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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 does internet works?

Internet (HTTP)A page request from your IP is sent down your phone wire. It passes data to the Exchange, where your ISP finds the nameserver using a DNS, and redirects your request to the server. The server sends back a 200 OK header if the page was sent back correctly, which is displayed as a web page

What are the types of media?

Media and its types are

1 Internet media

2 News

3 Tv

4 radio

5 films

6 songs

Where use NRZI?

it is mainly used in FDDI protocol and USB

What is the length of the Mac address?

'the mac address' is 13 letters long with 2 spaces, so it could be argued that it's 15 characters long

How many bites are in a bit?

there are eight bits in a bite ,but ,there are sixteen bites in a bit

What command would you use to add a node's IP address subnet mask and networking location interface to a routing table?

Use the syntax:

route add xxx.xxx.xxx.xxx mask xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx

meaning:

route add (destination address) mask (subnet mask) (gateway)

For example, if you are on the 192.168.1.0 network with a gateway of 192.168.1.1 that is configured to access the 10.10.10.0/24 network, your statement would look like this:

route add 10.10.10.0 mask 255.255.255.0 192.168.1.1

Note: you need to add the "-p" switch to the statement in order for the route to stay after reboot. (route -p add 10.10.10.0 mask 255.255.255.0 192.168.1.1)

If you move to another city and get another service provider does your IP remain the same?

Your public or external ip address will change, but if you use a router and you have things setup to use a static ip address then your computers private or internal ip address will stay the same but your public or external ip address will still change. Public or External IP Addresses are assigned by your internet service provides. Private or Internal IP Addresses are determined by your router if you have one.

How can Transmission media can be defined?

signal transmitted from transmitter to rfecevier is known as media transmission media divided in to two types guided unguided Transmission Media: All network nodes (computers and peripherals) are connected to each other and to the network by transmission media. A transmission medium establishes a communications channel between the nodes on a network and can take several forms: a. Networks can use existing wiring such as power lines b. Networks canuse additional cable to connect nodes c. Wireless networks use radio waves instead of wires or cable to connect nodes.

Which type of firewall technique can be used to allow inbound traffic from the public network only if it was initiated from the internal network?

If the PC from the inside network initiated the connection, then it should be allowed automatically. Firewalls by default allow connections from the inside to complete.

Firewalls can block SYN requests from the outside, but in this case, the SYN packet came from the inside - the response would be an ACK to establish the handshake.

If you are not getting a response from the outside when trying to connect, perhaps the destination firewall is blocking your attempt.

What is the minimum requirements support for user identification and authentication?

The minimum requirement's support for user identification and authentication is the use of a screen name or alias and a password. A secret question may also be used in support of the alias and password as a system for double checking identity.

What is difference between GSR and CRS router?

These kind of routers are primarly used by Videotron (a french-canadian carrier), which means nothing more than just a brand of router from Cisco.

What is a WEP code?

A WEP key is get up off lazy butt and find it out your self

What is the bandwidth of ASK?

We can use the law

B=(1+d)*S

where

B is the bandwidth

S is the signal rate

d is between 0 and 1 (depend on modulation and filtering)

Thanks

In IP address 115.69.210.28..5843 what is stand for 5843?

The format is usual 115.69.210.28:5843 and the number after the colon is the port number.

Portnumbers are like gates or doors into your computer. They range from 0 to 65535. A firewall can block or open ports on your computer. For instance, web browsers use port 80.

What should peter browning do specifically in dealing with white lawson sterk and green in peter browning and continental white cap?

Peter Browning needs to step up to the plate and do big things. He needs to call up Bob White and have a little chat with him and Art Lawson about the future of White Cap. Then he needs to call a meeting between the department managers and explain to all of them that the company will be moving in a new direction with the blessing of Bob White and Art Lawson. He must explain that the change will be gradual, not drastic, but it will be definitive and in the best interests of the company. Browning must stress the importance of cooperation from all the department heads in order for the transition to be successful.

At this point he will be able to assess over the following weeks who is willing to assist in the cultural transformation at White Cap and who is a cancer to this effort for change. Then he can weed out the opponents of the changes and have the backing of true company patriots like Bob White and Art Lawson, who know he is acting in the best interest of the company.

The elimination of those opposed to the changes at White Cap will be a strong message, but the message will be that "those acting against the best interests of White Cap are no longer a part of our team". He could even start up some slogans like "White Cap: A great today, a better tomorrow." The only way to enact change in a traditional organization like White Cap is to stir up their patriotic loyalties to the company and convince them that these changes are truly better for the company and in turn themselves.