SAIL Computer Science Previous Papers

Will you please provide me question paper for SAIL management trainee Computer Science examination as soon as possible ?

[Quick Sam]

Here I am giving you question paper for SAIL management trainee Computer Science examination below :


1. Tn a packet switching network, packets are routed from source to destination along a single path having two intermediate nodes. If the message size is 24 bytes and each packet contains a header of 3 bytes, then the optimum packet size is
(a)4
(b)6
(c)7
(d)9

2. Suppose the round trip propagation delay for a 10 Mbps Ethernet having 48-bit jamming signal is 46.4 micro seconds The minimum frame size is?
(a) 94
(b) 416
(c) 464
(d) 512

3. For which one of the following reasons does Internet Protocol (IP) use the time-to-live (TTL) field in the IP datagram header?
(a) Ensure packets reach destination m4in.com.ebozavr.com within that time
(b) Discard packets that reach later than that time
(c) Prevent packets from looping indefinitely
(d) Limit the time for which a packet gets queued in intermediate routers

4. Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between Aand B is 128 kbps. What is the optimal window size that A should use?
(a) 20
(b) 40
(c) 160
(d) 320

5. Two computers C1and C2 are configured as follows.
C1has IP address 203. 197.2.53 and netmask 255.255. 128.0.
C2 has IP address 203.197.75.201 and netmask 255.255.192.0.
Which one of the following statements is true?
(a) C1 and C2 both assume they are on the same network
(b) C2 assumes Cl is on same network, but C1 assumes C2 is on a different network
(c) C1 assumes C2 is on same network, but C2 assumes C1 is on a different network
(d) C1 and C2 both assume they are on different networks

6. Station A needs to send a message consisting of 9 packets to Station B using a siding window (window size 3) and go-back-n error control strategy. All packets are ready and immediately available for
transmission. If every 5th packet that A transmits gets lost (but no acks from B ever get lost), then what is the number of packets that A will transmit for sending the message to B?
(a)12
(b)14
(c)16
(d)18

7. For the given connection of LANs by bridges, which one of the following choices represents the depth first traversal of the spanning tree of bridges?
(a) B1,B5,B3,B4,B2
(b) B1,B3,B5,B2,B4
(c) B1, B5, B2, B3, B4
(d) B1,B3,B4,B5,B2

8.The micro instructions stored in the control memory of a processor have a width of 26 bits. Each micro-instruction is divided into three fields: a micro-operation field of 13 bits, a next address field (X), and a MUX select field (Y). There are 8 status bits in the inputs of the MUX.

How many bits are there in the X and Y fields, and what is the size
of the control memory in number of words?
(a)10,3,1024
(b) 8, 5, 256
(c) 5, 8 , 2048
(d) 10, 3, 512

9. A hard disk with a transfer rate of 10 M bytes/second is constantly transferring data to memory using DMA. The processor runs at 600 MHz, and takes 300 and 900 clock cycles to initiate and complete DMA transfer respectively. If the size of the transfer is 20 Kbytes, what is the percentage of processor time consumed for the transfer operation?
(a)5.0%
(b)1.0%
(c)0.5%
(d) 0.1%

10. A 4-stage pipeline has the stage delays as 150, 120, 160 and 140 nanoseconds respectively. Registers that are used between the stages have a delay of 5 nanoseconds each. Assuming constant clocking rate, the total time taken to process 1000 data items on this pipeline will be
(a) 120.4 microseconds
(b) 160.5 microseconds
(c) 165.5 microseconds
(d) 590.0 microseconds

11. Which one of the following is true for a CPU having a single interrupt request line and a single interrupt grant line?
(a) Neither vectored interrupt nor multiple interrupting devices are possible
(b) Vectored interrupts are not possible but multiple interrupting devices are possible
(c) Vectored interrupts and multiple interrupting devices are both possible
(d) Vectored interrupt is possible but multiple interrupting devices are not possible

12. Normally user programs are prevented from handling 110 directly by I/O instructions in them. For CPUs having explicit I/O instructions, such I/O protection is ensured by having the I/O instructions privileged. In a CPU with memory mapped I/O, there is no explicit I/O instruction. Which one of the following is true for a CPU with memory mapped I/O?
(a) I/O protection is ensured by operating system routine(s)
(b)I/O protection is ensured by a hardware trap
(c) I/O protection is ensured during system configuration
(d) I/O protection is not possible

13. What is the swap space in the disk used for?
(a) Saving temporarily html pages
(b) Saving process data
(c) Storing the super-block
(d) Storing device drivers

14. Increasing the RAM of a computer typically improves performance because
(a) Virtual memory increases
(b) Larger RAMs are faster
(c) Fewer page faults occur
(d) Fewer segmentation faults occur

Solutions:
1 d
2 d
3 b
4 b
5 c
6 c
7 a
8 a
9 d
10 c
11 b
12 a
13 b
14 c

SAIL Computer Science Papers
SAIL Computer Science and Engineering all tech from comp science.


All Technical questions were from object oriented programming, Dbms and Computer networks & OOps.


SAIL Technical (Section 1) 100 marks, 0.25 negative for every wrong answer.
1. main()
{
Printf("main");
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

28. Why NAND gate is called universal gate.
a. Using this, all other gates can be realised
b. This is largely used
c. etc etc

29. 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

30. One numiraical to find out the number of address bit from the 32 segments of 1MB memory location

31. What comes previous to this 10000
a. 1111 (binary) b. FFFF (hex) c. 7777 (Oct)

32. Questions related to full binary tree to find the number of nodes in leaf

33. What does parity bit
a. Error detect b. Header c. Trailer

34. How to create and interface in C++
a. by virtual functions
b. by abstract class/method
c. by creating the class using "interface" keyword

35 What is for namesapace used in C++
a. To resolve the name clashing
b. To create different name etc

36 Language which support diamond inherritance
a) C++ b) Java c) Both a and b d) None

37Dbms
Some basic sql functions like trunc some questions from Oracle in C.N

38 All of them basic questions

39 Diff b/w hub and switch?

40 What happend to header of packet if routed from bottom to top layer etc.

41What will be output of the following-
main()
{
printf("tim");
main();
}
42 (a) tim (b) keep printing tim (c) black screen (d) none


43 In which Data structure insertion and deletion is not possible in middle but at ends.
(a) Linked list (b)Pointer Array (c) Queue (d) Dqueue.

44 bOSI Model consist of how many Layer

45 Why NAND gate is called universal gate?

46 Which of the following not supported by C++
(a) Encapsulation (b) Abstraction (c) Reflection (d) Inheritence

47 Which of the following support Diamond Inheritence
(a) C++ (b) Java (c) C (d) none

48 Suppose X is a class and arg is parameter then What is syntax of passing parameter in a copyconstructor
(a) X(X arg) (b) X(X *arg) (c) X(X &arg) (d)none

49 What is difference between Hub and Repeater?

50 If there are 6 input to a Nand Gate the how many column will bw there in Full addre table?

51 Which of the following is a DDL statement
(a) Delete (b) Turncate (c)Both a and b (d) none

SAIL Section -2 general Awareness questions

1Who have desinged the Symbol of Indian Rupee?

2Where is Jim Nationa Corbet park in India?

3 Who have got the Rajiv Khel ratan award of 2010?

4 In which state of India Population density is very High?

5 olympic 2010 held in------london

6 Currency of Bhutan-------NUGULTRAM

7 Measles is a type of--------VIRUS

8 Heart beat of Adult---------72

9 Heavy, strongest and long bone of body------FEMUR

10 JIm Corbet national park-------------Uttarnchal

11 Rupess symbol designed by-------D. UDAY KUMAR

12 Durand line is Between--------pak & afganistan

13 Winner of 20-20 world cup-----------england

14 winner of Rajiv gandhi khel rattan award-2010---------saina Nehwal

15 which river falls in arbian SEA--------------tapi

16 BIHU is a folk dance of-----------assam

17 budh name------------sidhart

18 brahm smaaj----------raja ram mohan roi

19 company related to insurance---------------IRDA

20 gadar movement telated with------------------hardyal singh

21 new member of SAARA------------------afganistan

22 olive branch signify----------------------PEACE

23 language under 8th schedual----------------22

24 alpha keratin protien present in-------------------FIBER

25 Which state receieve winter rainfall by western disturbance------Tamilnadu


22) equality of oppertunity of all citizen in matter of public employement come under------ART 16


23) Kailasa temple-----------ajanta


24) EX-office planning commision------------Prime minister


25) Most dense populated state.................UP

Hello sir I want to prepare for SAIL Computer Science so here can you please give me Previous Papers ?

[Shaleen]

Hey as Steel Authority of India Limited is one of the largest state-owned steel making company based in New Delhi, India

Here I am giving you SAIL Computer Science Previous Papers


1. main()
{
Printf("main");
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

28. Why NAND gate is called universal gate.
a. Using this, all other gates can be realised
b. This is largely used
c. etc etc

29. 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

30. One numiraical to find out the number of address bit from the 32 segments of 1MB memory location

31. What comes previous to this 10000
a. 1111 (binary) b. FFFF (hex) c. 7777 (Oct)

32. Questions related to full binary tree to find the number of nodes in leaf

33. What does parity bit
a. Error detect b. Header c. Trailer

34. How to create and interface in C++
a. by virtual functions
b. by abstract class/method
c. by creating the class using "interface" keyword

35 What is for namesapace used in C++
a. To resolve the name clashing
b. To create different name etc

36 Language which support diamond inherritance
a) C++ b) Java c) Both a and b d) None

37Dbms
Some basic sql functions like trunc some questions from Oracle in C.N

38 All of them basic questions

39 Diff b/w hub and switch?

40 What happend to header of packet if routed from bottom to top layer etc.