Official RUCKUS RCNI Study Guide - Valid RCNI Exam Materials

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RUCKUS RCNI Exam Syllabus Topics:

TopicDetails
Topic 1
  • Foundational Networking Concepts: This section of the exam measures the skills of RUCKUS ICX Network Administrators and covers essential networking concepts. It includes VLAN design and configuration, STP and loop prevention protocols, PoE requirements, basic LAN concepts, Layer 3 routing configurations, and basic QoS concepts. Candidates should be able to demonstrate proficiency in designing VLANs for network segmentation.
Topic 2
  • ICX Solution Implementation: This significant portion of the exam assesses the skills of RUCKUS ICX Network Administrators in implementing ICX solutions. It covers ICX software management, stacking capabilities, PoE configuration, Layer 2
  • 3 protocols, and ICX services, IPv4
  • IPv6 addressing on switch interfaces, ICX switch management methods, and configuring multicast and security features. Candidates should be able to demonstrate proficiency in configuring stacking for scalable network deployments.
Topic 3
  • RUCKUS Products & Solutions: RUCKUS ICX networking Engineers are expected to showcase their knowledge of RUCKUS products and solutions in this section. It focuses primarily on the ICX product line, covering various switch models and their capabilities. Candidates should be familiar with the features, specifications, and use cases of different ICX switches.
Topic 4
  • ICX Solution Troubleshooting: RUCKUS ICX networking Engineers are expected to demonstrate troubleshooting skills in this section. It covers basic networking troubleshooting techniques and procedures for performing ICX switch recovery. Candidates should be able to identify and resolve common network issues in ICX environments.

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RUCKUS Certified Networking Implementer Sample Questions (Q33-Q38):

NEW QUESTION # 33
Which switch model provides the most 100Gb ports?

Answer: C


NEW QUESTION # 34
For multicast clients to stop receiving traffic using a leave request, which protocol must run on the local subnet?

Answer: B

Explanation:
The Internet Group Management Protocol (IGMP) is used by IPv4 hosts and adjacent routers to establish multicast group memberships. Different versions of IGMP provide varying capabilities for managing these memberships.
IGMPv2 introduced the ability for hosts to send "leave group" messages when they wish to unsubscribe from a multicast group. This feature allows for more efficient management of multicast group memberships by enabling routers to promptly stop forwarding multicast traffic to subnets where there are no interested receivers.
When a host leaves a multicast group in an IGMPv2-enabled network, the following process occurs:
* Leave Message Sent: The host sends an IGMP leave message to the all-routers multicast address (224.0.0.2).
* Query by Router: Upon receiving the leave message, the router sends a group-specific query to determine if there are any remaining members of the multicast group on the local subnet.
* Group Membership Determination: If no hosts respond to the query within a specified time, the router concludes that there are no remaining members and ceases forwarding multicast traffic for that group to the subnet.
This mechanism reduces unnecessary multicast traffic and optimizes network performance.
In contrast, IGMPv1 does not have a leave group message; routers must rely on a timeout period to determine the absence of group members, leading to increased leave latency.
For more detailed information on IGMPv2 and its leave group mechanism, refer to the Cisco documentation on IGMP.


NEW QUESTION # 35
Which statement is true about Secure Shell (SSH) functionality in FastIron 08.0.95?

Answer: A

Explanation:
In RUCKUS FastIron software version 08.0.95, the Secure Shell (SSH) server functionality is disabled by default for security reasons. This means that, out of the box, the device will not accept incoming SSH connections until the SSH server is explicitly enabled by the administrator.
To enable the SSH server on a RUCKUS ICX device, follow these steps:
* Access Global Configuration Mode:
enable
configure terminal
* Enable the SSH Server:
crypto key generate rsa
ip ssh server enable
* The crypto key generate rsa command generates the RSA key pair necessary for SSH encryption.
* The ip ssh server enable command starts the SSH server, allowing the device to accept incoming SSH connections.
* Save the Configuration:
write memory
This ensures that the SSH server remains enabled after a reboot.
It's important to note that while the SSH server is disabled by default, the SSH client functionality is enabled, allowing the device to initiate outbound SSH


NEW QUESTION # 36
Which switch model provides the most 100Gb ports?

Answer: C

Explanation:
The RUCKUS ICX7850 series offers high-performance switches suitable for core and aggregation layers in enterprise networks. Among the models in this series:
* ICX7850-32Q:
* Overview:
* Designed for high-density 100GbE deployments.
* Port Configuration:
* 32 ports of 100GbE QSFP28.
* Use Case:
* Ideal for environments requiring extensive 100GbE connectivity, such as data centers or large enterprise cores.
* ICX7850-48F:
* Overview:
* Designed for high-density 25GbE deployments with additional uplink capabilities.
* Port Configuration:
* 48 ports of 1/10/25GbE SFP28.
* 8 ports of 40/100GbE QSFP28 for uplinks or stacking.
* Use Case:
* Suitable for aggregation layers where a mix of 25GbE access ports and high-speed uplinks are needed.
* ICX7750-32Q:
* Overview:
* Part of the ICX7750 series, designed for high-performance aggregation and core layers.
* Port Configuration:
* 32 ports of 40GbE QSFP+.
* Supports breakout cables for 10GbE connections.
* Use Case:
* Suitable for networks requiring 40GbE connectivity with flexibility for 10GbE access.
* ICX7850-48FS:
* Overview:
* Similar to the ICX7850-48F but includes MACsec support for enhanced security.
* Port Configuration:
* 48 ports of 1/10/25GbE SFP28 with MACsec.
* 8 ports of 40/100GbE QSFP28 for uplinks or stacking.
* Use Case:
* Ideal for secure aggregation layers requiring MACsec encryption.
References:
* For detailed specifications, refer to the ICX 7850 data sheet: ICX 7850 Data Sheet In summary, the ICX7850-32Q model offers the highest number of 100GbE ports among the listed options, making it the optimal choice for scenarios demanding extensive 100GbE connectivity.


NEW QUESTION # 37
Review the following configuration.

A RADIUS server is connected and working. However, a switch technician has forgotten the RADIUS username/password for the ICX. When RADIUS is not functioning, they expect to be able to plug into the console port and use the local username/password as a backup.
The ICX does not accept the local password.
Why can't the technician log in?

Answer: C

Explanation:
* Understanding the Configuration:
* The command aaa authentication login default radius local specifies that the switch will attempt RADIUS authentication first. If the RADIUS server is unavailable, it will fallback to the local username/password.
* If the RADIUS server is operational, the local credentials will not be accepted, even over the console port.
* Why Can't the Technician Log In?
* The local username/password will only work if the RADIUS server is unreachable. In this scenario, the RADIUS server is functional, so the switch continues to authenticate through it and does not fall back to the local credentials.
* This behavior is by design, as dictated by the configuration.
* Solution:
* If access to the console port using local credentials is a critical requirement, consider adjusting the configuration to prioritize local credentials. For example, use:
aaa authentication login default local radius
This configuration ensures that local credentials are tried first, with RADIUS as a secondary option.
References:
* ICX Switch Command Reference Guide (AAA Configuration Section): RUCKUS Support


NEW QUESTION # 38
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