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| Section | Objectives |
|---|---|
| Topic 1: Operations and Troubleshooting | - Monitoring and logging concepts - Basic network troubleshooting tools |
| Topic 2: Wireless LAN Fundamentals | - SSID and WLAN configuration basics - Wi-Fi standards and concepts - Access point operation and roaming concepts |
| Topic 3: Aruba Campus Access Architecture | - Campus network design principles - Aruba OS-CX switching fundamentals - Aruba access layer components |
| Topic 4: Networking Fundamentals | - OSI model and TCP/IP basics - Basic switching and routing concepts - IP addressing and subnetting |
| Topic 5: Security and Access Control | - Authentication methods (802.1X) - Network segmentation (VLANs, policies) - Role-based access control |
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NEW QUESTION # 80
Refer to Exhibit.
Which server will receive the smallest quantity of data?
Answer: A
Explanation:
Based on the exhibit showing the logging server configurations, server 172.17.17.43 will receive the smallest quantity of data because it is set to the "Warning" event log level. This means it will only log events that are categorized as warnings or higher severity, which are typically less frequent than lower severity levels such as "Information," "Debug," or "Emergency."
NEW QUESTION # 81
Match the feature to the Aruba OS version (Matches may be used more than once.)
Answer:
Explanation:
Explanation:
Features: 1) Clustered Instant Access Points Aruba OS version: a) Aruba OS 8 Features: 2) Dynamic Radius Proxy Aruba OS version: a) Aruba OS 8 Features: 3) Scales to more than 10,000 devices Aruba OS version: b) Aruba OS 10 Features: 4) Unifies wired and wireless management Aruba OS version: a) Aruba OS 8 Features: 5) Wireless controllers Aruba OS version: a) Aruba OS 8 ArubaOS is the operating system for all Aruba Mobility Controllers (MCs) and controller-managed wireless access points (APs). ArubaOS 8 delivers unified wired and wireless access, seamless roaming, enterprise grade security, and a highly available network with the required reliability to support high density environments1.
Some of the features of ArubaOS 8 are:
- Clustered Instant Access Points: This feature allows multiple Instant APs to form a cluster and share configuration and state information. This enables seamless roaming, load balancing, and fast failover for clients2.
- Dynamic Radius Proxy: This feature allows an MC to act as a proxy for RADIUS authentication requests from clients or APs. This simplifies the configuration and management of RADIUS servers and reduces the network traffic between MCs and RADIUS servers3.
- Wireless controllers: Aruba wireless controllers are devices that centrally manage and control the wireless network. They provide functions such as AP provisioning, configuration, security, policy enforcement, and network optimization.
ArubaOS 10 is the next-generation operating system that works with Aruba Central, a cloud-based network management platform. ArubaOS 10 delivers greater scalability, security, and AI-powered optimization across large campuses, branches, and remote work environments. Some of the features of ArubaOS 10 are:
- Scales to more than 10,000 devices: ArubaOS 10 can support up to 10,000 devices per cluster, which is ten times more than ArubaOS 8. This enables customers to scale their networks without compromising performance or reliability.
- Unifies wired and wireless management: ArubaOS 10 provides a single platform for managing both wired and wireless devices across the network. Customers can use Aruba Central to configure, monitor, troubleshoot, and update their devices from anywhere.
Both ArubaOS 8 and ArubaOS 10 share some common features, such as:
- Unifies wired and wireless management: Both operating systems provide unified wired and wireless access for customers who use Aruba switches and APs. Customers can use a single interface to manage their entire network infrastructure1.
References:
1 https://www.arubanetworks.com/resource/arubaos-8-fundamental-guide/
2 https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/iap- maintenance/clus
3 https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1- overvie
https://www.arubanetworks.com/products/networking/controllers/
https://www.arubanetworks.com/products/network-management-operations/arubaos/
https://blogs.arubanetworks.com/solutions/making-the-switch/
https://www.arubanetworks.com/products/network-management-operations/aruba-central/
NEW QUESTION # 82
You need to drop excessive broadcast traffic on ingress to an AOS-CX switch. What is the best technology to use for this task?
Answer: D
Explanation:
The best technology to use for dropping excessive broadcast traffic on ingress to an ArubaOS-CX switch is rate limiting. Rate limiting is a feature that allows network administrators to control the amount of traffic that enters or leaves a port or a VLAN on a switch by setting bandwidth thresholds or limits. Rate limiting can be used to prevent network congestion, improve network performance, enforce service level agreements(SLAs), or mitigate denial-of-service (DoS) attacks. Rate limiting can be applied to broadcast traffic on ingress to an ArubaOS-CX switch by using the storm-control command in interface configuration mode. This command allows network administrators to specify the percentage of bandwidth or packets per second that can be used by broadcast traffic on an ingress port. If the broadcast traffic exceeds the specified threshold, the switch will drop the excess packets. The other options are not technologies for dropping excessive broadcast traffic on ingress because:
- DWRR queuing: DWRR stands for Deficit Weighted Round Robin, which is a queuing algorithm that assigns different weights or priorities to different traffic classes or queues on an egress port.
DWRR ensures that each queue gets its fair share of bandwidth based on its weight while avoiding starvation of lower priority queues. DWRR does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
- QoS shaping: QoS stands for Quality of Service, which is a set of techniques that manage network resources and provide different levels of service to different types of traffic based on their requirements. QoS shaping is a technique that delays or buffers outgoing traffic on an egress port to match the available bandwidth or rate limit. QoS shaping does not drop excessive broadcast traffic on ingress, but rather smooths outgoing traffic on egress.
- Strict queuing: Strict queuing is another queuing algorithm that assigns different priorities to different traffic classes or queues on an egress port. Strict queuing ensures that higher priority queues are always served before lower priority queues regardless of their bandwidth requirements or weights. Strict queuing does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
NEW QUESTION # 83
What happens when the signal from an AP weakens by being absorbed as it moves through an object?
Answer: B
Explanation:
Signal to noise ratio (SNR) is a measure that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels (dB). A high SNR means that the signal is clear and easy to detect or interpret, while a low SNR means that the signal is corrupted or obscured by noise and may be difficult to distinguish or recover1. When the signal from an AP Access Point. AP is a device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards. weakens by being absorbed as it moves through an object, such as a wall or a furniture, the signal power decreases. This reduces the SNR and affects the quality of the wireless connection. The noise power may also increase due to interference from other sources, such as other APs or devices operating in the same frequency band2. Therefore, the correct answer is that SNR decreases when the signal from an AP weakens by being absorbed as it moves through an object. Reference: 1 https://en.wikipedia.org/wiki/Signal-to-noise_ratio 2 https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Signal-to-Noise_Ratio_%28SNR%29_and_Wireless_Signal_Strength
NEW QUESTION # 84
Match each AAA service with its correct definition (Matches may be used more than once or not at all)
Answer:
Explanation:
Explanation:
AAA Authentication, Authorization, and Accounting (AAA) Authentication, Authorization, and Accounting (AAA) is a framework that provides security services for network access control . AAA consists of three components:
* Authentication: The process of verifying the identity of a user or device that wants to access the network based on credentials such as username and password , certificates , tokens , etc . Authentication can use different protocols such as PAP , CHAP , EAP , RADIUS , TACACS+ , etc .
* Authorization: The process of granting or denying access to network resources based on the identity and privileges of a user or device . Authorization can use different methods such as ACLs , RBAC , MAC , DAC , etc .
* Accounting: The process of recording and reporting the activities and usage of network resources by users or devices . Accounting can use different formats such as syslog , SNMP , NetFlow , etc .
service. Here is my answer:
The correct match for each AAA service with its definition is:
* Accounting: C. Tracking user activity on the network
* Authentication: D. Who can access the network based on credentials/certificates
* Authorization: B. Control users access on the network
The other options are not correct matches because:
* A list of rules that specifies which entities are permitted or denied access: This option is a definition of an access control list (ACL) Access Control List (ACL) Access Control List (ACL) is a list of rules that specifies which entities are permitted or denied access to a network resource such as a router , switch , firewall , server , etc . ACLs can be based on different criteria such as source and destination IP addresses , port numbers , protocol types , time of day , etc . ACLs can be applied to different interfaces or directions such as inbound or outbound .ACLs can be verified by using commands such as show access-lists , show ip access-lists , debug ip packet , etc . , not an AAA service.
* Who can access the network based on credentials/certificates: This option is a definition of authentication, not authorization. Authorization is the process of granting or denying access to network resources based on the identity and privileges of a user or device, not based on credentials/certificates.
References: https://en.wikipedia.org/wiki/AAA_(computer_security) https://www.cisco.com/c/en/us/support/docs/security-vpn/remote-authentication-dial-user-service-radius/13838-10.html
NEW QUESTION # 85
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