Osmania University BCA 1st year Operating System Exam Paper

Will you please provide the BCA 1st year Operating System Exam Paper of Osmania University ?

[Kiran Chandar]

Here i am providing the list of few questions of Osmania University BCA 1st year Operating System Exam Paper which you are looking for .

1. List the 3 functions of resource management.

2. List any 3 kinds of interrupts.

3. List any 3 resources of a virtual computer.

4. Expand SPOOL.

5. The sharing of physical resources by more than 1 process is called __

6. What is the purpose of Iseek system call ?

7. provide any 1 cause for the process to get blocked.

8. Which IPC trend is more suitable for accessing and updating pass word file ?

9. List 4 necessary conditions for dead lock.

10. provide any 1 difference ranging from a process and a thread.

11. When the order of process completion does make a difference in results, the issue is called _______

12. The output of compiler is called as _______

13. List 2 types of external symbols.

14. provide an advantage of runtime dynamic linking.

15. Expand TLB.

16. _______ is an operating system process that wakes up periodically and perform operation.

17. _____is a program in execution.

18. ______is an area in a virtual address space that contains data used for 1 purpose, that is , a code module, an array or a table.

19. A _______is a synchronization primitive with 2 operations : wait and signal.

20. ____is a software that communicates with a device controller.

21. ____is a unit of transfer ranging from disk drive and main memory during a single I/O operation.

22. _____is the physical movement of read/write head in a disk system to the cylinder where the next read/write will takes place.

23. Expand FAT.

24. _______ is the activity of making sure that a user is really who he/she is.

25. List any 1 disadvantage of client - server model.

PART - B

2 a) discuss the flow of control during a system call. 6m

b) discuss what process dispatching is 4m

OR

3 a) elaborate the 3 objects the simple operating system implements and what operations are allowed on them. 7m

b) discuss the difference ranging from a program and a process 3m

UNIT -II

4. List and briefly discuss any 5 IPC trends. 10m

OR

5 a) provide any 2 examples of programs that uses threads. 6m

b) Why are semaphores more efficient than message passing ? 4m

UNIT - III

6. define the process of loading a load module for execution. 10m

OR

7. a) define the actions an operating system must take when a page fault interrupt occurs. 6m

b) define the differences ranging from linking and relocation. 4m

UNIT -IV

8. define the layout of a file system. 10m

OR

9. a) define the differences ranging from block devices and character devices.

b) discuss the purposes of a device driver. 5m

UNIT-V

10. a) List out the 4 main tasks of the resource manger. 6m

b) Write notes on access control list. 4m

OR

11 a) How do you construct a protection domain with capability lists. 6m

b) What is a distributed operating system. 4m

Can any one please provide me the B.C.A Computer Application Data Communications and Networking previous year Question Paper of Osmania University?

[Arun Vats]

Following is the B.C.A Computer Application Data Communications and Networking previous year Question Paper of Osmania University which you need

PART-A
1. Frequency of failure and network recovery time after a failure are the measures of the ___of a network.

2. In a mesh topology, if there are n devices in a network, what is the minimum number of ports that must be given in every device ?

3. Decryption and encryption of data are the responsibility of __layer.

4. provided 2 sine waves A and B, if the frequency of A is twice that of B, then the period of B is __ that of A.

5. In a frequency-domain plot, the vertical axis measures the ____.

6. ASK, PSK, FSK AND QAM are examples of ______encoding.

7. RZ encoding involves ______levels of signal amplitude.

8. The encoding method specified in EIA - 232 standard is __

9. What is the object of trellis coding ?

10. It a satellite is in geosynchronous orbit, it completes 1 orbit in _____

11. provided the subsequent info : FDM multiplexing, 5 devices, every requiring 4000 Hz, 200 Hz guard band for every device. What is the minimum bandwidth for the path ?

12. In CRC, if the data unit is 111111, the divisor is 1010, what is the dividend at transmitter ?

13. provide the hamming code for the bit sequence 11011011.

14. What is the purpose of flow control ?

15. Expand ARQ.

16. Frame acknowledgement, flow control and fault control are function of __of in HDLC protocol.

17. When data and acknowledgement are sent on the identical frame, this is called _____

18. What is difference ranging from 10 BASE2 AND 10 BASE five ?

19. DQDB is an acronym for _______.

20. Which ISDN plane is associated with signalling and D channel ?

21. X.25 protocol require fault checking at _______layer (s).

22. What is the cell size of ATM protol ?

23. If there are 5 routers and 6 networks in an internetwork, how many link state databases are there ?

24. fault control is needed at the transport layer because of potential errors occurring _____

25. DNS can find the ______ of a host if domain name is known and vice versa.

PART - B

UNIT-I

2. a) elaborate the advantages of a multipoint connection point to point ? 3m

b) List out the responsibilities of the transport layer in OSI mode. 4m

c) What is the difference ranging from bit rate and baud rate ? provide an example where they are various. 3m

OR

3. Draw the wave forms for 010011110 in every of the subsequent methods :

i) Unipolar ii) NRZ-L and NRZ-I iii) RZ iv) Manchesterv) various manchester.

UNIT -II

4. a) How does the X-21 standard handle control signals ? 5m

b)Discuss the operation of cellular telephony. 5m

OR

5 discuss the 3 various kinds of errors that occurs during the transmission and methods of fault correction.

UNIT -III

6 a) discuss CSMA/CD and it's use. 6m

b) Why and where is flow control needed ? elaborate the parameters to be considered for flow control ? 4m

OR

7 a) Compare Ethernet, Token ring and FDDI in terms of occurs method. Signaling and fault control. 6m

b) List the advantages of packet switching over circuit switching for data transmission. 4m

UNIT -IV

8. a) What does the X.25 give in the area of fault control/detection ? 5m

b) List out the services given by ISDN. 5m

OR

9 a) How is flow control handled in frame relay ? 5m

b) Draw a SONET network using all of the subsequent devices : 3 STS multiplexers, 2 add/drop multiplexers and 5 regenerators. tag all lines, parts and paths 5m

UNIT-V

10. List and discuss the application layer protocols of TCP/IP. 10M

OR

11. a) List out the functions of presentation layer. 4m

b) discuss the functions of 4 internetworking devices : repeaters ,bridges, routers and gateways. 6m