Kotlin Mock Test 6 - Online MCQ Exam

In Oozie, what is the role of the Oozie Workflow XML file?

1 Mark(s)

Your Answer:

A storage format in Hadoop A storage format in Hadoop
A query language for Hadoop A query language for Hadoop
A distributed file system A distributed file system
Define the structure and execution flow of a workflow

In hashing, what is a "collision"?

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Your Answer:

When two elements are stored in the same slot.
When a hash table exceeds its capacity. When a hash table exceeds its capacity.
When a hash function fails to produce a unique index.
When two keys hash to the same index. When two keys hash to the same index.

The field retry means retransmitting frame when its value is set to:

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Your Answer:

0 0
1 1
-1 -1
infinity infinity

To enter data into a worksheet. choose _____?

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Your Answer:

Numbers Numbers
Active cell Active cell
Mathematical signs Mathematical signs
None of the above None of the above

'Oxygen' is taken from:

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Your Answer:

cells to lungs cells to lungs
heart to lungs heart to lungs
lungs to cells lungs to cells
cells to heart cells to heart

Which of the following is not a file stream class in C++?

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Your Answer:

ifstream ifstream
ofstream ofstream
fstream fstream
filestream filestream

How many primary groups are there in Tally

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Your Answer:

19 19
28 28
15 15
20 20

What happens if an exception is thrown inside a destructor in C++?

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Your Answer:

It leads to undefined behavior It leads to undefined behavior
It is automatically caught and handled It is automatically caught and handled
It causes the program to crash It causes the program to crash
It is logged to a file It is logged to a file

Why is the this keyword forbidden in JavaScript?

1 Mark(s)

Your Answer:

Highly memory consuming Highly memory consuming
Functions should access the global objects
Functions should not access the global objects
Very inefficient to use Very inefficient to use

Which of the following is the correct way of implementing an interface addition by class maths?

1 Mark(s)

Your Answer:

class maths : addition {} class maths : addition {}
class maths implements addition {} class maths implements addition {}
class maths imports addition {} class maths imports addition {}
none of the mentioned none of the mentioned

What is the effective range of a Class B IP address?

1 Mark(s)

Your Answer:

1-126 1-126
128-191 128-191
192-223 192-223
224-239 224-239

What is the primary role of the HBase REST API in HBase?

1 Mark(s)

Your Answer:

Perform data analytics in Hadoop Perform data analytics in Hadoop
Manage computation resources Manage computation resources
Provide a web interface for interacting with HBase
Execute MapReduce jobs Execute MapReduce jobs

Magnetic tap is a ___

1 Mark(s)

Your Answer:

Serial access medium Serial access medium
Universal access medium Universal access medium
Random access medium Random access medium
None of these None of these

Which of the following protocols is used by USART?

1 Mark(s)

Your Answer:

RS32 RS32
RS232C RS232C
4RS85 4RS85
All of the these All of the these

Which of the following function calls is invalid if the function expects pass by reference?void fun(int &x);

1 Mark(s)

Your Answer:

fun(5); fun(5);
int a = 5; fun(a); int a = 5; fun(a);
int b = 2; fun(b); int b = 2; fun(b);
Both B and C Both B and C

SQL supports nested subqueries in the where, and from clauses of an:

1 Mark(s)

Your Answer:

Outer query Outer query
Inner query Inner query
Outer tuple Outer tuple
Inner tuple Inner tuple

C preprocessor

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Your Answer:

Takes care of conditional compilation Takes care of conditional compilation
Takes care of macros Takes care of macros
Takes care of include files Takes care of include files
Acts before compilation Acts before compilation
All of the above All of the above

What is the purpose of the @property decorator in Python classes?

1 Mark(s)

Your Answer:

It allows you to define a method that can be accessed like an attribute
It defines a property It defines a property
It defines a method It defines a method
It defines a constructor It defines a constructor

Which of the following is not a kind of MySQL backup?

1 Mark(s)

Your Answer:

File backups File backups
CSV backups CSV backups
SQL backups SQL backups
Table backups Table backups

What is the output of the given code? x=8 y=10 unless x<y puts "x is less than y" end unless x>y+1 puts "x is less than y+1" end

1 Mark(s)

Your Answer:

x is less than y x is less than y
x is less than y+1 x is less than y+1
x is less than y x is less than y+1 x is less than y x is less than y+1
None of the mentioned None of the mentioned

How can you determine if a Binary Tree is a Binary Search Tree (BST)?

1 Mark(s)

Your Answer:

Verify if all nodes in the left subtree are less than the root and all nodes in the right subtree are greater than the root.
Check if the tree is balanced. Check if the tree is balanced.
Ensure all nodes have exactly two children.
Verify the height of the tree. Verify the height of the tree.

What does the R function seq(1, 10, by = 2) produce?

1 Mark(s)

Your Answer:

1, 3, 5, 7, 9 1, 3, 5, 7, 9
1, 2, 3, 4, 5 1, 2, 3, 4, 5
1, 4, 7, 10 1, 4, 7, 10
2, 4, 6, 8, 10 2, 4, 6, 8, 10

Report generator is used to:?

1 Mark(s)

Your Answer:

Update files Update files
Print files on paper Print files on paper
Data entry Data entry
All of the Above Answer All of the Above Answer

What is the time complexity of deleting from the rear end of the dequeue implemented with a singly linked list?

1 Mark(s)

Your Answer:

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

What is the fundamental rule of lexical scoping?

1 Mark(s)

Your Answer:

Functions are declared in the scope Functions are declared in the scope
Functions are executed using scope chain
All of the mentioned All of the mentioned
None of the mentioned None of the mentioned

What will be the output of the following PHP code ? <?php $x = 0; if ($x++) print "hi"; else print "how are u"; ?>

1 Mark(s)

Your Answer:

hi hi
no output no output
error error
how are u how are u

Which one is action tab in MS PowerPoint?

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Your Answer:

Home Home
End End
Help Help
All of these All of these

Which of the following is true when describing a multicast address?

1 Mark(s)

Your Answer:

Packets addressed to a unicast address are delivered to a single interface.
Packets are delivered to all interfaces identified by the address. This is also called a one-to-many address.
Identifies multiple interfaces and is only delivered to one address. This address can also be called one-to-one-of-many.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.

What is the full form of HART?

1 Mark(s)

Your Answer:

Highway Application Remote Transport Highway Application Remote Transport
Highway Addressable Remote Transducer Highway Addressable Remote Transducer
High Address Reduce Transport High Address Reduce Transport
High Application Remote Transport High Application Remote Transport

Which one of the following function should I use to find the parent class of a class?

1 Mark(s)

Your Answer:

get_parent_class() get_parent_class()
parent_class() parent_class()
class_parent() class_parent()
get_class_parent() get_class_parent()

Evaluating Your Answers

Kotlin Mock Test 6 : Question 1 of 30