ST MIcroelectronics Important Technical Question Paper

ST Microelectronics Placement Paper Recruitment Job Test on 15th November

PART- A
a. Some Aptitude questions

Basic computer hardware and electronics questions:

b. Virtual memory Vs physical memory

c. Whats the role of Cycle stealing and hows it related to DMA?
d. Where are Conditional operations stored? (flag seg)
e. About Stack of heap
f. Electronics basic: About charging of MOS transistor
g. How does current get changed with change in
h. Tell about the Time constant of RL network
i.One more question on RL network
j. A K Map is given and solve the question.
k. W/L relation is provided. Find the value of resistance of MOS Transistor.

PART - 2

1. A Question on counters

2. Find the 2's Complement of a number.

3. What is the maximum operating frequency of a sequential network (166.66 MHz)

4. Microprocessor question
5. Here is a sampling related question where you have to find out the frequency component in the O/P. Sampling is done at 210 Hz of a signal containing 50, 100 & 150 Hz signal. Then the signal is passed there a LPF of 10.5 Mz cut off frequency. What is the freq component of the output?
6. A question on a consolidated current source
7. You have to find out the Signal to Noise Ratio or SNR & bandwidth in the question.

Also a question of multivibrators using 55513 and on transmission lines. These are mostly B.tech electronics branch related questions.

ST Microelectronics Placement Paper Pattern

ST Microelectronics 2006 Job Paper Pattern:

Here is the previous ST Micro placement paper procedure or employment test pattern.
First is the written test:
Questions are from DBMS, Unix basics, reasoning and basic Quantaitive aptitude

GD - Group Discussion:
The topic given to our group of 8 was "Who is responsible for Bugs in Software?"

Technical Interview:
This is an important part of the recruitment process.
Important topics for you: DBMS, Unix and C language

Next part of ST Microelectronics placement test is HR Interview.

Second HR: This is a tough part. You should not do any mistakes here after clearing 4 parts.
All types of questions can be asked.

In many university campus placement papers or recruitment tests, there are three types of question papers provided:
IT (For MCA students)
Embedded Software for B.Tech / BE CSE and ME/Mtech CS
Hardware for BTech / BE ECE engineering branch and ME/MTech ECE

Some technical written test sample questions are given below:
1. Int *p;
P=(int *p)malloc(100);
What is sizeof(p), sizeof(*p)

2. A question on Quick Sort

3. Piggy Backing is For?

4. In POP operation of Microprocessor how does it process the instruction?
Answer: It pops the instruction and decrements the stack pointer. You can see microprocessors and ece questions here.

A boolean expression related problem.

Where does Global, Local and static variables of a program lie?

Three question on hardware.