AWS Elastic Compute Cloud (EC2) is one of the most commonly used compute services in AWS. With a wide variety of operating systems and the flexibility of processing and memory options available, along with an array of performance variations to meet various workloads, the EC2 service makes it extremely easy to get up and running […]

Summary This chapter covered a wide variety of Java operator topics for unary, binary, and ternary operators. Hopefully, most of these operators were review for you. If not, you need to study them in detail. It is important that you understand how to use all of the required Java oper-ators covered in this chapter and […]

Building Physical Ethernet LANs with Fiber The capability of many UTP-based Ethernet standards to use a cable length up to 100 meters means that the majority of Ethernet cabling in an enterprise uses UTP cables. The distance from an Ethernet switch to every endpoint on the floor of a building will likely be less than […]

The ASM mode is the default mode when you configure RPs. Bidirectional shared trees (Bidir) is a PIM mode that, like the ASM mode, builds a shared tree between receivers and the RP but does not support switching over to a source tree when a new receiver is added to a group. In the Bidir […]

Spot Perhaps the most cost-effective pricing model out there, Spot Instances can provide up to 90% cost savings compared to the on-demand pricing model. However, this drastic price reduction does come with some caveats. Spot pricing is adjusted based on a particular instance’s supply and demand in a particular Region, as well as an AZ. […]

Protocol Independent Multicast PIM, which is used between multicast-capable routers, advertises group membership across a routing domain by constructing multicast distribution trees. PIM builds shared distribution trees on which packets from multiple sources are forwarded, as well as source distribution trees, on which packets from a single source are forwarded. The distribution trees change automatically […]

Choosing the Right Cable Pinouts For the exam, you should be well prepared to choose which type of cable (straight-through or crossover) is needed in each part of the network. The key is to know whether a device acts like a PC NIC, transmitting at pins 1 and 2, or like a switch, transmitting at […]

This chapter covers the following official AWS Certified SysOps Administrator – Associate (SOA-C02) exam domain: Domain 6: Cost and Performance Optimization (For more information on the official AWS Certified SysOps Administrator – Associate [SOA-C02] exam topics, see the Introduction.) In the preceding chapter, you focused on strategies and tools to optimize the costs of your […]

Experience Cloud licensing and sharing The license type used with Experience Cloud can have an impact on sharing and the way record access works for users. In a nutshell, the Customer Community license type doesn’t support roles, and sharing sets are used instead of sharing rules. Sharing sets are used to grant record access to any […]

Straight-Through Cable Pinout 10BASE-T and 100BASE-T use two pairs of wires in a UTP cable, one for each direction, as shown in Figure 2-9. The figure shows four wires, all of which sit inside a single UTP cable that connects a PC and a LAN switch. In this example, the PC on the left transmits […]