Arista Certified Engineering Associate v1.0
Question 1
Which of the following statements is false?
- A. You can run bash commands from CLI with the bash command.
- B. You can run CLI commands from bash with the Cli command.
- C. You can run CLI commands from bash with the FastCli command.
- D. You can run CLI commands from CLI with the Cli command.
Answer : D
Question 2
Complete this sentence: In an Arista MLAG configuration, interfaces on both devices participate in a ___.
- A. group conversation about the fastest Layer 3 routing protocol convergence scenarios
- B. negotiation over BGP router ID priorities
- C. distributed port channel, enabling all active paths to carry data traffic while maintaining the integrity of the STP topology
- D. disabled Layer 1 fiber optic speed negotiation
Answer : C
Question 3
When using LANZ, which command would show you the number of segments configured on an Ethernet interface?
- A. show lanz status
- B. show lanz summary
- C. show queue-monitor length status
- D. show queue-monitor length summary
Answer : C
Reference:
https://eos.arista.com/latency-analyzer-lanz-architectures-and-configuration/
Question 4
How is LANZ enabled on switches that support it?
- A. With the management lanz command, followed by the no shutdown command.
- B. With the queue-monitor enable command.
- C. With the lanz enable command.
- D. With the queue-monitor length command.
Answer : D
Reference:
https://www.arista.com/assets/data/pdf/user-manual/um-eos-4172f/Chapters/um-eos-4172f_Latency%20Analyzer%20(LANZ).pdf
(page 3)
Question 5
Which command will disable Adaptive Segmentation in VMTracer?
- A. Student-01(config-vmtracer-session)#autovlan disable
- B. Student-01(config-vmtracer-session)#no autovlan
- C. Student-01(config-vmtracer-session)#no autovlan enable
- D. Adaptive Segmentation cannot be disabled in VMTracer
Answer : A
Reference:
https://www.arista.com/assets/data/pdf/user-manual/um-eos-4172f/Chapters/um-eos-4172f_VM%20Tracer.pdf
(page 4)
Question 6
Which command will successfully configure Ethernet5 to be 40Gbps on an Arista 7150-52 switch?
- A. An Arista 7150-52 dos not support 40Gbps
- B. Since Ethernet 5 is a 10Gbps port, 40Gbps is not possible.
- C. Arista(config-if-Et5)#speed forced 40gfull
- D. Arista(config-if-Et5)#speed 40gfull
Answer : C
Reference:
https://www.arista.com/zh/um-eos-4172f/eos-section-9-5-ethernet-configuration-procedures
Question 7
Where does SysDB store its contents when the switch reboots?
- A. flash:
- B. /mnt/flash
- C. /home/admin
- D. none of the above
Answer : A
Question 8
Given the following output, on what interface would you expect to see mirrored traffic when using tcpdump?
- A. Ethernet1
- B. Et1
- C. cpu0
- D. mirror0
Answer : B
Reference:
https://eos.arista.com/introduction-to-managing-eos-devices-troubleshooting/#362_Running_TCPDump_for_data-plane_traffic_natively_in_EOS
Question 9
What is the name of the link that connects two Arista switches together to form an MLAG domain?
- A. The connector link
- B. The east-west bypass link
- C. The MLAG ISL (Inter-switch link)
- D. The MLAG peer-link
Answer : D
Reference:
https://eos.arista.com/mlag-basic-configuration/
Question 10
What does the asterisk in the following output signify?
- A. The VLAN was created by VTP.
- B. The VLAN was created by default.
- C. The VLAN was created dynamically.
- D. The VLAN is scheduled for removal by VMTracer.
Answer : C
Question 11
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
Answer : B
Question 12
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.
Answer : A
Reference:
https://github.com/aristanetworks/EosSdk/wiki/Understanding-EOS-and-Sysdb
Question 13
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.
Answer : A
Reference:
https://www.arista.com/assets/data/pdf/TechBulletins/VMTracerOverview.pdf
(page 4)
Question 14
What is the name of the feature that allows the destination of a monitor session to be the CPU?
- A. Mirroring
- B. Advanced Mirroring
- C. CPU Mirroring
- D. Super-Mirror
Answer : C
Reference:
https://www.arista.com/docs/Manuals/QuickStart-Managing7150Series.pdf
(page 26)
Question 15
How many Virtual Network Identifiers are supported by the VXLAN specification?
- A. 4096
- B. 4094
- C. 16,777,216
- D. 16,000,000
Answer : C