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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Switching | 19% | - Layer 2/Layer 3 technologies - Campus architecture design - VLANs, trunking and STP - Aruba CX switch configuration |
| Topic 2: Connectivity | 10% | - Infrastructure deployment principles - Foundational networking architectures |
| Topic 3: Security | 9% | - ACLs and traffic filtering - ClearPass integration basics - Wired and wireless security policies - Security standards and concepts |
| Topic 4: Routing | 9% | - Static routing configuration - Dynamic routing protocols - Routing topology design |
| Topic 5: WLAN | 18% | - Roaming and mobility basics - WLAN security and SSID setup - AP configuration and groups - Radio Frequency (RF) attributes |
| Topic 6: Performance Optimization | 3% | - QoS principles and implementation |
| Topic 7: Network Resiliency and Virtualization | 8% | - Virtual switching concepts - Infrastructure device management - Redundancy and fault tolerance |
| Topic 8: Authentication and Authorization | 6% | - AAA concepts and operation - Access control methods |
| Topic 9: Management and Monitoring | 7% | - Health and performance assessment - Aruba Central management platform - Network monitoring tools |
| Topic 10: Network Stack | 7% | - OSI Model layers and architectural elements - TCP/IP stack concepts |
| Topic 11: Troubleshooting | 4% | - Troubleshooting methodologies - Common network issues resolution |
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NEW QUESTION # 69
Which flew in a Layer 3 IPv4 packet header is used to mitigate Layer 3 route loops?
Answer: B
Explanation:
The field in a Layer 3 IPv4 packet header that is used to mitigate Layer 3 route loops is Time To Live (TTL). TTL is an 8-bit field that indicates the maximum number of hops that a packet can traverse before being discarded. TTL is set by the source device and decremented by one by each router that forwards the packet. If TTL reaches zero, the packet is dropped and an ICMP Internet Control Message Protocol (ICMP) Internet Control Message Protocol (ICMP) is a network protocol that provides error reporting and diagnostic functions for IP networks. ICMP is used to send messages such as echo requests and replies (ping), destination unreachable, time exceeded, parameter problem, source quench, redirect, etc. ICMP messages are encapsulated in IP datagrams and have a specific format that contains fields such as type, code, checksum, identifier, sequence number, data, etc. ICMP messages can be verified by using commands such as ping, traceroute, debug ip icmp, etc. message is sent back to the source device. TTL is used to mitigate Layer
3 route loops because it prevents packets from circulating indefinitely in a looped network topology. TTL also helps to conserve network resources and avoid congestion caused by looped packets.
The other options are not fields in a Layer 3 IPv4 packet header because:
- Checksum: Checksum is a 16-bit field that is used to verify the integrity of the IP header. Checksum is calculated by the source device and verified by the destination device based on the values of all fields in the IP header. Checksum does not mitigate Layer 3 route loops because it does not limit the number of hops that a packet can traverse.
- Protocol: Protocol is an 8-bit field that indicates the type of payload carried by the IP datagram. Protocol identifies the upper-layer protocol that uses IP for data transmission, such as TCP Transmission Control Protocol (TCP) Transmission Control Protocol (TCP) is a connection-oriented transport layer protocol that provides reliable, ordered, and error-checked delivery of data between applications on different devices. TCP uses a three-way handshake to establish a connection between two endpoints, and uses sequence numbers, acknowledgments, and windowing to ensure data delivery and flow control. TCP also uses mechanisms such as retransmission, congestion avoidance, and fast recovery to handle packet loss and congestion. TCP segments data into smaller units called segments, which are encapsulated in IP datagrams and have a specific format that contains fields such as source port, destination port, sequence number, acknowledgment number, header length, flags, window size, checksum, urgent pointer, options, data, etc. TCP segments can be verified by using commands such as telnet, ftp, ssh, debug ip tcp transactions, etc ., UDP User Datagram Protocol (UDP) User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides
NEW QUESTION # 70
Which statement is true for a device with a MAC address of B8-31-B5-80-41-4F?
Answer: B
Explanation:
A MAC address is divided into two parts: the Organizationally Unique Identifier (OUI) and the Network Interface Controller (NIC) serial number. The OUI is the first three octets of the MAC address and is unique to the manufacturer. The NIC serial number is the last three octets and is unique to the device itself. Therefore, for the MAC address B8-31-B5-80-41-4F, the OUI is B8-31-B5, and the NIC serial number is 80-41-4F.
NEW QUESTION # 71
What are two characteristics of ClientMatch? (Select two.)
Answer: A,D
Explanation:
ClientMatch is an Aruba patented technology that helps to move sticky clients-clients that stay connected to an AP even when there are better APs available-to a more appropriate AP. This technology ensures that clients are always connected to the best available AP, optimizing both the client's performance and the overall performance of the wireless network.
NEW QUESTION # 72
How does the Aruba Central platform assist in managing Aruba networking devices?
Answer: C
NEW QUESTION # 73
When using the OSPF dynamic routing protocol on an Aruba CX switch, what must match on the neighboring devices to exchange routes?
Answer: C
Explanation:
Explanation
OSPF Open Shortest Path First. OSPF is a link-state routing protocol that uses a hierarchical structure to create a routing topology for IP networks. OSPF routers exchange routing information with their neighbors using Hello packets, which are sent periodically on each interface. To establish an adjacency Adjacency is a relationship formed between selected neighboring routers for the purpose of exchanging routing information., OSPF routers must agree on several parameters, including Hello timers, which specify how often Hello packets are sent on an interface. If the Hello timers do not match between neighboring routers, they will not form an adjacency and will not exchange routes.
References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/osfp/o
NEW QUESTION # 74
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