100+ Free Dell Networking Associate (D-NWG-FN-23) Practice Questions

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How many layers are defined in the OSI reference model?

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Key Facts: Dell Networking Associate (D-NWG-FN-23) Exam

Exam Questions

Multiple-choice format

63%

Passing Score

~38 correct answers

90 min

Time Limit

Pearson VUE delivery

~$230

Exam Fee

Per attempt

3 years

Credential Validity

Then recertification required

Pearson VUE

Test Delivery

In-person or online proctored

Dell Networking Associate (D-NWG-FN-23) is an entry-level Dell Technologies credential with a 60-question exam, 90-minute time limit, and 63% passing score. The exam covers networking fundamentals, Layer 2 switching, Layer 3 routing, the Dell PowerSwitch portfolio, OS10 Enterprise Edition, EVPN-VXLAN fabric, VLT high availability, QoS, DCB, security, management, and automation. Testing is delivered through Pearson VUE at approximately $230 per attempt with three-year credential validity.

Sample Dell Networking Associate (D-NWG-FN-23) Practice Questions

Try these sample questions to test your Dell Networking Associate (D-NWG-FN-23) 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 are defined in the OSI reference model?

A.4

B.5

C.7

D.9

Explanation: The OSI model defines seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The TCP/IP model in contrast collapses these into four layers (Link, Internet, Transport, Application). Knowing the OSI layer numbering is fundamental for troubleshooting on any platform including Dell OS10.

2At which OSI layer does an Ethernet switch primarily forward frames using MAC addresses?

A.Layer 1 — Physical

B.Layer 2 — Data Link

C.Layer 3 — Network

D.Layer 4 — Transport

Explanation: Traditional Ethernet switches forward frames based on destination MAC addresses, which is a Layer 2 (Data Link) function. Layer 3 routing uses IP addresses. Multilayer Dell PowerSwitch devices can do both, but pure switching is a Layer 2 operation.

3How many bits are in an IPv4 address?

A.16

B.32

C.64

D.128

Explanation: IPv4 addresses are 32 bits long, written as four octets separated by dots. IPv6 uses 128-bit addresses written in eight 16-bit hexadecimal groups. Knowing the length is important for subnetting and CIDR calculations.

4Which protocol resolves an IPv4 address to a MAC address on a local LAN?

A.DNS

B.ARP

C.DHCP

D.ICMP

Explanation: ARP (Address Resolution Protocol) maps a known IPv4 address to the MAC address of a host on the same broadcast domain. DNS resolves names to IP addresses, DHCP leases IP addresses, and ICMP handles control messages such as ping.

5Which transport-layer protocol is connectionless and has no built-in retransmission?

A.TCP

B.UDP

C.SCTP

D.ICMP

Explanation: UDP is connectionless: it sends datagrams without a handshake or guaranteed delivery, making it suitable for low-latency traffic such as DNS queries, voice, video, and streaming telemetry. TCP is connection-oriented with sequence numbers and retransmission.

6What well-known UDP port does DHCP use to send messages from a client to a server?

A.53

B.67

C.68

D.123

Explanation: DHCP servers listen on UDP port 67 and clients use UDP port 68. DNS uses 53, NTP uses 123. Knowing well-known ports is needed when configuring ACLs and helpers (ip helper-address) on Dell OS10.

7Which IEEE standard defines VLAN tagging using a 4-byte Ethernet header insertion?

A.802.1D

B.802.1Q

C.802.1X

D.802.3ad

Explanation: IEEE 802.1Q defines VLAN tagging by inserting a 4-byte tag (TPID + TCI) into the Ethernet frame, including a 12-bit VLAN ID supporting up to 4094 usable VLANs. 802.1D is original spanning tree, 802.1X is port-based authentication, and 802.3ad (now 802.1AX) defines LACP.

8On a trunk port, which VLAN is sent untagged by default in 802.1Q?

A.Management VLAN

B.Native VLAN

C.Voice VLAN

D.Default VLAN 1

Explanation: The native VLAN on an 802.1Q trunk is sent untagged. By default the native VLAN is VLAN 1 on most platforms including Dell OS10, but it can be reconfigured per interface. A native VLAN mismatch between two trunked switches is a common operational error.

9Which Spanning Tree port state is used after listening but before forwarding?

A.Disabled

B.Blocking

C.Learning

D.Forwarding

Explanation: Classic 802.1D STP transitions are Disabled, Blocking, Listening, Learning, then Forwarding. Learning populates the MAC table without yet forwarding user frames. RSTP (802.1w) collapses these to Discarding, Learning, and Forwarding for faster convergence.

10In a leaf-spine fabric, what is the typical role of a spine switch?

A.Connect end servers and storage

B.Provide the high-speed transit between every leaf

C.Terminate WAN circuits

D.Host the firewall function

Explanation: In a CLOS leaf-spine fabric, every leaf connects to every spine and spines provide the high-speed transit fabric. Servers and storage attach to leaves (top-of-rack). This produces equal-cost paths and predictable latency, ideal for east-west traffic in modern data centers.

About the Dell Networking Associate (D-NWG-FN-23) Exam

The Dell Technologies Networking Associate (D-NWG-FN-23) certification validates entry-level networking knowledge across the Dell PowerSwitch portfolio, OS10 Enterprise Edition, leaf-spine EVPN-VXLAN data center fabrics, VLT high availability, OSPF and BGP routing, QoS, data center bridging (PFC/ETS), management, and automation with Ansible and the OS10 REST API.

Assessment

60 multiple-choice questions covering networking fundamentals, Layer 2 switching, Layer 3 routing, the Dell PowerSwitch portfolio, OS10, EVPN-VXLAN data center fabric, VLT, QoS, security, management, and automation

Time Limit

90 minutes

Passing Score

63%

Exam Fee

~$230 (Dell Technologies / Pearson VUE)

Dell Networking Associate (D-NWG-FN-23) Exam Content Outline

15%

Networking Fundamentals

OSI and TCP/IP models, Ethernet frames, IPv4 and IPv6 addressing, CIDR/VLSM, ARP/ICMP/TCP/UDP, DHCP, DNS, and NAT/PAT

20%

Layer 2 Switching

VLANs (802.1Q, native, voice), STP variants (RSTP/MSTP/PVST+), LACP and port-channels, MLAG/VLT, storm control, and BPDU protection

15%

Layer 3 Routing

Static and default routes, OSPFv2/v3 (areas, LSAs, neighbor states), BGP (eBGP/iBGP, attributes), and VRF Lite tenant isolation

15%

Dell PowerSwitch Portfolio and OS10

PowerSwitch families (N/S/Z series), OS10 Enterprise Edition CLI modes, configuration management, ZTP, REST API, and image management

15%

Data Center Fabric (EVPN-VXLAN)

Leaf-spine and CLOS designs, ECMP, VXLAN encapsulation, MP-BGP EVPN with Type-2/3/4/5 routes, anycast gateway, multi-homing/ESI, and symmetric IRB

10%

High Availability and DCB

VLT and VLTi, peer-routing, VRRP, NSF/NSR, ISSU, and data center bridging (PFC, ETS, DCBX, RoCE/FCoE)

QoS and Security

DSCP markings, queueing strategies (strict-priority/WRR/DWRR), WRED, MACsec, port-security, DAI, IPSG, DHCP snooping, 802.1X, ACLs, and CoPP

Management and Automation

SNMPv3, syslog, NTP, sFlow/IPFIX/gNMI streaming telemetry, AAA (RADIUS/TACACS+), SmartFabric Director, OMNI, Ansible, Python (netmiko), and Terraform

How to Pass the Dell Networking Associate (D-NWG-FN-23) Exam

What You Need to Know

Passing score: 63%
Assessment: 60 multiple-choice questions covering networking fundamentals, Layer 2 switching, Layer 3 routing, the Dell PowerSwitch portfolio, OS10, EVPN-VXLAN data center fabric, VLT, QoS, security, management, and automation
Time limit: 90 minutes
Exam fee: ~$230

Keys to Passing

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

Dell Networking Associate (D-NWG-FN-23) Study Tips from Top Performers

1Master subnetting and CIDR cold — exam questions assume you can compute network/host counts and longest-prefix matches without a calculator

2Build hands-on OS10 muscle memory using Dell's free Virtual Switch (OS10VE) — knowing 'show ip route', 'show vlan', 'show spanning-tree', and 'show ip bgp summary' is critical

3Understand VLT deeply: VLTi role, peer-routing, failure modes, and how VLT pairs interact with EVPN-VXLAN anycast VTEPs

4Learn the EVPN Type-2/3/4/5 route types and what each one carries — this is heavily tested and underlies modern Dell fabric designs

5Study PFC + ETS + ECN for RoCE storage transport, since lossless storage is a major Dell value proposition

6Practice OSPF and BGP fundamentals — neighbor states, LSA types, area types, and the BGP path-selection order are common exam questions

Frequently Asked Questions

What is the Dell Networking Associate (D-NWG-FN-23) exam?

The Dell Technologies Networking Associate exam (D-NWG-FN-23) is an entry-level certification that validates knowledge of networking fundamentals, Layer 2 switching, Layer 3 routing, the Dell PowerSwitch portfolio, OS10 Enterprise Edition, EVPN-VXLAN data center fabrics, VLT, QoS, DCB, security, and management. It targets Dell partner professionals and IT staff working with Dell networking gear.

How many questions are on the Dell D-NWG-FN-23 exam?

The exam contains 60 multiple-choice questions with a 90-minute time limit. You need to score at least 63% (approximately 38 correct answers) to pass. Questions span networking fundamentals, switching and routing, the Dell PowerSwitch and OS10 portfolio, EVPN-VXLAN, VLT, QoS, security, and management.

What topics does the Dell Networking Associate exam cover?

The exam covers eight main areas: networking fundamentals (OSI/TCP-IP, IPv4/IPv6, ARP, DHCP, DNS), Layer 2 switching (VLANs, STP, LACP, VLT, storm control), Layer 3 routing (OSPF, BGP, VRF), the Dell PowerSwitch portfolio and OS10, EVPN-VXLAN data center fabric, high availability and DCB (PFC/ETS for RoCE/FCoE), QoS and security (MACsec, 802.1X, ACLs, CoPP), and management and automation (SNMPv3, gNMI, Ansible, REST API).

How much does the Dell D-NWG-FN-23 exam cost?

The Dell Technologies Networking Associate exam costs approximately $230 USD per attempt and is administered through Pearson VUE testing centers or online proctoring. Dell partner organizations may provide vouchers or training discounts. The credential is valid for three years before recertification is required.

Do I need experience to take the Dell Networking Associate exam?

There are no formal prerequisites, but Dell recommends 6-12 months of exposure to enterprise networking and basic familiarity with Dell PowerSwitch hardware and OS10. Completion of Dell's official Networking Associate training course or equivalent self-study significantly improves pass rates.

What Dell products and technologies should I study for D-NWG-FN-23?

Focus on the Dell PowerSwitch families (N-series for SMB, S-series ToR, Z-series spine), OS10 Enterprise Edition CLI and REST API, VLT (Virtual Link Trunking), EVPN-VXLAN fabric design with anycast gateway, DCB features (PFC/ETS for RoCE storage), SmartFabric Director, OpenManage Network Integration (OMNI) for vCenter, and automation with Ansible's dellos10 collection.

Is the Dell Networking Associate exam available online?

Yes, the D-NWG-FN-23 exam is available through Pearson VUE both at physical testing centers and via online proctored delivery. Online testing requires a webcam, microphone, government-issued photo ID, and a quiet, private testing environment with stable internet connectivity.

How should I prepare for the Dell D-NWG-FN-23 exam?

Build a strong networking foundation (OSI/TCP-IP, subnetting, VLANs, STP, OSPF, BGP), learn the Dell PowerSwitch portfolio and OS10 CLI hands-on (use a vSwitch lab if hardware isn't available), study EVPN-VXLAN with MP-BGP control plane and VLT designs, practice with free practice questions, and review automation tools (Ansible dellos10, REST API). Plan 4-6 weeks of focused study.