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Checkpoint Systems Interview Questions and Answers

Updated 24 Apr 2025
Popular Designations

8 Interview questions

A Mobile Software Engineer was asked 1mo ago
Q. How do you transfer an object from one thread to another?
Ans. 

Transferring objects between threads involves synchronization and safe data sharing techniques in concurrent programming.

  • Use synchronized blocks or methods to ensure thread safety when accessing shared objects.

  • Utilize thread-safe data structures like ConcurrentHashMap or CopyOnWriteArrayList.

  • Leverage message passing using queues (e.g., BlockingQueue) to transfer objects between threads.

  • Implement the Observer patte...

View all Mobile Software Engineer interview questions
🔥 Asked by recruiter 2 times
A Senior Android Developer was asked 9mo ago
Q. How do you find the middle of a linked list?
Ans. 

To find the middle of a linked list, use the slow and fast pointer technique.

  • Initialize two pointers, slow and fast, at the head of the linked list.

  • Move the slow pointer by one node and the fast pointer by two nodes until the fast pointer reaches the end of the list.

  • The node pointed to by the slow pointer at this point is the middle of the linked list.

View all Senior Android Developer interview questions
A Senior Android Developer was asked 9mo ago
Q. What is an ANR and how can it be prevented?
Ans. 

ANR stands for Application Not Responding, it occurs when the main UI thread is blocked for too long.

  • ANR can be prevented by offloading long-running tasks to background threads or services.

  • Optimizing code and reducing UI thread workload can also help prevent ANR.

  • Using tools like StrictMode can help identify potential ANR issues during development.

View all Senior Android Developer interview questions
A Senior Android Developer was asked 9mo ago
Q. What are the differences between an ArrayList and a LinkedList?
Ans. 

ArrayList is faster for accessing elements, while LinkedList is better for frequent insertions and deletions.

  • ArrayList uses an array to store elements, allowing for fast random access but slower insertions and deletions.

  • LinkedList uses nodes with references to the next and previous elements, making insertions and deletions faster but access slower.

  • For example, if you need to frequently add or remove elements in th...

View all Senior Android Developer interview questions
A TAC Engineer was asked 9mo ago
Q. Explain TCP flow.
Ans. 

TCP flow refers to the sequence of packets exchanged between two devices over a TCP connection.

  • TCP flow involves the establishment, data transfer, and termination of a TCP connection.

  • It includes the exchange of TCP segments containing data, acknowledgment, and control information.

  • TCP flow control mechanisms like sliding window and congestion control help regulate the flow of data.

  • TCP flow can be analyzed using too...

View all TAC Engineer interview questions
A TAC Engineer was asked 9mo ago
Q. Explain the DNS flow.
Ans. 

DNS flow refers to the process of how a DNS query is resolved from start to finish.

  • Client sends a DNS query to the recursive resolver.

  • Recursive resolver checks its cache for the answer, if not found, it sends the query to authoritative nameservers.

  • Authoritative nameservers respond with the IP address of the requested domain.

  • Recursive resolver caches the response and sends it back to the client.

  • Client now has the I...

View all TAC Engineer interview questions
A Software Engineer was asked
Q. What are some Java problems you have solved involving Strings and Arrays?
Ans. 

Java String and Array problems often involve manipulation, searching, and sorting of data structures.

  • 1. String Manipulation: Use methods like substring(), concat(), and replace(). Example: 'Hello'.substring(1, 4) returns 'ell'.

  • 2. Array Sorting: Use Arrays.sort() to sort arrays. Example: int[] arr = {3, 1, 2}; Arrays.sort(arr); results in {1, 2, 3}.

  • 3. Searching: Use Arrays.binarySearch() for sorted arrays. Example:...

View all Software Engineer interview questions
Are these interview questions helpful?
A Senior Android Developer was asked 9mo ago
Q. Threading and its method
Ans. 

Threading in Android allows multiple tasks to run concurrently, improving performance and responsiveness.

  • Threading can be implemented using classes such as AsyncTask, Handler, and Thread.

  • AsyncTask is used for short background tasks that need to update the UI, while Handler is used for communication between threads.

  • Thread is a low-level way to create a new thread for longer background tasks.

  • Care must be taken to av...

View all Senior Android Developer interview questions

Checkpoint Systems Interview Experiences

7 interviews found

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - Technical 

(9 Questions)

  • Q1. How do you find middle of linkedlist
  • Ans. 

    To find the middle of a linked list, use the slow and fast pointer technique.

    • Initialize two pointers, slow and fast, at the head of the linked list.

    • Move the slow pointer by one node and the fast pointer by two nodes until the fast pointer reaches the end of the list.

    • The node pointed to by the slow pointer at this point is the middle of the linked list.

  • Answered by AI
  • Q2. What is anr how to prevent
  • Ans. 

    ANR stands for Application Not Responding, it occurs when the main UI thread is blocked for too long.

    • ANR can be prevented by offloading long-running tasks to background threads or services.

    • Optimizing code and reducing UI thread workload can also help prevent ANR.

    • Using tools like StrictMode can help identify potential ANR issues during development.

  • Answered by AI
  • Q3. Basic of kotlin
  • Q4. Threading and its method
  • Ans. 

    Threading in Android allows multiple tasks to run concurrently, improving performance and responsiveness.

    • Threading can be implemented using classes such as AsyncTask, Handler, and Thread.

    • AsyncTask is used for short background tasks that need to update the UI, while Handler is used for communication between threads.

    • Thread is a low-level way to create a new thread for longer background tasks.

    • Care must be taken to avoid m...

  • Answered by AI
  • Q5. Relative layout and linear layout
  • Q6. Databinding and viewbinding
  • Q7. MVVM Related qustions
  • Q8. Dependency injections and use
  • Q9. Arraylist vs linklist
  • Ans. 

    ArrayList is faster for accessing elements, while LinkedList is better for frequent insertions and deletions.

    • ArrayList uses an array to store elements, allowing for fast random access but slower insertions and deletions.

    • LinkedList uses nodes with references to the next and previous elements, making insertions and deletions faster but access slower.

    • For example, if you need to frequently add or remove elements in the mid...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - it was good expirance in first round and i have cleared it but in 2nd round
Unfortunately its very frustrating and disappointing seems interviewers was very rude and not interested in making me feel comfortable . he asked very irreverent question and very behaviour was very weird not happy with 2nd round

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Aptitude test n coding
Round 2 - One-on-one 

(3 Questions)

  • Q1. Projects related
  • Q2. Aptitude round related
  • Q3. Rest api n development
Round 3 - One-on-one 

(2 Questions)

  • Q1. Linked list related qns
  • Q2. Logical reasoning related qns
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. How to find middle of linked list
  • Ans. 

    To find the middle of a linked list, use two pointers: one moves slowly and the other moves quickly.

    • Initialize two pointers, 'slow' and 'fast', both pointing to the head of the linked list.

    • Move 'slow' by one node and 'fast' by two nodes in each iteration.

    • When 'fast' reaches the end of the list, 'slow' will be at the middle.

    • Example: For the list 1 -> 2 -> 3 -> 4 -> 5, 'slow' will point to 3 when 'fast' reach...

  • Answered by AI
  • Q2. How to transfer object from one thread to another thread
  • Ans. 

    Transferring objects between threads involves synchronization and safe data sharing techniques in concurrent programming.

    • Use synchronized blocks or methods to ensure thread safety when accessing shared objects.

    • Utilize thread-safe data structures like ConcurrentHashMap or CopyOnWriteArrayList.

    • Leverage message passing using queues (e.g., BlockingQueue) to transfer objects between threads.

    • Implement the Observer pattern to...

  • Answered by AI

TAC Engineer Interview Questions & Answers

user image Anonymous

posted on 15 Sep 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Explain tcp flow
  • Ans. 

    TCP flow refers to the sequence of packets exchanged between two devices over a TCP connection.

    • TCP flow involves the establishment, data transfer, and termination of a TCP connection.

    • It includes the exchange of TCP segments containing data, acknowledgment, and control information.

    • TCP flow control mechanisms like sliding window and congestion control help regulate the flow of data.

    • TCP flow can be analyzed using tools li...

  • Answered by AI
  • Q2. Explain dns flow
  • Ans. 

    DNS flow refers to the process of how a DNS query is resolved from start to finish.

    • Client sends a DNS query to the recursive resolver.

    • Recursive resolver checks its cache for the answer, if not found, it sends the query to authoritative nameservers.

    • Authoritative nameservers respond with the IP address of the requested domain.

    • Recursive resolver caches the response and sends it back to the client.

    • Client now has the IP add...

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Aug 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Asked about total experience, people management, team size and type of role and organisation.
Round 3 - One-on-one 

(1 Question)

  • Q1. It was around people management, their growth, conflict and escalation management.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Nov 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Hacker rank test, normal DSA

Round 2 - One-on-one 

(2 Questions)

  • Q1. Array multiplication
  • Ans. 

    Array multiplication involves multiplying elements of an array by a scalar or another array element-wise.

    • Element-wise multiplication: Multiply corresponding elements of two arrays. Example: [1, 2, 3] * [4, 5, 6] = [4, 10, 18].

    • Scalar multiplication: Multiply each element of an array by a scalar. Example: 2 * [1, 2, 3] = [2, 4, 6].

    • Use loops or vectorized operations for efficiency in programming languages like Python or J...

  • Answered by AI
  • Q2. SQL questions, RDBMS
Round 3 - HR 

(1 Question)

  • Q1. Standard HR questions

Interview Questionnaire 

2 Questions

  • Q1. They have asked me the Java Problems in String and Arrays
  • Ans. 

    Java String and Array problems often involve manipulation, searching, and sorting of data structures.

    • 1. String Manipulation: Use methods like substring(), concat(), and replace(). Example: 'Hello'.substring(1, 4) returns 'ell'.

    • 2. Array Sorting: Use Arrays.sort() to sort arrays. Example: int[] arr = {3, 1, 2}; Arrays.sort(arr); results in {1, 2, 3}.

    • 3. Searching: Use Arrays.binarySearch() for sorted arrays. Example: int ...

  • Answered by AI
  • Q2. Asked questions in Database like MySQL and MongoDB

Top trending discussions

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Interview Tips & Stories
1w
toobluntforu
·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Apr 2024, where I was asked the following questions.

  • Q1. DSA question on Array
  • Q2. Calender based DSA question
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Basic questions on maths related parts and analysis skills

Round 2 - Coding Test 

Coding questions from various Data Structure parts like linkedList stack queue

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Aptitude test covering all technical questions

Round 3 - Technical 

(1 Question)

  • Q1. Profile related technical
Round 4 - Behavioral 

(2 Questions)

  • Q1. Salary negotiation and policy brief
  • Q2. Salary negotiation and policy brief given

Interview Preparation Tips

Interview preparation tips for other job seekers - All the best. Do not panic. Give calmly your hundred percent.

Checkpoint Systems Interview FAQs

How many rounds are there in Checkpoint Systems interview?
Checkpoint Systems interview process usually has 2-3 rounds. The most common rounds in the Checkpoint Systems interview process are One-on-one Round, Technical and HR.
How to prepare for Checkpoint Systems interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Checkpoint Systems. The most common topics and skills that interviewers at Checkpoint Systems expect are Business Development, Area Sales, CCTV, Electronic Security and RFID.
What are the top questions asked in Checkpoint Systems interview?

Some of the top questions asked at the Checkpoint Systems interview -

  1. They have asked me the Java Problems in String and Arra...read more
  2. How to transfer object from one thread to another thr...read more
  3. How do you find middle of linkedl...read more

Tell us how to improve this page.

Overall Interview Experience Rating

3.4/5

based on 7 interview experiences

Difficulty level

Easy 20%
Moderate 80%

Duration

Less than 2 weeks 80%
2-4 weeks 20%
View more

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Checkpoint Systems Reviews and Ratings

based on 39 reviews

3.1/5

Rating in categories

2.9

Skill development

3.3

Work-life balance

3.1

Salary

2.8

Job security

2.8

Company culture

2.5

Promotions

2.8

Work satisfaction

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