A signal from the source travels in both directions to all machines connected on the bus cable until it finds the intended recipient. If the machine address does not match the intended address for the data, the machine ignores the data. Alternatively, if the data matches the machine address, the data is accepted. Since the bus topology consists of only one wire, it is rather inexpensive to implement when compared to other topologies. However, the low cost of implementing the technology is offset by the high cost of managing the network.
However, the standard does not require this. The SSID is defined as a sequence of 2–32 octets each of which may take any value. It is legitimate for multiple access points to share the same SSID if they provide access to the same network as part of an extended service set. Many access points allow a user to turn off the broadcast of the SSID. With many network client devices, this results in the detected network displaying as an unnamed network and the user would need to manually enter the correct SSID to connect to the network.
Check the workstations using ipconfig /all and find out if the ip range is within the address range you assigned, if it is a different address then the workstation failed to contact the DHCP server and has gone into apipa mode. The Network Interface Card might be assigned an incorrect driver. Another possible cause of the problem is that the patch cable is not plugged into the Network Interface Card, or is not connected to a switch on the other end. However, it could be that the server has run out of IP addresses that it can assign to clients. You can easily tell if this is the problem by comparing the size of the DHCP address scope to the number of devices on your network that request IP addresses from the DHCP server.
Operations will monitor all communication with network equipment and server equipment. However, operations will not execute anything they are here strictly for monitoring. The network engineers SharePoint portals will have a more detailed breakdown of each task. The network engineers’ main task is the upgrade of routers and switches, configuration of WLANs, LAN configuration, ISDN configuration, and redundancy throughout the network. The downtime with this upgrade and movement is to have little impact on operations.
Dedicated digital circuits 3. c. Routers use Layer 3 and ignore Layers 1 and 2. d. Routers discard old data-link headers and insert new data-link headers as part of their logic, which treats each interface’s lower-layer details as independent from each other. 4. b. As a transport service to deliver IP packets to the next IP router 5. b. Star 6. c. 64 Kbps, 1.544 Mbps, and any speed in between d. No literal distance limitation 7. a. A patch cable with RJ-48 8. c. The switches map the T1 customer lines to one of 28 different frequencies in the T3 trunks.
D Key Terms Computer networking – the gerund form of the term computer network. Computer network – a combination of many components that work together so that many different devices can communicate. Application – a function on any kind of computer or electronic device that is useful to the user, which can give the user a reason to want to own and use the device. More specifically, software that performs some useful function for the user. Email – electronic mail.
Question 1: Define and explain the following terminologies: Computer network; White (2013, p.3) defines computer network as “an interconnection of computers and computing equipment using wires or radio waves and can share data and computing resources”. It is basically an interconnection of computer systems comprising of devices such as servers, computers (desktop, laptop), tablets (iPads), mainframe and other hardware devices such as storage devices and printers. Its main purpose is to allow for communication between these computers and equipment so that the different users of the computers in the network can share data and resources. All networks have * a medium of communication that are either hard wired using copper cables, co-axial
Unit 4: Port Expander A port expander is a hardware device that attaches to a laptop or computer, inside or out, to allow multiple connections through a single port. There are two types of port extenders, with various different connections, internal and external. Internal port expanders (appendix A) connect to the motherboard and external ports expanders (appendix B) by USB. Port expanders are all generic for the most part. If the chip fits or there is USB access the port expander will operate.
This will help keep people out that aren’t supposed to be accessing the information (Jones and Bartlett Learning). The LAN to WAN domain is the third layer of the infrastructure I will discuss. I feel this is also affected by the “internal use only” standard. The TCP and UDP are not safe due the fact these are the enter and exit points of the network. This allows all the private information on the network at Richman Investments easy accessible for others outside of the network (Solomon).
Zachary Tilton Network Standards and Protocols October 2, 2015 Unit 2 Assignment 1: Identifying Network Topologies Mesh Topology – Has a point to point link to every other device. Advantages are: They use dedicated links so each link can only carry its own data load, if any one link gets damaged it cannot affect the others, and fault identification and fault isolation are easy. Disadvantages is the wiring cost and the hardware to connect each device can be expensive. Star Topology – Each device has a dedicated point to point link to the central controller. No direct traffic between devices so all data travels through the central controller.