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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

How many type of connector's used in computers?

  • PS/2 (For Keyboard and Mouse)
  • USB
  • COM1 and COM2 (serial) Port
  • Parallel Port (for Printers)
  • Speaker
  • Mic
  • Video Port (Monitor Port)
  • Lan Port

How do you set up a star topology with 5 computers without NIC's?

Without NICs? A computer needs some sort of connection to the network! I don't think you can do it.

The usual NIC is an Ethernet card or a wireless network card; neither of which should be very expensive. In the center of the star topology is either a hub or a switch. Better use a switch, if possible - it is more efficient.

What is intermediate router?

its arouter that inter connects between routers so that it connects those different networks

Which three elements must be used when configuring a router interface for VLAN trunking?

  • One sub-interface per VLAN
  • A compatible trunking protocol encapsulation for each sub-interface
  • One IP network or sub-network for each sub-interface

How do you find the binary value of an IP address?

The quickest way would be to use a calculator. If you use Windows, open the calculator, and give the command "View - Scientific" to change it to a scientific calculator. Make sure "Dec" is selected, type in the first byte, the click on "Bin" to convert to binary. If the calculator shows you less than 8 bits, you have to fill out with zeroes to the left, for a total of 8 bits. Repeat for the remaining bytes.

For certain exams, such as CCNA, you have to be able to do these calculations without a calculator - but since this looks unrelated to your question, I won't go into details here.

What type of network do dial-up lines use?

Dial-up uses a switched point to point network.

The connection between the two points is as follows:

  1. calling subscriber line
  2. subscriber side "crossbar" switch
  3. junctor
  4. trunk side "crossbar" switch
  5. trunk line (e.g. intraoffice trunk, toll office trunk, interoffice trunk, international trunk)
  6. trunk side "crossbar" switch
  7. junctor
  8. subscriber side "crossbar" switch
  9. called subscriber line
Note: if toll office trunks and/or international trunks are used to complete the connection multiple switching offices beyond the two given (i.e. calling subscriber office, called subscriber office) and additional trunk lines will be used as needed.

How do you configure a web server to use a different port number?

The answer to this question depends entirely on the web server software you are using. Generally, however, there is a configuration setting that controls the port number. Check the manual or configuration files for the exact place to change the port number.

What are the key elements of a successful cabling installation?

Data cabling installation in Sydney can be that for telecommunications, internet cables, television or a big network. The expert technicians can help organise the data cables and set up a reliable network connection. They have the expertise to organise the cables efficiently and in a versatile manner. A technician will ideally start with the survey of the site and decide on the layout of the cabling.

Several factors tend to influence the installation process like the location of the installation and if it spans multiple buildings. Some of the other factors that the technician will consider is the number of people that are meant to use the system and the main purpose of the networking system. They will pick the right cable for the job and then physically install it. The experts in Sydney for data cabling installation will usually be highly skilled and also provide a warranty for any service they offer. The data cabling will usually be carried out to ensure it lasts for over 10 years, but at the same time ensure it is easy to maintain in the case where it needs to be scaled.

What ip address class is the ip address 0.0.10.0 in?

0.0.10.0 is a Class A address. You can justify by the below given information: Class A 0-127 | N | H | H | H | Class B 128-191 | N | N | H | H | Class C 192-223 | N | N | N | H | Class D 224-239 Reserved for multicasting Class E 240-255 Reserved for future use N- Network bits H- Host bits

What is bridge mode in routers?

Bridge mode allows to connect to geographically separate piece of the same network together. For instance you have one piece of the network in one building and another one in another building. You can't use a cable to connect them together. In such situation you might have to use a bridge.

What is server rollback?

When a server is restored from a backup, usually due to a fault or error occurring on the system.