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PROGRAM
Bachelor
of Science in Information Technology - B.SC(IT)
SEMESTER
III
SUBJECT
CODE & NAME
BIT301 –
Operating System
SET 1
Qus:1 State the different operation performed by operating
system.
Answer: Operating System is a System Software (Set of system
programs) which provides an environment to the user so that they can execute
the programs or instruct the computer to do certain work i.e. provide interface
for user to communicate with the computer system. The Operating System acts as
a resource manager which allocates and manages various resources like processor(s),
main memory
Qus:2 State and explain different states of a process.
Answer: A program in execution is called a process. A process is
executed sequentially, one instruction at a time. A program is a passive
entity. For example, a file on the disk. A process on the other hand is an
Qus:3 Give an outline of the necessary conditions that leads to a
deadlock.
Answer: Deadlock
prevention algorithms ensure that at least one of the four necessary conditions
for deadlocks namely mutual exclusion, hold
SET 2
Qus:1 Discus in details about Multi-programmed Batched
Operating Systems.
Answer: The concept of spooling introduced an important data
structure called the job pool. Spooling creates several jobs on the disk ready
for execution or processing. The operating system now has to choose from the
job pool, a job that is to be executed next. This increases CPU utilization as
CPU is
Qus:2 What are the different information stored in a process
control block (PCB)?
Answer: In order to manage and coordinate the various processes, the
operating system identify these processes in terms of numbers and Process
Control Block (PCB). A Process Control Block is a data structure maintained by
the Operating System for every process. A PCB keeps all
Qus:3 Outline the steps required for deadlock prevention.
Answer: The four necessary conditions for deadlocks to occur are
mutual exclusion, hold and wait, no preemption and circular wait. If any one of
the above four conditions does not hold, then deadlocks will not occur. Thus
prevention of deadlock is possible by ensuring that at least one of the four
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
PROGRAM
Bachelor
of Science in Information Technology - B.SC(IT)
SEMESTER
III
SUBJECT
CODE & NAME
BIT302 –
Computer Networks
SET 1
Qus:1 Write a note on different network hardware by scale..
Answer: In broadcast network, communication channel is shared by all
the machines on the network. Broadcast systems allow the possibility of
addressing a packet to all the destinations by specifying a special code in the
address field. This packet is received and processed by every machine on the
network. This method of operation is called broadcasting. Few broadcast systems
also support
Qus:2 Discuss briefly about Byte-Oriented Protocols (BISYNC,
PPP, DDCMP).
Answer: This is one of the oldest approach in framing, which
consider each frame as a collection of bytes, rather than a collection of bits.
Byte-oriented approach is represented by older protocols such as the Binary
Synchronous Communication (BISYNC)
Qus:3 Elaborate about Virtual-Circuit Networks.
Answer: Networks having connection oriented services in the network
layer are called Virtual Circuit networks and these network layer connections
are called virtual circuits (VCs). Let’s now
SET 2
Qus:1 Give an outline of OSI Reference Model.
Answer: The OSI Model is based on the protocol developed by ISO
(International Standards Organization) as the first step towards international
standardization of the protocols used in the various layers. This model
Qus:2 Do a survey on Clock-based Framing (SONET).
Answer: Clock- based framing is another approach to framing, and is
represented by the Synchronous Optical Network (SONET) standard. SONET was
first proposed by Bell Communications Research (Bellcore), and then developed
under the American National Standards Institute (ANSI
Answer: IPV4 is a connectionless protocol and is unreliable. It is
primarily responsible for addressing and routing packets between hosts. A
higher layer protocol such as TCP or an application protocol must acknowledge
delivered packets and recover lost packets if required. IPV4 is defined in RFC
791. Figure shows the datagram format of IPV4. It consist of IPV4 header and
Payload. Header
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412. If
your questions not match with assignment, don’t worry we will provide by mail
according to your questions
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
PROGRAM
Bachelor
of Science in Information Technology - B.SC(IT)
SEMESTER
III
SUBJECT
CODE & NAME
BIT303 –
OBJECT ORIENTED PROGRAMMING – JAVA
SET 1
Qus:1 Outline the different features of Java.
Answer: The Java buzzwords or features of Java
The fundamental forces that
necessitated the invention of Java are portability and security but other
factors also played an important role in molding the final form of the
language. The key considerations that
Qus:2 Elaborate about different control flow statements in
Java.
Answer: To control the flow of execution in a program the following
statements are used:
1. Decision Making Statements
If-else statement
Switch –
Qus:3 Illustrate with example exception handling techniques.
Answer: Java creates an object of appropriate exception class
whenever there a error occurs in your method. Once the exception objects are
created it is passed to your program. This is called throwing an exception.
These exception object have the information about the present state of the
program and
SET 2
Qus:1 Write a note on Java Virtual Machine (JVM).
Answer: JVM (Java Virtual Machine) is an abstract machine, i.e., it
is a software implementation of a computer that executes programs like a real
machine. It specifies and provides runtime environment where java bytecode can
be executed. Since JVM is a software implementation, it is written specifically
for a specific operating system. So JVM is platform dependent because
Qus:2 What do you understand by enhance for statement?
Answer: An another form of for statement also exists. It performs
iteration through collections and arrays. This form is also called vthe
enhanced for statement. Use of enhanced for statement makes
Qus:3 Outline and discuss the exceptions in Java. (Mention
different types).
Answer: The term exception in Java means occurrence of an
exceptional event. It is defined as abnormality that occurs while the program
is in execution which hinders successful execution of the program, which means
the way the program is meant to produce result it doesn’t do so. When you are
developing apps Error Handling is very necessary. The abnormalities or
unexpected situations that you can encounter while the execution of programs ar
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
PROGRAM
Bachelor
of Science in Information Technology - B.SC(IT)
SEMESTER
III
SUBJECT
CODE & NAME
BIT304 –
Data Base Management System
SET 1
Qus:1 Write down the properties of database.
Answer: The database is a collection of related data. In a file
system, the fundamental component of a file is a data item, which is the smallest named unit of data that has
meaning in the real world – for example, last name, first name, street address,
ID number, or political party. A
Qus:2 Do a survey on hierarchal model.
Answer: The hierarchical data model organizes data in a tree
structure. There is a hierarchy of parent and child data segments. This
structure implies that a record can have repeating information, generally in
the child data segments.
Data is in a
Qus:3 Elaborate about statement with example.
Answer: The select statement specifies the method of selecting the
tuples of the relations(s). The tuples processed are from one or more relations
specified by the form clause of the select statement. The basic
SET 2
Qus:1 Outline the different function of database management
system.
Answer: There are several functions that a DBMS performs to ensure
data integrity and consistency of data in the database. The ten functions in
the DBMS are: data dictionary management, data
Qus:2 Discuss briefly relative data model.
Answer: The relational model today, is the primary data model for
commercial data processing applications. It has attained its primary position
because of its simplicity, which eases the job of the programmer, as
compared to earlier data models such as the network model or the
Qus:3 What are subqueries? Explain with example.
Answer: The expression following WHERE can be either a simple
predicate as explained
Complete Smu assignments available in rs
125 per assignment only
You can mail us your questions computeroperator4@gmail.com
within 1 min to 1 hour will revert you. Otherwise
you can call us on 08791490301, 08273413412.
If your questions not match with assignment, don’t worry we will provide by
mail according to your questions
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