* Sometimes we mark a Gather node as "invisible", which means that it's * not displayed in EXPLAIN output. The purpose of this is to allow * running regression tests with force_parallel_mode=regress to get the * same results as running the same tests with force_parallel_mode=off. */...
The purpose of a trunk-group-label is similar to a Carrier-ID in the sense that it can be used to augment the matching of dial-peers. This is available for configuration within POTS trunk groups, VOIP and POTS dial-peers as well as voice source groups. The use of Trunk...
Explain the purpose of the hierarchical nature of traditional structured analysis and design. Describe what kinds of systems and architectures are naturally more inclined to a hierarchy. Explain your What is the difference between a class and an instance of the class?
Why did the Internet need the Internet Protocol (IP)? What is fragmentation, and why is it needed? What is an IPv4 packet sent to all workstations on the network called? 1)What purpose does a router serve? 2)What is a data packet and how is it made...
Types of networksNot all computer networks are the same. The network I'm using to link this laptop to my wireless router, printer, and other equipment is the smallest imaginable. It's an example of what's sometimes called a PAN (personal area network)—essentially a convenient, one-person...
1. A router on dedicated connection to the Internet can be plugged into firewall system. This can also be provided with the help of a hub for full access servers outside firewall. 2. Router can be configured with some filtering rules. However, this router may be owned by ISP therefore,...
The basic purpose of memory—human or machine—is to keep a record of information for a period of time. One of the really noticeable things about human memory is that it's extremely good at forgetting. That sounds like a major defect until you consider that we can only pay attention to ...
Cause is used to explain why things happen, and effect is toexplain what happens as a result. 暂无答案
Most home networks that are behind a router usually have addresses such as 192.168.0.xx or 192.168.1.xx and use NAT to present different addresses to the rest of the internet. Thus, the killer must have been extremely close, likely inside the house, using the victim's own computer ...
What is the difference between WAN and LAN? (a) Describe the functions of a hub, bridge, switch, and router. (b) Describe the differences between these devices. Differentiate between network topology and network type. 1. Explain the...