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Z1 Tech Interview Questions and Answers
12 Interview questions
I led a social media campaign that increased brand awareness and engagement, resulting in a 30% boost in website traffic.
Developed a content calendar for consistent posting across platforms.
Collaborated with influencers to reach a wider audience, resulting in a 15% increase in followers.
Utilized analytics tools to track engagement and adjust strategies, leading to a 25% increase in post interactions.
Conducted A/B ...
I prioritize tasks by assessing urgency, impact, and resources, using tools for organization and communication.
1. Assess urgency and impact: I evaluate tasks based on deadlines and their potential impact on overall goals. For example, launching a campaign for a product release takes precedence over social media updates.
2. Use project management tools: I utilize tools like Trello or Asana to organize tasks, set dea...
I follow a systematic approach to design and optimize databases for performance, scalability, and maintainability.
1. Requirements Gathering: Understand the application's data needs and user requirements.
2. Conceptual Design: Create an Entity-Relationship (ER) diagram to visualize data relationships.
3. Logical Design: Define tables, columns, data types, and relationships based on the ER diagram.
4. Normalization: Ap...
I implement security measures and design for scalability in APIs through best practices and robust architecture.
Use HTTPS to encrypt data in transit, preventing eavesdropping and man-in-the-middle attacks.
Implement authentication and authorization using OAuth 2.0 or JWT to ensure only authorized users can access the API.
Rate limiting to prevent abuse and ensure fair usage, e.g., limiting requests to 100 per minute...
Ad Rank is a value used to determine the position of an ad on a search engine results page.
Ad Rank is calculated based on the bid amount, ad quality, and ad extensions.
Higher Ad Rank increases the chances of an ad being shown in a higher position.
Ad Rank formula: Ad Rank = Bid Amount x Quality Score + Ad Extension Impact.
Example: An ad with a high bid amount, good quality score, and relevant ad extensions will hav...
Attribution models in Google Ads determine how credit for conversions is assigned to different touchpoints in a customer's journey.
Common attribution models include last click, first click, linear, time decay, and position-based.
Each model has its own way of assigning credit to touchpoints based on their position in the customer journey.
For example, the last click model gives all credit for a conversion to the las...
Invoke controller is a component in a software application that manages the flow of requests and responses between the user interface and the backend services.
Manages the communication between user interface and backend services
Handles the routing of requests to appropriate functions or methods
Coordinates the flow of data and actions within the application
Facade in Laravel is a design pattern that provides a simple interface to a complex subsystem.
Facade provides a static interface to classes that are available in the application's service container.
It is used to simplify the usage of complex classes by providing a simpler interface.
Facade allows you to access Laravel's features without needing to instantiate objects or use dependency injection.
Example: The Auth fa...
Possible reasons for drop in CPM include seasonality, changes in ad inventory, shifts in audience demographics, and increased competition.
Seasonal fluctuations in advertising demand
Changes in available ad inventory
Shifts in audience demographics affecting targeting effectiveness
Increased competition leading to lower bids
To find the mid of a linked list using a single loop.
Initialize two pointers, slow and fast, both pointing to the head of the linked list.
Move the slow pointer by one node and the fast pointer by two nodes in each iteration.
When the fast pointer reaches the end of the linked list, the slow pointer will be pointing to the middle node.
Return the value of the node pointed by the slow pointer as the mid of the linked ...
Z1 Tech Interview Experiences
16 interviews found
Anonymous
I applied via Approached by Company and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- Q1. What is invoke controller?
- Ans.
Invoke controller is a component in a software application that manages the flow of requests and responses between the user interface and the backend services.
Manages the communication between user interface and backend services
Handles the routing of requests to appropriate functions or methods
Coordinates the flow of data and actions within the application
- Q2. What is facade in laravel?
- Ans.
Facade in Laravel is a design pattern that provides a simple interface to a complex subsystem.
Facade provides a static interface to classes that are available in the application's service container.
It is used to simplify the usage of complex classes by providing a simpler interface.
Facade allows you to access Laravel's features without needing to instantiate objects or use dependency injection.
Example: The Auth facade ...
Skills evaluated in this interview
Selected
I appeared for an interview in Jul 2025, where I was asked the following questions.
- Q1. How do you evaluate a publisher's monetisation potential before onboarding them?
- Q2. Walk us through your approach for building a revenue pipeline for publisher account?
Sanisha Lakhisarani
Selected
I appeared for an interview in Jun 2025, where I was asked the following questions.
- Q1. Last Experience
- Q2. Skillset Questions
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(3 Questions)
- Q1. Tell me about yourself?
- Ans.
Experienced performance marketing manager with a proven track record of driving successful campaigns and maximizing ROI.
Over 5 years of experience in performance marketing
Proficient in utilizing various digital marketing channels such as PPC, SEO, and social media advertising
Strong analytical skills to track and optimize campaign performance
Managed budgets effectively to achieve desired results
Previously increased conv...
- Q2. Attribution models in Google ads?
- Ans.
Attribution models in Google Ads determine how credit for conversions is assigned to different touchpoints in a customer's journey.
Common attribution models include last click, first click, linear, time decay, and position-based.
Each model has its own way of assigning credit to touchpoints based on their position in the customer journey.
For example, the last click model gives all credit for a conversion to the last tou...
- Q3. Define Ad Rank?
- Ans.
Ad Rank is a value used to determine the position of an ad on a search engine results page.
Ad Rank is calculated based on the bid amount, ad quality, and ad extensions.
Higher Ad Rank increases the chances of an ad being shown in a higher position.
Ad Rank formula: Ad Rank = Bid Amount x Quality Score + Ad Extension Impact.
Example: An ad with a high bid amount, good quality score, and relevant ad extensions will have a h...
Skills evaluated in this interview
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- Q1. Reasons for the drop in CPM
- Ans.
Possible reasons for drop in CPM include seasonality, changes in ad inventory, shifts in audience demographics, and increased competition.
Seasonal fluctuations in advertising demand
Changes in available ad inventory
Shifts in audience demographics affecting targeting effectiveness
Increased competition leading to lower bids
- Q2. Types of floor in GAM
- Ans.
Types of floors in GAM include carpet, hardwood, tile, and laminate.
Carpet
Hardwood
Tile
Laminate
Interview Preparation Tips
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Questions on vlook up, h-look up, pivot and if else condition
- Q2. You must know how to use vlook up, h-look up and if-else condition
Excel file was give, used sumifs, countifs , index match formulas
Interview Preparation Tips
Selected
I appeared for an interview before Jul 2024, where I was asked the following questions.
- Q1. Describe your leadership style
- Q2. How do you handle underferforming employees?
Interview Preparation Tips
(1 Question)
- Q1. Laravel framework question.
(1 Question)
- Q1. Laravel framework question
Interview Preparation Tips
Dharmveer Singh
I applied via Referral and was interviewed in Feb 2023. There were 4 interview rounds.
There are some mcq based on dsa and core subject
3 coding question easy to medium
(2 Questions)
- Q1. Find the mid of linked list using single loop
- Ans.
To find the mid of a linked list using a single loop.
Initialize two pointers, slow and fast, both pointing to the head of the linked list.
Move the slow pointer by one node and the fast pointer by two nodes in each iteration.
When the fast pointer reaches the end of the linked list, the slow pointer will be pointing to the middle node.
Return the value of the node pointed by the slow pointer as the mid of the linked list.
- Q2. Reverse array without using extra space
- Ans.
Reverse an array without using extra space
Use two pointers, one at the beginning and one at the end of the array
Swap the elements at the two pointers and move the pointers towards each other
Repeat until the pointers meet at the middle of the array
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Aug 2023. There were 3 interview rounds.
Asked most question from javascript, and react also, interviewer was behaving rude
(1 Question)
- Q1. There was no hr round
Interview Preparation Tips
I appeared for an interview before Aug 2024, where I was asked the following questions.
- Q1. How do you prioritize and manage multiple marketing tasks or campaigns at once ?
- Ans.
I prioritize tasks by assessing urgency, impact, and resources, using tools for organization and communication.
1. Assess urgency and impact: I evaluate tasks based on deadlines and their potential impact on overall goals. For example, launching a campaign for a product release takes precedence over social media updates.
2. Use project management tools: I utilize tools like Trello or Asana to organize tasks, set deadline...
- Q2. Can you share an example of a marketing project you contributed to and its results ?
- Ans.
I led a social media campaign that increased brand awareness and engagement, resulting in a 30% boost in website traffic.
Developed a content calendar for consistent posting across platforms.
Collaborated with influencers to reach a wider audience, resulting in a 15% increase in followers.
Utilized analytics tools to track engagement and adjust strategies, leading to a 25% increase in post interactions.
Conducted A/B testi...
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