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Juniper JN0-280 Study Material - Reliable JN0-280 Test Syllabus

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Juniper JN0-280: Data Center, Associate (JNCIA-DC) exam is an entry-level certification that validates the foundational knowledge required to install, configure, and manage Juniper Networks data center devices and technologies. Data Center, Associate (JNCIA-DC) certification is recognized globally and is highly respected in the industry. Passing the JNCIA-DC exam is a significant achievement for IT professionals seeking to build a career in data center technologies.

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Juniper JN0-280 (Data Center, Associate (JNCIA-DC)) Certification Exam is a renowned certification program that is designed to validate the knowledge and skills of IT professionals in data center technologies. JN0-280 exam is intended to test the knowledge and skills of individuals in the design, configuration, and management of Juniper Networks data center devices and networks. Data Center, Associate (JNCIA-DC) certification program is ideal for individuals who wish to demonstrate their expertise in data center networking and are looking to advance their careers in this field.

Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q140-Q145):

NEW QUESTION # 140
Which statement is correct about OSPF?

A. OSPF is a path-vector protocol
B. OSPF is a device-state protocol
C. OSPF is a distance-vector protocol
D. OSPF is link-state protocol

Answer: D

NEW QUESTION # 141
What does the qualified-next-hop feature do when configuring a static route?

A. It allows you to specify an independent route preference value for an additional next hop.
B. It instructs the device to looks up a static route s next-hop that is not directly connected.
C. It instructs the device to verify the next-hop is reachable before activating the route.
D. It specifies the IP address of the directly connected device.

Answer: A

NEW QUESTION # 142
What is the main purpose of Bidirectional Forwarding Detection (BFD)?

A. to detect the forwarding protocol
B. to detect network path failures
C. to determine if the forwarding routes are correct
D. to determine packet round-trip latency

Answer: B

Explanation:
Bidirectional Forwarding Detection (BFD)is a network protocol used to detect failures in the network path between two devices quickly.
Step-by-Step Breakdown:
* Path Failure Detection:BFD provides a low-overhead mechanism for detecting failures in forwarding paths across Layer 3 networks. It is much faster than traditional routing protocol timers and can detect failures within milliseconds.
* BFD in Routing:BFD can be integrated with routing protocols like OSPF, BGP, or IS-IS to trigger a faster convergence when a network path goes down.
Juniper Reference:
* BFD Configuration: Juniper devices use BFD to monitor network paths and ensure fast failure detection, enhancing network resilience.

NEW QUESTION # 143
What are two common reasons for BGP routes to be in the hidden state? (Choose two.)

A. The BGP neighbor is in a different autonomous system
B. Routes are being filtered from the inet.2 routing table
C. The next hop is unresolvable
D. Routes are being rejected by a policy

Answer: C,D

NEW QUESTION # 144
You are troubleshooting a downed BGP session.

Referring to the exhibit, what is the cause of the problem?

A. The UDP session between the peers has not been established.
B. The TCP session between the peers has not been established.
C. The local peer has sent an Update message but not received one from the remote peer.
D. The local peer has sent an Open message but not received one from the remote peer.

Answer: B

Explanation:
The BGP session in the exhibit shows the state asConnect, which indicates that theTCP sessionbetween the BGP peers has not been fully established.
Step-by-Step Breakdown:
* BGP State "Connect":
* TheConnectstate is the second stage in the BGP finite state machine (FSM). At this stage, BGP is trying to establish aTCP sessionwith the peer, but the session has not yet been successfully established.
* A successful TCP three-way handshake (SYN, SYN-ACK, ACK) is required before BGP can progress to theOpenSentstate, where the peers exchange BGP Open messages.
* Possible Causes:
* A firewall blocking TCP port179.
* Incorrect IP addresses or network connectivity issues between the BGP peers.
Juniper Reference:
* BGP Troubleshooting: In Junos, if a BGP session is stuck in theConnectstate, the issue is likely due to a failure in establishing the underlying TCP connection.

NEW QUESTION # 145
......

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