Operator Precedence When reading a book or a newspaper, some written languages are evaluated from left to right, while some are evaluated from right to left. In mathematics, certain operators can override other operators and be evaluated first. Determining which operators are evaluated in what order is referred to as operator precedence. In this manner, […]

TCP/IP Transport Layer Although many TCP/IP application layer protocols exist, the TCP/IP transport layer includes a smaller number of protocols. The two most commonly used transport layer protocols are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). Transport layer protocols provide services to the application layer protocols that reside one layer higher […]

The Details Tab The Details tab provides a high-level overview of data surrounding the route table, detailing which VPC it resides in, the account owner ID, the route table ID, and any explicit associations, as shown in the following screenshot. Figure 10.14: The Details tab These explicit associations relate to any subnets that have been […]

Note The backbone area 0 cannot be an NSSA All OSPF areas must physically connect to area 0 (backbone area). If one area cannot connect directly to area 0, you need a virtual link. Virtual links allow you to connect an OSPF area ABR to a backbone area ABR when a direct physical connection is […]

7.3  Bulk Processing for Large Datasets Collections like lists, sets, and maps are essential for bulk processing. They allow you to group and manipulate records efficiently. Fetch required data outside the loop and use collections to match and process records. Utilize bulk DML operations to update, insert, or delete multiple records in a single transaction. […]

transit VPCs The AWS transit VPC is used to create a global network transit hub that interconnects geographically separated remote networks and your VPCs. transit VPCs reduce the number of connections needed when interconnecting VPCs and remote networks by eliminating the need to create mesh connections between VPCs. transit VPCs and Transit Gateway service instances […]

Getting hands-on with Amazon SageMaker’s training and inference instances In this section, you will learn about training a model and hosting the model to generate its predicted results. Let’s dive in by using the notebook instance from the previous example: Figure 9.7 – The InService instance Figure 9.8 – The SageMaker fit API call Figure […]

Identity and Access Management (IAM) is used to manage access into the Transit Gateway service, and users and groups can be applied to define access permissions. Automated provisioning is included with the service that automatically discovers site-to-site VPN connections and other remote networks connecting into your account. SD-WAN offerings from major vendors are also supported. […]

OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER: ✓✓ Handling date, time, text, numeric and boolean values parentheses,­ type promotion, and casting to evaluate arithmetic and boolean expressions The previous chapter talked a lot about defining variables, but what can you do with a variable once it is created? This chapter introduces operators and shows how […]

To avoid recursive triggers in Apex, you can implement the following approaches as in the following example: \ 1.\ Static Boolean Variable: Create a static Boolean variable, and use it to track whether the trigger has already been executed. Set the variable to true before executing the trigger logic, and reset it to false after […]