Arista Arista Certifications ACE-A1.2 Questions & Answers

• Question 21:

  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.

  Correct Answer: C

  Reference: https://eos.arista.com/syslog-triggered-event-scripts/

• Question 22:

  What are the three types of LANZ updates?

  A. Start, Update, and Stop

  B. Start, Update, and End

  C. Begin, Update, and End

  D. Begin, Update, and Stop

  Correct Answer: B

  LANZ operates by setting threshold values on the interface and global buffer pools and then generates records for the start and end events causing those threshold values to be exceeded. Update records are also generated when buffer use exceeds those thresholds for a prolonged period of time.

  Reference: https://eos.arista.com/latency-analyzer-lanz-architectures-and-configuration/

• Question 23:

  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.

  Correct Answer: D

• Question 24:

  What does Arista use as a filename extension when creating EOS extensions?

  A. .swix

  B. .ext

  C. .extension

  D. .swx

  Correct Answer: A

  Reference: https://eos.arista.com/packaging-and-installing-eos-extensions/

• Question 25:

  What is the default location of EOS log files in Linux?

  A. EOS doesn't run Linux

  B. /var/log/

  C. flash:

  D. /mnt/flash/

  Correct Answer: B

• Question 26:

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

  A. 7150

  B. 7250QX

  C. 7010

  D. 7300

  Correct Answer: D

  Reference: https://www.arista.com/en/products/7300-series

• Question 27:

  True or False: When configured as an MLAG domain, the Arista switches use the same MLAG System ID.

  A. TRUE

  B. FALSE

  Correct Answer: A

• Question 28:

  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.

  Correct Answer: C

  Reference: https://www.arista.com/en/um-eos/eos-section-18-3-tap-aggregation-configuration

• Question 29:

  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

  Correct Answer: B

• Question 30:

  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/

  Correct Answer: A

  Reference: https://books.google.com.pk/books?id=SFMuNdeVXswCandpg=PA279andlpg=PA279anddq=arista +eos+output+of+the+scheduled+commands+be +placedandsource=blandots=Wzz700M2hxandsig=fPEZrnIjLufCw7LSfKjaEs5M3kIandhl=enandsa=Xandredir_esc=y#v= onepageandq=arista%20eos%20output%20of%20the%20scheduled%20commands%20be% 20placedandf=false