InfyTQ Mock Certification Tests 2023 – Paper 1

Syntax of constructor in Python?

Predict the Output

def display_cat_details(color, name1, name2=None, name3=None): #line 1 
    pass 

display_cat_details("Brown","Fluffy","Snow")
Which of the following function signatures when replaced in line1 will continue to execute successfully 

Predict the Output

def vending_machine(insert_money,item_id): 
    if item_id == 101 and insert_money:
        #line1 
    #line2 
insert_money=True 
item_id = 101 
print(vending_machine(insert_money,item_id))

Which of the following can help us to find the version of python that we are
currently working on?

def bubble_sort(input_list):
    num = len(input_list)
    for index1 in range(num): 
        for index2 in range(0, num-index1-1):
            if input_list[index2] > input_list[index2+1]:
                input_list[index2], input_list[index2+1] = input_list[index2+1], input_list[index2]
        

input_list = [4,10,2,7,1,8]  
bubble_sort(input_list) 

What will be the content of input_list after third pass ?

To execute a python program using command prompt, which command is used ?

Predict the Output

def binary_search(num_list, element):
    low=0
    high=len(num_list)-1
    mid=(low+high)//2
    while(num_list[mid]!=element and low<high): 
        if(element>num_list[mid]):
            low=mid+1
        else:
            high=mid-1
        mid=(low+high)//2 
    if(element == num_list[mid]):
        print("Element is in the list at index", mid)
    else:
        print("Element is not in the list")

 Above code is for Binary Search Algorithm for the list of elements sorted in ascending order, what modifications are required if it has to be used for the list which is in descending order.

Consider the following : What must be written in line1, line2, line3 to print [‘p’,’o’,’c’]as o/p :

def function(string,list1):
    #line1
    while(num!=len(string)):
        if len(string)%2==0 or (string[num] in ('a','e','i','o','u')): 
            list1.append(string[num])
        #line2
        #line3
        break 
    return list1 
print(function("Epoch",[]))

Hexadecimal values in Python are represented as :

Consider the following code below code using ‘Logic Coverage’ technique :

if item_type =="Fashion":
    if amount>500 and amount<=1000:
        amount=amount-0.1*amount 
    elif item_type=="Electronics":
        if amount>10000 and amount<15000:
            amount=amount-0.15*amount 
    else:
        if amount>2000: 
            amount= amount- 0.07*amount
    print("final amount", amount)

def sample(v1,v2,v3=10,v4=3,*v5):
    v4+=2 
    v2= v1*v4 
    for v in v5:
        v = v*v 
    print(v1,v2,v3,v4,v5)  
sample(0,0,1,2,3,4,5)

What will the value of v5 ?

input_linked_list: 1->4->9->16

What will be the value of the elements in the input_linked_list after the
function fun() is invoked by passing the head of the input_linked_list as an
argument?

def fun(head):
	next_node = head.get_next()
	while(head!=None and next_node != None):
		head.set_data(head.get_data()+next_node.get_data())
		head = head.get_next()
		next_node = head.get_next()
		if(next_node != None):
			head.set_data(head.get_data()+next_node.get_data())
Note: Order of displaying the elements is from head to tail.

Predict the Output

class Glove: 
    def __init__(self,color):
        self.__color = color 
    def get_color(self):
        return self.__color 
    def set_color(self,color):
        self.__color= color 
class Minion: 
    def __init__(self,glove): 
        self.__glove=glove 
        self.__color="Yellow"
    def get_glove(self):
        return self.__glove 
black_glove = Glove("Black")
red_glove = Glove("Red")
bob = Minion(black_glove)
black_glove.set_color(red_glove.get_color())
print(#line)
 What should be placed in the place of #line to get the color of bob Minion's glove ?

How many reference variable(s) refer to the object created in line1 at the end of line2 ?

class Team:
    counter=0 
    def __init__(self):
        self.no_of_pllyers=11
        self.coach=None
cricket_team=Team() #line1
football_team=Team()
hockey_team=football_team
football_team=cricket_team
football_team=Team() #line2

What is delattr(obj,name) used for?

Choose the correct option :

Which of the following normal form deals with the repeating group anomaly ?

Choose the correct answer :

If we do want to eliminate duplicates, we use the keyword ______in the aggregate expression.

Choose the correct option :

Consider the following relational schemes for a library database:

Book (Title, Author, Catalog_no, Publisher, Year, Price)
Collection (Title, Author, Catalog_no)

Functional dependencies:

I. Title Author –> Catalog_no
II. Catalog_no –> Title Author Publisher Year
III. Publisher Title Year –> Price

Assume {Author, Title} is the key for both schemes. Which of the following statements is true?

Choose the correct opinion :

How to select all data from student table starting the name from letter ‘s’ ?

Choose the correct option :

Which of the following condition(s) is not a part of updating a view :