Cisco Cloud Engineer 1 Interview Questions and Answers

Round duration - 40 minutes
Round difficulty - Easy

Technical round with questions based on DSA.

Q1. 
Reverse a Number Problem Statement
Create a program to reverse a given integer N. The output should be the reversed integer.
Note:
If a number has trailing zeros, their reversed version should not inclu...read more
Ans. 
Reverse a given integer while excluding trailing zeros.
• Create a program to reverse the given integer by converting it to a string and then reversing it.

• Remove any trailing zeros from the reversed string before converting it back to an integer.

• Handle the constraints of the input integer being between 0 and 10^8.

• Example: For input 1230, the output should be 321.
Answered by AI
View 1 more answer
Q2. 
Reverse a Linked List Problem Statement
You are given a Singly Linked List of integers. Your task is to reverse the Linked List by changing the links between nodes.
Input:
The first line of input contai...read more
Ans. 
Reverse a given singly linked list by changing the links between nodes.
• Iterate through the linked list and reverse the links between nodes.

• Use three pointers to keep track of the current, previous, and next nodes.

• Update the links while traversing the list to reverse it.

• Return the head of the reversed linked list.
Answered by AI
Add your answer
Q3. What is the difference in C++ between 'new int[5]' and 'malloc(5 * sizeof(int))'?
Ans. 
new int[5] is C++ specific and initializes the array with default values, while malloc(5 * sizeof(int)) is a C function and does not initialize the array.
• new int[5] is C++ specific and calls constructors for each element in the array.

• malloc(5 * sizeof(int)) is a C function and does not call constructors, leaving the array uninitialized.

• new int[5] returns a pointer to the first element of the array, while malloc(5 * siz...read more
Answered by AI
Add your answer

Q1. Tell me about yourself.
Add your answer

Coding test realted to c or cpp will be taken.

Q1. Technical question realted to 4G and 5G NR will be asked.
Add your answer

Q1. Technical 2 round questions realted to programming language you need to write and explain.
Add your answer

Q1. About youself and then salary discussion
Add your answer

Q1. Trie based question
Add your answer
Q2. Design LRU cache
Ans. 
Design a data structure for LRU cache with get and put operations, evicting least recently used item when capacity is reached.
• Implement a doubly linked list to keep track of the order of keys based on their usage

• Use a hashmap to store key-value pairs for quick access

• Update the order of keys in the linked list when a key is accessed or inserted

• Evict the least recently used item when the cache reaches its capacity
Answered by AI
Add your answer

Q1. Unique ID generator
Ans. 
A unique ID generator creates distinct identifiers for entities, ensuring no duplicates across a system.
• Use UUIDs (Universally Unique Identifiers) for global uniqueness. Example: '550e8400-e29b-41d4-a716-446655440000'.

• Timestamp-based IDs can ensure uniqueness over time. Example: '20231005123000' for a timestamp.

• Combining user-specific data with random elements can create unique IDs. Example: 'user123-abc456'.

• Consider u...read more
Answered by AI
Add your answer
Q2. Project related questions
Add your answer

Q1. Operating systems, DBMS
Add your answer
Q2. Few question on projects from my previous company
Add your answer

Q1. Javascript basics - event loop, type conversion, call apply bind
Add your answer

Q1. Design discussion, current project
Add your answer