What does VXLAN add to a Layer 2 frame to enable tunneling?

A VXLAN header and UDP/IP encapsulation.

What is a common use of OSPF in a data center Layer 3 design?

To provide routing within a single autonomous system.

To replace the need for any Layer 2 switching.

To exchange routing information between different autonomous systems.

Which statement correctly describes a characteristic of Layer 3 routing in a data center?

Layer 3 routing forwards packets based on IP addresses and can route between different subnets.

Layer 3 routing uses MAC addresses to forward packets between different subnets.

Layer 3 routing does not require a routing table.

Layer 3 routing is limited to a single broadcast domain.

What is the primary role of Spanning Tree Protocol (STP) in a Layer 2 network?

To prevent loops by blocking redundant paths.

To encrypt data traversing the network.

To provide load balancing across multiple redundant links.

To route packets between different subnets.

What is a key benefit of using Virtual Chassis technology in a data center?

It allows multiple switches to operate as a single logical device.

It eliminates the need for any physical cabling between switches.

It only works with switches from different vendors.

It requires a separate routing protocol for each switch.

Juniper NetworksCertified Associate, Data Center

Domain 1Objective 3

Layer 2 and Layer 3 Strategies JN0-281 Practice Questions (Page 3)

Part of the Data Center Architectures domain, which makes up ~30% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~11–18 in this domain), expect 2–4 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

10concepts

Questions 11–15

11foundation · easy
What does VXLAN add to a Layer 2 frame to enable tunneling?
Select an answer first
12foundation · easy
What is a common use of OSPF in a data center Layer 3 design?
Select an answer first
13foundation · easy
Which statement correctly describes a characteristic of Layer 3 routing in a data center?
Select an answer first
14foundation · easy
What is the primary role of Spanning Tree Protocol (STP) in a Layer 2 network?
Select an answer first
15foundation · easy
What is a key benefit of using Virtual Chassis technology in a data center?
Select an answer first

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