IV-B.Tech IT-A-SVECW-BVRM

Distributed Systems

Assigemennt-II  

submit on or before 28/2/2017

SET-1( Roll No:131AB01201-131AB01222)

1.a) Explain architecture of server threads. Give its applications.

   b) Write about invocation and address space.

2. a) Explain and summarize Napster and its legacy with respect to distributed   file system.

    b) Explain sun network file system.

3. Write about bully algorithm and summarize how it is different from other

    election algorithms.

4.  a) Explain about locking in strict two phase locking.

    b) Write about distributed deadlocks. How to prevent deadlocks in distributed

    systems.

 SET-2( Roll No:131AB01223-131AB01243)

 

1. Explain processes and threads with  examples.

2. a) Distinguish between IP and overlay routing for peer to peer applications.

   b) Discuss about overlay routing.

3. a) What are the features required for election algorithms.

     b) What meant by total ordering and where it is used.

4.  Discuss in detail about distributed deadlock and transaction recovery.

SVECW-III-IT-B UNIX PROGRAMMING

Assignment-3(UNIT-3)

 Submit on or before 1/2/2017

SET-1 (1261-1280)

1. Discuss in detail about various directory handling system calls.

2. Distinguish between stat and fstat system calls.

3. Explain getchar and putchar system calls.

SET-2 (1281-12A0)

1. Explain the following system calls.

a) symlink b)unlink c)chown d)octal

2. Give brief description about the low level file I/O.

3. Describe the formatted input and output functions.

SET-3 (12A1-12C0,47)

1. Explain the importance of dup command in UNIX and also explain the various forms of it with suitable example.

2. Explain the following system calls

a) fflush b)fgetc c)getc d)getchar

3. Write about system calls, library functions and low level file access functions with examples.

IV-IT-A-SVECW

Distributed Systems 

Assignment -I 

submit this on or before 27.01.2017

Set-1

1.What is architecture model.Explain different varients in architecture model?

2.What is inter process communication.Explain characteristics of inter process communications?

3.Write a short notes on 

 a)Stream communication.      b)UDP coomunication.

Set-2

1.What is distributed system?Explain the goals and challenges of distributes system?

2.Explain briefly about external data representation and marshelling?

3.Explain about client server communication?

 UNIX PROGRAMMING 

Assignment-1(UNIT-1)
SET-1
1. Explain about the features of UNIX.
2. Explain the following commands with suitable examples.
Umask, chmod, mkdir, rmdir, sort, cp
SET-2
1. Explain in detail about file permissions and process utilities.
2. Explain in detail about backup utilities.
SET-3
1. Explain in detail about disk utilities and text processing utilities.
2. Explain in detail about UNIX file system with neat diagram.


Assignment-2(UNIT-2)
SET-1
1. Write a shell program for file contains records. Each record containing name and city, name of state and name of country. How would you sort this file with country as the primary key and state the secondary sort key.
2. Write a shell script which counts the number of lines and words present in a given file.
3. Write a shell script that copies multiple files to a directory.
4. Implement a shell script to show that the given number is even or odd?
SET-2
1. Write a shell script which displays the list of all files in the given directory.
2. Write a shell script (small calculator) that adds, subtracts, multiplies and divides the given two integers. There are two division options: one returns the quotient and the other returns reminder. The script requires 3 arguments: The operation to be used and two integer numbers. The options are add
 (-a), subtract(-s), multiply(-m), quotient(-c) and reminder(-r).
3. Write a shell script to reverse the rows and columns of a matrix.
4. Write a shell script to show the given strings and numbers are equal or not?

Roll Numbers for sets

SET1:

13B01A1246,50,51,53,60,63,71,77,78,83,84,85,86,13B01A1244,47,48,49,52,54

SET2:

13B01A1245,56,57,59,62,64,65,66,68,72,73,75,76 ,55,61,69,70,74,80,82,10-64

CNS Important Questions

UNIT-4

1. Explain key management and distribution in detail.

2. Define  Message Authentication code. Explain its functions and basic uses.    

3. Describe the steps in message digest generation in Secure Hash Algorithm in detail.

4. Explain the Digital Signature Algorithm

UNIT-5

1. Explain how email messages are protected using S/MIME signing and encryption?

2. Describe the services provided by PGP

3. Describe about SSL secure communication and SSL authentication.

4. Explain how authentication is performed in Kerberos.

UNIT-6

1. Define intruder. Explain the Intrusion detection System in detail

2. Briefly describe encapsulating a security payload.

3. Briefly describe various approaches for IDS/IPS.

4. Draw and discuss the Architecture of IPSec

CNS Assignment II questions

Submit on 24.10.2016

ASSIGNMENT-2    SET  - 1

1. Explain key management and distribution in detail.

2.   Explain how email messages are protected using S/MIME signing and

      encryption?

3. Briefly describe encapsulating a security payload.

ASSIGNMENT-2    SET  - 2

1. Describe the steps in message digest generation in Secure Hash Algorithm in

detail.

2. Explain how authentication is performed in Kerberos.

3. Briefly describe various approaches for IDS/IPS.