This topic will introduce the role of the router in the routing process and an introduction their use of routing tables for forward packets. Router Packet Forwarding Decision (32.2.1) The previous topic discussed host routing tables. Most networks also contain routers, which are intermediary devices. Routers also contain routing tables. This topic covers router operations…
Developer sandbox – Certified Advanced Salesforce Admin Exam Guide
Developer sandbox This sandbox is used mainly for the development process. It contains a copy of all the production metadata but no records at all (exceptions include users, for instance). Having no access to real production data allows administrators and developers to safely develop their features without worrying about how data should be handled. The…
Default Gateway – Cisco 100-150 Guide
Default Gateway (32.1.2) The default gateway is the network device (i.e., router or Layer 3 switch) that can route traffic to other networks. If you use the analogy that a network is like a room, then the default gateway is like a doorway. If you want to get to another room or network you need…
Change Management – Certified Advanced Salesforce Admin Exam Guide
Change Management It’s important to provide your team with a safe place to implement new features using sandboxes. They should learn to master change management with change sets and learn which other tools can be used to move organization configurations from one organization to another. It is equally important to learn how to pull and…
Routing at the Network Layer
Objectives Upon completion of this chapter, you will be able to answer the following questions: • How do network devices use routing tables to direct packets to a destination network? • What is the function of fields in the routing table of a router? Key Terms This chapter uses the following key terms. You can…
Contention-Based Access — CSMA/CA
Another form of CSMA used by IEEE 802.11 WLANs is carrier sense multiple access/collision avoidance (CSMA/CA). CMSA/CA uses a method similar to CSMA/CD to detect if the media is clear. CMSA/CA uses additional techniques. In wireless environments it may not be possible for a device to detect a collision. CMSA/CA does not detect collisions but…
High-volume community users
High-volume community users High-volume community users do not have roles, which removes any performance degradation related to sharing calculations with external users: they are not affected by the number of roles that are selected in the Communities Settings page. The related user licenses are Customer Community, High Volume Customer Portal, and Authenticated Website. But how…
Contention-based Access – Cisco 100-150 Guide
Contention-based Access In contention-based multiaccess networks, all nodes are operating in half-duplex, competing for the use of the medium. However, only one device can send at a time. Therefore, there is a process if more than one device transmits at the same time. Examples of contention-based access methods include the following: • Carrier sense multiple…
Legacy LAN Topologies – Cisco 100-150 Guide
Legacy LAN Topologies Early Ethernet and legacy Token Ring LAN technologies included two other types of topologies: • Bus — All end systems are chained to each other and terminated in some form on each end. Infrastructure devices such as switches are not required to interconnect the end devices. Legacy Ethernet networks were often bus…
Sharing within Salesforce communities
Sharing within Salesforce communities Before closing this chapter, a few words should be said on how sharing is handled in communities. You should already be aware of what Salesforce communities are, but let’s provide a brief summary anyway. Salesforce communities are a way to allow external people to interact and collaborate with your business processes….