Python Institute JSA-41-01 Practice Exams
Last updated on Oct 22,2026- Exam Code: JSA-41-01
- Exam Name: JSA - Certified Associate JavaScript Programmer
- Certification Provider: Python Institute
- Latest update: Oct 22,2026
Question #101
let dynamicKey = "city";
Which two of the following expressions correctly access the city "New York" from the obj object?
- A . obj["details"].address["dynamicKey"]
- B . obj.details.address.city
- C . obj.details["address"].dynamicKey
- D . obj[key].address.city
- E . obj["details"]["address"]["city"]
Correct Answer: B, E
Question #102
What is the primary purpose of the__proto__property in JavaScript objects?
- A . To set or get the prototype of an object.
- B . To define the class of the object.
- C . To enforce strict data types on object properties.
- D . To create private variables within an object.
Correct Answer: A
Question #102
What is the primary purpose of the__proto__property in JavaScript objects?
- A . To set or get the prototype of an object.
- B . To define the class of the object.
- C . To enforce strict data types on object properties.
- D . To create private variables within an object.
Correct Answer: A
Question #104
console.log(forwardedSum(5, 3));
- A . TypeError: originalFunction.apply is not a function
- B . NaN
- C . 8
- D . 15
Correct Answer: D
Question #104
console.log(forwardedSum(5, 3));
- A . TypeError: originalFunction.apply is not a function
- B . NaN
- C . 8
- D . 15
Correct Answer: D
Question #106
console.log(emp1.displayInfo());
- A . John is a Developer
- B . John is a undefined
- C . Employee is a Developer
- D . undefined is a Developer
Correct Answer: A
Question #106
console.log(emp1.displayInfo());
- A . John is a Developer
- B . John is a undefined
- C . Employee is a Developer
- D . undefined is a Developer
Correct Answer: A
Question #108
console.log(animal.describe());
- A . Elephant is a mammal
- B . Elephant is a herbivore
- C . Error: type is not defined
- D . undefined is a herbivore
Correct Answer: B
Question #108
console.log(animal.describe());
- A . Elephant is a mammal
- B . Elephant is a herbivore
- C . Error: type is not defined
- D . undefined is a herbivore
Correct Answer: B
Question #108
console.log(animal.describe());
- A . Elephant is a mammal
- B . Elephant is a herbivore
- C . Error: type is not defined
- D . undefined is a herbivore
Correct Answer: B