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RUCKUS RCNI Exam Syllabus Topics:
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NEW QUESTION # 27
What is the highest Power over Ethernet (PoE) power class supported by 802.3bt?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 28
Which function is performed by ARP protocol?
- A. resolve host name
- B. resolve IP address to MAC address
- C. discover directly connected neighbors
- D. build and maintain switch MAC tables
Answer: D
NEW QUESTION # 29
In the following output, what is the bridge priority of the root in hex?
- A. 0
- B. 9c49
- C. 1
- D. 2
Answer: C
NEW QUESTION # 30
What is the maximum distance between ICX devices in a stack?
- A. 3 meters
- B. 1 kilometer
- C. 9 meters
- D. 40 kilometers
Answer: D
Explanation:
RUCKUS ICX switches support stacking over both copper and fiber connections, allowing for flexible deployment across various distances:
* Copper Stacking Cables:
* Maximum Distance:
* Up to 5 meters using active direct-attach copper (DAC) cables.
* Use Case:
* Suitable for stacking switches within the same rack or in close proximity.
* Fiber-Optic Stacking Cables:
* Maximum Distance:
* Up to 40 kilometers using appropriate optical transceivers and single-mode fiber.
* Use Case:
* Ideal for stacking switches located in different buildings or across a campus environment.
References:
* For detailed information on stacking distances and supported optics, refer to the FastIron stacking distances and optics guide: FastIron stacking distances and optics by device By utilizing fiber-optic connections with appropriate transceivers, ICX switches can be stacked over substantial distances, providing flexibility in network design and deployment.
NEW QUESTION # 31
What is the maximum number of software images that can be stored simultaneously on an ICX switch?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 32
Which command will transfer a code image between flash modules, from the primary partition to the secondary partition?
- A. copy flash flash secondary
- B. copy disk0 flash TNR08095hufi.bin primary
- C. copy disk0 flash TNR08095hufi.bin secondary
- D. copy flash flash primary
Answer: C
NEW QUESTION # 33
For multicast clients to stop receiving traffic using a leave request, which protocol must run on the local subnet?
- A. IGMPv1
- B. IGMP Snooping
- C. IGMPv2
- D. PIM Dense
Answer: A
NEW QUESTION # 34
Which command could be used to find the system name of an attached device?
- A. show chassis
- B. show lldp neighbors
- C. show inline power
- D. ping
Answer: A
NEW QUESTION # 35
Which command assigns an interface to an area?
- A. router ospf
- B. ip ospf area 0
- C. ip ospf cost 100
- D. area 0
Answer: B
NEW QUESTION # 36
At which prompt can the ping command be executed?
- A. ICX7150-C12 Router(config-if-e1000-1/1/1)#
- B. ICX7150-C12 Router#
- C. ICX7150-C12 Router(config)#
- D. ICX7150-C12 Router(config-if-mgmt-1)#
Answer: B
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 # 37
Which command enables global IPv6 capabilities?
- A. ipv6 nd proxy
- B. ipv6 multicast
- C. ipv6 unicast-routing
- D. ipv6 dhcp6-server enable
Answer: C
Explanation:
To enable IPv6 functionality on a RUCKUS ICX switch, you must activate IPv6 unicast routing globally.
This allows the switch to forward IPv6 packets and participate in IPv6 routing.
Steps to Enable IPv6 Unicast Routing:
* Access the Switch's Command-Line Interface (CLI):
* Connect to the switch via console, SSH, or Telnet.
* Enter privileged EXEC mode:
plaintext
Copy code
enable
* Enter Global Configuration Mode:
* Switch to global configuration mode:
plaintext
Copy code
configure terminal
* Enable IPv6 Unicast Routing:
* Activate IPv6 unicast routing:
ipv6 unicast-routing
* Configure IPv6 Addresses on Interfaces (Optional):
* Assign IPv6 addresses to the desired interfaces:
interface ethernet 1/1/1
ipv6 address 2001:db8::1/64
* Verify the Configuration:
* Exit to privileged EXEC mode and display the running configuration to confirm:
end
show running-config
References:
* For detailed information on configuring IPv6 addresses, refer to the RUCKUS FastIron Layer 3 Routing Configuration Guide: Configuring a global or site-local IPv6 address with a manually configured interface ID By following these steps, you enable the switch to handle IPv6 traffic, facilitating IPv6 communication within your network.
NEW QUESTION # 38
Which device will become the root in the Spanning Tree election process?
- A. the device with the highest IP address
- B. the device with root guard enabled
- C. the device with the lowest bridge ID
- D. the device with the highest bridge priority value
Answer: D
NEW QUESTION # 39
Which three conditions allow an ARP request or response to pass a Dynamic ARP Inspection (DAI) check? (Choose three.)
- A. The IP/MAC pair appear in the DHCP binding database.
- B. Client authenticated using MAC authentication.
- C. Request originated on a trusted port.
- D. A static ARP entry exists for the IP/MAC pair with the inspection flag set.
- E. Client authenticated using RADIUS on an 802.1X enabled port.
- F. There is a static reservation for the IP/MAC pair in the DHCP pool.
Answer: A,B,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 5
- 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 4
Answer: C
Explanation:
Power over Ethernet (PoE) allows ICX switches to deliver electrical power to connected devices over standard Ethernet cables. The amount of power provided is determined by the PoE class assigned to the port.
To supply a maximum of 15.4W to a connected device, the port should be configured to PoE Class 3.
PoE Power Classes:
* Class 0: 0.44W to 12.95W
* Class 1: 0.44W to 3.84W
* Class 2: 3.84W to 6.49W
* Class 3: 6.49W to 15.4W
* Class 4: 15.4W to 30W (PoE+)
Configuration Steps:
* Access the Switch's CLI:
* Connect to the switch via console or SSH to access the Command Line Interface (CLI).
* Enter Global Configuration Mode:
enable
configure terminal
* Navigate to the Specific Interface:
* Replace 1/1/1 with the appropriate interface identifier.
interface ethernet 1/1/1
* Set the PoE Power Class:
* Configure the port to provide power corresponding to Class 3.
inline power power-by-class 3
* Exit Configuration Mode and Save Changes:
end
write memory
Verification:
* Check PoE Status:
* To verify the PoE status and power allocation on the configured port, use:
show inline power
* This command displays the current PoE status, power consumption, and class information for each port.
Considerations:
* Device Compatibility:
* Ensure that the connected device is compatible with PoE Class 3 and does not require more than
15.4W.
* Power Budget:
* Monitor the switch's total PoE power budget to prevent over-subscription when multiple devices are connected.
References:
* How to enable Dynamic PoE power on the ICX switches
* FastIron 08.0.90 Command Reference Guide
NEW QUESTION # 41
What is the maximum Wattage for a PoE+ interface with PoE overdrive enabled?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Power over Ethernet (PoE) technology allows network switches to deliver electrical power to connected devices over standard Ethernet cables. The IEEE 802.3at standard, commonly known as PoE+, provides up to
30 watts of power per port. RUCKUS enhances this capability with a proprietary feature called PoE+ Overdrive, which increases the maximum power output per port.
With PoE+ Overdrive enabled, a PoE+ interface on RUCKUS ICX switches can deliver up to 45 watts of power over two pairs of wires. This enhancement is particularly beneficial for devices that require more power than the standard PoE+ provision, such as advanced wireless access points or video conferencing systems.
It's important to note that the actual power delivered to the powered device (PD) is slightly less due to cable losses. For instance, while the Power Sourcing Equipment (PSE) may supply 45 watts, the PD might receive approximately 35.5 watts. This ensures that devices receive sufficient power even after accounting for transmission losses.
The availability of PoE+ Overdrive and the maximum power output per port can vary depending on the specific ICX switch model. For example, the RUCKUS ICX 7650 supports PoE+ Overdrive with a maximum output of 45 watts per port. Similarly, the ICX 7150-48ZP model offers PoE+ Overdrive capabilities.
For detailed information on PoE+ Overdrive capabilities and supported models, refer to the "Ruckus Power over Ethernet (PoE) Interoperability" document.
NEW QUESTION # 42
Which command enables global IPv6 capabilities?
- A. ipv6 nd proxy
- B. ipv6 multicast
- C. ipv6 unicast-routing
- D. ipv6 dhcp6-server enable
Answer: C
NEW QUESTION # 43
What is the maximum number of software images that can be stored simultaneously on an ICX switch?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
RUCKUS ICX switches are designed to store multiple software images simultaneously, allowing network administrators to manage firmware versions effectively. The maximum number of software images that can be stored on an ICX switch is three.
Image Storage Structure:
* Primary Image:
* The main firmware image that the switch loads during the boot process.
* Secondary Image:
* An alternative firmware image that can be used for redundancy or testing purposes.
* Tertiary (or Additional) Image:
* A third firmware image slot available for further flexibility in image management.
Managing Software Images:
* Viewing Stored Images:
* To display the software images stored on the switch, use the following command:
sql
Copy code
show flash
* This command lists all firmware images present in the switch's flash memory.
* Setting Boot Preferences:
* To specify which image the switch should load on the next reboot, use:
sql
Copy code
boot system flash primary
* Replace primary with secondary or tertiary as needed.
* Upgrading Firmware:
* When upgrading the switch firmware, you can upload the new image to any of the available slots (primary, secondary, or tertiary) without overwriting existing images, providing a fallback option if needed.
Best Practices:
* Maintain Multiple Images:
* Keeping multiple firmware images allows for quick recovery in case of issues with the current running image.
* Regular Updates:
* Ensure that the stored images are up-to-date to maintain security and feature enhancements.
* Consistent Configuration:
* After uploading a new image, verify that the switch configuration is compatible with the firmware version to prevent potential issues.
References:
* RUCKUS FastIron 08.0.90 Command Reference Guide
NEW QUESTION # 44
Which discovery protocol is enabled by default on all RUCKUS ICX platforms?
- A. JDP
- B. LLDP
- C. FDP
- D. CDP
Answer: B
NEW QUESTION # 45
Which ICX model can run silently in fanless mode?
- A. ICX7150-48P
- B. ICX7550-24P
- C. ICX7150-48ZP
- D. ICX7150-48PF
Answer: A
NEW QUESTION # 46
Why is the following command failing?
RKUS-01(config)#vlan 1
RKUS-01(config-vlan-1)#tagged ethernet 1/2/1
Invalid input -> tagged ethernet 1/2/1
Type ? for a list
- A. The default VLAN cannot be tagged to any interfaces.
- B. VLAN 1 must be configured as a protocol-based VLAN before tagged ports can be added.
- C. A Virtual Ethernet interface must be defined before a tagged port can be added.
- D. This model ICX does not have an interface Ethernet 1/2/1.
Answer: A
Explanation:
In RUCKUS ICX switches, VLAN 1 is the default VLAN and is typically used for management purposes. By default, all ports are members of VLAN 1 as untagged. Attempting to configure VLAN 1 as tagged on a port can result in an error, as the system restricts tagging the default VLAN.
Understanding the Error:
RKUS-01(config)# vlan 1
RKUS-01(config-vlan-1)# tagged ethernet 1/2/1
Invalid input -> tagged ethernet 1/2/1
Type ? for a list
This error occurs because the switch does not allow tagging of the default VLAN (VLAN 1) on any interface.
Resolution:
* Option 1: Use a Different VLAN for Tagging
* Create a new VLAN (e.g., VLAN 2) and configure it as tagged on the desired port.
RKUS-01(config)# vlan 2
RKUS-01(config-vlan-2)# tagged ethernet 1/2/1
* Option 2: Change the Default VLAN ID
* If you must use VLAN 1 as tagged, you can change the default VLAN ID to another VLAN (e.g., VLAN 2), allowing VLAN 1 to be configured as tagged.
RKUS-01(config)# default-vlan-id 2
RKUS-01(config)# vlan 1
RKUS-01(config-vlan-1)# tagged ethernet 1/2/1
NEW QUESTION # 47
Based on the following configuration, which statement is true?
ICX-Router (config)# ipv6 unicast-routing
ICX-Router (config)# interface ethernet 1/3/1
ICX-Router (config-if-e1000-1/3/1)# ip address 10.172.10.1/24
ICX-Router (config-if-e1000-1/3/1)# ipv6 address 2001:db8:12d:1300::/64
- A. ICX devices only support dual-stacked IPv4 and IPv6 configuration on a VE interface.
- B. ICX devices do not support IPv4 and IPv6 addresses configured on the same interface.
- C. The ipv6 enable command must also be configured at the interface level.
- D. The interface will transmit and receive both IPv4 and IPv6 traffic simultaneously.
Answer: D
Explanation:
In RUCKUS ICX devices, interfaces can be configured to support both IPv4 and IPv6 addresses concurrently, a setup known as dual-stack configuration. This allows the interface to handle both IPv4 and IPv6 traffic simultaneously.
Given the configuration:
ICX-Router (config)# ipv6 unicast-routing
ICX-Router (config)# interface ethernet 1/3/1
ICX-Router (config-if-e1000-1/3/1)# ip address 10.172.10.1/24
ICX-Router (config-if-e1000-1/3/1)# ipv6 address 2001:db8:12d:1300::/64
* The command ipv6 unicast-routing enables IPv6 routing on the device globally.
* Within the interface configuration mode for Ethernet 1/3/1, the ip address command assigns an IPv4 address, and the ipv6 address command assigns an IPv6 address to the same interface.
This configuration allows the interface to transmit and receive both IPv4 and IPv6 traffic simultaneously, facilitating communication in a dual-stack network environment.
Therefore, the correct statement is:
B: The interface will transmit and receive both IPv4 and IPv6 traffic simultaneously.
NEW QUESTION # 48
Which two commands display Power over Ethernet (PoE) power budget? (Choose two.)
- A. show chassis
- B. show inline power detail
- C. show inline power
- D. show configuration
- E. show version
Answer: B,C
Explanation:
To monitor and manage the PoE power budget on RUCKUS ICX switches, the following commands are utilized:
* show inline power Command:
* Purpose: Displays a summary of the PoE status, including total power capacity, power consumption, and available power.
* Usage:
* Access the switch's command-line interface (CLI).
* Enter the command:
plaintext
Copy code
show inline power
* Output Details:
* Power Capacity: Total PoE power available on the switch.
* Power Allocations: Power consumption per port, indicating which ports are supplying power to connected devices.
* Example Output:
plaintext
Copy code
Power Capacity: Total is 124000 mWatts. Current Free is 64000 mWatts.
Power Allocations: Requests Honored 8 times
Port Admin Oper ---Power (mWatts)--- PD Type PD Class Pri Fault/
State State Consumed Allocated Error
-----------------------------------------------------------------------------
1/1/1 On On 4733 30000 2P-IEEE Class 4 3 n/a
1/1/2 On Off 6015 30000 2P-IEEE Class 4 3 n/a
(additional ports)
NEW QUESTION # 49
Which command could be used to find the system name of an attached device?
- A. show chassis
- B. show inline power
- C. ping
- D. show lldp neighbors
Answer: D
Explanation:
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral protocol used by network devices to advertise their identity and capabilities to neighbors on a local network. In RUCKUS ICX switches, the show lldp neighbors command displays information about directly connected devices, including their system names.
Command Usage:Copy code
show lldp neighbors
Output Example:
Local Port Neighbor MAC System Name
----------- ------------- -----------
1/1/1 00:11:22:33:44:55 Device_A
1/1/2 66:77:88:99:AA:BB Device_B
In this example, the System Name column lists the names of devices connected to the local switch ports. This information is particularly useful for network administrators to identify and manage connected devices efficiently.
For more detailed information, including IP addresses and port descriptions, the following command can be used:
show lldp neighbors detail
Output Example:Copy code
Local Port: 1/1/1
Neighbor MAC: 00:11:22:33:44:55
System Name: Device_A
Port Description: GigabitEthernet1/0/1
System Description: Vendor Model XYZ
Management Address: 192.168.1.10
This detailed output provides comprehensive information about each connected device, aiding in network management and troubleshooting.
It's important to note that LLDP must be enabled on the switch and the connected devices for this information to be available. By default, LLDP is enabled on RUCKUS ICX switches.
NEW QUESTION # 50
What are two features of Open Shortest Path First (OSPF)? (Choose two.)
- A. utilizes distance vector
- B. calculates link cost
- C. updates routes dynamically
- D. automatic redistribution of routes
- E. uses exterior gateway protocols
Answer: B,C
Explanation:
Open Shortest Path First (OSPF) is a widely used interior gateway protocol (IGP) designed for routing within an autonomous system (AS). It is a link-state routing protocol that offers several key features:
Key Features of OSPF:
* Calculates Link Cost:
* OSPF assigns a cost to each link, representing the overhead required to send packets across that link. The cost is typically based on the link's bandwidth; higher bandwidth links have lower costs.
* OSPF uses these costs to calculate the shortest path to each network destination, ensuring efficient routing.
* Updates Routes Dynamically:
* OSPF routers exchange link-state advertisements (LSAs) to share information about network topology changes.
* When a change occurs, such as a link failure, OSPF quickly propagates this information, allowing routers to update their routing tables dynamically and converge on a new optimal topology.
Clarifications on Other Options:
* Option A: Utilizes distance vector
* OSPF is a link-state protocol, not a distance vector protocol. Distance vector protocols, like RIP, use different mechanisms for route calculation.
* Option C: Automatic redistribution of routes
* OSPF does not automatically redistribute routes from other routing protocols. Route redistribution between different protocols requires manual configuration.
* Option E: Uses exterior gateway protocols
* OSPF is an interior gateway protocol (IGP) used within a single autonomous system, not an exterior gateway protocol (EGP) like BGP, which is used between autonomous systems.
References:
* OSPF Design Guide
* Understanding OSPF
NEW QUESTION # 51
What is the maximum Wattage fur a PoE+ interface with PoE overdrive enabled?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 52
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