Samples from a real placement Test Question Paper:
There were 2 sections in the Samsung Written test.
Technical and Aptitude.
The aptitude was just repititive questions and the technical questions were a bit difficult related to electronics – electrical ECE – EE, CSE, IT and other technicals.
The main topics covered in written technical section were Datastructures, OS and Networks.
Sample network questions were from from datalink layer and network layer.
DS questions were on linkedlists,binary trees and hashing.
OS questions were on paging and schduling.
Aptitude Test Objective Questions were like: arrange sentences in order, questions based on passage and some other RS Agg apti multiple choice questions.
Technical Written Test Questions:
1. What is the size of IPv6 — 16 bytes
2. How many possible trees are there such that both preorder and postorder traversal are same if there
are n nodes in a binary tree – 0
3. 4 questions were given on error detection and control, like CRC code,hamming code etc. I think these are related to their electronics manufacturing business thats why they ask these.
4. Which protocol is used to convert the ethernet address to IP address
- RARP
5. Which is undeterministic network structure among 802.3, 802.4, 802.5
-802.4
6. Some nodes were given and they are inserted into a binary search tree, which is the root – 8
7. Given were code samples and you have to tell which one runs faster:
which of the two codes executes fast
for(i=0;i<100;i++)
for(j=0;i<100;j++)
a[i][j]=0;
for(i=0;i<100;i++)
for(j=0;j<100;j++)
a[j][i]=0
answer: first code
8. int j=3;
int *p=&j;
printf(“%d %d”, *p++,++*p);
It will not increment j value as ++ is done first on p before *, so address gets incremented and there will be a garbage value generated.
9. A couple of important questions were there on on doubly linked lists, for deleting a node
Like given some piece of code. Which one is correct?
10. A question on interrupts in OS (operating systems), what happens when a higher priority process requests the CPU
when it is servicing a lower priority process.
11. Also a question on quick sort, Few numbers are given. What happens when the first interation takes place?
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