Explore topic-wise MCQs in Embedded Systems.

This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Embedded Systems knowledge and support exam preparation. Choose a topic below to get started.

1.

Which mode of the Intel 8253 timer can generate a square wave?

A. mode 1
B. mode 2
C. mode 3
D. mode 4
Answer» E.
Discussion
2.

Which of the following are interfaced as the outputs to the parallel ports?

A. keyboards
B. switches
C. LEDs
D. knobs
Answer» D. knobs
Discussion
3.

What is the full form of SPI in Basic Peripherals?

A. serial parallel interface
B. serial peripheral interface
C. sequential peripheral interface
D. sequential port interface
Answer» C. sequential peripheral interface
Discussion
4.

What is the full form of UART in Basic Peripherals?

A. universal asynchronous receiver transmitter
B. unique asynchronous receiver transmitter
C. universal address receiver transmitter
D. unique address receiver transmitter
Answer» B. unique asynchronous receiver transmitter
Discussion
5.

Which of the following is used to reset the device in 8250?

A. MR
B. DDIS
C. INTR
D. RCLK
Answer» B. DDIS
Discussion
6.

Which is used to prioritise multiple requests?

A. dual address mode
B. single address mode
C. arbitration
D. chaining
Answer» D. chaining
Discussion
7.

Which of the following method is used by Apple Macintosh?

A. hardware handshaking
B. software handshaking
C. no handshaking
D. null modem cable
Answer» C. no handshaking
Discussion
8.

Which of the following is an ideal interface for LCD controllers?

A. SPI
B. parallel port
C. Serial port
D. M-Bus
Answer» E.
Discussion
9.

A packet is also referred to as

A. postcard
B. telegram
C. letter
D. data
Answer» C. letter
Discussion
10.

Which of the following byte performs the slave selection?

A. first byte
B. second byte
C. terminal byte
D. eighth byte
Answer» B. second byte
Discussion
11.

What is the full form of I2C in Basic Peripherals?

A. inter-IC
B. intra-IC
C. individual integrated chip
D. intel IC
Answer» B. intra-IC
Discussion
12.

How much time period is necessary for the slave to receive the interrupt and transfer the data?

A. 4 clock time period
B. 8 clock time period
C. 16 clock time period
D. 24 clock time period
Answer» C. 16 clock time period
Discussion
13.

Which of the following is also known as implicit address?

A. dual address model
B. single address model
C. 1D model
D. 2D model
Answer» C. 1D model
Discussion
14.

Which of the following has a quadruple buffered receiver and a double buffered transmitter?

A. Intel 8250
B. 16450
C. 16550
D. MC68681
Answer» E.
Discussion
15.

Which of the following indicates the type of operation that the master requests?

A. address value
B. initial value
C. terminal count
D. first byte
Answer» B. initial value
Discussion
16.

Which of the following can be described as general-purpose?

A. multifunction I/O port
B. input port
C. dma port
D. output port
Answer» B. input port
Discussion
17.

Which signal allows the DMA controller to select the peripheral?

A. local peripheral control
B. global peripheral control
C. address bus
D. data bus
Answer» B. global peripheral control
Discussion
18.

Which of the following combine an MC68000/MC68020 type of processor with peripheral and DMA controllers?

A. Intel 8237
B. Intel 8253
C. MC68300
D. MC68000
Answer» D. MC68000
Discussion
19.

Which of the signal can control bus arbitration logic in 8250?

A. MR
B. DDIS
C. INTR
D. RCLK
Answer» C. INTR
Discussion
20.

Which ports are used in the multi-master system to avoid errors?

A. unidirectional port
B. bidirectional port
C. multi directional port
D. tridirectional port
Answer» C. multi directional port
Discussion