Exam RCNI Realistic Dumps Verified Questions Free [Aug 04, 2025]
Valid RCNI Dumps for Helping Passing RUCKUS Exam!
RUCKUS RCNI Exam Syllabus Topics:
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NEW QUESTION # 32
A Core, Aggregation, Edge topology network is running Rapid Spanning Tree Protocol (RSTP). Two switches at the edge are legacy and run 802.1D.
To influence the convergence time of the legacy switches at the edge, where are the timers modified?
- A. the route-only port on the upstream gateway
- B. on the two legacy 802.1D switches at the edge
- C. on the Aggregation switches connected to the legacy edge switches
- D. on the root bridge at the core
Answer: C
Explanation:
* RSTP and Legacy 802.1D Compatibility:
* RSTP (802.1w) can interoperate with legacy switches running STP (802.1D). However, the legacy switches use different timers and convergence mechanisms, which can lead to delays.
* Optimizing Timers for Legacy Edge Switches:
* The edge switches running 802.1D rely on BPDU timing set by the upstream aggregation switches.
* To influence the convergence time, the timers such as hello time, max age, and forward delay must be adjusted on the aggregation switches connected to these legacy edge switches. This ensures better compatibility and faster convergence.
* Why Not Other Options?
* A: The route-only port does not participate in STP.
* B: Timers cannot be modified on legacy switches themselves as they strictly follow 802.1D standards.
* D: The root bridge sets global parameters but does not address edge-specific timer optimization.
References:
* RUCKUS RSTP/802.1D Compatibility Guide: RUCKUS Documentation
NEW QUESTION # 33
ICX reserves some VLAN IDs for system functions. How many VLAN IDs are reserved?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 34
The root bridge is connected to another switch over two independent 10Gbe links. Which link will remain in a forwarding state on both sides?
- A. the link with the lowest port number on the non-root switch
- B. the link with the highest port number on the root switch
- C. the link with the highest port number on the non-root switch
- D. the link with the lowest port number on the root switch
Answer: D
NEW QUESTION # 35
At which prompt can the ping command be executed?
- A. ICX7150-C12 Router(config-if-e1000-1/1/1)#
- B. ICX7150-C12 Router(config-if-mgmt-1)#
- C. ICX7150-C12 Router#
- D. ICX7150-C12 Router(config)#
Answer: C
Explanation:
* Understanding CLI Levels:
* The ping command is used to test connectivity to other devices by sending ICMP echo requests.
* It can only be executed from the privileged EXEC mode, which is indicated by the Router# prompt.
* Why Other Prompts Don't Work:
* A. Router(config-if-mgmt-1)#: This is the interface configuration mode for the management port and does not allow execution of diagnostic commands like ping.
* B. Router(config)#: This is the global configuration mode, which is used to configure the switch but does not support diagnostic commands.
* D. Router(config-if-e1000-1/1/1)#: This is the interface configuration mode for Ethernet 1/1/1, which also does not allow execution of ping.
References:
* RUCKUS ICX CLI Guide: RUCKUS Documentation
NEW QUESTION # 36
Which three objects can be assigned a Layer 3 address? (Choose three.)
- A. Loopback
- B. GRE tunnels
- C. VxLAN
- D. Virtual Ethernet
- E. Virtual LAN
- F. Stack Interface
Answer: A,B,F
Explanation:
* Layer 3 Address Assignment:
* Stack Interface (A): A stack interface is a virtual interface representing all members of a stack.
It can be assigned a Layer 3 IP address for management or routing purposes.
* Loopback (E): Loopback interfaces are virtual interfaces always "up" and used for routing, management, or stable endpoint addressing.
* GRE Tunnels (F): GRE tunnels operate at Layer 3 and require IP addresses for both endpoints to encapsulate and route traffic.
* Why Not Other Options?
* B. VxLAN: VxLAN operates at Layer 2 over Layer 3 and does not require direct IP address assignment to itself.
* C. Virtual LAN: VLANs are Layer 2 constructs; while they are associated with SVI (Switch Virtual Interfaces), they are not directly assigned an IP address.
* D. Virtual Ethernet: Virtual Ethernet interfaces are typically Layer 2 and used within virtualized environments, not directly assigned Layer 3 addresses.
References:
* ICX Routing Configuration Guide: RUCKUS Documentation
NEW QUESTION # 37
At which prompt can the ping command be executed?
- A. ICX7150-C12 Router(config-if-e1000-1/1/1)#
- B. ICX7150-C12 Router(config-if-mgmt-1)#
- C. ICX7150-C12 Router#
- D. ICX7150-C12 Router(config)#
Answer: C
NEW QUESTION # 38
Which three factors must be considered when ordering a replacement power supply for an ICX7650? (Choose three.)
- A. hotswap vs non-hotswap
- B. 110 vs 220 volt
- C. airflow direction
- D. active vs passive cooling
- E. PoE vs non-PoE
- F. DC vs AC power
Answer: B,E,F
NEW QUESTION # 39
Which two commands display license information? (Choose two.)
- A. show license
- B. show who
- C. show version
- D. show chassis
- E. show inline power
Answer: A,C
NEW QUESTION # 40
Which command will provide a maximum 15.4W to the connected Power over Ethernet (PoE) device?
- A. ICX(config-if-e1000-1/1/1)#inline power power-by-class 2
- B. ICX(config-if-e1000-1/1/1)#inline power power-by-class 4
- C. ICX(config-if-e1000-1/1/1)#inline power power-by-class 3
- D. ICX(config-if-e1000-1/1/1)#inline power power-by-class 5
Answer: C
NEW QUESTION # 41
Which command can be used to identify Cyclic Redundancy Check (CRC) errors on port Ethernet 1/1/1?
- A. show statistics ethernet 1/1/1
- B. show interfaces brief ethernet 1/1/1
- C. show mac-address ethernet 1/1/1
- D. show port security ethernet 1/1/1
Answer: A
NEW QUESTION # 42
Which ICX model has eight integrated QSFP28 ports?
- A. ICX7550-48F
- B. ICX7850-48F
- C. ICX7650-48F
- D. ICX7750-48F
Answer: C
NEW QUESTION # 43
Which command will transfer a code image between flash modules, from the primary partition to the secondary partition?
- A. copy disk0 flash TNR08095hufi.bin secondary
- B. copy disk0 flash TNR08095hufi.bin primary
- C. copy flash flash primary
- D. copy flash flash secondary
Answer: D
Explanation:
In RUCKUS ICX switches, the copy flash flash command is used to duplicate a firmware image from one flash partition to another. This is useful for maintaining consistent firmware versions across different boot partitions.
Command Syntax:
copy flash flash [primary | secondary]
Parameters:
* primary: Specifies the primary flash partition.
* secondary: Specifies the secondary flash partition.
NEW QUESTION # 44
Which configuration steps will add untagged ethernet ports 1/1/1 and 1/1/2 and tagged ethernet port 1/2/1 to VLAN 10?
- A. vlan 10
untagged ethernet 1/1/1 to 1/1/2
tagged ethernet 1/2/1 - B. untagged ethernet 1/1/1 to 1/1/2
tagged ethernet 1/2/1
vlan 10 - C. untagged ethernet 1/1/1 to 1/1/2 vlan 10
tagged ethernet 1/2/1 vlan 10 - D. vlan 10
no tagged ethernet 1/1/1 to 1/1/2
tagged ethernet 1/2/1
Answer: A
Explanation:
To configure RUCKUS ICX switch ports 1/1/1 and 1/1/2 as untagged members of VLAN 10, and port 1/2/1 as a tagged member of VLAN 10, follow these steps:
* Access the Switch's Command Line Interface (CLI):
* Use SSH or a direct console connection to access the switch's CLI.
* Enter Global Configuration Mode:
* At the prompt, enter:
bash
Copy code
enable
configure terminal
* Create or Select VLAN 10:
* Ensure VLAN 10 exists. If not, create it:
Copy code
vlan 10
* Assign Ports 1/1/1 and 1/1/2 as Untagged in VLAN 10:
* Within VLAN 10 configuration, assign the ports:
css
Copy code
untagged ethernet 1/1/1 to 1/1/2
* Assign Port 1/2/1 as Tagged in VLAN 10:
* Still within VLAN 10 configuration, assign the port:
Copy code
tagged ethernet 1/2/1
* Exit Configuration Mode and Save Changes:
* Exit to the previous mode:
bash
Copy code
exit
* Save the configuration to ensure changes persist after a reboot:
arduino
Copy code
write memory
* VLAN Configuration:
* The command vlan 10 selects VLAN 10 for configuration. If VLAN 10 does not exist, this command creates it.
* Untagged Ports:
* The command untagged ethernet 1/1/1 to 1/1/2 assigns ports 1/1/1 and 1/1/2 as untagged members of VLAN 10. Untagged ports are typically used for end devices that do not tag their own traffic.
* Tagged Ports:
* The command tagged ethernet 1/2/1 assigns port 1/2/1 as a tagged member of VLAN 10. Tagged ports are commonly used for trunk links between switches or other network devices that handle multiple VLANs.
* Command Syntax:
* The sequence of commands in option D correctly follows the RUCKUS ICX switch configuration syntax, ensuring that the ports are appropriately assigned to VLAN 10.
References:
* VLAN configuration on Ruckus ICX switches for Ruckus Wireless WLAN's
* ICX 7150 tag port VLAN1 - RUCKUS Community Forums
NEW QUESTION # 45
In a core/edge network topology, which ports should have Root Guard enabled?
- A. route-only ports facing the WAN
- B. edge ports facing the core
- C. management ports at the core
- D. core ports facing the edge
Answer: D
Explanation:
In a core/edge network topology, Root Guard is a Spanning Tree Protocol (STP) feature that prevents designated ports from becoming root ports. This ensures that the core switch remains the root bridge, maintaining a stable and predictable network topology.
Configuration Steps:
* Identify Core Ports Facing the Edge:
* Determine which ports on the core switch connect to edge switches.
* Enable Root Guard on These Ports:
* Access the core switch's configuration mode.
* For each identified port, apply the Root Guard configuration:
interface ethernet 1/1/1
spanning-tree root-guard
* Replace 1/1/1 with the actual port identifier.
Example Configuration:
arduinoICX(config)# interface ethernet 1/1/1
ICX(config-if-e1000-1/1/1)# spanning-tree root-guard
This configuration ensures that port 1/1/1 on the core switch will not accept superior BPDUs, preventing edge switches from becoming the root bridge.
NEW QUESTION # 46
If a customer needs to implement VRRP-E on their ICX7550 units, which license needs to be applied to enable this feature?
- A. L3-prem
- B. MACSec
- C. PoD
- D. L3-Base
Answer: D
NEW QUESTION # 47
What are two differences between Class of Service (CoS) and Differentiated Services Code Point (DSCP)? (Choose two.)
- A. DSCP defines priority levels and CoS manipulates traffic according to these defined priority levels.
- B. CoS operates at Layer 2 in OSI model, whereas DSCP operates in Layer 3.
- C. DSCP is simpler and can scale easily as the network grows. CoS becomes more complex as network demand for prioritized data increase.
- D. CoS defines priority levels and DSCP manipulates traffic according to these defined priority levels.
- E. DSCP operates at Layer 2 in OSI model, whereas CoS operates in Layer 3.
Answer: B,D
NEW QUESTION # 48
Which two commands can be used to display the IP address of a device attached to a switch port? (Choose two.)
- A. show arp
- B. show mac-address all
- C. show lldp neighbor detail
- D. show interface brief wide
- E. show interface
Answer: A,C
NEW QUESTION # 49
Which command can be used to identify Cyclic Redundancy Check (CRC) errors on port Ethernet 1/1/1?
- A. show statistics ethernet 1/1/1
- B. show interfaces brief ethernet 1/1/1
- C. show mac-address ethernet 1/1/1
- D. show port security ethernet 1/1/1
Answer: A
Explanation:
* Locating CRC Errors:
* The show statistics ethernet [port] command provides detailed port statistics, including packet counts, errors, and specifically Cyclic Redundancy Check (CRC) errors.
* Why Other Commands Don't Work:
* B. show interfaces brief ethernet 1/1/1: This provides a summary of interface status but does not include detailed error information like CRC errors.
* C. show mac-address ethernet 1/1/1: This displays MAC address table entries for the specified port, unrelated to error statistics.
* D. show port security ethernet 1/1/1: This shows port security configurations and violations, not errors like CRC.
References:
* ICX Switch Command Reference: RUCKUS Documentation
NEW QUESTION # 50
What is one advantage of the supportsave command versus the show tech-support command?
- A. Uploads directly to RUCKUS support.
- B. Uses fewer CPU cycles during execution.
- C. Generates automatically after a system crash.
- D. Allows the transfer of collected data to TFTP.
Answer: A
NEW QUESTION # 51
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