TCS Papers: Sample Questions 500 - 501 of 502

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Question number: 500

» Basic CS » Networks

Essay Question▾

Describe in Detail

Which layer links the network support layers and user support layers?

Explanation

  • The transport layer links the network support layers and user support layers.

  • Delivers data across network connections by providing logical communication between applications on different hosts and other network components.

  • They support a range of capabilities including error recovery, flow control, and re-transmission.

 Image of the transport layer

Image of the Transport Layer

Given the image is define the transport layer protocols

Question number: 501

» Basic CS » Networks

Essay Question▾

Describe in Detail

What is Bandwidth?

Explanation

  • Every medium has an upper limit and lower limit on the frequency of signals. This range is called the bandwidth. Another definition of bandwidth is the capacity of network communications link to transmit data from one point to another. In short bandwidth describes the data transfer rate.

  • Note that bandwidth is not a measure of network speed.

  • Bandwidth is expressed in bits per second (bps), megabits per second (Mbps), or gigabits per second (Gbps).

  • Bandwidth can be symmetrical that is data capacity is same in both directions, or asymmetrical, which means download and upload capacity are not equal.

  • In asymmetrical connections, upload capacity is typically smaller than download capacity.

Image of the bandwidth

Image of the Bandwidth

Given the image is define the bandwidth