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IN1006 Systems Architecture (PRD1 A 2024/25)

IN1006 Systems Architecture (PRD1 A 2024/25)

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Which of the following best describes a Harvard Architecture cache?

Don't know/no answer

An arrangement where the data and instruction caches are separated.

A cache where the assignment of data items (blocks) to cache lines is determined by the last n-bits of the data item’s address.

A cache where the last n-bits of a block’s address denotes which grouping of cache lines are used.

A cache where each data item can be assigned to any block as needed.

An arrangement where data and instructions appear in the same cache.

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Which MARIE instruction is being carried out by the microoperations that follow?

M A R thin space leftwards arrow X
M B R space leftwards arrow M space left square bracket M A R right square bracket
A C thin space leftwards arrow A C space plus M B R

What are the binary and decimal representations of the hexadecimal number F4?

Binary: 11100100 Decimal: 244

Binary: 11110100 Decimal: 240

Binary: 11110100 Decimal: 244

100%

Don't know/No answer

Binary: 11110010 Decimal: 244

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Which is the best description of the principle of Abstraction?

A way of describing the software components of a computer system.

Don't Know/No answer

The concept of components interacting with their environment.

The relationship between Hardware and Software.

The concept of a layered system with information hiding.

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What is the correct result of the operation below? The initial numbers should be considered as unsigned integers. The result should be given in 2's complement. (Hint: use 2's complement arithmetic to perform the operation.)

00001111 - 00010101

Don't know/no answer

00000110

11101010

00000101

11111010

11101011

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Which of the following is the best description of ‘branch prediction’?

A method to avoid data hazards by predicting what way a conditional branch instruction will execute in advance.

Don't know/no answer

A method to avoid structural hazards by predicting the address of a branch instruction in advance.

A method to avoid structural hazards by predicting whether a conditional branch instruction will execute in advance.

A method to avoid control hazards by predicting what way a conditional branch instruction will execute in advance.

A method to avoid control hazards by predicting the address of a branch instruction in advance.

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Suppose the cache access time of a computer is 10ns and its main memory access time is 15 times slower. Assuming that the cache hit rate is 70%, what is the effective access time (EAT) for the processor to access an item in the cache?

Don't know/no answer

210ns for 30% of the times

10ns

200ns

52ns for 90% of the times.

52ns

100%

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The Higher level languages are platform independent because of?

Don't know/No answer

The syntax analysis can be rewritten for different machines.

Because it's easy to write assembler for HLL.