<p>Question No. 1:<br /><br />a. Suppose architecture A has 14-bit address bus.

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<p>Question No. 1:<br /><br />a. Suppose architecture A has 14-bit address bus. What is maximum size of memory that can be accessed in this architecture? (Show the steps for calculating maximum accessible memory) (5 marks)<br /><br />b. An architecture B has a maximum limit of 2GB memory. How many address bits are required for this architecture? (Show the steps for calculating required number of address bits) (5 marks)<br /><br /><br /><br />Question No. 2:<br />What are the first and the last physical memory addresses accessible using the following segment values? (2 mark each)<br />a. 0000<br />b. FFFF<br /><br /><br />Question No. 3:<br /><br />Calculate physical address using the following segment offset pairs. <br />(1 mark each)<br />a. ABCD:1234<br />b. 1234:ABCD<br /><br />Question No. 4:<br /><br />What is effective address generated by the following instructions? Every instruction is independent of others. Initially BX = 0xFF00, SI=0x00FF <br />(1 mark each)<br /><br />a. mov ax, [BX+SI]<br />b. mov ax, [BX+1024] (1024 is in decimal)<br /><br />Question No. 5:<br /><br />What are the contents of memory locations 720, 721, 722 and 723 if the word 4321 is stored at offset 720 and the word 8765 is stored at the offset 722 using Big Endean format? (2 marks)<br /><br />Address Contents<br />&#8230; <br />0x720 <br />0x721 <br />0x722 <br />0x723 <br />&#8230;</p>

Explanation / Answer

it's really hard to understand the questions because of your html codes but the answer to the first question is The maximum amount of memory usable by the instance is determined at instance startup by the initialization parameter SGA_MAX_SIZE. [ You can specify SGA_MAX_SIZE to be larger than the sum of all of the memory components, such as buffer cache and shared pool. Otherwise, SGA_MAX_SIZE defaults to the actual size used by those components. Setting SGA_MAX_SIZE larger than the sum of memory used by all of the components lets you dynamically increase a cache size without needing to decrease the size of another cache. ]

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