Skip to content
Placement Papers - Free Placement Papers for Top CompaniesPlacement Papers - Free Placement Papers for Top CompaniesPlacement Papers

Cisco Placement Papers 2025

Overview

This page is a working set of Cisco placement papers from 2025: from student reports questions, the 2025 online assessment pattern, and step-by-step solutions. Use it to see what Cisco actually asked in the latest cycle, how hard the rounds were, and which themes (DSA, system design, aptitude, or role-specific topics) mattered most. Practice the problems below under timed conditions, then cross-check with the interview and preparation guides if you are targeting an upcoming Cisco drive.

Download 2025 Placement Papers

Cisco 2025 paper 1

Latest Cisco placement paper with coding problems and solutions

Cisco 2025 paper 2

Additional 2025 Cisco paper with detailed solutions

Cisco 2025 paper 3

Another 2025 Cisco paper with comprehensive solutions

Cisco Online Assessment 2025 pattern

The 2025 exam pattern remains similar to 2024. For detailed exam pattern, see 2024 Papers.

Note: The pattern may have minor variations. Check the latest updates from the company.

Cisco Placement Papers 2025 - actual questions & solutions

This section contains practice questions styled on Cisco placement papers 2025 (recent-cycle pattern), with worked solutions. Use them as timed sectional drills - from student reports drives vary by college and role, so treat this as a high-signal practice bank, not an official paper dump.

Question 1: two sum

Show solution

Problem Statement: Given an array of integers and a target, return indices of two numbers that add up to target.

Example:

Input: nums = [2, 7, 11, 15], target = 9
Output: [0, 1]

Solution (Java):

public int[] twoSum(int[] nums, int target) {
    Map<Integer, Integer> map = new HashMap<>();
    for (int i = 0; i < nums.length; i++) {
        int need = target - nums[i];
        if (map.containsKey(need)) return new int[]{map.get(need), i};
        map.put(nums[i], i);
    }
    return new int[]{};
}

Time Complexity: O(n)
Space Complexity: O(n)

Question 2: merge two sorted lists

Show solution

Problem Statement: Merge two sorted linked lists and return a new sorted list.

Example:

Input: 1→2→4 , 1→3→4
Output: 1→1→2→3→4→4

Solution (Java):

public ListNode mergeTwoLists(ListNode a, ListNode b) {
    ListNode dummy = new ListNode(0), cur = dummy;
    while (a != null && b != null) {
        if (a.val <= b.val) { cur.next = a; a = a.next; }
        else { cur.next = b; b = b.next; }
        cur = cur.next;
    }
    cur.next = (a != null) ? a : b;
    return dummy.next;
}

Time Complexity: O(n + m)
Space Complexity: O(1)

Question 3: rotate array right by k

Show solution

Problem Statement: Rotate the array to the right by k steps.

Example:

Input: [1,2,3,4,5,6,7], k = 3
Output: [5,6,7,1,2,3,4]

Solution (Java):

public void rotate(int[] nums, int k) {
    k %= nums.length;
    reverse(nums, 0, nums.length - 1);
    reverse(nums, 0, k - 1);
    reverse(nums, k, nums.length - 1);
}
void reverse(int[] a, int l, int r) {
    while (l < r) { int t = a[l]; a[l++] = a[r]; a[r--] = t; }
}

Time Complexity: O(n)
Space Complexity: O(1)

Question 4: valid parentheses

Show solution

Problem Statement: Given a string of brackets, determine if it is valid.

Example:

Input: "()[]{}"
Output: true

Solution (Java):

public boolean isValid(String s) {
    Deque<Character> st = new ArrayDeque<>();
    Map<Character, Character> pair = Map.of(')', '(', ']', '[', '}', '{');
    for (char c : s.toCharArray()) {
        if (pair.containsValue(c)) st.push(c);
        else if (st.isEmpty() || st.pop() != pair.get(c)) return false;
    }
    return st.isEmpty();
}

Time Complexity: O(n)
Space Complexity: O(n)

Question 5: reverse a string

Show solution

Problem Statement: Given a string, return it reversed.

Example:

Input: "placement"
Output: "tnemecalp"

Solution (Java):

public String reverse(String s) {
    return new StringBuilder(s).reverse().toString();
}

Time Complexity: O(n)
Space Complexity: O(n)

Question 6: check palindrome

Show solution

Problem Statement: Return true if the string reads the same forward and backward (ignore case).

Example:

Input: "Level"
Output: true

Solution (Java):

public boolean isPalindrome(String s) {
    s = s.toLowerCase();
    int i = 0, j = s.length() - 1;
    while (i < j) {
        if (s.charAt(i++) != s.charAt(j--)) return false;
    }
    return true;
}

Time Complexity: O(n)
Space Complexity: O(1)

Question 7: detect cycle in linked list

Show solution

Problem Statement: Return true if the linked list has a cycle.

Example:

Input: 3→2→0→-4→(back to 2)
Output: true

Solution (Java):

public boolean hasCycle(ListNode head) {
    ListNode slow = head, fast = head;
    while (fast != null && fast.next != null) {
        slow = slow.next;
        fast = fast.next.next;
        if (slow == fast) return true;
    }
    return false;
}

Time Complexity: O(n)
Space Complexity: O(1)

Question 8

Q8: Which data structure uses FIFO order?

Solution:

FIFO = First In First Out → Queue. Stack is LIFO.

Answer: Queue

Question 9

Q9: Time complexity of binary search on a sorted array of n elements is?

Solution:

Each step halves the search space → O(log n).

Answer: O(log n)

Question 10

Q10: Which protocol is connection-oriented at the transport layer?

Solution:

TCP is connection-oriented; UDP is connectionless.

Answer: TCP

Question 11

Q11: Which normal form removes transitive dependency?

Solution:

1NF: atomic values. 2NF: no partial dependency. 3NF: no transitive dependency.

Answer: 3NF

Hiring volume

2025 Data: Cisco is actively hiring 600-1200 candidates in 2025. The company is conducting placement drives at 60+ colleges across India.

Salary packages

2025 Packages: ₹20-30 LPA for freshers (updated packages)

Process updates

2025 Updates: Latest assessment tools, improved interview process

Key insights from 2025 Cisco Online Assessment

  1. Coding Section is Critical: Must solve 2-3 coding problems correctly to advance
  2. Technical MCQs: Strong emphasis on networking concepts, CS fundamentals, and system design
  3. Time Management: 2-3 coding problems in 60-90 minutes + 15-20 technical MCQs in 30-40 minutes + 10-15 aptitude in 20-30 minutes
  4. Success Rate: Only 15-20% cleared OA and advanced to interviews
  5. Platform: Cisco’s assessment platform or HackerRank
  6. Focus Areas: DSA, algorithms, networking concepts, system design, cloud networking
  7. Enhanced Emphasis: Optimal solutions and cloud networking

Cisco 2025 interview experiences

Based on recent candidate experiences from 2025 Cisco interviews:

2025 Interview Process:

  1. Online Assessment (90-120 minutes): Coding (2-3 problems) + Technical MCQs (15-20) + Aptitude (10-15)
  2. Technical Phone Screen (45-60 minutes): Coding problems, networking concepts, cloud networking, system design
  3. Onsite/Virtual Interviews (3-4 rounds, 45-60 minutes each):
  • Coding rounds (1-2): Algorithms, data structures, problem-solving
  • Technical rounds: Networking protocols, cloud networking, system design, Cisco technologies
  • HR round: Behavioral questions, company fit

2025 Interview Trends:

  • Increased emphasis on cloud networking and SDN (Software-Defined Networking)
  • More focus on optimal solutions and network security
  • Enhanced behavioral questions about adaptability and learning
  • Questions about cloud infrastructure and network automation

Common 2025 Interview Topics:

  • Coding: Arrays, strings, trees, graphs, dynamic programming, network algorithms
  • Networking: TCP/IP, routing protocols, network security, cloud networking, SDN
  • Behavioral: Problem-solving approach, teamwork, motivation, adaptability
  • Cisco Technologies: Networking equipment, protocols, security solutions, cloud networking

Success Tips:

  • Strong coding performance is essential - solve problems optimally
  • Understand networking concepts, cloud networking, and SDN
  • Practice system design for network systems and cloud infrastructure
  • Prepare behavioral examples using STAR format
  • Learn Cisco technologies, cloud networking, and network automation

For detailed interview experiences from 2025, visit Cisco Interview Experience page.

Preparation tips for Cisco 2025 pattern

  1. Master Coding Fundamentals: Focus on solving 2-3 coding problems correctly - arrays, trees, graphs, DP
  2. Networking Knowledge: Strong understanding of networking concepts, TCP/IP, routing protocols, cloud networking
  3. Practice Previous Year Papers: Solve Cisco OA papers from 2020-2025 to understand evolving patterns
  4. Time Management: Practice completing 2-3 coding problems in 60-90 minutes
  5. Technical MCQs: Practice CS fundamentals, networking concepts, cloud networking, system design
  6. LeetCode Practice: Solve 200+ LeetCode problems focusing on arrays, strings, trees, graphs (medium-hard difficulty)
  7. Networking Practice: Learn networking protocols, network security, cloud networking, SDN
  8. Cisco Technologies: Learn Cisco networking equipment, protocols, security solutions, cloud networking
  9. Behavioral Preparation: Prepare examples using STAR format - leadership, teamwork, adaptability
  10. Mock Tests: Take timed practice tests to improve speed and accuracy
  11. Cloud Networking: Understand cloud infrastructure, SDN, network automation

Comments & Suggestions

2024 papers

Coding questions

Interview experience

Preparation guide

Cisco hub

Similar companies

Intel · Qualcomm · Nvidia · IBM · Oracle · Samsung