Embedded Systems and C Online Test
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The Embedded Systems and C online test assesses candidates' knowledge of embedded systems and the C programming language.
It's an ideal test for pre-employment screening. A good embedded systems/software engineer needs to know how to design, develop, test, and maintain embedded systems. They need to be familiar with hardware used for embedded systems, technologies used for connecting embedded devices and know how to develop software required to run the system using the C programming language.
This online test requires candidates to answer multiple-choice and fill the blanks questions about hardware and software used in embedded devices, and to solve coding problems in C.
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Free Sample Questions for Embedded Systems and C Test
Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.
Quadratic Equation
Implement the function find_roots to find the roots of the quadratic equation: ax2 + bx + c = 0. If the equation has only one solution, the function should return that solution as both roots. The equation will always have at least one solution.
The roots of the quadratic equation can be found with the following formula: 
For example, the roots of the equation 2x2 + 10x + 8 = 0 are -1 and -4.
Bluetooth
A car company plans to extend its car computer system to offer Bluetooth connectivity with the owner's mobile phone.
Select all correct statements about the properties of such a connection.
(Select all acceptable answers.)
Digital Circuit
You have a component which should be used as part of a signal processing device. It has four input pins, one output pin, and three slots where you can insert logical gates:
The component should have the following truth table:
| In | Out | |||
|---|---|---|---|---|
| A | B | C | D | E |
| 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 |
| 0 | 0 | 1 | 1 | 0 |
| 0 | 1 | 0 | 0 | 0 |
| 0 | 1 | 0 | 1 | 1 |
| 0 | 1 | 1 | 0 | 1 |
| 0 | 1 | 1 | 1 | 0 |
| 1 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 1 | 1 |
| 1 | 0 | 1 | 0 | 1 |
| 1 | 0 | 1 | 1 | 0 |
| 1 | 1 | 0 | 0 | 0 |
| 1 | 1 | 0 | 1 | 0 |
| 1 | 1 | 1 | 0 | 0 |
| 1 | 1 | 1 | 1 | 0 |
Choose appropriate logic gates for the component's slots to achieve the required truth table.
1st slot: __ gate
2nd slot: __ gate
3rd slot: __ gate
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Premium Questions for Embedded Systems and C Test
TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.
Question Names
These premium questions are included in this pre-built test and can be added to any multi-skill test. Please sign up for a paid plan to view the questions in detail.
Square, Descriptor, Copy Bit, Shipping, Max Sum, Init Range, Increment, Run in Parallel, Internal Nodes, Battery, Strings Pointer, Allocate String, Count Letters, Segment, Tiles, Storing Data, Smart Home, Water Level Sensor, USB, Peripheral Device, Read Write ExecuteCovered Skills
Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.
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