0
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
window size
Yes. Actually we can communicate with ZigBee module through UART. So UART itself is a full Duplex communication. So we can use ZigBee for full Duplex communication.
What is a computer programmed to act like an IP telephone is known as?
softphone... and stop cheating lol
What is home agent and foreign agent?
The home agent is usually a router attached to the home network of the mobile host. The foreign agent is usually a router attached to the foreign network.
What could be suitable topic for group discussion for Store Keeper?
maybe a question, like "what might the shop keeper feel during a robbery?" or "what is the average amount does the shop keeper make in a week?"
What hours they work
What is their job REALLY like
How can you progress in that career
What are the pitfalls of being a shop keeper
What is a purpose of of the physical layer in data communication?
to convert a frame into a series of signals to be transmitted on the local media
Twisted-pair cables are made out of copper, they are shielded with plastic to prevent electromagnetic interference but the actual cable is made out of copper.
farming. Example: 3D animation movie companies buy computer power on a 'render farm'.
Router
Which of the following network components are typically capable of functioning as DHCP relay agents?
Router & Win 2008
Are both UDP and IP unreliable to the same degree?
When IP sends a packet, it receives a confirmation for each packet and, if needed, rebroadcast the packet. This makes it reliable. UDP does not get confirmation. It broadcast each packet only once and assumes that it get to you. This makes it less reliable then IP because it does not check for problems or rebroadcast.
What layer of osi model does vlan operate?
VLAN's, or virutal local area networks, appear at the application level or Level 7 o the OSI model. VLAN's use tagging or pot+tagging to route traffic to and from a specific area (like a specific departement in a business). VLAN technology relies on ethernet connectivity throughout the network it functions on (a more ubiquitious medium than standard trunking and TCIP, etc).
VLAN's require an edge switch to tag the outgoing traffic and recieve the incomming traffic and allows you to prioritize traffic (tagged v/s untagged) so you can provide services like ip telephony, video sessions, SIP, etc.
What is the advantage of using a layer 3 switch in the core of a campus network?
The speed at which it establish a network connection.
dhcpnack is message from dhcp server when dhcp server is not having any ip left in address pool or client fails to respond to offer in given time
