NPTEL Computer Architecture And Organization Assignment 9 Answer

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NPTEL Computer Architecture And Organization Assignment 9 Answer – Here All The Questions and Answers Provided to Help All The Students and NPTEL Candidate as a Reference Purpose, It is Mandetory to Submit Your Weekly Assignment By Your Own Understand Level.

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NPTEL Computer Architecture And Organization Assignment

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1 point

Which of the following statement(s) is/are false for data organized on a hard disk?

 a.A collection of tracks on various surfaces is called a cylinder.

 b.A collection of sectors is called a track.

 c.A sector is the smallest unit of data that can be transferred.

 d.None of these.

Ans  – A

1 point

For a disk rotating at 10,000 rpm, what are the maximum and average rotational delays?

 a.10 msec and 5 msec

 b.6 msec and 3 msec

 c.8.3 msec and 4.15 msec

 d.None of these.

Ans  – B

1 point

Consider a hard disk with a sector size of 1024 bytes, 5000 tracks per surface, 64 sectors per track, and 8 surfaces. Assuming 1M = 220220, the storage capacity of the disk is:

 a.2500 Mbytes

 b.1280 Mbytes

 c.2325 Mbytes

 d.None of these.

Ans  – A

1 point

Which of the following statement(s) is/are true?

 a.Solid-state drives are faster than hard disks.

 b.Solid-state drives have faster rotational speeds as compared to hard disks.

 c.Solid-state drives do not have any moving parts.

 d.Solid-state drives are volatile, whereas hard disks are non-volatile.

Ans  – All

1 point

Which of the following is/are not true for input/output ports?

 a.An output port can be designed using a parallel-in parallel-out register.

 b.An output port can be designed using a tristate buffer.

 c.An input port can be designed using a parallel-in parallel-out register.

 d.An input port can be designed using a tristate buffer.

Ans  – All

1 point

What is the typical nature of an output port in I/O device interfacing?

 a.It is a tri-state bus driver.

 b.It is a serial-in parallel-out register.

 c.It is a parallel-in parallel-out register.

 d.It is used to interface input devices.

Ans  – B

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1 point

In asynchronous data transfer, which of the following is/are true?

 a.CPU periodically checks the status of the I/O device.

 b.CPU waits until the I/O device is ready to transfer data.

 c.It is suitable for moderate to high speeds of data transfer.

 d.CPU utilization is high.

Ans  – C,B

1 point

Which of the following is true for interrupt-driven data transfer?

 a.It is faster than asynchronous data transfer.

 b.It is slower than the DMA mode of data transfer.

 c.An interrupt signal can arrive at specific times.

 d.Typically, an interrupt is acknowledged after completing the instruction being executed by the CPU.

Ans  – C,D

1 point

What is an exception?

 a.An interrupt signal sent by a device internal to the computer (e.g. timer interrupt).

 b.They are generated while an instruction is being executed.

 c.They are generated when there is some error during an I/O transfer.

 d.None of these.

Ans  – B

Suppose we want to read 5000 bytes in programmed I/O transfer mode, where the bus width is 16 bits. Each time an interrupt occurs, it takes 10 microseconds to service it (i.e., transfer 16 bits). The CPU time required to read 5000 bytes is ……………… milliseconds.

Ans  – 32

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