SAIL Placement-Paper

Hi Guys,

This is Biplab from Kolkata, I have attended the SAIL exam for Computer science on 12th December, 2010. In gyst I felt that the questions for technical (section -1) and general (section 2) both were very easy. However the time management is very very important to attain atleast 4/5 of questins. I don’t remember much of the questions and here I am listing few of what I can recall. Appologies as not having the accurate sentences as given in paper and any typos
Technical (Section 1) 100 marks, 0.25 negative for every wrong answer.
1. main()
What is the output ?

2. Which one is the OOP language
a. Small talk, b. Pascal. c. Basic
3. Which is not the featues of OOP
a. Reflection  b. Encapsulation, c. Abstraction d. Inheritence
4. What is the typed language of C++
a. Static b. Dynamic c. Link-binding
5. Which property of OOP makes let the user know only the functinality of method but not the detail how it is working
a. Abstraction b. Encapsulation c. Inheritence
6. How you define abstract class in C++
a. Using abstract mentod b. By writing keyword “abstract”. c etc
7. Which one is the two way linked list
 a. Circular linklist  b. Node having header and trailer in the list C. Array
8. Which one uses the indexing
a. Linklist  b. Arrays  c. Stack  d. Queue
9. Which is having many to many mapping
a. graph, b. tree, c. stack etc
10. Which one is not the behaviour of binary search
a. Deletion of any node. b. comparing with the middle value. etc
11. When data moves from lower layer to upper layer in OSI then what happens to headed
a. Removed b. Added.
12. What is called packets in network layer
a. Datagram b. Frame. etc
13. What switching is used in conventional land line
a. Packet b. Circuit. etc
14. What scheduling algo is used for real time OS
a. Round robin b. FIFO. c. Pre-emptive. etc
15. How many layers are there in OSI model
a. 7  b. 8  c. 6 etc
16. Repeaters work in which layer
a. Datalink b. physical c. Network etce
17. Process to process communication happens in layer
a. Session b. Transport  c. Application d. Network
18. Which one is not in application layer
a. FTP b. TFTP. c. Virtual network terminal. 
19. Which one return the acknowledgement
a. UDP. b. TCP etc
20. Which one is DDL
a. Trancate b. Delete c. Both d. None
21. Which one is true/false for using indexing in data base
a. Slow b. Fast C More space
22. Four DML given to find out the where indexing need not be used.
23. Which one create the deadlock
a. Mutex  b. Semaphore c. Hold and wait

24. One numirical to find out the effective average access time where the cache and RAM memory speed given with hit/miss percentage
25. Which one do not require the context switcing
a. General registers b. PC. c. Look aside table buffer
26. What is the size of address location for 8085
a. 1MB b. 128kb c. 64KB etc 

27. What is the layer where the user comes in picture
a. Session b. Application c. Transport d. Network
29. Why NAND gate is called universal gate.
a. Using this, all other gates can be realised
b. This is largely used
c. etc etc
30. For 3 bits adder, what is the number of adder required
a. 2 full adder& 2 half adder b. 3 full adder and one half adder etc
31. One numiraical to find out the number of address bit from the 32 segments of 1MB memory location
32. What comes previous to this 10000
a. 1111 (binary) b. FFFF (hex) c. 7777 (Oct)
33. Questions related to full binary tree to find the number of nodes in leaf
34. What does parity bit
a. Error detect b. Header c. Trailer
35.  How to create and interface in C++
a. by virtual functions
b. by abstract class/method
c. by creating the class using “interface” keyword
36. What is for namesapace used in C++
a. To resolve the name clashing
b. To create different name etc
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