11.1  Lightning Component Framework Lightning Component framework is a previous development framework provided by Salesforce for building dynamic and responsive web applications and user interfaces on the Salesforce platform. The Aura framework is the underlying technology that powers the Lightning Component framework. It’s a client-side framework that allows you to create reusable components, and it’s […]

Sending Ethernet Frames with Switches and Hubs Ethernet LANs behave slightly differently depending on whether the LAN has mostly modern devices, in particular, LAN switches instead of some older LAN devices called LAN hubs. Basically, the use of more modern switches allows the use of full-duplex logic, which is much faster and simpler than half-duplex […]

Example 1-20 shows SW9621-1, SW9621-2, and SW9621-3 Multicast PIM configurations and IP PIM status. Example 1-20 Enabling PIM on Routers 1 to 3 (SW9621-1 to SW9621-3) and Verifications SW9621-1(config)#feature pimSW9621-1(config)#interface e2/1SW9621-1(config-if)#ip pim sparse-modeSW9621-1(config)#interface e2/2SW9621-1(config-if)#ip pim sparse-mode SW9621-2(config)#feature pimSW9621-2(config)#interface e2/1SW9621-2(config-if)#ip pim sparse-modeSW9621-2(config)#interface e2/2SW9621-2(config-if)#ip pim sparse-mode SW9621-3(config)#feature pimSW9621-3(config)#interface e2/1SW9621-3(config-if)#ip pim sparse-modeSW9621-3(config)#interface e2/2SW9621-1(config-if)#ip pim sparse-mode SW9621-1#show ip pim neighborPIM […]

Review Questions 5: int ph = 7, vis = 2; boolean clear = vis > 1 & (vis < 9 || ph < 2); boolean safe = (vis > 2) && (ph++ > 1); boolean tasty = 7 <= -­-­ph; System.out.println(clear + “-­” + safe + “-­” + tasty); int a = 2, b = […]

Route Priorities and Administrative Distance The administrative distance applies a priority value to a prefix in the routing table relative to other routing protocols that may be running on the router. A static route’s administrative distance configuration is an optional value that is used to determine the trustworthiness of the route. The lower the administrative […]

Identifying Network Layer Protocols with the Ethernet Type Field While the Ethernet header’s address fields play an important and more obvious role in Ethernet LANs, the Ethernet Type field plays a much less obvious role. The Ethernet Type field, or EtherType, sits in the Ethernet data-link layer header, but its purpose is to directly help […]

Multicast Configurations and Verifications You can configure separate ranges of addresses in the PIM or PIM6 domain using the multicast distribution modes described in Table 1-22. Table 1-22 PIM and PIM6 Multicast Distribution Modes Tables 1-23 through 1-25 describe the most-used multicast configuration commands. For the full list of commands, refer to the Nexus Multicast Routing Configuration […]

Creating Key Pairs You will now learn to create a new key pair that can be used for an instance. Not creating these key pairs can hinder your ability to connect to your EC2 instances, especially if those instances are not running Systems Manager Agent, as you will see later in this chapter in the […]

SageMaker Feature Store Imagine you are building a recommendation system. In the absence of Feature Store, you’d navigate a landscape of manual feature engineering, scattered feature storage, and constant vigilance for consistency. Feature management in an ML pipeline is challenging due to the dispersed nature of feature engineering, involving various teams and tools. Collaboration issues […]

ExamAlert The AWS Well-Architected Framework is a big topic. Although you don’t need to be an expert on this topic for the exam, having a basic understanding of the pillars and their purpose will help you with some difficult questions on the exam. Both the Operational Excellence and Performance Efficiency pillars rely on monitoring resources, […]