Answer / hariprasad

In telecommunications, a circuit switching network is one
that establishes a circuit (or channel) between nodes and
terminals before the users may communicate, as if the nodes
were physically connected with an electrical circuit.

The bit delay is constant during a connection, as opposed to
packet switching, where packet queues may cause varying
packet transfer delay. Each circuit cannot be used by other
callers until the circuit is released and a new connection
is set up. Even if no actual communication is taking place
in a dedicated circuit that channel remains unavailable to
other users. Channels that are available for new calls to be
set up are said to be idle.

Ex is Trunk call between two phones(Telephone connectivity)

Packet switching is a digital network communications method
that groups all transmitted data, irrespective of content,
type, or structure into suitably-sized blocks, called
packets. The network over which packets are transmitted is a
shared network which routes each packet independently from
all others and allocates transmission resources as needed.
The principal goals of packet switching are to optimize
utilization of available link capacity, minimise response
times and increase the robustness of communication. When
traversing network adapters, switches and other network
nodes, packets are buffered and queued, resulting in
variable delay and throughput, depending on the traffic load
in the network.


Ex: Internet

tell me our traditional ip routing is what A--conectless b----conection orented c-----pacekt switching d------ckt switching slect any two this is the question which i forgot to incoprate next-questions

4 Answers  

---

When written <cr > what does it mean?

0 Answers  

---

Identify the type of hardware required to connect a Token ring network to an Ethernet network? A.) Repeater B.) TR-Enet C.) Router D.) Token Ring to Ethernet translation hub

1 Answers  

---

Which type of switching reads in the entire frame before forwarding it? A.) Pause-and -forward B.) Store-and-Forward C.) Inverse ARP D.) Fast Forward E.) Cut-Through F.) Routing

2 Answers  

---

What was the key reason the International Organization for Standardization released the OSI model? A. users could access network servers faster B. different vendor networks could work with each other C. the industry could create a standard for how computers work D. network administrators could increase the overall speed of their network

1 Answers  

---

Identify 2 features of PPP CHAP authentication? A.) Username and password is sent in clear text B.) Authentication messages are sent periodically during the connection C.) Less secure then PAP D.) Local router 'challenges' the remote router

1 Answers  

---

What is the most common layer 2 device? A. Hub B. Bridge C. Switch D. Router

20 Answers   IBM,

---

What are 10base2, 10base5 and 10baset ethernet lans?

0 Answers  

---

On which base switches take decisions?

0 Answers  

---

Which layer defines bit synchronization? A.) Application B.) Network C.) Transport D.) Physical E.) Session F.) Session

1 Answers   Rooman,

---

What utility can you use to see the path a packet takes through an internetwork? A.) Route B.) SNMP C.) Trace D.) Ping

3 Answers  

---

Which of the following provide correct information about a protocol at the transport layer of the OSI model? A.) UDP - Provides Connectionless datagrams service B.) TCP - Provides Connection Oriented Services C.) SMTP - Provides Mail Exchange D.) IP - Route determination E.) TCP - Provides Flow Control and Error Checking F.) FTP - Transfers of Files

1 Answers  

---