Operating Systems Mock Test 10

Which version added the method getPrevious()?

1 Mark(s)

Your Answer:

PHP 4 PHP 4
PHP 5 PHP 5
PHP 5.1 PHP 5.1
PHP 5.3 PHP 5.3

A program that replicates itself to other computers is:

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Your Answer:

Virus Virus
Worm Worm
Trojan Trojan
Spyware Spyware

What allows multiple VLANs to travel over a single cable?

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Your Answer:

Routing Routing
Switching Switching
Trunking Trunking
Bridging Bridging

Which of the following is NOT a type of binary tree traversal?

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Your Answer:

Inorder Inorder
Preorder Preorder
Postorder Postorder
Level-order Level-order

Select the Odd one from the following

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Your Answer:

Operating system Operating system
Interpreter Interpreter
Compiler Compiler
Assembler Assembler

What will be the output of the following PHP code ? <?php $a = "1"; $b = "0"; if ((int)$a && $b) print"hi"; else print "hello"; ?>

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Your Answer:

hello hello
no output no output
hi hi
error error

Which specific process completed by Pseudomonas bacteria converts nitrates back into nitrogen gas (N 2 ), completing the nitrogen cycle?

1 Mark(s)

Your Answer:

A) Nitrogen fixation A) Nitrogen fixation
B) Nitrification B) Nitrification
C) Am monification C) Am monification
D) Denitrification D) Denitrification

What is the worst case time complexity of inserting an element into the sorted array?

1 Mark(s)

Your Answer:

O(nlogn) O(nlogn)
O(logn) O(logn)
O(n) O(n)
O(n2) O(n2)

Which of the following schemes does quadratic probing come under?

1 Mark(s)

Your Answer:

rehashing rehashing
extended hashing extended hashing
separate chaining separate chaining
open addressing open addressing

DataStage originated at . . . . . . . . a company that developed two notable products: UniVerse database and the DataStage ETL tool.

1 Mark(s)

Your Answer:

VMark VMark
Vzen Vzen
Hatez Hatez
None of the mentioned None of the mentioned

In peer-to-peer networking:

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Your Answer:

there is only one server and many clients
there is only one client and many servers
every computer is capable of playing the role of server
every computer is capable of playing the role of client, server or both at the same time

In a computer, RAM holds the data and instructions:

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Your Answer:

temporary temporary
permanently permanently
for few minutes for few minutes
for one day for one day

Which matrix has most of the elements (not all) as Zero?

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Your Answer:

Identity Matrix Identity Matrix
Unit Matrix Unit Matrix
Sparse Matrix Sparse Matrix
Zero Matrix Zero Matrix

What returns the set cookies in the form of a key?

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Your Answer:

path_info path_info
http_user_agent http_user_agent
http_cookie http_cookie
query_string query_string

Which function is used to rewind the file pointer to the beginning of the file in C++?

1 Mark(s)

Your Answer:

rewind() rewind()
reset() reset()
file.rewind() file.rewind()
file.seekg(0) file.seekg(0)

The ________ declaration specifies which characters and delimiters may appear in the application.

1 Mark(s)

Your Answer:

DTD DTD
SGML SGML
XML XML
None of the mentioned None of the mentioned

The style property belongs to while of the following object?

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Your Answer:

Element Element
Window Window
Location Location
None of the mentioned None of the mentioned

Which function displays row data into column or column data into row?

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Your Answer:

Hyperlink Hyperlink
Index Index
Transpose Transpose
Rows Rows

In MS Office Ctrl + W is used to ____ the current Window.?

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Your Answer:

Open Open
Close Close
Start Start
None of these Answer None of these Answer

SQL supports forms of user-defined data types, in the form of:

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Your Answer:

1 form 1 form
2 forms 2 forms
3 forms 3 forms
4 forms 4 forms

Which of the following is not a valid Data Type in MS Access?

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Your Answer:

Memo Memo
Picture Picture
Currency Currency
AutoNumber AutoNumber

"Ctrl + B" shortcut is used by user to:

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Your Answer:

selected text to be blow selected text to be blow
selected text border selected text border
selected text to be bold selected text to be bold
selected text to be broad selected text to be broad

In an ordered list, which tag is used to list individual items?

1 Mark(s)

Your Answer:

UL UL
OL OL
LI LI
None of the above None of the above

Farmers use to test the soil by tasting it. If the soil is sweet and has smell, it is:

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Your Answer:

acid acid
alkaline alkaline
silt silt
salty salty

Static system is:

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Your Answer:

Time-invariant system Time-invariant system
Time-variant system Time-variant system
Non-linear system Non-linear system
Constant system Constant system

The tapping mode of atomic force microscopy gives:

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Your Answer:

stiffness to the material stiffness to the material
softness to the material softness to the material
strength to the material strength to the material
base base

Which property reports rotation around three different mouse wheel axes?

1 Mark(s)

Your Answer:

ctrlKey ctrlKey
alterX alterX
alterY alterY
deltaX deltaX

In which of the following collections is the I/O based on a key?

1 Mark(s)

Your Answer:

BitArray BitArray
SortedList SortedList
Queue Queue
Stack Stack

The floating devices which are connected to chain for generation of electricity are called:

1 Mark(s)

Your Answer:

salter gooses salter gooses
salter ducks salter ducks
salter mines salter mines
salter seagulls salter seagulls

How many billions a gigabyte contains:

1 Mark(s)

Your Answer:

1 million bytes 1 million bytes
2 million bytes 2 million bytes
1 billion bytes 1 billion bytes
2 billion bytes 2 billion bytes

To create recursively defined permanent views, SQL allows usage of clause:

1 Mark(s)

Your Answer:

define recursive view define recursive view
create recursive view create recursive view
declare recursive view declare recursive view
modify recursive view modify recursive view

What will be the output of the following Java code? class test { int a; int b; test(int i, int j) { a = i; b = j; } void meth(test o) { o.a *= 2; O.b /= 2; } } class Output { public static void main(String args[]) { test obj = new test(10 , 20); obj.meth(obj); System.out.println(obj.a + " " + obj.b); } }

1 Mark(s)

Your Answer:

10 20 10 20
20 10 20 10
20 40 20 40
40 20 40 20

Pthreads refers to the POSIX standard defining an API for thread creation and:

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Your Answer:

Synchronization Synchronization
deletion deletion
Processing Processing
Communication Mode Communication Mode

Which of the following is true for friend function?

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Your Answer:

Cannot take arguments Cannot take arguments
Must be member function Must be member function
Can access private and protected members
Cannot return values Cannot return values

You can add a row using SQL in a database with which of the following?

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Your Answer:

ADD ADD
CREATE CREATE
INSERT INSERT
MAKE MAKE

_____________are set of rules and procedures to control the data transmission over the internet?

1 Mark(s)

Your Answer:

IP address IP address
Domains Domains
Protocol Protocol
Gateway Gateway

The return type of getElementsByClassName() is

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Your Answer:

DOM DOM
Document Document
Node Node
NodeList NodeList

Each blade server of the computer system has its own:

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Your Answer:

memory memory
hardware hardware
programs programs
operating system operating system

What will be the output?int arr[3] = {1,2};cout << arr[2];

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Your Answer:

0 0
2 2
Garbage Garbage
Error Error

Which of these events is generated when the window is closed?

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Your Answer:

TextEvent TextEvent
MouseEvent MouseEvent
FocusEvent FocusEvent
WindowEvent WindowEvent

What is a common application of the Dynamic Programming approach in algorithm design?

1 Mark(s)

Your Answer:

Simple sorting tasks. Simple sorting tasks.
Basic searching operations. Basic searching operations.
Optimization problems with complex constraints.
Simple arithmetic calculations. Simple arithmetic calculations.

The . . . . . . . . executes the Mapper/ Reducer task as a child process in a separate jvm.

1 Mark(s)

Your Answer:

JobTracker JobTracker
TaskTracker TaskTracker
TaskScheduler TaskScheduler
None of the mentioned None of the mentioned

Using style sheets in head section of a web document is called:

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Your Answer:

Inline CSS Inline CSS
External CSS External CSS
Internal CSS Internal CSS
Both A and B Both A and B

Link between ARPANET, NSFnet and other networks is called:

1 Mark(s)

Your Answer:

network network
internet internet
software software
process process

The element is a container for?

1 Mark(s)

Your Answer:

HTML documents HTML documents
HTML head tags HTML head tags
Metadata Metadata
None None

How can you send data using a Worker object?

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Your Answer:

postMessage() postMessage()
sendMessage() sendMessage()
Message() Message()
post() post()

Which of the following is used for reading in saved workspaces?

1 Mark(s)

Your Answer:

unserialize unserialize
load load
get get
set set

When AUTOCOMMIT is set on, changes will be made automatically at the end of each SQL statement.

1 Mark(s)

Your Answer:

True True
False False

What will be the output of the following Python functions? float('1e-003') float('2e+003')

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Your Answer:

3.00 300 3.00 300
0.001 2000.0 0.001 2000.0
0.001 200 0.001 200
Error 2003 Error 2003

Which is not an external command?

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Your Answer:

Edit Edit
XCOPY XCOPY
Sys Sys
None of the above None of the above

What is the process of defining a new class by extending an existing class in C++?

1 Mark(s)

Your Answer:

Base class Base class
Inherited class Inherited class
Subclass Subclass
Derived class Derived class

Talc powder when mix in water it:

1 Mark(s)

Your Answer:

never dissolve never dissolve
dissolved dissolved
soluble soluble
mix mix

The clause that permits a view definition to be used in multiple places within a query, is known to be:

1 Mark(s)

Your Answer:

Not Like clause Not Like clause
Unique clause Unique clause
With clause With clause
Having clause Having clause

Evaluating Your Answers

Operating Systems Mock Test 10 : Question 1 of 53