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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
What are the Different types of data transfer instructions?
1.simple i/o:
2.programmed i/o:
a) synchronous data transfer
b) asynchronous data transfer
c) interrupt driven data transfer
3.Direct memory access data transfer
a) burst mode
b) cycle stealing mode
What is the difference between monster mesh and six diamond mesh?
There is no difference. They are the same thing. Although there are 4 different types of monster mesh them being mega mesh (5 diamond), monster mesh (6 diamond), 7, and eight diamond monster mesh. The entire company is called monster mesh but when people say monster mesh they normally mean 6 diamond. :)
All IPv4 IP addresses can be divided into two major groups: global, or public, or external - this group can also be called 'WAN addresses' — those that are used in the Internet, and private, or local, or internal addresses — those that are used in the local network (LAN).
Deference between cat5 and cat6?
The most obvious difference is their transfer capability. CAT5 has four pairs of twisted copper wire and supports up to 100m of Fast Ethernet (100Mbps) transfers. Although CAT5 has four twisted pairs, it only makes use of two pairs. CAT6 also has four pairs of twisted copper wire which supports Gigabit Ethernet (1000 Mbps) of up to 100m. Unlike CAT5, CAT6 takes advantage of all four pairs. CAT6 has a 2x transfer rate compared to CAT5 but due to the higher price tag of CAT6.
standard for data transmission in a local area network that can extend in range up to 200 kilometers (124 miles). Although FDDI logical topology is a token ring network, it does not use the IEEE 802.5 token ring protocol as its basis; instead, its protocol is derived from the IEEE 802.4 token bus timed token protocol. In addition to covering large geographical areas, FDDI local area networks can support thousands of users. As a standard underlying medium it uses optical fiber, although it can use copper cable, in which case it may be refer to as CDDI. FDDI uses a dual-attached, counter-rotating token ring topology.
FDDI was considered an attractive campus backbone technology in the early to mid 1990s, but FDDI has since been effectively obsoleted by fast Ethernet and, since 1998, by Gigabit Ethernet due to their speed, lower cost, and ubiquity.
FDDI, as a product of American National Standards Institute X3T9.5 (now X3T12), conforms to the Open Systems Interconnection (OSI) model of functional layering of LANs using other protocols. FDDI-II, a version of FDDI, adds the capability to add circuit-switched service to the network so that it can also handle voice and video signals. Work has started to connect FDDI networks to the developing Synchronous Optical Network SONET.
A FDDI network contains two token rings, one for possible backup in case the primary ring fails. The primary ring offers up to 100 Mbit/s capacity. When a network has no requirement for the secondary ring to do backup, it can also carry data, extending capacity to 200 Mbit/s. The single ring can extend the maximum distance; a dual ring can extend 100 km (62 miles). FDDI has a larger maximum-frame size than standard 100 Mbit/s Ethernet, allowing better throughput.
Designers normally construct FDDI rings in the form of a "dual ring of trees" (see network topology). A small number of devices (typically infrastructure devices such as routers and concentrators rather than host computers) connect to both rings - hence the term "dual-attached". Host computers then connect as single-attached devices to the routers or concentrators. The dual ring in its most degenerate form simply collapses into a single device. Typically, a computer-room contains the whole dual ring, although some implementations have deployed FDDI as a Metropolitan area network
A physical port, as opposed to a virtual or logical port is an interface on a computer into which you can insert a connector for a device.
What is the different between Half Duplex and Full Duplex?
Half Duplex- half duplex device let you sen and receive or channel can either sending or receiving at a time but only one-way at a time.he used a walkie-talkie.
Full Duplex- Channel can both send and receive at a time.
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How do you create a movie server using High Performance Computing?
High Performance Computing (HPC) is a necessity in industries requiring the quick assessment and computation of massive amount of data. However, technological advancements have made it possible to convert HPC to a more accessible format, usable on a wider scale. The result has been the application of HPC in a variety of contexts, including the creation and playback of movies.
Although the possibilities are endless when HPC is combined with movie-making, interested parties continue to find the process complex and overly frustrating. Before movie-related tasks can be accomplished with the use of HPC, a movie server must be set up. Those with HPC servers such as Windows HPC will find solutions in the movie-making workflow in the form of such applications as Interactive Media Manager and other related programs. Also available are encoders, which allow rendered frame sequences to be split up and converted to a more efficient digital format. Again, this process is easy to complete with the download of applications such as the open source HPC video encoder.
DHCP work at which layer of osi?
It works on the "application layer", because the data is handled at that layer. However, the information it transfers (distribution of IPs) transcends "layers". BTW, It uses UDP (not TCP), at the "transport layer" on ports 67 and 68.
Edit - "Application" is 7 on the OSI model I believe, but often referred to as a different number with different models
Is an internet connection required for a home network and why?
No, a simple home network can be configured to share data and devices without connecting to the internet.
the multiples of 5 are 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 etc
Maybe try adjusting the horizontal and/or vertical sync in the projector. Most projectors have a menu setting that allows you to adjust those two sync values. By playing with those, you should see the image "re-center" itself so that no pixels are falling off the projected area.
Barring that, I don't know if your laptop itself can skew the sync signals such that the projector is happy. You could also try different cables and/or connecting directly to the projector if you're not, since the cabling and/or any intermediate device may make the skew worse.
Also, you could try a digital signal such as HDMI or DVI-D. Since they're digital, I don't think they suffer from video signal skew.
The network provider is the company who provided you with the network and who you are paying for you to be able to use their network. They are the ones who own the network that you are using. Some examples of network providers include Quest, Comcast, and Baja, but there are many more out there to choose from.
What is peer to peer process in osi model?
Protocol layers may be defined in such a way that the communications within a layer is independent of the operation of the layer being being used. This is known as "peer-to-peer" communication and is an important goal of the OSI Reference Model.
Each layer provides a protocol to communicate with its peer. When a packet is transmitted by a layer, a header consisting of Protocol Control Information (PCI) is added to the data to be sent. In OSI terminology, the packet data (also known as the Payload) is called a Protocol Data Unit (PDU). The packet so-formed, called a Service Data Unit (SDU) is passed via a service access point to the layer below. This is sent using the service of the next lower protocol layer.
Select the best definition for the network term DHCP?
A protocol that lets one device on a local network, known as a DHCP server, assign temporary IP addresses to the other network devices
