Directorate of Online Education
INTERNAL ASSIGNMENT SET-II
SESSION FEB/MAR
2021
PROGRAMME MASTER
OF COMPUTER APPLICATION (MCA)
SEMESTER I
COURSE CODE & NAME DCA6105
- COMPUTER ARCHITECTURE
CREDITS 4
NUMBER OF ASSIGNMENTS,
CREDITS &MARKS 02
4 Credits, 30 Marks each
Question 1 What do you
understand by pipelining? Discuss with an example the different hazards
possible with pipelining?
Answer An implementation technique
by which the execution of multiple instructions can be overlapped is called pipelining.
This pipeline technique splits up the sequential process of an instruction
cycle into sub-processes that operates concurrently in separate segments. As
you know computer processors can execute millions of instructions per second.
At the time one instruction is getting processed, the following one in line
also gets processed within the same time, and so on. A pipeline permits
multiple instructions to get executed at the same time. Without a pipeline,
every instruction has to wait for
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Question 2 What do you
understand by multithreading? Discuss the principles of multithreading?
Answer Multithreading: Multithreading is another method for reducing or hiding latency.
Multithreading is a process which is very common in modern computers. Basically
it is multi-programming in which several processes can run at the same time. If
we want the switching process to be speedy then we have to provide each process
a memory map and hardware registers. Now if one process blocks while waiting
for remote data, then
the switching can
Question 3 Discuss the various types of Vector
Instructions for a register- register vector processor.
Answer Types of Vector
Instructions: The various types of vector
instructions for a register-register vector processor are:
.
Q. 1 (a) Discuss the continuity of the function (𝑥)=
at x=a.
f(x) = 
at x = a
f(a) = 
Q. 1 (b) Evaluate 
.
Let 
= t ⇒ x = t2 so that dx = 2t dt
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Q 2 (a) If 
prove
that, 
.
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Q. 2 (b) Multiply 3 + 4i by
7 – 3i.
= (3 + 4i) (7
– 3i)
= 21 – 9i +28i
– 12i2
Q. 3 (a) If 
where, v is the region bounded by the
surfaces x = 0, y = 0, x = 2, y = 4, z = x2, z = 2.
= 
Q. 3 (b)
Evaluate, using the properties of determinant.
R3→
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Q. 1(a) Explaingoto statement with example.
The goto statement is rarely used
because it makes program confusing, less readable and complex. Also, when this
is used, the control of the program won’t be easy to trace, hence it makes
testing and debugging
Q. 1(b) Explain nested if statement.
When an if else
statement is present inside the body of another “if” or “else” then this is called
nested if else.
Q.2 (a) What is a function? How can you declare a
function? Explain with example.
A function is a block
of statements that performs a specific task. Let’s say you are
writing a C program and you need to perform a same task in that program more
than once. In such case you have two options:
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Q. 2(b) What is recursion? Give an example of recursion.
Recursion is the process of repeating items in a
self-similar way. In programming languages, if a program allows you to call a
function inside the same function, then it is called a recursive call of the
Q. 3(a) What do you understand by storage class?
A storage class defines the scope (visibility) and life-time of
variables and/or functions within a C Program. They
Q. 3(b) What is static storage class? Write a program to generate Fibonacci numbers using static variables.This storage class is used to declare static variables which are popularly used while writing programs in C language. Static variables have a property of preserving their value even after they are out of their scope! Hence, static variables preserve the value of their last use in their scope. So we can say that they are initialized only once and exist till the termination of the program. Thus, no new memory
Q. 1 What do you
mean by Adaptive Query Processing (AQP) and what is the role of Eddy in AQP?
What categories of complexities are encountered while implementing AQP?
Adaptive Query Processing analyzes
actual query run time statistics and uses that information for subsequent
optimizations.
With rapidly increasing amounts of data, the price of miscalculating complex plans can result in dramatic performance problems. These problems might be measured in minutes or hours instead of seconds or minutes. Traditionally, optimizer architecture has attempted to overcome
Q.2 What are the properties that a
transaction must have in an Online Transaction Processing System (OLTP) and
what are various types of locks used for implementing concurrency control among
cooperating transaction?
OLTP is an operational
system that supports transaction-oriented applications in a 3-tier
architecture. It administers the day to day transaction of an organization.
OLTP is basically focused on query processing, maintaining data integrity in
multi-access environments as well as effectiveness that is measured by the
total number of transactions per second. The full form of OLTP is
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Q.3 Explain the objectives, advantages and
disadvantages of Parallel Databases in modern transaction processing systems?
What are various multiprocessor architectures used to support parallel
databases.
A
variety of hardware architectures allow multiple computers to share access to
data, software, or peripheral devices. A parallel database is designed to take
advantage of such architectures by running multiple instances which
"share" a single physical database. In appropriate applications, a
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