Algorithms Mock Test 5 - Online MCQ Exam

Cassandra creates a . . . . . . . . for each table, which allows you to symlink a table to a chosen physical drive or data volume.

1 Mark(s)

Your Answer:

directory directory
subdirectory subdirectory
domain domain
path path

Which of the following sets the color of a link before it has been clicked on?

1 Mark(s)

Your Answer:

ALINK ALINK
LINK LINK
VLINK VLINK
ULINK ULINK

Radius of sun is:

1 Mark(s)

Your Answer:

3.8x105 m 3.8x105 m
6.96x108 m 6.96x108 m
6.37x106 m 6.37x106 m
1x104 m 1x104 m

Which of these methods can be used to output a string in an applet?

1 Mark(s)

Your Answer:

display() display()
print() print()
drawString() drawString()
transient() transient()

Coefficient of thermal expansion of pyrex glass is:

1 Mark(s)

Your Answer:

1.2x10-6/C° 1.2x10-6/C°
3.2x10-6/C° 3.2x10-6/C°
9x10-4/C° 9x10-4/C°
11x10-4/C° 11x10-4/C°

An option that is used by the source to predetermine a route for the datagram as it travels through the Internet is known as:

1 Mark(s)

Your Answer:

strict source strict source
strict source header strict source header
strict source route strict source route
strict source data strict source data

Which Java operator is used for short-circuit logical OR?

1 Mark(s)

Your Answer:

& &
|| ||
&& &&
None of These None of These

A collection of facts and figures is known to be as:

1 Mark(s)

Your Answer:

Data Data
Database Database
Sequenced data Sequenced data
Structured data Structured data

Number of rows is returned by the attribute . . . . . . . .

1 Mark(s)

Your Answer:

insertIID insertIID
rows rows
rowsAffected rowsAffected
length length

which of these keys are used in ms excel to copy formulas from the above cell?

1 Mark(s)

Your Answer:

ctrl + ctrl +
ctrl +; ctrl +;
ctrl +: ctrl +:
ctrl +' ctrl +'

How can we filter lines based on content?

1 Mark(s)

Your Answer:

lines.filter() lines.filter()
filter(lines) filter(lines)
lines.contains(filter) lines.contains(filter)
lines.select() lines.select()

Which parser is most powerful in the following parsers?

1 Mark(s)

Your Answer:

Operator Precedence Operator Precedence
SLR SLR
Canonical LR Canonical LR
LALR LALR

Crtl +Z is used for?

1 Mark(s)

Your Answer:

print print
save save
undo undo
none none

Which of the following data types is shown below? L = [2, 54, 'javatpoint', 5] What will be the output of this statement? ``` L = [2, 54, 'javatpoint', 5] ```

1 Mark(s)

Your Answer:

Dictionary Dictionary
Tuple Tuple
List List
Stack Stack

What is the role of the 'parent' array in the implementation of Dijkstra's algorithm?

1 Mark(s)

Your Answer:

To store the previous node for each node.
To store the current distance from the source.
To mark visited nodes. To mark visited nodes.
To track the minimum distance. To track the minimum distance.

The value of hailwood horrobin in mercerized cotton is calculated to be:

1 Mark(s)

Your Answer:

45 45
33 33
50 50
65 65

Which of the following can be considered as the elements of cyber security?

1 Mark(s)

Your Answer:

Application Security Application Security
Operational Security Operational Security
Network Security Network Security
All of the above All of the above

The subset of the super key is the candidate key under what condition?

1 Mark(s)

Your Answer:

No proper subset is a super key No proper subset is a super key
All subsets are super keys All subsets are super keys
Subset is a super key Subset is a super key
Each subset is a super key Each subset is a super key

In Java Servlets, what is the purpose of the `HttpServletRequestWrapper` class?

1 Mark(s)

Your Answer:

To manage JavaBean events To manage JavaBean events
To wrap an existing `HttpServletRequest`
To execute SQL queries To execute SQL queries
None of These None of These

SOAP is now just a name, not an acronym.

1 Mark(s)

Your Answer:

True True
False False

Embedded SQL expressions for database modification results are:

1 Mark(s)

Your Answer:

Returned Returned
Never returned Never returned
Rejected Rejected
Not Executed Not Executed

To create Scenario which option requires to be activated

1 Mark(s)

Your Answer:

Use Rev Journal & Optional voucher in F12
Use Optional voucher in F11 Use Optional voucher in F11
Use Reversing voucher in F11 Use Reversing voucher in F11
Use Rev journal & Optional voucher in F11

Which one of the following methods can be used to diagnose and display information about a MySQL connection error?

1 Mark(s)

Your Answer:

connect_errno() connect_errno()
connect_error() connect_error()
mysqli_connect_errno() mysqli_connect_errno()
mysqli_connect_error() mysqli_connect_error()

Which among the following is used for storage of unmanaged memory aspects?

1 Mark(s)

Your Answer:

BufferedStream BufferedStream
FileStream FileStream
MemoryStream MemoryStream
UnmanagedMemoryStream UnmanagedMemoryStream

Identify the Private IP address.

1 Mark(s)

Your Answer:

192.168.1.50 192.168.1.50
8.8.8.8 8.8.8.8
172.50.1.1 172.50.1.1
11.0.0.1 11.0.0.1

What will be the output of the following C code? #include<stdio.h> #define sf 10 main() { if(sf==100) printf("good"); else { printf("bad"); sf=100; } printf("%d",sf); }

1 Mark(s)

Your Answer:

100 100
bad bad
10 10
error error

Keeping a server updated

1 Mark(s)

Your Answer:

Speeds up folder access Speeds up folder access
Maximizes network efficiency Maximizes network efficiency
Fixes security holes Fixes security holes
Synchronizes the server Synchronizes the server
none none

Which data structure is optimal for implementing a dynamic set of items with fast updates and queries?

1 Mark(s)

Your Answer:

Linked List Linked List
Queue Queue
Balanced Binary Search Tree Balanced Binary Search Tree
Hash Table Hash Table

Which of the following is a valid way to initialize a constant variable in C++?

1 Mark(s)

Your Answer:

Using the 'volatile' keyword Using the 'volatile' keyword
Using the 'static' keyword Using the 'static' keyword
Using the 'const' keyword Using the 'const' keyword
Using the 'constexpr' keyword Using the 'constexpr' keyword

What will be the output of the following Python code? '{a}, {0}, {abc}'.format(10, a=2.5, abc=[1, 2])

1 Mark(s)

Your Answer:

Error Error
'2.5, 10, [1, 2]' '2.5, 10, [1, 2]'
2.5, 10, 1, 2 2.5, 10, 1, 2
'10, 2.5, [1, 2]' '10, 2.5, [1, 2]'

SQL prevents any update to the database that violates an:

1 Mark(s)

Your Answer:

Declaration Declaration
Definition Definition
Constraint Constraint
Attributes Attributes

In computing, how is a modulator-demodulator more commonly known?

1 Mark(s)

Your Answer:

Modem Modem
Printer Printer
Multiplexer Multiplexer
Circuit Answer Circuit Answer

For obtaining information about the fine fibers, waves used are:

1 Mark(s)

Your Answer:

electromagnetic electromagnetic
electroscopic electroscopic
electromotive electromotive
electrified electrified

In case of chocolate the heating lead to changes which are:

1 Mark(s)

Your Answer:

reversible reversible
irreversible irreversible
same same
constant constant

MS Access provides _______ forms of layouts.

1 Mark(s)

Your Answer:

3 3
6 6
4 4
2 2
5 5

Which function key is used for refreshing Windows?

1 Mark(s)

Your Answer:

F1 F1
F2 F2
F5 F5
None of these None of these

. . . . . . . . transport is required when using a non-blocking server.

1 Mark(s)

Your Answer:

TZlibTransport TZlibTransport
TFramedTransport TFramedTransport
TMemoryTransport TMemoryTransport
None of the mentioned None of the mentioned

Predict the output: public class Test{ public static void main(String args[]){ try{ String arr[] = new String[10]; arr = null; arr[0] = "one"; System.out.print(arr[0]); }catch(Exception ex){ System.out.print("exception"); }catch(NullPointerException nex){ System.out.print("null pointer exception"); } } }

1 Mark(s)

Your Answer:

"one" is printed. "one" is printed.
"exception" is printed. "exception" is printed.
"null pointer exception" is printed. "null pointer exception" is printed.
Compilation fails saying NullPointerException has already been caught.
None of these None of these

File system used by Windows 2000 and XP is:

1 Mark(s)

Your Answer:

FAT 32 FAT 32
FAT FAT
HPFS HPFS
NTFS 5 NTFS 5

In C++, which standard library header is used for supporting multi-threading?

1 Mark(s)

Your Answer:

<mutex> <mutex>
<future> <future>
<thread> <thread>
<atomic> <atomic>

If a function doesn't have a return statement, which of the following does the function return?

1 Mark(s)

Your Answer:

int int
null null
None None
An exception is thrown without the return statement

In forward transmission of Interim Standard 95 (IS-95), the result of the scrambler is combined using:

1 Mark(s)

Your Answer:

FSK FSK
TDMA TDMA
CDMA CDMA
CDMA and AMPS CDMA and AMPS

Which of the following will add the title "R language" to the graph?

1 Mark(s)

Your Answer:

titleAdd( "R language") titleAdd( "R language")
title( "R language") title( "R language")
titleBar( "R language") titleBar( "R language")
var(x, na.rm=TRUE) var(x, na.rm=TRUE)

The jQuery selector used to select the elements containing the specified string is -

1 Mark(s)

Your Answer:

jQuery :contains selector jQuery :contains selector
jQuery :lang() selector jQuery :lang() selector
jQuery :nth-child selector jQuery :nth-child selector
None of the above None of the above

Which technology creates a secure tunnel over the internet?

1 Mark(s)

Your Answer:

VLAN VLAN
NAT NAT
VPN VPN
DNS DNS

___ languages are near to computer hardware.?

1 Mark(s)

Your Answer:

Low Level Low Level
High Level High Level
Procedural Languages Procedural Languages
Structural Languages Answer Structural Languages Answer

Which of the following mode will refer to binary data?

1 Mark(s)

Your Answer:

r r
w w
+ +
b b

ISN stands for:

1 Mark(s)

Your Answer:

Initial Slot Number Initial Slot Number
Initial String Number Initial String Number
Initial Sequence Number Initial Sequence Number
Initial Source Number Initial Source Number

Which wrapper class corresponds to the `char` primitive type in Java?

1 Mark(s)

Your Answer:

`String` `String`
`Integer` `Integer`
`Float` `Float`
`Character` `Character`

What does the term "Combiner" represent in the context of MapReduce?

1 Mark(s)

Your Answer:

Data compression Data compression
Combine intermediate key-value pairs on the mapper side
Aggregate values on the reducer side Aggregate values on the reducer side
Data sorting and grouping Data sorting and grouping

How can you create a new SQLite database using the sqlite3 module?

1 Mark(s)

Your Answer:

Using the create_database() function Using the create_database() function
By writing SQL queries By writing SQL queries
By calling the new_database() method By calling the new_database() method
By executing the sqlite3.create() command

What is the default value of an int variable in Java if it's not explicitly initialized?

1 Mark(s)

Your Answer:

0 0
1 1
-1 -1
Null Null

Dump of memory of the computer system is examined by the:

1 Mark(s)

Your Answer:

programmer programmer
designer designer
debugger debugger
engineer engineer

What will be the output of the following? array = [100, 200, 300, 400, 500] print array[4]

1 Mark(s)

Your Answer:

400 400
500 500
Nil Nil
None of the mentioned None of the mentioned

What will be the output of the following C code? #include <stdio.h> void main() { int k = 4; float k = 4; printf("%d", k) }

1 Mark(s)

Your Answer:

Compile time error Compile time error
4 4
4.0000000 4.0000000
4.4 4.4

BCD code is:

1 Mark(s)

Your Answer:

non-weighted non-weighted
the same thing as binary numbers the same thing as binary numbers
a binary code a binary code
an alphanumeric code an alphanumeric code

Year in which the first operating system was developed is:

1 Mark(s)

Your Answer:

1910 1910
1940 1940
1950 1950
1980 1980

What will be the output of the following C++ code? #include <iostream> #include <string> using namespace std; class A{ mutable int a; public: A(){ cout<<"A's default constructor called\n"; } A(const A& a){ cout<<"A's copy Constructor called\n"; } }; class B{ A obj; public: B(){ cout<<"B's Constructor called\n"; } }; int main(int argc, char const *argv[]) { B b1; B b2; }

1 Mark(s)

Your Answer:

B's Constructor called B's Constructor called
B's Constructor called A's default constructor called B's Constructor called A's default constructor called
A's default constructor called B's Constructor called A's default constructor called B's Constructor called
A's default constructor called B's Constructor called A's copy Constructor called

Which of the following is a correct way to allocate dynamic memory for int array?

1 Mark(s)

Your Answer:

int* p=new int[10]; int* p=new int[10];
int* p=(int*)malloc(10); int* p=(int*)malloc(10);
int* p=new int; int* p=new int;
int p[10]; int p[10];

Which of the following css propery define the properties that will be animated in an animation rule?

1 Mark(s)

Your Answer:

@keyframes @keyframes
animation-origin animation-origin
transform transform
animation animation

A push on spring can cause it to:

1 Mark(s)

Your Answer:

compress compress
stretch stretch
elongate elongate
enlarge enlarge

Which keyword is used to declare a synchronized method in Java?

1 Mark(s)

Your Answer:

sync sync
lock lock
thread-safe thread-safe
synchronized synchronized

What is the output of the following code: cout << (7 >= 7); in C++?

1 Mark(s)

Your Answer:

TRUE TRUE
FALSE FALSE
1 1
0 0

Javascript is _________ language.

1 Mark(s)

Your Answer:

Programming Programming
Application Application
None of These None of These
Scripting Scripting

Number of byte read during last read of the program/memory is:

1 Mark(s)

Your Answer:

LPDWORD bytesToread LPDWORD bytesToread
DWORD bytesToread DWORD bytesToread
LPDWORD bytesTowrite LPDWORD bytesTowrite
DWORD bytesTowrite DWORD bytesTowrite

What will be the output of the following Python code snippet? >>> a={1:"A",2:"B",3:"C"} >>> del a

1 Mark(s)

Your Answer:

method del doesn't exist for the dictionary
del deletes the values in the dictionary
del deletes the entire dictionary del deletes the entire dictionary
del deletes the keys in the dictionary del deletes the keys in the dictionary

What will be the output after compiling and running following code? public class Test{ public static void main(String... args){ int x =5; x *= 3 + 7; System.out.println(x); } }

1 Mark(s)

Your Answer:

22 22
50 50
10 10
Compilation fails with an error at line 4
None of these None of these

When two events occur at same location in an inertial reference frame, time interval between them is called:

1 Mark(s)

Your Answer:

linear time linear time
time dilation time dilation
proper time proper time
fixed time fixed time

Which of the following is the correct application of image blurring?

1 Mark(s)

Your Answer:

Gross representation Gross representation
Object motion Object motion
Object detection Object detection
Image segmentation Image segmentation

What is the correct syntax for defining a recursive function in C++?

1 Mark(s)

Your Answer:

returnType functionName(parameters) { functionName(parameters); }
returnType functionName(parameters) { functionName(); }
functionName(parameters) { return functionName(parameters); }
None of the above None of the above

What is a balanced chemical equation?

1 Mark(s)

Your Answer:

The equation in which the number of reactants is equal to the number of products.
The equation in which the size of the reactant is equal to the size of the product.
The equation in which the number of atoms of the reactant is equal to the number of atoms of the product.
The equation in which the number of the molecule is equal to the number of the product.

When a process is spawned, a thread for that process is also:

1 Mark(s)

Your Answer:

Complete Complete
Spawned Spawned
Closed Closed
Update Update

For orbit around the star, aphelion is termed as:

1 Mark(s)

Your Answer:

apastron apastron
apogee apogee
apocenter apocenter
apoapsis apoapsis

In MS Word 2018 which of the following is not present in insert menu?

1 Mark(s)

Your Answer:

Column Column
Table Table
Page number Page number
Object Object

In Internet Protocol Version (IPv4) protocol, each datagram is handled:

1 Mark(s)

Your Answer:

independently independently
dependently dependently
priority basis priority basis
systematically systematically

In Sqoop, what is the role of the "--check-column" option in an incremental import command?

1 Mark(s)

Your Answer:

Specify the target directory for the imported data
Enable data compression Enable data compression
Specify the column used to determine new rows
Disable incremental data transfer Disable incremental data transfer

Which of the following measurement defines a measurement in points?

1 Mark(s)

Your Answer:

px px
in in
em em
pt pt

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Algorithms Mock Test 5 : Question 1 of 77