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Latest JN0-281 Questions and Answers 2024, Juniper JNCIA-DC | SPOTO

Get ready to pass the JN0-281 exam with the latest Juniper JNCIA-DC questions and answers for 2024, available for free through SPOTO. The JNCIA-DC certification focuses on foundational knowledge of Junos OS and Juniper's data center technologies, covering key areas like routing, switching, and network troubleshooting. This exam is ideal for professionals looking to build their expertise in data center networking and enhance their career prospects with Juniper Networks. SPOTO offers updated practice questions, including detailed explanations, to help you understand the concepts and prepare effectively. The JN0-281 exam tests your ability to manage and configure Juniper data center devices, ensuring you're well-prepared to tackle real-world networking challenges. Use SPOTO's resources to get ahead and pass your JNCIA-DC certification with confidence.
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Question #1
What are two types of data center network overlays supported by Juniper Networks? (Choose two.)
A. Generic Network Virtualization Encapsulation
B. centrally-routed bridging
C. edge-routed bridging
D. Stateless Transport Tunneling
View answer
Correct Answer: BC

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Question #2
You must implement security services between VMs that are hosted on the same server. You need to perform Layer 3 routing, UTM, IPS, and NAT services while minimizing space and resource usage. Which Junos product will satisfy the requirements?
A. MX
B. SRX
C. vMX
D. vSRX
View answer
Correct Answer: D
Question #3
Click the Exhibit button. Referring to the exhibit, what should you do to increase high availability?
A. Deploy MC-LAG between the access layer and the servers
B. Deploy MC-LAG between the distribution layer and the access layer
C. Deploy a chassis cluster at the access layer
D. Deploy a Virtual Chassis at the distribution layer
View answer
Correct Answer: B
Question #4
Which two characteristics describe a one-ARM firewall deployment? (Choose two.)
A. The number of interfaces required for the infrastructure increases
B. The flexibility of selective services on the firewall is reduced
C. All traffic passes through the firewall before passing through the core and aggregation tiers
D. Select traffic is directed to or bypasses the firewall
View answer
Correct Answer: BD
Question #5
A customer asks you if they should implement nonstop active routing (NSR) in some cases to replace graceful restart in their data center. In this scenario, which two statements are true? (Choose two.)
A. NSR saves routing protocol information by running the routing protocol process (rpd) on the backup Routing Engine
B. NSR is self-contained and does not rely on helper routers (or switches) to assist the routing platform in restoring routing protocol information
C. NSR accounts for large and small traffic flows to ensure coherent forwarding path selection during failover
D. NSR delivers TCP/UDP stream status reducing control plane stress for other networking devices through concatenated announcements from the routing protocol process (rpd)
View answer
Correct Answer: AB
Question #6
Click the Exhibit button. For a fully configured and functional IP fabric underlay as shown in the exhibit, how many external BGP neighbors are expected to be in established state for Leaf 1?
A. 4
B. 5
C. 2
D. 3
View answer
Correct Answer: C
Question #7
Which devices are recommended by Juniper Networks as edge routers in a data center?
A. EX Series
B. QFX Series
C. MX Series
D. CTP Series
View answer
Correct Answer: C
Question #8
You must implement Layer 4 security services between VMs that are hosted on the same server. You require a low footprint with Docker support. In this scenario, which Juniper Networks product would you deploy?
A. vSRX
B. cRPD
C. cSRX
D. QFX
View answer
Correct Answer: C
Question #9
Click the Exhibit button. Traffic congestion has been noticed when S1 is sending traffic to S2. You must design a CoS deployment to address the traffic congestion issue. Referring to the exhibit, which statement is true?
A. You should deploy CoS on R1 and R4
B. You should deploy CoS on R1, R3 and R4
C. You should deploy CoS on S1, R1, R2, R3, R4, and S2
D. You should deploy CoS on R1, R2, R3, and R4
View answer
Correct Answer: D
Question #10
What would you use to balance traffic loads between servers in a Clos Layer 3 data center fabric?
A. MC-LAG
B. multicast protocols
C. ECMP routing
D. BGP export policies
View answer
Correct Answer: C
Question #11
When using VPLS for a Data Center Interconnect, which statement about MAC learning is correct?
A. MAC learning is not used
B. Management plane MAC learning is used
C. Control plane MAC learning is used
D. Data plane MAC learning is used
View answer
Correct Answer: D
Question #12
You must implement high availability features in the design for a data center. Every network device in this design will have dual routing engines. In this scenario, which two high availability features should you use? (Choose two.)
A. GRES with NSR
B. GRES with NSB
C. NSR with graceful restart
D. NSR with NSB
View answer
Correct Answer: AB
Question #13
How many inches does one RU equal?
A. 1
B. 1
C. 1
D. 1
View answer
Correct Answer: D
Question #14
Which three statements about Contrail Networking are true? (Choose three.)
A. It is used to service chain network functions
B. It is used to program physical network functions
C. It is used to virtualize and program networks
D. It is used to virtualize and program compute
E. It is used to create distributed cloud storage
View answer
Correct Answer: ACE
Question #15
Two data centers must be able to operate with a stretched Layer 2 network. You are concerned about unnecessary traffic on the Data Center Interconnect (DCI). You do not want packets to trombone over the DCI, have excessive unknown unicast packet flooding over the DCI, or have excessive ARP flooding over the DCI. Which technology satisfies the requirements in this scenario?
A. EVPN
B. IPsec
C. VPLS
D. GRE over IP
View answer
Correct Answer: A
Question #16
You are designing an IP fabric using IBGP as your underlay. In this scenario, which statement is correct?
A. Confederations are not allowed in an IBGP IP traffic
B. Route reflectors should be implemented on your spine devices
C. IBGP ensures that traffic will be load balanced by default
D. You must ensure that you have a full mesh with all devices
View answer
Correct Answer: B
Question #17
You want to protect a hypervisor in your data center with a security solution that is installed on the hypervisor and provides firewall protection to applications. Traffic to one of the virtual servers must be subject to a NAT policy before communicating with the virtual server. Which two solutions would you use to satisfy this requirement? (Choose two.)
A. vSRX
B. vQFX
C. ATP Cloud
D. cSRX
View answer
Correct Answer: AD
Question #18
Which data center architecture is open, flexible, and uses Layer 3 only?
A. STP
B. IP fabric
C. virtual chassis
D. MC-LAG
View answer
Correct Answer: B
Question #19
Which statement is true about traffic prioritization?
A. PFC and Ethernet PAUSE produce the same result
B. FCoE does not require DCB
C. CoS is the treatment of traffic end-to-end
D. QoS is experienced hop-by-hop
View answer
Correct Answer: D
Question #20
You are designing a Control-based SDN overlay network. IP filtering and tenant separation for Layer 3 and Layer 4 traffic is required for this installation.In this scenario, which Contrail component performs this function?
A. Switch
B. ontrol node
C. Router
D. ompute node
View answer
Correct Answer: C
Question #21
You are designing a large IP fabric and must determine if you should use IBGP or EBGP to signal your underlay. Which statement is correct in this scenario?
A. IBGP will require a full mesh on all devices
B. IBGP will allow your network to scale to larger device numbers
C. EBGP will require more BGP neighbors per device
D. EBGP will require that an IGP is also configured
View answer
Correct Answer: B
Question #22
Which statement is correct about a Junos Fusion Data Center fabric deployment?
A. Each aggregation device is managed separately
B. Each satellite device is managed separately
C. At satellite devices are managed and configured by an aggregation device
D. All satellite and aggregation devices must be running the same version of Junos OS
View answer
Correct Answer: C
Question #23
You want to use the Intrusion Prevention System features of a vSRX virtual firewall to protect systems from attacks embedded in traffic. In this scenario, which three technologies would be used? (Choose three.)
A. protocol decodes
B. zero-day protection
C. traffic normalization
D. application firewall
E. application tracking
View answer
Correct Answer: BCD
Question #24
What are two elements of data center security? (Choose two.)
A. segmentation with VLANs in hypervisors
B. DDoS protection
C. ATP Cloud advanced anti-malware
D. JIMS for user identify and management
View answer
Correct Answer: AB
Question #25
Which two statements describe the Contrail vRouter? (Choose two.)
A. It is forwarding plane that runs software on a virtualized server
B. It extends the network form physical routers and switches into an overlay network hosted in virtual server
C. It is responsible for providing the management, control, and analytics functions of the virtualized network
D. It provides the logically centralized control plane and management plane of the system
View answer
Correct Answer: AC
Question #26
You are designing a data center where all your servers in each rack will be connected to two top-of-rack (ToR) switches using Layer 2, as shown in the exhibit. You must implement a high availability solution that maintains link layer connectivity to each server when one of the ToR switches fails. In this scenario, which solution will accomplish this task?
A. VRRP
B. LAG
C. GRES with NSB
D. MC-LAG
View answer
Correct Answer: D
Question #27
You are seeking a server-virtualization security solution that is lightweight and will protect virtual machines from a variety of threats. Which platform should you choose in this scenario?
A. vSRX
B. vRR
C. vEPC
D. TCX
View answer
Correct Answer: A
Question #28
Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as their SDN controller. Which statement is true in this scenario?
A. All bare-metal servers must run a vSRX instance for overlay tunneling
B. All virtualized servers must run a vSRX instance for overlay tunneling
C. All bare-metal serer must run a vRouter for overlay tunneling
D. All virtualized servers must run a vRouter for overlay tunneling
View answer
Correct Answer: BC
Question #29
You are asked to create a new data center based on an IP fabric architecture. The data center must support many segmented applications that require Layer 2 adjacencies. You decide to use EVPN-VXLAN as an overlay technology to accomplish the task. To meet the requirements, each application will be placed in its own VLAN. In this scenario, what is required for communication between VLANs to occur?
A. IBGP and Q-in-Q
B. IBGP and MP-BGP
C. IBGP and MPLS
D. IBGP and GVRP
View answer
Correct Answer: B
Question #30
You are designing a Data Center Interconnect (DCI). You must ensure that the local PE learns the local MAC addresses and then distributes these learned MAC addresses to the remote PEs using the control plane. In this scenario, which DCI solution will satisfy the requirements?
A. Ethernet VPN
B. CCC
C. BGP Layer 2 VPNs
D. BGP Layer 2 circuits
View answer
Correct Answer: C
Question #31
You are inspecting a small data center your company just purchased. You notice several blank panels and cable management system components in a storage room that are not installed on the equipment racks. In this scenario, which two statements would you include in your inspection report? (Choose two.)
A. The blank panels were removed to improve cooling air flow through the racks
B. The cable management system function is cosmetic only and is not necessary
C. The cable management system should be installed as soon as possible
D. The blank panels should be installed as soon as possible
View answer
Correct Answer: CD
Question #32
You are designing an EVPN overlay architecture for your new data center fabric. You must ensure that the servers can be connected to multiple different leaf nodes. Which feature must be configured to allow for this functionality?
A. Virtual Router Redundancy Protocol
B. Virtual Chassis
C. Ethernet segment identifier
D. multichassis LAG
View answer
Correct Answer: D
Question #33
You are asked by the data center architecture team to evaluate redundancy and management options for server racks that have two or more switches to reduce the management footprint while maintaining redundancy. Which technology fulfills both requirements?
A. Virtual Chassis
B. ESI
C. Virtual Router Redundancy Protocol
D. MC-LAG
View answer
Correct Answer: A
Question #34
You want to encapsulate Layer 2 frames for transport across a Layer 3 network. Which three methods are supported by Juniper Networks to accomplish this task? (Choose three.)
A. EVPN
B. VXLAN
C. MPLS over GRE
D. Layer 3 VPN
E. MPLS over UDP
View answer
Correct Answer: ABC
Question #35
When considering data center security, which component is often seen as unimportant but is really the first line of defense?
A. guest access
B. native VLAN configuration
C. RBAC
D. physical security
View answer
Correct Answer: A
Question #36
You are designing a DCI strategy. You must provide a solution that meets the requirements shown below: -sub 50 ms failover to alternate path -supports L2 and L3 VPNs -supports traffic engineered paths Which technology would satisfy the requirements?
A. MPLS
B. GRE
C. BGP
D. IPsec
View answer
Correct Answer: A
Question #37
Which three statements are correct regarding a Clos-style IP fabric network? (Choose three.)
A. Spine nodes should not be interconnected
B. Spine nodes can be interconnected
C. Leaf nodes should be connected to spine nodes
D. Leaf nodes can be interconnected
E. Leaf nodes should not be interconnected
View answer
Correct Answer: ACE
Question #38
You are asked to design an IP fabric that uses the same routing protocol in both the underlay and overlay networks. Which routing protocol will satisfy this requirement?
A. MPLS
B. BGP
C. IS-IS
D. OSPF
View answer
Correct Answer: B
Question #39
A customer has concerns about various groups having the ability to easily access their corporate network infrastructure. They want to implement tighter controls for network infrastructure system access. Which three actions will accomplish this task? (Choose three.)
A. Open console port access
B. Disable root access
C. Use a secure access VPN
D. Provide local passwords
E. Use RADIUS accounting
View answer
Correct Answer: BCE

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