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NEW QUESTION # 10
Which command will create VE 2 on an ICX running FastIron 08.0.95?
Answer: A
Explanation:
In RUCKUS ICX switches, a Virtual Ethernet (VE) interface, also known as a routed interface, is used to route traffic between VLANs. To create a VE interface and associate it with a VLAN, follow these steps:
* Access VLAN Configuration Mode: Enter global configuration mode and then VLAN configuration mode for the desired VLAN. For VLAN 2, the commands are:
* Create and Associate VE Interface: Within VLAN configuration mode, create the VE interface and associate it with the VLAN using the router-interface command:
router-interface ve 2
This command creates VE interface 2 and links it to VLAN 2.
* Configure the VE Interface: Exit VLAN configuration mode and enter interface configuration mode for the newly created VE interface to assign an IP address:
interface ve 2
ip address <IP_address> <subnet_mask>
Replace <IP_address> and <subnet_mask> with the desired IP address and subnet mask for the VE interface.
By following these steps, you create a VE interface that enables routing for the associated VLAN. This configuration is essential for inter-VLAN routing,
NEW QUESTION # 11
Which three conditions allow an ARP request or response to pass a Dynamic ARP Inspection (DAI) check?
(Choose three.)
Answer: C,D,E
Explanation:
Dynamic ARP Inspection (DAI) is a security feature that intercepts and validates Address Resolution Protocol (ARP) packets in a network. It ensures that only legitimate ARP requests and responses are relayed, preventing ARP spoofing and man-in-the-middle attacks.
Conditions Allowing ARP Packets to Pass DAI Checks:
* IP/MAC Pair in the DHCP Binding Database:
* When DHCP snooping is enabled, the switch maintains a binding table of IP-to-MAC address mappings assigned by the DHCP server.
* DAI uses this database to verify that ARP packets have legitimate IP/MAC address pairs.
* If the ARP packet's IP/MAC pair matches an entry in the DHCP binding database, it passes the DAI check.
* Static ARP Entry with Inspection Flag Set:
* Administrators can configure static ARP entries for known devices, marking them as trusted for DAI purposes.
* These entries include the IP/MAC pair and are flagged to bypass DAI checks.
* An ARP packet matching a static entry with the inspection flag set will pass the DAI check.
* Request Originated on a Trusted Port:
* Ports can be designated as trusted, typically those connected to other switches or network devices.
* DAI does not inspect ARP packets arriving on trusted ports, assuming they are from legitimate sources.
* Therefore, ARP requests or responses from a trusted port pass the DAI check.
References:
* For more information on configuring DAI and related security features, refer to the RUCKUS FastIron Layer 3 Routing Configuration Guide: Dynamic ARP Inspection overview Implementing DAI with these conditions helps protect the network from ARP-based attacks by ensuring that only validated ARP traffic is permitted.
NEW QUESTION # 12
Which two Power over Ethernet (PoE) features on the ICX will be enabled by the inline power poe-ha command? (Choose two.)
Answer: A,E
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 # 13
Which command can be used to identify Cyclic Redundancy Check (CRC) errors on port 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 # 14
What are two features of Open Shortest Path First (OSPF)? (Choose two.)
Answer: B,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 # 15
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