Question 1 : Which signal can identify the error?
1. data bus
2. address bus
3. bus requester
4. interrupt signal
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Question 2 : Which provides an input clock for the receiver part of the UART 8250?
1. RD
2. RCLK
3. MR
4. DDIS
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Question 3 : How many bit bus does MC68230 have?
1. 2
2. 4
3. 8
4. 16
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Question 4 : Which ports are used in the multi-master system to avoid errors?
1. unidirectional port
2. bidirectional port
3. multi directional port
4. tridirectional port
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Question 5 : Which of the following registers offers high impedance?
1. data register
2. data direction register
3. individual control bit
4. data register and data direction register
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Question 6 : Which of the following timer is suitable for IBM PC?
1. IA-32
2. Intel 8253
3. Intel 64
4. 8051 timer
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Question 7 : Which of the following address mode uses a buffer to hold data temporarily?
1. 1D model
2. 2D model
3. dual address model
4. 3D model
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Question 8 : Which of the following provides an efficient method for transferring data from a peripheral to memory?
1. dma controller
2. serial port
3. parallel port
4. dual port
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Question 9 : What rate can define the timing in the UART?
1. bit rate
2. baud rate
3. speed rate
4. voltage rate
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Question 10 : Which of the signal can control bus arbitration logic in 8250?
1. MR
2. DDIS
3. INTR
4. RCLK
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