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| Section | Objectives |
|---|---|
| Topic 1: Wireless Networking Fundamentals | - RF principles and WLAN basics - Wi-Fi standards overview (802.11 a/b/g/n/ac/ax) |
| Topic 2: RUCKUS Architecture and Solutions | - RUCKUS switching (ICX series) basics - Access point deployment and management - RUCKUS SmartZone controller concepts |
| Topic 3: Troubleshooting and Optimization | - Common connectivity issues and diagnostics - Wireless performance tuning |
| Topic 4: Network Configuration and Deployment | - SSID configuration and security settings - Initial setup and provisioning of APs |
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NEW QUESTION # 44
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
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 # 45
When a high CPU alert about an ICX switch is triggered, which command will provide more detail on the processes taking up CPU cycles?
Answer: C
Explanation:
When a high CPU utilization alert is triggered on a RUCKUS ICX switch, it's essential to identify the processes consuming excessive CPU resources. The show cpu tasks command provides detailed information about active processes and their CPU usage.
Command Usage:
show cpu tasks
Output Example:
Task Name CPU Time (ms) Invocations Avg Time (us)
------------------ -------------- ------------ -------------
TaskA 5000 1000 5000
TaskB 3000 1500 2000
In this output:
* Task Name lists the names of active processes.
* CPU Time (ms) indicates the total CPU time consumed by each process in milliseconds.
* Invocations shows how many times each process has been called.
* Avg Time (us) represents the average time per invocation in microseconds.
By analyzing this data, administrators can pinpoint processes that are utilizing disproportionate CPU resources, facilitating targeted troubleshooting and optimization.
NEW QUESTION # 46
What is the maximum number of software images that can be stored simultaneously on an ICX switch?
Answer: A
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
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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 # 47
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?
Answer: C
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 # 48
Which function is performed by ARP protocol?
Answer: B
Explanation:
The Address Resolution Protocol (ARP) is a fundamental protocol used in IP networking to map a device's IP address to its corresponding Media Access Control (MAC) address. This mapping is essential for enabling communication within a local network segment.
How ARP Works:
* ARP Request:
* When a device (Host A) needs to communicate with another device (Host B) on the same local network, it checks its ARP cache to see if it already has Host B's MAC address corresponding to its IP address.
* If the MAC address is not in the cache, Host A broadcasts an ARP request packet to all devices on the local network. This packet includes Host B's IP address and requests the MAC address associated with that IP.
* ARP Reply:
* Upon receiving the ARP request, the device with the matching IP address (Host B) responds with an ARP reply. This reply is sent directly to Host A and contains Host B's MAC address.
* Updating ARP Cache:
* Host A receives the ARP reply and updates its ARP cache with the new IP-to-MAC address mapping. This cached information allows for efficient communication without the need for repeated ARP requests.
Key Functions of ARP:
* IP to MAC Address Resolution:
* ARP's primary function is to resolve IP addresses to MAC addresses, enabling devices to locate each other on the same local network segment.
* Facilitating Data Link Layer Communication:
* By providing the necessary MAC address, ARP allows data packets to be correctly addressed and transmitted over the network's data link layer.
Clarifications on Other Options:
* Option B: Discover directly connected neighbors
* This function is typically performed by protocols like the Neighbor Discovery Protocol (NDP) in IPv6 or by network discovery tools, not by ARP.
* Option C: Build and maintain switch MAC tables
* Switches build and maintain MAC address tables by observing the source MAC addresses of incoming frames, a process independent of ARP.
* Option D: Resolve host name
* Resolving hostnames to IP addresses is the function of the Domain Name System (DNS), not ARP.
References:
* Understanding ARP (Address Resolution Protocol)
* How ARP Works
NEW QUESTION # 49
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