Free Practice Questions for Arista ACE-A1.2 Exam

Question 1

Which command below is valid to use as a way to verify the status of the MLAG peer-link?

Ashow mlag

Bshow mlag interface

Cshow mlag peer-link

Dshow mlag detail

Correct Answer: A. show mlag

Question 2

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

Awrite

Bcopy running-config startup-config

Csave

Dsave memory

Correct Answer: A. write; B. copy running-config startup-config

Question 3

What is the fundamental purpose of SysDB?

ASysDB is the repository for state information for EOS agents.

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

CSysDB is the database of systems discovered by the switch

DSysDB is a marketing named for a feature that doesn't actually exist.

Correct Answer: A. SysDB is the repository for state information for EOS agents.

Question 4

True or False: XMPP Management is enabled by default.

ATRUE

BFALSE

Correct Answer: B. FALSE

Question 5

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

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

BAll the link lights turn green.

CThey all become err-disabled.

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

Correct Answer: C. They all become err-disabled.

Question 6

Which of the following commands will show all of the hardware on an Arista switch?

Ashow inventory

Bshow version

Cshow version detail

Dshow hardware

Correct Answer: C. show version detail

Question 7

When configuring MLAG, Arista recommends that the trunk group command be used on the VLAN used for MLAG peer communication. What is the purpose of the trunk group command?

AIt groups all the trunks together so that they can traverse the peer-link properly.

BIt groups the MLAG interfaces together so that they can be reported on both peers.

CIt prevents the configured VLAN from leaking out onto other trunks.

DIt ensures that the configured VLAN will be included on all trunks.

Correct Answer: A. It groups all the trunks together so that they can traverse the peer-link properly.

Question 8

Which Arista switch series supports more than eight line cards?

A7050

B7250QX

C7500

D7300

Correct Answer: D. 7300

Question 9

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

AFALSE

BTRUE

Correct Answer: B. TRUE

Question 10

What does LANZ do?

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

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

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

DLANZ is the means whereby late packets can be analyzed.
Data center switches sometimes suffer from a problem known as microbursting, wherein the buffers become overrun and drop packets. The problem is that these microbursts happen often at microsecond intervals, so the switches never report them. These prob lems can be horrific to diagnose, and even worse to try and explain to executives. That is, unless you have an Arista switch with latency analyzer (LANZ)

Correct Answer: A. LANZ reports on microbursting events at extremely small intervals of time.