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

What is an administrative distance of 0 mean? A.) 0 means unbelievable B.) 0 is for EIGRP C.) 0 is the default distance for directly connected networks D.) 0 means unreachable

2 Answers  

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What does vlan provide?

0 Answers  

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Which three of the following are true statements about connection-oriented sessions? A.) The segments delivered are acknowledged back to the sender upon their reception B.) Any segments not acknowledged the are retransmitted by the receiver C.) A manageable data flow is maintained in order to avoid congestion, overloading and loss of any data D.) Segments are sequenced back into their proper order upon arrival at their destination

1 Answers  

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What is the difference among straight cable, cross cable and rollover cable?

0 Answers  

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Station A is transmitting data to station B faster that station B can handle it. When station B's buffer fills up, it send out a message to station A to stop sending data. After B empties out its buffer, station B sends a message to station A to start sending data again. This is most directly an example of (pick the best answer only): A.) Poison Reverse B.) Connectionless protocol C.) Windowing D.) Connection oriented protocol E.) Flow Control F.) Split Horizon

1 Answers  

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Can you explain PAP?

0 Answers   CCIE,

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Identify 3 methods used to prevent routing loops? A.) Split horizon B.) Holddown timers C.) Poison reverse D.) SPF algorithm E.) LSP's

2 Answers  

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how many pass word you can configure on cisco 2500 router

3 Answers   HCL,

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Given the IPX address 4a.0002.1111.a999, what is the network ID and what is the node ID? A.) net 4a host 0002.1111.a999 B.) net a999 node 0002.1111 C.) net 0002.1111.a999 node 4a D.) net 0002.1111 node a999

1 Answers  

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When we do default route?

0 Answers  

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Identify 3 characteristics of a MAC address? A.) Burned into the NIC B.) 48 bits long C.) Length is 32 bits D.) Used to deliver the frame to the end device E.) Contains a network portion and a host portion

2 Answers  

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Can you explain static and dynamic tunnels?

0 Answers   CCIE,

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