Reviewing Scope Got all that? Let’s review the rules on scope: Local variables: In scope from declaration to the end of the block Method parameters: In scope for the duration of the method Instance variables: In scope from declaration until the object is eligible for garbage collection Not sure what garbage collection is? Relax: that’s […]

S3 Static Website Hosting This section covers the following objective of Domain 5 (Networking and Content Delivery) from the official AWS Certified SysOps Administrator – Associate (SOA-C02) exam guide: 5.2 Configure domains, DNS services, and content delivery CramSaver If you can correctly answer these questions before going through this section, save time by skimming the […]

Getting hands-on with Amazon Lex Let’s get started: Figure 8.25 – The Create dialog of Amazon Lex Some sample utterances can be seen in Figure 8.26. In this example, movie_type is my variable: Figure 8.26 – The Sample utterances section Figure 8.27 – The Response section of Amazon Lex Figure 8.28 – The Response section […]

Written Labs Written Lab 7.1: Create a VPN Attachment on a Transit Gateway Using the Console For more information about these options, see https://docs.aws.amazon.com/vpn/latest/s2svpn/VPNTunnels.html. Written Lab 7.2: Perform a traceroute Written Lab 7.3: Use ping

Account skew Some standard Salesforce objects maintain a special data relationship to facilitate record access under private sharing models. This is especially true of accounts and opportunities (and, in fact, is how account and opportunity teams are facilitated with regard to sharing and access to select records). Account skew is the result of an account […]

Tracing Scope The exam will attempt to trick you with various questions on scope. You’ll probably see a question that appears to be about something complex and fails to compile because one of the variables is out of scope. Let’s try one. Don’t worry if you aren’t familiar with if statements or while loops yet. […]

Here’s an example to illustrate this approach. The code starts by defining a list of SObject types (searchTypes), which includes Account and Contact. It initializes a map (relatedRecordsMap) to store related records based on their SObjectType. List<SObjectType> searchTypes = new List<SObjectType> {Account.SObjectType, Contact.SObjectType}; Map<SObjectType, List<SObject>> relatedRecordsMap = new Map<SObjectType, List<SObject>>(); // Build the SOSL query […]

Summary In this chapter, you learned how to review and analyze many log files using native tools found in AWS. You also had a brief overview of how costs can affect your decisions when choosing the correct storage solution for your long-term log storage for your account and your organization. This overview was presented through […]

Failover Routing Policy Route 53 health checks monitor the health and performance of your web resources. Health checks can monitor a specific resource (such as a web server or load balancer) or the status of an Amazon CloudWatch alarm. You can configure DNS failover based on the status of a health check. This is a […]

Foundation Topics Routing Protocols Support on Cisco Nexus Devices The Cisco Nexus devices line-up at the time of writing this book consists of Cisco Nexus 9200, Cisco Nexus 9300, Cisco Nexus 9400, Cisco Nexus 9500, Cisco Nexus 9800 and the ultra-low latency Cisco Nexus 3550, as well as Nexus 3400 and 3600 switches. Note: In […]