data echecs16.info main functions are. ❖ File transfer. ❖ File storage and data migration . Network Connectivity. Hardware. ▫ Repeaters. ▫ Hubs. ▫ Bridges. Computer Networking: Principles, Protocols, and Practice was written by Dr. Olivier . Furthermore, the documents that define almost all of the Internet protocols have There are hardware devices that process the bit stream produced by a. Hardware & Networking Notes - Download as PDF File .pdf), Text File .txt) or read online.
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Tools for teaching computer networking and hardware concepts / Nurul Sarkar, .. Figure 1 shows an Ethernet LAN with one file server, 10 workstations, and two . PDF | I. Sarkar and others published Computer Networking and Hardware Concepts. Computer Hardware: Hardware Components and Internal PC Connections. .. computer or peripheral you want to connect to the network. com/content/dam/ www/public/us/en/documents/product-briefs/echecs16.info 8.
Terrestrial microwaves are in the low gigahertz range, which limits all communications to line-of-sight. These Earth-orbiting systems are capable of receiving and relaying voice, data, and TV signals. Cellular and PCS systems use several radio communications technologies. The systems divide the region covered into multiple geographic areas. Each area has a low-power transmitter or radio relay antenna device to relay calls from one area to the next area. Wireless LANs use spread spectrum technology to enable communication between multiple devices in a limited area.
An example of a WAN is the much-used and loved, Internet. Servers - Servers are computers that hold shared files, programs, and the network operating system.
Servers provide access to network resources to all the users of the network.
There are many different kinds of servers, and one server can provide several functions. For example, there are file servers, print servers, mail servers, communication servers, database servers, print servers, fax servers and web servers, to name a few. Clients - Clients are computers that access and use the network and shared network resources. Client computers are basically the customers users of the network, as they request and receive services from the servers.
Transmission Media - Transmission media are the facilities used to interconnect computers in a network.
Transmission media are sometimes called channels, links or lines. Shared data - Shared data are data that file servers provide to clients such as data files, printer access programs and e-mail. Shared printers and other peripherals - Shared printers and peripherals are hardware resources provided to the users of the network by servers.
Resources provided include data files, printers, software, or any other items used by clients on the network. The NIC prepares formats and sends data, receives data, and controls data flow between the computer and the network. On the transmit side, the NIC passes frames of data on to the physical layer, which transmits the data to the physical link.
On the receiver's side, the NIC processes bits received from the physical layer and processes the message based on its contents.
Local Operating System - A local operating system allows personal computers to access files, print to a local printer, and have and use one or more disk and CD drives that are located on the computer. Induced noise comes from sources such as motors and other electronic appliances.
Crosstalk is the effect of one wire on the other. Impulse noise comes from power lines, lightning etc. Question 7.
What Is Ip? Question 8. Answer : Hub is a layer 1 device.
It is unable to detect the collision. Switch is layer 2 device. CAM table is used to make the forwarding decision. Question 9.
What Is A Layer? Answer : Layer is a completely logical partition of PDU protocol data unit process. Question Explain Hidden Shares. How Do They Work?
Administrative shares are usually created automatically for the root of each drive letter. They do not display in the network browse list. Answer : The address resolution protocol ARP is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP uery packet that includes the IP address of the receiver.