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100+ Free Extreme Data Center (VOSS/VSP) Practice Questions
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On a VOSS switch, which command creates a backbone VLAN (B-VLAN) used to carry SPBM traffic?
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2026 Statistics
Key Facts: Extreme Data Center (VOSS/VSP) Exam
75%
Passing Score
Extreme Networks Technical Training Data Sheet
~1 hour
Knowledge Exam Duration
Extreme Networks
$395
Retake Fee (USD)
Extreme Networks
3 years
Certification Validity
Extreme Academy
ProctorU
Exam Proctor
Extreme Networks
MCQ + Lab
Professional Assessment Format
Extreme Networks
The Extreme Networks Data Center (VOSS/VSP) exam is a proctored multiple-choice knowledge exam (passed at 75% or above) plus a practical lab, with about one hour for the knowledge exam and a 3-year certification validity. One attempt is included with the course fee; retakes cost $395. Content covers VOSS/VSP platform fundamentals, the VOSS CLI, SPBM/Fabric Connect (IS-IS, I-SID, L2/L3 VSN, IP Shortcuts, multicast), and data center design and troubleshooting with SMLT/vIST. Extreme does not publish a fixed question count or per-domain weighting.
Sample Extreme Data Center (VOSS/VSP) Practice Questions
Try these sample questions to test your Extreme Data Center (VOSS/VSP) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which operating system runs on the Extreme Networks VSP series switches that are positioned for data center Fabric Connect deployments?
A.ExtremeXOS (EXOS)
B.VSP Operating System Software (VOSS)
C.Boot Operating System Software (BOSS)
D.Cisco IOS-XE
Explanation: The Virtual Services Platform (VSP) family — VSP 4900, 7200, 7400, 8200, 8400, and 8600 — runs VOSS, the VSP Operating System Software. VOSS provides the native Shortest Path Bridging MAC (SPBM) Fabric Connect implementation used in Extreme data center designs.
2A network architect is selecting a high-density spine switch for a leaf-spine data center fabric that must support 100GbE uplinks and run VOSS. Which VSP platform is most appropriate?
A.VSP 7400
B.VSP 8600 only
C.ExtremeAccess Platform XA1400
D.ERS 4900
Explanation: The VSP 7400 is a fixed-form high-density VOSS switch offering 25/100GbE ports, making it a common choice for data center leaf and spine roles in Fabric Connect designs. It supports SPBM natively along with SMLT/vIST.
3Before SPB, SMLT, vIST, Fabric Extend, or VXLAN Gateway can be enabled on certain VOSS switches, what must be configured because these advanced features require loopback ports?
A.The 'router isis enable' command only
B.The boot config flag advanced-feature-bandwidth-reservation (Full Feature mode)
C.A static default route to the management gateway
D.Jumbo frames on all access ports
Explanation: On VOSS switches that need Full Feature mode, you set 'boot config flags advanced-feature-bandwidth-reservation [low | high]'. This reassigns some front-panel ports as internal loopback ports required for Fabric Extend, SPB, SMLT, vIST, VXLAN Gateway, and similar advanced features.
4In VOSS terminology, what does a Circuitless IP (CLIP) interface provide?
A.A physical out-of-band management Ethernet port
B.A loopback IP address that is always reachable and can be advertised via IS-IS
C.A spanning-tree root bridge priority value
D.A VLAN reserved for SPBM backbone traffic
Explanation: A CLIP (Circuitless IP) is a loopback IP interface on a VOSS switch. Because it is not tied to a physical port, it remains reachable as long as any path exists, and it is commonly advertised through IS-IS so the node can be managed from its loopback in large fabrics.
5Which statement about stacking is true for VOSS-based VSP switches in a data center cluster?
A.VSP switches stack into a single logical unit like EXOS Summit stacks
B.VSP switches do not stack; redundancy between two switches is achieved with vIST/SMLT
C.VSP switches require VSF stacking cables for redundancy
D.VSP switches only support redundancy through MSTP
Explanation: Unlike EXOS Summit stacking, VOSS VSP switches do not form a single stacked logical unit. Two VSP switches provide active-active redundancy by forming a vIST (virtual Inter-Switch Trunk) cluster and presenting SMLT links to downstream devices.
6On a VOSS switch, which feature is enabled with a base license and lets a node reach loopback (CLIP) IPs of other VSPs across the fabric using IS-IS without per-VRF segmentation?
A.Layer 3 VSN
B.IP Shortcuts
C.Fabric Attach
D.Private VLANs
Explanation: IP Shortcuts provide IP routing across the SPBM fabric within the Global Routing Table (GRT) and are available with the VOSS base license. After enabling 'spbm 1 ip enable' under router IS-IS and setting an ip-source-address, CLIP loopbacks are advertised and reachable fabric-wide.
7A VOSS administrator runs 'show mgmt interface' and sees an interface of TYPE 'OOB'. What does this represent?
A.A CLIP loopback advertised in IS-IS
B.The dedicated out-of-band physical management Ethernet port
C.An in-band VLAN management interface
D.A backbone VLAN used for SPBM
Explanation: In VOSS Segmented Management, an interface of type OOB is the dedicated out-of-band management Ethernet port, which is isolated from the data-plane ports and VLANs. VOSS also supports CLIP and VLAN management interface types alongside OOB.
8Which VOSS interactive setup script walks an administrator through configuring SPB Ethertype, the SPBM instance, primary and secondary B-VLANs, IS-IS system ID, nickname, and manual area?
A.run topology
B.run spbm
C.configure fabric wizard
D.spbm autoconfig
Explanation: The 'run spbm' script guides the administrator through optimal SPB setup, prompting for the SPB Ethertype, SPBM instance number, primary/secondary B-VLANs, IS-IS system-id, SPB nickname, and the manual area (commonly 49.0000). It temporarily flaps IS-IS/SPBM while applying the configuration.
9What is the function of the SPB nickname configured on a VOSS node (for example, 'spbm 1 nick-name 0.00.74')?
A.It sets the device hostname shown in the CLI prompt
B.It is a unique 20-bit SPSourceID identifying the SPBM node within the topology
C.It defines the management IP subnet mask
D.It selects which VLANs are tagged on uplinks
Explanation: The SPB nickname is a unique node identifier (SPSourceID) used by SPBM, advertised in IS-IS TLV 144. It uniquely identifies each backbone node so that multicast and service forwarding can reference the correct source within the fabric.
10Which privilege/access level allows the read-write-all (rwa) user on a VOSS switch to change passwords for all access levels?
A.read-only
B.layer1
C.read-write-all (rwa)
D.layer2
Explanation: On VOSS, only the read-write-all (rwa) user can change passwords for every access level using the 'cli password' command. Other levels such as read-only, layer1, and layer2 have restricted privileges and cannot manage all account passwords.
About the Extreme Data Center (VOSS/VSP) Practice Questions
Verified exam format metadata for Extreme Networks Certified - Data Center (VOSS/VSP Fabric) is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.