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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
UDP protocol is a means of transporting data in an unreliable (but speedy) manner. Packets are sent without regard for listening to see if they arrive.
The header of a UDP packet is much smaller than a TCP header because it doesn't have all of the overhead that TCP has, namely, checking for packet receipt, error detection and correction, flow control, etc.
Discuss the meaning what terms control frame management frame and data frame?
Management frames are those involved in association and reassociation, such as the probe and beacon frames. Control frames are those related to medium access and data delivery, such as the ACK and RTS/CTS frames. Data frames are those that carry the data sent between stations.
the most simple answer is: they probably just couldn't get rid of them!. To get computer hackers out of a network once they've broken in is hard, especially if you are a large computer company like Microsoft that cannot simply shutdown their computers until the hackers go away. Microsoft engineers would have had to either re-encrypt all of their drives (which would take several days) or counter-attack by hacking in to the offending computers which, again, may take several days, depending on the skill of the hackers.
The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC
What class has subnet mask 225.225.225.0?
If this is a default subnet mask, then it would be a class C subnet mask. If you are subnetting a network and this is not the default subnet mask, then it could be either a class A or class B.
What is the difference between data bus and normal cable?
Data bus moves data inside your computer. Normal cable moves data external. Data buses are parallel and most network media is serial. Some media is also analog where as the data bus passes data digitally. There are many differences but to be more specific would depend on which 'normal cable' you are referring too.
Expand rtp rtcp and rtsp in computer networks?
please give the answer for this question (ie) expand RTP , RTCP and RTSP
What will happen when a SINGLE connection to one of the network hosts in a full mesh network fails?
Nothing should happen; that is reason you have fully redundant links, in case a link fails.
A (address) Maps a host name to an IP address. When a computer has multiple adapter cards or IP addresses, or both, it should have multiple address records.
What ip address will be placed in the source address in an internet pa?
The source address contains the IP address of the computer (or other host) that sends the IP packet.
The source address contains the IP address of the computer (or other host) that sends the IP packet.
The source address contains the IP address of the computer (or other host) that sends the IP packet.
The source address contains the IP address of the computer (or other host) that sends the IP packet.
What is wireless and not wireless router?
A wireless only router sends out a radio signal to all the devices, B, G and N bands. The computer/devices have to have a wirless card/dongle to work though. It only has the one ethernet port for the modem to connect to it.
A Wired only router is one that only has ethernet ports connecting it to the computers/devices. There is no radio transmitter in it.
Most routers have both now, usually 4 ethernet ports and the wireless radio as one, so you can connect wireless or wired devices to the router at the same time.
An example world be my older tower doesn't have a wireless card and I don't want to buy a USB wireless device so I can just use the ethernet cable to connect to the router while my Laptop connects wirelessly.
Shifting to the right won't accomplish anything. To find the class of the address, look at the first octet in the address. You can either look for the range of addresses for a class, or look at the first 3 bits in the first octet:
First octetAddress Class0-127Class A128-191Class B192-223Class C224-239Class D240-255Class E
0nnnnnnn. First octet class A range (first bit is 0)
10nnnnnn. First octet class B range (first bits are 10)
110nnnnn. First octet class C range (first bits are 110)
It is easiest just to look at the range.
What is the difference between PPP and HDLC?
Differences between HDLC and PPP are
- (1) HDLC is cisco proprietary while PPP is an open standard.
- (2) HDLC does not provide authentication while PPP provides authentication like PAP and CHAP.
- (3) HDLC does not support compression while PPP support compression.
- (4) HDLC supports synchronous networks only while PPP supports both synchronous and asynchronous networks.
What is the center of your computer?
The centre of any computer - is the CPU (central processing unit).
Where do startup-config and a running-config reside in Cisco equipment?
startup-config resides in NVRAM and running-config resides in RAM.
Why should someone use metal cable ties?
Individuals may use metal cable ties for a variety of different reasons. One reasons would be the following: to bind loose objects together (eg. branches).
Where can one purchase industrial Ethernet switches?
One can purchase industrial Ethernet switches in many electronic stores. The Office Depot provides these industrial Ethernet switches to their customers.
What is the difference between speaker cables and instrument cables?
Speaker cables may not necessarily need shielding if legnths are kept short.
Istrument cables are shielded and kept to short stadardized lengths to prevent the introduction of noise which would affect the accuracy of the test reading.
Can fiber optic cable be installed near medium voltage cables?
Since light can't be affected from any electromagnetic field, then sure!
