[Full-Version] 2025 New Preparation Guide of RUCKUS RCNI Exam
RCNI Practice Exam - 56 Unique Questions
RUCKUS RCNI Exam Syllabus Topics:
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NEW QUESTION # 25
Which command assigns an interface to an area?
- A. ip ospf area 0
- B. area 0
- C. ip ospf cost 100
- D. router ospf
Answer: A
Explanation:
In RUCKUS ICX switches, assigning an interface to an OSPF (Open Shortest Path First) area involves configuring the interface with the appropriate OSPF area command. The correct command to assign an interface to a specific OSPF area is:
ip ospf area <area-id>
For example, to assign an interface to area 0, you would enter interface configuration mode for the desired interface and execute:
ip ospf area 0
This command associates the interface with OSPF area 0, enabling OSPF routing on that interface within the specified area.
It's important to note that OSPF areas are logical groupings of networks and routers within an OSPF domain.
Assigning interfaces to the correct OSPF areas is essential for efficient routing and network segmentation.
For comprehensive guidance on OSPF configuration, including assigning interfaces to areas, refer to the RUCKUS FastIron Configuration Guide.
NEW QUESTION # 26
Which command enables Open Shortest Path First (OSPF) globally?
- A. ip ospf area 0
- B. area 0
- C. router ospf
- D. ip ospf cost 100
Answer: C
Explanation:
To enable Open Shortest Path First (OSPF) globally on a RUCKUS ICX switch, the router ospf command is used. This command initiates OSPF routing processes, allowing the switch to participate in OSPF-based dynamic routing.
Steps to Enable OSPF Globally:
* Access Global Configuration Mode:
* Enter privileged EXEC mode and then global configuration mode:
enable
configure terminal
* Enable OSPF Routing:
* Activate the OSPF routing process:
router ospf
* Assign OSPF Parameters:
* Set the router ID (optional but recommended):
router-id <A.B.C.D>
* Specify OSPF areas and associate interfaces:
network <network-address> <wildcard-mask> area <area-id>
* Configure OSPF on Interfaces:
* Enter interface configuration mode for each interface participating in OSPF:
interface <interface-type> <interface-number>
ip ospf area <area-id>
* Save Configuration:
* Ensure the configuration persists after a reboot:
write memory
Example Configuration:
To configure OSPF with a router ID of 1.1.1.1 and include the network 192.168.1.0/24 in area 0:
configure terminal
router ospf
router-id 1.1.1.1
network 192.168.1.0 0.0.0.255 area 0
exit
interface ethernet 1/1/1
ip ospf area 0
exit
write memory
Considerations:
* Licensing: Ensure the switch has the appropriate Layer 3 license to support OSPF.
* Compatibility: Verify that the FastIron software version supports OSPF.
* Network Planning: Properly design OSPF areas and hierarchies to optimize routing efficiency.
References:
* Ruckus FastIron Layer 3 Routing Configuration Guide, 08.0.91
* Ruckus FastIron Command Reference Guide, 08.0.70
NEW QUESTION # 27
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?
- A. The AAA web-server configuration is missing the radius keyword.
- B. Based on the AAA login command, local should be in front of radius for correct backup operation.
- C. Local username/password is only used for SSH and web access.
- D. Based on the AAA login command, local password will only be used if the RADIUS server is unavailable.
Answer: D
NEW QUESTION # 28
Which command enables global IPv6 capabilities?
- A. ipv6 nd proxy
- B. ipv6 unicast-routing
- C. ipv6 dhcp6-server enable
- D. ipv6 multicast
Answer: B
NEW QUESTION # 29
Which two Power over Ethernet (PoE) features on the ICX will be enabled by the inline power poe-ha command? (Choose two.)
- A. power limit
- B. Perpetual PoE
- C. PoE Overdrive
- D. Fast Boot
- E. power priority
Answer: B,D
NEW QUESTION # 30
At which prompt can the ping command be executed?
- A. ICX7150-C12 Router#
- B. ICX7150-C12 Router(config-if-e1000-1/1/1)#
- C. ICX7150-C12 Router(config)#
- D. ICX7150-C12 Router(config-if-mgmt-1)#
Answer: A
NEW QUESTION # 31
Which two ICX switch models are recommended for collapsed aggregation and core network designs? (Choose two.)
- A. ICX7750
- B. ICX7550
- C. ICX7850
- D. ICX7450
- E. ICX7250
Answer: A,C
NEW QUESTION # 32
What are two features of Open Shortest Path First (OSPF)? (Choose two.)
- A. utilizes distance vector
- B. automatic redistribution of routes
- C. uses exterior gateway protocols
- D. updates routes dynamically
- E. calculates link cost
Answer: D,E
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 # 33
Which command assigns an interface to an area?
- A. ip ospf area 0
- B. area 0
- C. ip ospf cost 100
- D. router ospf
Answer: A
NEW QUESTION # 34
Which switch cannot exceed a maximum of 30W per port?
- A. ICX7150-48ZP
- B. ICX7550
- C. ICX7150-C12P
- D. ICX7650
Answer: A
NEW QUESTION # 35
Which two statements are true when Dynamic Host Configuration Protocol (DHCP) Snooping is enabled?
(Choose two.)
- A. DHCP snooping must be enabled globally.
- B. DHCP server interfaces should be trusted.
- C. All interfaces are trusted by default.
- D. DHCP snooping must be enabled per VLAN.
- E. DHCP snooping must be enabled per interface.
Answer: A,B
Explanation:
Dynamic Host Configuration Protocol (DHCP) Snooping is a security feature that acts as a firewall between untrusted hosts and trusted DHCP servers. It helps prevent malicious or malformed DHCP traffic by monitoring DHCP messages and filtering untrusted sources.
When configuring DHCP Snooping on RUCKUS ICX switches, consider the following:
* Global Enablement: DHCP Snooping must be enabled globally on the switch to activate the feature across the device. This is done using the following command in global configuration mode:
ip dhcp snooping
* Trusted Interfaces: Interfaces connected to legitimate DHCP servers should be configured as trusted to allow DHCP server messages to pass through. This is configured per interface:
interface ethernet 1/1/1
ip dhcp snooping trust
Replace 1/1/1 with the appropriate interface identifier.
* VLAN Configuration: DHCP Snooping must be enabled on specific VLANs where DHCP services are required. This ensures that DHCP messages are monitored within those VLANs:
NEW QUESTION # 36
When running FastIron SPS08095e code, which step is required to define static routes?
- A. Change the ICX image version to SPR08095e.bin.
- B. Install the L3-prem license.
- C. Upgrade to version SPS08095h or later.
- D. Run the UFI code image for GZR08095h.
Answer: A
NEW QUESTION # 37
What is the maximum distance between ICX devices in a stack?
- A. 9 meters
- B. 1 kilometer
- C. 40 kilometers
- D. 3 meters
Answer: C
NEW QUESTION # 38
Which command must be configured at the interface level to honor Differentiated Services Code Point (DSCP)-based Class of Service (CoS) on a ICX7750?
- A. qos-tos map dscp-priority
- B. trust dscp
- C. qos profile
- D. ip dscp-remark 1
Answer: B
NEW QUESTION # 39
A Wi-Fi access point is configured for management traffic on the default VLAN and a guest SSID on VLAN
10. The access point is connected to port 1/1/10.
What is the correct configuration?
- A. vlan 1
no untagged ethernet 1/1/10
!
vlan 10
tagged ethernet 1/1/10 - B. vlan 10
no untagged ethernet 1/1/10 - C. vlan 10
tagged ethernet 1/1/10 - D. vlan 1
no tagged ethernet 1/1/10
!
vlan 10
untagged ethernet 1/1/10
Answer: A
NEW QUESTION # 40
Which two Power over Ethernet (PoE) features on the ICX will be enabled by the inline power poe-ha command? (Choose two.)
- A. power limit
- B. Perpetual PoE
- C. PoE Overdrive
- D. Fast Boot
- E. power priority
Answer: B,D
Explanation:
The inline power poe-ha command on RUCKUS ICX switches enables two key Power over Ethernet (PoE) features:
* Fast Boot PoE: This feature ensures that PoE power is delivered to connected devices immediately upon switch startup, without waiting for the entire system to boot up. This is crucial for devices that need to be operational as soon as possible, such as IP phones or security cameras. To enable Fast Boot PoE, enter interface configuration mode and execute the command:
inline power poe-ha
This command ensures that PoE is delivered promptly during the boot process.
* Perpetual PoE: This feature maintains PoE power to connected devices even when the switch undergoes a soft reboot or firmware upgrade. It ensures uninterrupted power delivery, preventing devices from losing power during such events. To enable Perpetual PoE, use the same command in interface configuration mode:
By configuring this command, the switch provides continuous PoE power during reboots.
For more detailed information on these features and their configuration, refer to the RUCKUS Community Forum post titled "Things to consider about PoE at a glance, when deploying." Ruckus Wireless Community
NEW QUESTION # 41
Which statement is true about Secure Shell (SSH) functionality in FastIron 08.0.95?
- A. Default login timeout is 30 seconds.
- B. Outbound SSH sessions are not supported.
- C. Server function is disabled by default.
- D. Default SSH authentication type is RSA with 2048-bit modulus.
Answer: C
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 # 42
What is the highest Power over Ethernet (PoE) power class supported by 802.3bt?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 43
Which command can be used to identify Cyclic Redundancy Check (CRC) errors on port Ethernet 1/1/1?
- A. show mac-address ethernet 1/1/1
- B. show port security ethernet 1/1/1
- C. show statistics ethernet 1/1/1
- D. show interfaces brief ethernet 1/1/1
Answer: C
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 # 44
When a high CPU alert about an ICX switch is triggered, which command will provide more detail on the processes taking up CPU cycles?
- A. show process
- B. show cpu tasks
- C. show cpu
- D. show cpu histogram
Answer: C
NEW QUESTION # 45
Which two statements are true when Dynamic Host Configuration Protocol (DHCP) Snooping is enabled? (Choose two.)
- A. DHCP server interfaces should be trusted.
- B. DHCP snooping must be enabled per VLAN.
- C. All interfaces are trusted by default.
- D. DHCP snooping must be enabled globally.
- E. DHCP snooping must be enabled per interface.
Answer: A,B
NEW QUESTION # 46
Which switch model provides the most 100Gb ports?
- A. ICX7750-32Q
- B. ICX7850-48F
- C. ICX7850-32Q
- D. ICX7850-48FS
Answer: C
NEW QUESTION # 47
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