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Pass Guaranteed Quiz Useful Juniper - JN0-280 - Data Center, Associate (JNCIA-DC) Fresh Dumps

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Juniper JN0-280 Certification Exam is a valuable certification for IT professionals who are interested in working with data center technologies. Data Center, Associate (JNCIA-DC) certification exam covers a range of topics and is designed to test the candidate's ability to design and implement data center networks using Juniper Networks equipment. Data Center, Associate (JNCIA-DC) certification is a prerequisite for higher-level certification exams and is valid for three years.

Passing the JNCIA-DC exam is a significant achievement for IT professionals seeking to build a career in data center technologies. Data Center, Associate (JNCIA-DC) certification is recognized globally and is highly respected in the industry. Data Center, Associate (JNCIA-DC) certification is also a stepping stone towards advanced certifications such as the Juniper Networks Certified Professional Data Center (JNCIP-DC) and Juniper Networks Certified Expert Data Center (JNCIE-DC) certifications.

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Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q156-Q161):

NEW QUESTION # 156
When configuring MAC address filtering on a Junos switch, which feature is primarily used?

A. Firewall filters
B. Port security
C. Access Control Lists (ACLs)
D. RADIUS

Answer: B

NEW QUESTION # 157
When troubleshooting issues with static routes, what is a key factor to check first?

A. If the routing table has enough memory
B. The correctness of the specified next-hop addresses
C. The speed of the router's CPU
D. The number of aggregate routes configured

Answer: B

NEW QUESTION # 158
What does MACsec stand for?

A. Media Access Control Sublayer Encryption
B. Media Access Control Security
C. MAC Sublayer Encryption
D. MAC Security

Answer: B

NEW QUESTION # 159
You are troubleshooting a downed BGP session.

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

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

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 # 160
Exhibit:

How many stages are shown in the exhibit?

A. 0
B. 1
C. 2
D. 3

Answer: D

Explanation:
The exhibit shows aFolded IP Clos Architecture, which is also referred to as a3-stage Closnetwork design.
This architecture typically consists of two layers of switches:
* Spine Layer: The top row of switches.
* Leaf Layer: The bottom row of switches.
Step-by-Step Breakdown:
* Clos Architecture:A 3-stage Clos network has two types of devices: spine and leaf. In this design, each leaf switch connects to every spine switch, providing a high level of redundancy and load balancing.
* Stage Explanation:
* Stage 1: The first set of leaf switches.
* Stage 2: The spine switches.
* Stage 3: The second set of leaf switches.
TheFolded Closarchitecture shown here effectively "folds" the 3-stage design by combining the ingress and egress leaf layers into one, reducing it to two visible layers, but still maintaining the overall3-stage architecture.
Juniper Reference:
* IP Clos Architecture: The 3-stage Clos design is commonly used in modern data centers for high availability, redundancy, and scalability.

NEW QUESTION # 161
......

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