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Data Center, Associate (JNCIA-DC) JN0-280 Dumps

March 29,2024

The JN0-280 Data Center, Associate (JNCIA-DC) is recognized as one of the most sought-after Juniper Certification exams. Passcert provides the latest and most comprehensive Data Center, Associate (JNCIA-DC) JN0-280 Dumps which encompass all the essential knowledge points that are integral to the actual exam. Using these Data Center, Associate (JNCIA-DC) JN0-280 Dumps, candidates can identify their strengths and weaknesses, which is key to formulating an effective test-taking strategy. They also provide a realistic insight into the potential score one can expect in the actual exam. The Data Center, Associate (JNCIA-DC) JN0-280 Dumps, with their comprehensive and well-explained content, serve as a productive tool to ensure a remarkable success rate in the JN0-280 exam.

Data Center, Associate (JNCIA-DC)

The Data Center track enables you to demonstrate competence with data center technologies and related configuration and troubleshooting skills. JNCIA-DC, the associate-level certification in this track, is designed for data center networking professionals with introductory-level knowledge of the Juniper Networks Junos software and data center devices. The written exam verifies your understanding of data center technologies, related platform configuration, and troubleshooting skills.

Exam Details

Exam Code: JN0-280

Prerequisite Certification: None

Delivered by Pearson VUE

Exam Length: 90 minutes

Exam Type: 65 multiple-choice questions

Software Versions: Junos 20.4

Exam Objectives

Data Center Architectures

Identify concepts and general features of Data Center architectures

Traditional Architectures (multi-tier)

IP-Fabric Architectures (Spine/Leaf)

Layer 2 and Layer 3 strategies

Overlay Network versus Underlay Network (Very Basic)

EVPN/VXLAN basics/purpose

Layer 2 Switching, VLANs and Security

Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS

Ethernet switching/bridging concepts and operations

Identify the concepts, benefits, or functionality of VLANs

Port modes

VLAN Tagging

IRB

Identify the concepts, benefits, or functionality of Layer 2 Security

MACsec

MAC address control/filtering

Storm Control

Describe how to configure, monitor, or troubleshoot Layer 2 switching, VLANs, or security

Ethernet switching/bridging

VLANs

Layer 2 security features

Protocol-Independent Routing

Identify the concepts, operation, or functionality of various protocol-independent routing components

Static, aggregate, and generated routes

Martian addresses

Routing instances, including RIB groups

Load balancing

Filter-based forwarding

Describe how to configure, monitor, or troubleshoot various protocol-independent routing components

Static, aggregate, and generated routes

Load balancing

Data Center Routing Protocols BGP/OSPF

Identify the concepts, operation, or functionality of OSPF

Link-state database

OSPF packet types

Router ID

Adjacencies and neighbors

Designated router (DR) and backup designated router (BDR)

OSPF area and router types

LSA packet types

Describe how to configure, monitor, or troubleshoot OSPF

Areas, interfaces, and neighbors

Additional basic options

Routing policy application

Troubleshooting tools

Identify the concepts, operation, or functionality of BGP

BGP basic operation

BGP message types

Attributes

Route/path selection process

IBGP and EBGP functionality and interaction

Describe how to configure, monitor, or troubleshoot BGP

Groups and peers

Additional basic options

Routing policy application

High Availability (HA)

Identify the concepts, benefits, applications, or requirements of high availability

Link aggregation groups (LAG)

Graceful restart (GR)

Bidirectional Forwarding Detection (BFD)

Virtual Chassis

Describe how to configure, monitor, or troubleshoot high availability components

Link aggregation groups (LAG)

Graceful restart (GR)

Bidirectional Forwarding Detection (BFD)

Share Data Center, Associate (JNCIA-DC) JN0-280 Free Dumps

1. What are two common reasons for BGP routes to be in the hidden state? (Choose two.)

A. Routes are being rejected by a policy

B. Routes are being filtered from the inet.2 routing table

C. The next hop is unresolvable

D. The BGP neighbor is in a different autonomous system

Answer: A, C

2. You have configured a load balancing policy. Which statement is correct about applying the policy?

A. The policy is applied as an export policy under the routing protocol’s hierarchy.

B. The policy is applied as an export policy under routing-options forwarding table.

C. The policy is applied as an import policy under the routing protocol’s hierarchy.

D. The policy is applied as an import policy under routing-options forwarding table.

Answer: B

3. Under which Junos hierarchy is a static route configured?

A. system

B. routing-instances

C. routing-options

D. protocols

Answer: C

4. How does a layer 2 switch populate its bridge table?

A. It stores the protocol number of frames traversing the network.

B. It stores both the source and destination MAC addresses of frames traversing the network.

C. It stores the destination MAC address of frames traversing the network.

D. It stores the source MAC address of frames traversing the network.

Answer: D

5. In the Junos OS, what is the default behavior of a switch when it receives a frame with an unknown destination MAC address?

A. It discards the frame.

B. It floods the frame out of all ports except the one it was received on.

C. It sends the frame to its default gateway.

D. It buffers the frame until the MAC address can be learned.

Answer: B

6. Which two protocols can you use for a data center underlay network? (Choose two)

A. EBGP

B. OSPF

C. VXLAN

D. EVPN

Answer: A, B

7. In the context of data center networking, what is the primary purpose of an Underlay Network?

A. To provide a physical infrastructure for an Overlay Network.

B. To handle external network connections exclusively.

C. To facilitate virtual machine migrations.

D. To encrypt data traffic between servers.

Answer: A

8. With regards to graceful restart, which two statements are true? (Choose two.)

A. A supported routing protocol, such as BGP, must be operational for graceful restart to work.

B. NSR must be enabled for graceful restart to work.

C. Dual routing engines are required for graceful restart to work.

D. The network topology must be stable for graceful restart to work.

Answer: A, D

9. EVPN/VXLAN is primarily used in modern data centers to:

A. Increase the physical distance between data centers.

B. Provide Layer 2 connectivity over a Layer 3 network.

C. Replace traditional routing protocols.

D. Enhance the physical security of the data center.

Answer: B

10. Which two statements are correct about aggregated Ethernet bundles? (Choose two.)

A. You must enable the chassis to support aggregated Ethernet interfaces.

B. You must purchase a services license for the chassis to support aggregate Ethernet interfaces.

C. You must specify which interfaces are members of a specific aggregated Ethernet bundle.

D. You must enable LACP when configuring aggregated Ethernet bundles.

Answer: A, C

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