Embedded Systems Multiple Choice Questions and Answers

61. Which of the following can periodically trigger the context switch?

1. software interrupt
2. hardware interrupt
3. peripheral
4. memory

62. Which of the following can provide hardware handshaking?

1. RS232
2. Parallel port
3. Counter
4. Timer

63. Which of the following can simulate the LCD controllers and parallel pots?

1. memory simulator
2. sds
3. input simulator
4. output tools

64. Which of the following can simulate the processor, memory, and peripherals?

1. input simulator
2. peripheral simulator
3. memory simulator
4. cpu simulator

65. Which of the following can transfer multiple bits of data simultaneously?

1. serial port
2. sequential port
3. concurrent unit
4. parallel port

66. Which of the following consist two lines of legs on both sides of a plastic or ceramic body?

1. SIMM
2. DIMM
3. Zig-zag
4. Dual in-line

67. Which of the following contains all the task and their status?

1. register
2. ready list
3. access list
4. task list

68. Which of the following controls the time slicing mechanism in a multitasking operating system?

1. kernel
2. single tasking kernel
3. multitasking kernel
4. application manager

69. Which of the following decides which task can have the next time slot?

1. single task operating system
2. applications
3. kernel
4. software

70. Which of the following defines the set of instructions loaded into the memory?

1. process
2. task
3. thread
4. system hardware