Career upgrade: Learn practical AI skills for better jobs and higher pay.
Level up
PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free Arista Foundations Practice Questions

Pass your Arista ACE Network Foundations (AN-FN-OP01) — Associate tier exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
Not publicly reported by Arista Pass Rate
100+ Questions
100% Free
1 / 100
Question 1
Score: 0/0

Which DSCP class selector value corresponds to 'best-effort' (default) traffic?

A
B
C
D
to track
Same family resources

Explore More Arista Certifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Arista ACE Specialist - Automation (AN-AU-FP01 Foundations)

Practice Questions

Arista ACE Specialist - Campus (AN-CA-OP01 / AN-CA-EN01)

Practice Questions

Arista ACE Specialist - Data Center (AN-DC-OP01 / AN-DC-EN01)

Practice Questions

Arista ACE Specialist - WAN Routing (AN-RT-MP01 MPLS Core)

Practice Questions

Arista Certified Engineer — Associate (ACE-A)

Practice Questions

Arista Certified Engineer — Expert (ACE-E)

Practice Questions
2026 Statistics

Key Facts: Arista Foundations Exam

2 hr

Exam Duration

Arista Academy datasheet

$295

Exam Fee

Arista certification

Honorlock

Proctoring

Online proctored

Associate

ACE Tier

Arista Academy datasheet

Open-book

Format

Practical lab

Free

Training Track

Arista Academy

The Arista ACE Network Foundations exam (AN-FN-OP01) is a 2-hour practical, open-book lab delivered via Honorlock online proctoring. It costs $295 and earns the Associate-tier Network Foundations badge — note that despite the 'arista-ace-s-foundations' identifier used on this site, this badge is at the Associate tier, not Specialist. Topic areas include OSI/TCP-IP fundamentals, Arista EOS CLI, VLANs and STP, LACP and MLAG, OSPF/BGP basics, ACLs and AAA, IPv6, QoS, and a CloudVision introduction. Prerequisite training is the free Arista Academy Network Foundations track (Self-Paced 'Academy Digital' or instructor-led 'Academy Live'). Arista does not publicly disclose the passing score.

Sample Arista Foundations Practice Questions

Try these sample questions to test your Arista Foundations exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1How many layers does the OSI reference model define, and what is the order from layer 1 to layer 7?
A.5 layers: Physical, Data Link, Network, Transport, Application
B.7 layers: Physical, Data Link, Network, Transport, Session, Presentation, Application
C.4 layers: Link, Internet, Transport, Application
D.7 layers: Application, Session, Network, Data Link, Transport, Presentation, Physical
Explanation: The OSI model has 7 layers, ordered bottom-up: Physical (1), Data Link (2), Network (3), Transport (4), Session (5), Presentation (6), Application (7). A common mnemonic is 'Please Do Not Throw Sausage Pizza Away'. The TCP/IP model has only 4 layers (Link, Internet, Transport, Application), but the question asks about OSI.
2Which OSI layer is responsible for logical addressing and routing of packets between networks?
A.Layer 2 (Data Link)
B.Layer 3 (Network)
C.Layer 4 (Transport)
D.Layer 7 (Application)
Explanation: Layer 3 (Network) handles logical addressing (IP addresses) and routing of packets between different networks. Routers operate at Layer 3 and use the destination IP address to decide where to forward the packet.
3Which protocol data unit (PDU) is associated with Layer 2 (Data Link) of the OSI model?
A.Bit
B.Frame
C.Packet
D.Segment
Explanation: At Layer 2, data is encapsulated into a frame. Layer 1 deals with bits, Layer 3 deals with packets, and Layer 4 (TCP) deals with segments (or datagrams for UDP).
4How many layers does the TCP/IP model define?
A.3
B.4
C.5
D.7
Explanation: The classic TCP/IP model has 4 layers: Link (Network Access), Internet, Transport, and Application. The OSI model has 7 layers, but TCP/IP collapses several into a single Application layer.
5How many bits are in a MAC address, and how is it commonly written?
A.32 bits, written as four dotted decimal octets
B.48 bits, written as 12 hexadecimal digits (six pairs separated by colons or hyphens)
C.64 bits, written as eight hexadecimal groups
D.128 bits, written as eight groups of hexadecimal digits
Explanation: An Ethernet MAC address is 48 bits (6 bytes) long, typically written as 12 hexadecimal digits in six pairs (for example 00:1C:73:AB:CD:EF). The first 24 bits (3 bytes) are the OUI assigned to the vendor, and the last 24 bits identify the NIC.
6What is the standard maximum transmission unit (MTU) for an Ethernet frame payload?
A.576 bytes
B.1500 bytes
C.9000 bytes
D.65535 bytes
Explanation: The classic Ethernet (IEEE 802.3) payload MTU is 1500 bytes. Jumbo frames typically allow up to 9000 bytes but are non-standard. 576 bytes is the historical minimum IPv4 MTU, and 65535 is the maximum size of the IP total-length field.
7Which IPv4 address ranges are reserved as private (RFC 1918)?
A.10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16
B.169.254.0.0/16 only
C.127.0.0.0/8 and 224.0.0.0/4
D.100.64.0.0/10 and 198.18.0.0/15
Explanation: RFC 1918 reserves three private IPv4 ranges: 10.0.0.0/8, 172.16.0.0/12 (172.16.0.0 to 172.31.255.255), and 192.168.0.0/16. Hosts using these addresses are not routable on the public Internet without NAT.
8A host is configured with IP 192.168.10.45 and subnet mask 255.255.255.0. What is the network address?
A.192.168.10.0
B.192.168.10.45
C.192.168.10.255
D.192.168.0.0
Explanation: With a /24 mask (255.255.255.0), the network portion is the first three octets and the host portion is the last octet. Setting the host bits to zero gives the network address 192.168.10.0. The broadcast address would be 192.168.10.255.
9How many usable host addresses are available in a /24 IPv4 subnet?
A.254
B.255
C.256
D.510
Explanation: A /24 has 8 host bits, giving 2^8 = 256 total addresses. Two addresses are reserved (network and broadcast), leaving 256 - 2 = 254 usable host addresses.
10What is the correct order of messages exchanged in DHCP DORA?
A.Discover, Offer, Request, Acknowledge
B.Request, Offer, Discover, Acknowledge
C.Discover, Request, Offer, Acknowledge
D.Offer, Discover, Acknowledge, Request
Explanation: The DHCP DORA process is: Discover (client broadcasts looking for a server), Offer (server offers a lease), Request (client requests the offered lease), Acknowledge (server confirms). The Discover and Request messages use UDP destination port 67; the Offer and Ack reply to UDP port 68 on the client.

About the Arista Foundations Exam

The Arista ACE Network Foundations (AN-FN-OP01) exam is the optional 2-hour practical, open-book lab exam tied to the free Arista Academy Network Foundations training track. It validates entry-level skills to configure, operate, and troubleshoot basic Arista network deployments — Layer 2 switching, Layer 3 routing, foundational network security, IPv6, QoS, and an introduction to network automation with CloudVision. Although our site's exam ID contains the segment '-s-', this badge sits at the Associate tier of the ACE program (the Foundations badge is part of the Associate tier shown on the Arista Academy datasheet).

Assessment

2-hour practical, open-book lab exam covering Network Engineering fundamentals, Layer 2 switching, Layer 3 routing, Network Security basics, IPv6, QoS, and CloudVision introduction. Despite the 'arista-ace-s-foundations' identifier on this site, the Network Foundations badge is the Associate-tier entry point of Arista's ACE program (not the Specialist tier).

Time Limit

2 hours

Passing Score

Not publicly disclosed by Arista

Exam Fee

$295 (Arista / Honorlock online proctored)

Arista Foundations Exam Content Outline

~17%

Network Engineering Fundamentals

OSI 7-layer and TCP/IP 4-layer models, encapsulation/PDUs, copper/fiber cabling, PoE 802.3af/at/bt (15.4W/30W/60-90W), transceivers (SFP/SFP+/SFP28/QSFP+/QSFP28/QSFP-DD), Ethernet/MAC, MTU 1500/9000, IPv4 RFC 1918, subnetting and CIDR, DHCP DORA, ICMP, DNS records, ARP, NTP, TCP three-way handshake, well-known ports, UDP

~17%

Layer 2 Switching Fundamentals

VLANs and 802.1Q trunking (4-byte tag, VID 1-4094, native VLAN, voice VLAN), inter-VLAN routing via SVI or router-on-a-stick, STP/RSTP/MSTP (root election, port states, BPDU Guard, PortFast), LACP modes (active/passive/on) and hash algorithms, MLAG basics, EOS CLI for switching

~17%

Layer 3 Routing Fundamentals

Routed interfaces with 'no switchport', static and default routes, administrative distance, OSPF basics (areas, area 0 backbone, LSA types 1-5, default hello/dead 10/40), BGP basics (TCP/179, eBGP vs iBGP, AS_PATH, neighbor states Idle/Connect/Active/OpenSent/OpenConfirm/Established), ECMP

~17%

Network Security Basics

Standard (1-99) and extended (100-199) ACLs, named ACLs, implicit deny any, ip access-group in/out, hit counters and ip access-list resequence, ACL troubleshooting workflow, AAA with TACACS+ and RADIUS, DHCP Snooping, IP Source Guard, Dynamic ARP Inspection, management-plane hardening

~17%

IPv6 and QoS

IPv6 128-bit addressing and ::-compression, link-local FE80::/10, ULA FC00::/7, multicast FF00::/8 (FF02::1, FF02::2), NDP NS/NA/RS/RA, SLAAC vs DHCPv6, EOS IPv6 commands, QoS classification and marking, DSCP (CS0-CS7, AF, EF=46), policing vs shaping, congestion management (LLQ/CBWFQ)

~15%

CloudVision Introduction

Why automate, CloudVision Portal (CVP) on-prem and CloudVision-as-a-Service (CVaaS), Inventory, Configlets, Studios concept, ZTP integration with CloudVision, TerminAttr telemetry agent, image management and change control

How to Pass the Arista Foundations Exam

What You Need to Know

  • Passing score: Not publicly disclosed by Arista
  • Assessment: 2-hour practical, open-book lab exam covering Network Engineering fundamentals, Layer 2 switching, Layer 3 routing, Network Security basics, IPv6, QoS, and CloudVision introduction. Despite the 'arista-ace-s-foundations' identifier on this site, the Network Foundations badge is the Associate-tier entry point of Arista's ACE program (not the Specialist tier).
  • Time limit: 2 hours
  • Exam fee: $295

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Arista Foundations Study Tips from Top Performers

1Treat this as Associate-tier despite the 'arista-ace-s-foundations' Exam ID — study at the depth of the Arista Academy Network Foundations datasheet, not the Specialist tracks
2Spend the most time inside vEOS or cEOS-lab — the exam is a 2-hour practical, so muscle memory of EOS commands beats rote memorization
3Memorize the EOS configuration workflow: configure session -> show session-config diffs -> commit/abort, plus 'configure replace' and named checkpoints
4Drill the Layer 2 quartet: VLAN/802.1Q trunk, STP/RSTP/MSTP root and port states, LACP modes (active/passive/on), and MLAG peer-link/peer-address
5Practice ACL configuration end-to-end: standard vs extended, named ACL, ip access-group in/out, ip access-list resequence, hit counters, and the implicit deny
6Refresh DSCP basics (CS0-CS7, AF, EF=46) and the policing vs shaping distinction — these show up in the QoS lab tasks

Frequently Asked Questions

What is the Arista ACE Network Foundations (AN-FN-OP01) exam?

Network Foundations is the optional certification exam tied to Arista Academy's free Network Foundations training track. It is a 2-hour, open-book, practical lab delivered via Honorlock online proctoring. Successful candidates earn the Associate-tier Network Foundations digital badge, validating skills to configure, operate, and troubleshoot basic Arista deployments across Layer 2, Layer 3, security, IPv6, QoS, and CloudVision.

Why does this site call the exam 'arista-ace-s-foundations' if it is Associate-tier?

Our internal Exam ID 'arista-ace-s-foundations' is a stable identifier kept for URL and data-model continuity. The badge itself is at the Associate tier of Arista's ACE program — not the Specialist tier — as shown on the Arista Academy Network Foundations datasheet. Treat all study and questions on this page as Associate / Foundations level.

How much does the Arista ACE Network Foundations exam cost?

The exam fee is $295 USD. The associated Arista Academy Network Foundations training track is free (Self-Paced 'Academy Digital'); Academy Live (private instructor-led) is offered separately. There are no required commercial books, so total study cost typically equals the $295 exam fee.

What topics are covered on the Arista Network Foundations exam?

Topics follow the Arista Academy Network Foundations datasheet: Network Engineering Fundamentals (OSI/TCP-IP, cabling/PoE, IPv4/subnetting, DHCP/DNS/ARP/ICMP/NTP, TCP/UDP), Arista EOS Fundamentals (CLI, configuration sessions, management connectivity), Layer 2 Switching (VLANs, STP, LACP, MLAG), Layer 3 Routing (static, OSPF, BGP basics), Network Security (ACLs, AAA, DHCP Snooping, IP Source Guard, DAI), IPv6 and QoS, and a CloudVision introduction.

How is the exam delivered, and is it proctored?

It is a 2-hour practical, open-book exam delivered via Honorlock online proctoring. Candidates need a quiet space, webcam, microphone, government-issued photo ID, and stable internet. Because it is open-book, the focus is on demonstrating practical configuration and troubleshooting on Arista EOS, not memorization.

What is the passing score?

Arista does not publicly disclose the passing score for the Network Foundations exam. Practice consistently with hands-on labs (vEOS or cEOS-lab), review the Network Foundations track end-to-end, and aim for confident, error-free configuration of the topics listed in the datasheet.

What should I do after Network Foundations?

Continue into Arista's Associate engineering exam, Specialist tracks (Data Center, Campus, CloudVision, Routing), or pair Arista skills with multi-vendor credentials such as Cisco CCNA. The Foundations badge is designed as the entry-point — it builds the EOS muscle memory you will use across every higher-tier Arista certification.