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| Section | Weight | Objectives |
|---|---|---|
| Routing | 13% | - Routing topologies and protocols - OSPF, policy-based routing implementation |
| WLAN | 17% | - RF fundamentals and optimization - WLAN architecture and AP deployment - WLAN security and connectivity modes |
| Security | 9% | - Guest access and threat mitigation - Secure access control and segmentation - Network security standards and policies |
| Performance Optimization | 7% | - Network performance tuning - QoS implementation and traffic management |
| Network Stack | 4% | - 802.11, 802.1, and 802.3 technologies |
| Troubleshooting | 6% | - Performance and connectivity issue resolution - Fault isolation and troubleshooting methodologies |
| Management and Monitoring | 6% | - Monitoring tools: SNMP, Syslog, NetFlow - Automation and API usage - Aruba Central management and monitoring |
| Switching | 14% | - Layer 2 / Layer 3 switching implementation - VLAN design, trunking, spanning tree - High availability at access layer |
| Authentication and Authorization | 8% | - AAA concepts and implementation - 802.1X, MAC authentication, ClearPass integration |
| Network Resiliency and Virtualization | 8% | - VSX, VSF, VRF, VxLAN technologies - Redundancy and fault tolerance mechanisms |
| Connectivity | 8% | - Network architectures and technologies - Network device deployment |
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NEW QUESTION # 47
What is an OSPF transit network?
Answer: B
Explanation:
OSPF is a link-state routing protocol that divides a network into areas. An area is a logical grouping of routers that share the same link-state information. Area 0 is the backbone area that connects all other areas. A transit network is a special network that connects two different areas.
A transit network must belong to Area 0 and have at least two OSPF routers attached to it. A transit network allows traffic from one area to pass through another area without changing the area ID.
NEW QUESTION # 48
Describe the difference between Class of Service (CoS) and Differentiated Services Code Point (DSCP).
Answer: A
Explanation:
CoS and DSCP are both methods of marking packets for quality of service (QoS) purposes. QoS is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc. CoS stands for Class of Service and is a 3-bit field in the 802.1Q VLAN tag header. CoS can only be used on Ethernet frames that have a VLAN tag, and it can only be preserved within a single VLAN domain. DSCP stands for Differentiated Services Code Point and is a 6-bit field in the IP header. DSCP can be used on any IP packet, regardless of the underlying layer 2 technology, and it can be preserved throughout the IP packet flow, unless it is modified by intermediate devices.
References: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos/configuration/15-mt/qos-15-mt-book/qos- overview.html https://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-packet-marking/10103-dscpvalues.
html
NEW QUESTION # 49
Which protocol can be sent from an AOS-CX switch to provision DSCP and PoE settings to a connected VoIP phone?
Answer: B
Explanation:
LLDP-MED (Link Layer Discovery Protocol - Media Endpoint Discovery) is specifically designed to extend standard LLDP functionality for media endpoints such as VoIP phones . On AOS-CX switches, LLD P-MED can advertise network-policy information and power-related information directly to a connected IP telephone.
HPE Aruba Networking documents that the LLDP-MED network-policy TLV allows endpoints and network devices to exchange the voice VLAN ID, IEEE 802.1p priority, and DSCP values associated with voice applications. This enables a connected VoIP phone to automatically obtain the QoS information required for correct voice traffic classification. Aruba Networking LLDP-MED also supports PoE information through MED TLVs . AOS-CX provides the lldp med poe capability to advertise Power over Ethernet Data Link Layer Classification information and, where configured, PoE priority information. Aruba Networking Standard LLDP provides basic device discovery but LLDP-MED adds the media-specific extensions required here. LACP negotiates link aggregation and has no role in voice endpoint provisioning. CDP is Cisco ' s proprietary discovery protocol and is not the standards-based AOS-CX mechanism specified for this purpose.
Therefore, LLDP-MED is the protocol that satisfies both the DSCP/QoS and PoE provisioning requirements.
Study Guide Topics: LLDP-MED, VoIP Endpoint Provisioning, Network Policy TLVs, DSCP, 802.1p, PoE, AOS-CX Device Discovery.
NEW QUESTION # 50
What is used to retrieve data stored in a Management Information Base (MIB)?
Answer: A
Explanation:
SNMPv3 is a protocol that is used to retrieve data stored in a Management Information Base (MIB), which is a database of managed objects in a network. SNMPv3 provides security and access control features that are not available in earlier versions of SNMP. SNMPv3 can also use encryption to protect the data from unauthorized access or modification.
NEW QUESTION # 51
A customer has a large number of food-producing machines
* All machines are connected via Aruba CX6200 switches in VLANs 100.110. and 120
* Several external technicians are maintaining this special equipment
What are the correct commands to ensure that no rogue DHCP server will impact the network?
Answer: A
Explanation:
Explanation
Option A shows the correct commands to ensure that no rogue DHCP server will impact the network. The commands include the following steps:
* Enable DHCP snooping on the switch. DHCP snooping is a feature that prevents rogue DHCP servers from offering IP addresses to clients by filtering DHCP messages based on trusted and untrusted ports1.
* Configure VLANs 100, 110, and 120 as DHCP snooping VLANs. This means that DHCP snooping will be applied to these VLANs and any untrusted DHCP messages received on these VLANs will be dropped1.
* Configure LAG 1 as a trusted port for DHCP snooping. This means that any DHCP messages received on LAG 1 will be allowed and not filtered by DHCP snooping. LAG 1 is assumed to be connected to a legitimate DHCP server or a router that relays DHCP requests to a legitimate DHCP server1.
Option B is incorrect because it does not enable DHCP snooping on the switch or configure VLANs 100, 110, and 120 as DHCP snooping VLANs. Option C is incorrect because it does not configure LAG 1 as a trusted port for DHCP snooping. Option D is incorrect because it does not enable DHCP snooping on the switch or configure LAG 1 as a trusted port for DHCP snooping. References: 1
https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-BD3E0A5F-FE4C-4B9B-BE1D-FE7
NEW QUESTION # 52
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