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.
Sample public questions
Implement the function find_roots to find the roots of the quadratic equation: ax2 + bx + c = 0. The function can assign the roots to the values pointed by root1 and root2 in any order. If the equation has only one solution, the function should assign 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, find_roots(2, 10, 8) should assign -1,-4 or -4 and -1 to the values pointed by root1 and root2 as the roots of the equation 2x2 + 10x + 8 = 0 are -1 and -4.
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.
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28 more premium Embedded Systems and C questions
Square, Descriptor, Copy Bit, Shipping, Max Sum, Init Range, Increment, Internal Nodes, Battery, Strings Pointer, Allocate String, Count Letters, Segment, Tiles, Storing Data, Smart Home, Water Level Sensor, USB, Peripheral Device, Read Write Execute, Weighted Average, Node, Racer, Sort Params, Run in Parallel, Chain Link, Paper Strip, Vectors.
Skills and topics tested
- C
- Pointers
- Memory Management
- Bit Manipulation
- Arithmetic
- Algorithmic Thinking
- Arrays
- Tree
- Language
- Pointer to Pointer
- Strings
- 2D Array
- Pass by Reference
- Embedded Systems
- Endianness
- Number System Conversion
- IoT
- Wireless Connection
- Stack Memory Allocation
- Computer Bus
- Wired Connection
- Boolean Function
- Logic Gates
- Bug Fixing
- Recursion
- Multithreading
- Synchronization
- Higher Order Function
- Pthreads
- Linked List
- Iteration
For job roles
- Back-End Developer
- C Developer
- Embedded Software Engineer
- Embedded Systems Engineer
Sample candidate report
What others say
Simple, straight-forward technical testing
TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.
Jan Opperman, Grindrod Bank
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