topology

C.

negotiates speed and duplex settings on 10Gb interfaces

D.

saves all dropped packets to be used at a later time

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Question # 24

What is Adaptive Segmentation?

A.

The ability for VMTracer to dynamically create VLANs based on the VLANs in use on VMs.

B.

The ability to support multiple vCenter instances.

C.

The ability for an Arista switch to run VMs on the switch itself.

D.

The ability to split the switch into multiple virtual switches.

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Question # 25

Which of the following are valid ZTP modes? (Choose two.)

A.

Disable

B.

Enable

C.

Off

D.

On

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Question # 26

Which of the following statements are true?

A.

VMTracer is a licensed feature.

B.

VMTracer is free.

C.

VMTracer is only supported on certain Arista switches.

D.

VMTracer is not supported in vEOS.

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Question # 27

How might you guarantee the order of operation for multiple Event-Manager event-handlers should they trigger at the same time?

A.

With the event-handler priority parameter.

B.

There is no guarantee of action ordering in this scenario.

C.

By using the delay option.

D.

By using another feature.

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Question # 28

What Arista feature helps with the diagnosis of microbursting events?

A.

LANZ

B.

DANZ

C.

PANZ

D.

FANZ

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Question # 29

Given the following output, which of the following have you likely configured?

ACE-A1.2 question answer

A.

Advanced Mirroring with Packet Truncation

B.

Advanced Mirroring with ACLs

C.

Agile Ports

D.

Buffer Tuning

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Question # 30

What is the VXLAN equivalent to a VLAN ID?

A.

VTEP

B.

VNI

C.

VTP

D.

VXLAN

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Question # 31

What is required in order for Multi-Switch CLI to be implemented?

A.

One or more Arista products with management xmpp enabled.

B.

an XMPP-based server such as EJabberd

C.

an instant messaging client such as Admium or Trillian

D.

an SSD drive to the extensive logging produced by this feature.

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Question # 32

If an agent were to suffer a catastrophic failure and die, what process would restart it?

A.

SysDB

B.

ProcMgr

C.

Stp

D.

SysMgr

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Question # 33

Which of the following commands is being deprecated and will not be supported in the near future?

A.

copy running-config startup-config

B.

copy run start

C.

write memory

D.

none of the above

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Question # 34

Which of the following commands will show the mac-address to VTEP table on an Arista switch?

A.

show vxlan address-table

B.

show vxlan mac-address-table

C.

show mac-address-table

D.

show vxlan summary

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Question # 35

VMTracer requires which of the following?

A.

Root-level access to vCenter.

B.

Read-level access to vCenter.

C.

Read/write-level access to vCenter.

D.

VMTracer does not require a username on vCenter.

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Question # 36

Which of the following EOS features might alleviate the need for screen-scraping in your scripts?

A.

The linux screen command

B.

LANZ

C.

eAPI

D.

Python

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Question # 37

How might you filter the output from the show interfaces counters errors command to be more useful by removing lines containing all zeroes?

A.

show interfaces counters errors | grep nozeroes

B.

show interfaces counters errors | grep pipe nozeroes

C.

show interfaces counters errors | email tac@arista.com

D.

show interfaces counters errors | nz

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Question # 38

What happens to all of the Ethernet interfaces on an Arista switch when you enable Tap Aggregation mode exclusive?

A.

They all become up/up regardless of physical link detection.

B.

All the link lights turn green.

C.

They all become err-disabled.

D.

All the link lights start blinking at five blinks per second.

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