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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
It means connecting different computers and other equipment into a network, so that they can share data and resources.
It means connecting different computers and other equipment into a network, so that they can share data and resources.
It means connecting different computers and other equipment into a network, so that they can share data and resources.
It means connecting different computers and other equipment into a network, so that they can share data and resources.
What are the Advantages and disadvantages of cyclic redundancy check?
Advantages: CRC is simple to implement in binary hardware, Mathematical analysis of CRC is very simple, and it is good at detecting common errors caused by noise in transmission.
Disadvantages: CRC is not suitable for protecting against intentional alteration of data, and overflow of data is possible in CRC.
How many wires do serial cables used on computers have?
This depends entirely on the use of the cable.
In a full features RS-232 cable there would be 9 cables. But most hardware that uses a serial cable doesn't have the need for all of these wires so the number may vary.
regards,
tesseract
How are route policies applied in the core?
The core must be able to quickly forward data to other parts of the network.
What application layer protocol uses 10.1.1.145.110?
TCP port 110 is POP3 - Post Office Protocol 3 - It is used to retrieve eMail that was stored for the receipient.
ANDing is used by a router, to see if the host which has to be contacted, is on the local network of the router, or a remote network.
Which of the following NetWare protocols provides guaranteed packet delivery?
a. NWLink
b. IPX
c. SPX
d. NCP
What is the difference between IPS and UPS?
Both of are power supply devices. But there are many difference between IPS & UPS.
1. IPS means Instant power supply, UPS means Uninterrupted Power system.
2. IPS backup system is so high, But UPS backup system is low
3. IPS use a large number of electronic equipment, But UPS use a small equipment
4. IPS provide large time backup, But UPS provide short time backup
5. For IPS must be use big size battery, But UPS is not.
6. IPS can be operate more than one electronic equipment like Computer, TV, Fan etc at a time, But UPS can be operate only one equipment.
How networking media devices and software work together to provide data networking services?
How networking media devices and software work together to provide data networking services?
The groups of wires that transfer data are known as the?
There are multiple wires connecting each sub-unit and data is exchanged using a parallel transfer mode. This mode of operation results in minimal delays in transferring each word. • In parallel transmission, all the bits of data are transmitted simultaneously on separate communication lines. • In order to transmit n bits, n wires or lines are used.
The easiest way to solve this problem: use a wireless connection. Many recent computers include a wireless NIC (network interface card), and can connect to wireless networks easily, leaving the Ethernet port free. This will only work, obviously, if this computer has a wireless card and there is a wireless network to connect to.
If wireless is not an option, purchasing an additional Ethernet card will upgrade the computer to owning two Ethernet ports. One port can be used for the Internet, the other for this external service.
What is different limited broadcast and directed broadcast?
- Limited Broadcast - Sent to all NICs on the some network segment as the source NIC. It is represented with the 255.255.255.255 TCP/IP address. This broadcast is not forwarded by routers so will only appear on one network segment.
- Direct broadcast - Sent to all hosts on a network. Routers may be configured to forward directed broadcasts on large networks. For network 192.168.0.0, the broadcast is 192.168.255.255.
Are network functions only associated with one layer of the OSI model?
No, At each layer, protocols perform servers unique to that layer. While performing those services, the protocols also interact with protocols in the layers directly above and below. In addition, at the top of the OSI model, Application layer protocols interact with the software you use. At the bottom, Phsyical layer services act on the networking cables and connectors to issue and receive signals.
In many cases, the cost of the transmission medium is large compared to the cost of a single transmitter/receiver pair or a modulator/demodulator pair. If there is spare bandwidth, then the incremental cost of the transmission can be negligible. The new station pair is simply added to an unused sub channel. If there is no unused sub channel it may be possible to re divide the existing sub channels creating more sub channels with less bandwidth. If, on the other hand a new pair causes a complete new line to be added then the incremental cost if large indeed.
What advantages and disadvantages of handouts?
The advantages would be that you can choose who you give them to and then you can explain about it. The disadvantages would be that if you are handing them out on the street and stuff like that, alot of the time people don't take them because they cannot be bothered to or they just don't want to because they might think it is a load of rubbish.
A wireless LAN driver is a Windows file or set of files that tells the computer how to communicate with the wireless hardware inside of it. It may also come with a utility that aids in connection to wireless networks. If you are looking for a particular wireless driver, you can google the maker and model of your wireless card and you should be able to download it. (That is supposing you have an alternate way of connecting to the internet, otherwise use a computer that is and put the driver on a jumpdrive/memory stick.)
Differences between go back n arq and selective repeat arq protocol?
1.Selective repeat ARQ is efficient for noisy links and Go Back N ARQ is inefficient for noisy link.
2.Selective Repeat ARQ is complicated whether Go Back N ARQ is less complicated than Selective repeat ARQ.
3.in Sender and receiver Window Size is 2^(m-1) and in Go Back N ARQ Sender Window Size is 2^(m)-1 and receiver window size is 1.
What are the benefits of using the DHCP?
DHCP is Dynamic Host Configuration Protocol. In a networked environment it is a method to assign an 'address' to a computer when it boots up.
Benefit: A system administrator need not worry about computers being able to access networked resources.
Disadvantages: (I'm still looking for it)
