10+ Interview Questions and Answers

A program to find palindrome numbers in a given range.

• Iterate through the given range of numbers

• Convert each number to a string and check if it is equal to its reverse

• If yes, add it to the list of palindrome numbers

Carry is generated when the sum of two digits is greater than 9.

• Carry is a digit that is carried over to the next place value in the sum.

• For example, in the sum 56 + 78, the carry generated is 1 (5+7=12, carry 1, 6+8+1=15).

• Carry is important in addition of large numbers and in binary addition.

Campaigns, Promotions, and Coupons are marketing strategies used to attract customers and increase sales.

• Campaigns are strategic marketing efforts to promote a product or service over a specific period of time.

• Promotions are temporary incentives offered to customers to encourage purchases, such as discounts or free gifts.

• Coupons are vouchers that entitle the holder to a discount on a particular product or service.

• Examples: Black Friday campaign, Buy One Get One Free promotion...read more

Create an array of strings containing 1, 1.5, 2, 2.5, 3

• Initialize an array of strings

• Add the numbers 1, 1.5, 2, 2.5, 3 as strings to the array

Global JS refers to JavaScript variables or functions that are accessible from anywhere in the code.

• Global JS variables are declared outside of any function and can be accessed from any part of the code.

• Global JS functions are defined without being enclosed within another function and can be called from anywhere in the code.

• Using global variables or functions can lead to potential conflicts and security risks.

Clouds are visible masses of water droplets or ice crystals suspended in the atmosphere.

• Clouds are classified based on their altitude, shape, and appearance.

• Types of clouds include cirrus, cumulus, stratus, and nimbus.

• High-level clouds are found at altitudes above 20,000 feet, while low-level clouds are below 6,500 feet.

• Clouds can also be classified as convective, stratiform, or cumulonimbus.

Security model refers to the framework that defines how security is implemented in a system or application.

• Security model determines who can access what resources and under what conditions

• It includes authentication, authorization, encryption, and auditing

• Examples of security models include discretionary access control (DAC), mandatory access control (MAC), and role-based access control (RBAC)

Data modelling is the process of creating a visual representation of data and its relationships within a system.

• Identifying entities and their attributes

• Defining relationships between entities

• Creating a schema to represent the data

• Normalization to reduce redundancy

• Example: Entity-Relationship Diagram (ERD)