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ACE-A1.2 Arista Certified Engineering Associate Exam Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Arista ACE-A1.2 Arista Certified Engineering Associate Exam certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 127 questions

If you have an Arista switch with SFPs, which command will show the temperature of those SFPs?

A.

show interfaces transceiver

B.

show interfaces

C.

show interfaces status

D.

show sfp monitor

Arista switches automatically issue a show tech support once every hour, saving the results to files on flash. How many of these files are retained by default?

A.

10

B.

50

C.

100

D.

150

On an Arista switch, what is the default username and password?

A.

Username Admin, Password Arista

B.

Username Arista, Password Admin

C.

Username admin with no password

D.

Username Arista with no password

Which Arista switch series shares fans with the Arista 7300 chassis switches?

A.

7500E

B.

7150

C.

7010

D.

7250QX

Which of the following are not valid boot-config file entries?

A.

NETGW=192.168.1.1

B.

IMAGE-flash:EOS-4.12.1.swi

C.

SWI=flash:EOS-4.12.1.swi

D.

SWIX=flash:EOS-4.12.1.swi

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.

What does LANZ do?

A.

LANZ reports on microbursting events at extremely small intervals of time.

B.

LANZ alters the flow of frames based on an interfaces high and low queue-thresholds.

C.

LANZ is a form of QoS that allows for microsecond-levels of precision on interfaces that support it.

D.

LANZ is the means whereby late packets can be analyzed.

On EOS 4.13.1F, which of the following statements are true in regards to Arista’s Tap Aggregation feature? (Select two)

A.

Tap ports are send only.

B.

Tap ports are receive only.

C.

Tool ports are send only.

D.

Tool ports are receive only.

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!

True or False; you should disable Spanning-Tree on the Arista MLAG peer link VLAN?

A.

FALSE

B.

TRUE

On an Arista switch, which port is used to connect a laptop to the switch for initial configuration or password recovery?

A.

Ethernet 1

B.

Console

C.

Management 1

D.

Ethernet 1/1

After configuration and enabling XMPP, what command can be used to verify its status?

A.

show status xmpp

B.

show xmpp status

C.

show xmpp server

D.

show xmpp server status

ZTP can retrieve either an EOS configuration file or a script at boot. How does the switch determine of the file being retrieved in a script or a configuration file?

A.

If the first line of the file ends with a shebang (#!), the file is a configuration file.

B.

If the first line of the file starts with a shebang (#!), the file is a script.

C.

If the last line of the file ends with a shebang (#!), the file is a script.

D.

If the last line of the file starts with a shebang (#!), the file is a configuration file.

How many Virtual Network Identifiers are supported by the VXLAN specification?

A.

4096

B.

4094

C.

16,777,216

D.

16,000,000

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.

What can you assume about Ethernet1 in this output from a 7150-24 that have been configured with the tap aggregation mode exclusive command?

A.

Ethernet1 is broken.

B.

Ethernet1 has a QSPF interface.

C.

Ethernet1 is an Agile Port.

D.

Ethernet1 will not work with Tap Agg.

The VXLAN spec allows for two implementation types. One uses multicast. What is the other one called?

A.

Non-multicast replication

B.

BUM-Replication

C.

Fore-end Replication

D.

Head-end Replication

Which of the following statuses will be displayed when VMTracer has connected to vSphere?

A.

Connected

B.

Attached

C.

Active

D.

None of the above

Which of the following statements is true with an Arista switch that has no configuration, but has booted with ZTP disabled?

A.

You may login directly as root, but only when using SSH.

B.

You may login as root, but only if you login as admin first.

C.

You can run root-level commands without a password after logging in as root.

D.

You cannot issue root-level commands until you add a user with a password.

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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Total 127 questions
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