Installing the CloudWatch Agent on an EC2 Instance In order to install the CloudWatch agent on an EC2 instance, you will need to have an EC2 instance that is running and with which the SSM can communicate successfully. One of the easiest ways to do this is to use an EC2 instance running Amazon Linux. […]

Jumbo Frames Direct Connect supports jumbo frames on the customer interconnect point from 1,522 to 9,023 bytes (14 bytes Ethernet header + 4 bytes VLAN tag + bytes for the IP datagram + 4 bytes FCS) at the OSI link layer 2. Jumbo frame support allows for a more efficient transmission of frames over an […]

Warm Standby The warm standby approach goes a step further compared to the pilot light one. It extends the same concept but also maintains a running copy, although scaled down, of your workload. So, your service is already up and running, and the only thing you need is to scale up the compute resources required […]

Cram Quiz Answer these questions. The answers follow the last question. If you cannot answer these questions correctly, consider reading this section again until you can. 1. Which of the following AWS services does not make use of ACM certificates? A. Elastic Load Balancing B. Amazon API Gateway C. AWS CloudFormation D. AWS CodeCommit 2. Which of […]

Division assignment (/=): Divides the current value of a variable by a value and assigns the result to the same variable. Decimal dividend = 20.0; Decimal divisor = 4.0; dividend /= divisor; // Equivalent to: dividend = dividend /divisor; System.debug(‘Result: ‘ + dividend); // Output: Result: 5.0 Control statements in Apex are used to control […]

It is now time to learn how to evaluate and optimize machine learning models. During the process of modeling, or even after model completion, you might want to understand how your model is performing. Each type of model has its own set of metrics that can be used to evaluate performance, and that is what […]

4.5  Operators and Control Statements Salesforce Apex provides a variety of operators that you can use to perform different operations on variables or values. These operators include arithmetic operators, comparison operators, logical operators, assignment operators, and more. Let’s go through each type of operator: Arithmetic Operators Addition (+): Adds two values together. Integer a = […]

Amazon GuardDuty Amazon GuardDuty is a tool that performs threat detection functions in your AWS infrastructure. This optional service is not turned on in your AWS account by default. When GuardDuty is enabled, it actively monitors the following: AWS CloudTrail management events AWS CloudTrail S3 data events VPC flow logs DNS logs ExamAlert A feature […]

VLANs Virtual local area networks (VLANs) are widely implemented in all types of data networks. A VLAN is defined as being a logical overlay network on a LAN that has IEEE 802.1Q addressing to group, a subset of devices, sharing a physical LAN with other devices, isolating the traffic for each VLAN. VLANs are used […]

Exam Readiness Drill – Chapter Review Questions Apart from a solid understanding of key concepts, being able to think quickly under time pressure is a skill that will help you ace your certification exam. That is why working on these skills early on in your learning journey is key. Chapter review questions are designed to […]