Juniper Networks Software Designer Interview Questions and Answers

Q1. Java basics , oops , spring
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Q1. Manger round basics behavior
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Q1. Find the memory of the given structure (Struct padding is the hint)
Ans. 
The question asks to find the memory of a given structure by considering struct padding.
• Struct padding refers to the unused bytes added to align the members of a structure.

• To find the memory of a structure, we need to consider the size of each member and the padding added.

• The total memory of a structure is the sum of the sizes of its members and the padding.
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Q2. Write code to find the position of a number in a BST
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Code to find the position of a number in a BST
• Implement a recursive function to traverse the BST

• Compare the target number with the current node value

• If the target is smaller, go to the left subtree; if larger, go to the right subtree

• Repeat until the target is found or the subtree is null
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Q3. Create a Trie data structure and perform insertion and search on it.
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A Trie is a tree-like data structure used for efficient retrieval of strings. It supports insertion and search operations.
• A Trie is also known as a prefix tree.

• Each node in the Trie represents a character.

• The root node represents an empty string.

• Each node can have multiple children, each representing a different character.

• Insertion involves traversing the Trie and creating new nodes as needed.

• Search involves traversing...read more
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Q1. Ds implementation in python
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Data structure implementation in Python
• Use built-in data structures like lists, dictionaries, sets, etc.

• Implement custom data structures like linked lists, stacks, queues, trees, etc.

• Utilize libraries like NumPy for efficient array operations

• Practice implementing algorithms using data structures
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Q1. Leetcode medium python question
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Basic java mcq, Java Hibernate Spring MVC framework questions

Q1. Work experience over last company
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Q2. Conflict resolution in teams
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Conflict resolution in teams involves effective communication, active listening, compromise, and collaboration.
• Encourage open communication to address issues early on

• Practice active listening to understand all perspectives

• Seek compromise and find common ground

• Encourage collaboration to work towards a solution together
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1 hr, oops, C++ questions and C

Q1. Transformer is a static device and transfer power one from to another form current
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Q2. Current transformer is a series conection and step up to high voltage
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Q3. There are three function of smart grid electrical protection isolation and control
Ans. 
The three functions of smart grid electrical protection isolation and control are fault detection, fault isolation, and service restoration.
• Fault detection involves identifying any issues in the electrical system.

• Fault isolation involves isolating the faulty component to prevent further damage.

• Service restoration involves restoring power to the affected area as quickly as possible.

• Examples of smart grid technologies th...read more
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Q4. Current is a flow in wire
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Yes, current is the flow of electric charge in a wire.
• Current is measured in amperes (A).

• It is caused by the movement of electrons in a conductor.

• The direction of current flow is from positive to negative.

• Current can be either direct current (DC) or alternating current (AC).
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Q5. Faraday law is a electro magnetic field induction working
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Q6. Ohm's law is current between directly proportional voltage
Ans. 
Ohm's law states that current is directly proportional to voltage.
• Current increases as voltage increases

• Resistance remains constant

• Can be expressed as I = V/R
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SQP, PRS, SRT, TUV, is right answer VXW

Q1. What is incremental load and how it works?
Ans. 
Incremental load is a process of updating a data warehouse or database by adding only the new or modified data.
• Incremental load is used to minimize the amount of data that needs to be processed and loaded.

• It involves identifying the changes in the source data and applying those changes to the target system.

• Common techniques for incremental load include using timestamps, change data capture, or comparing checksums.

• For e...read more
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Q2. What is the differences between keep and join ?
Ans. 
Keep and join are both used in programming, but they have different meanings and purposes.
• Keep is a method used to filter elements from a collection based on a condition.

• Join is used to combine elements from two or more collections based on a common attribute.

• Keep returns a new collection with only the elements that satisfy the condition.

• Join combines elements from multiple collections into a single collection.

• Keep is ...read more
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Q3. What is synthetic Key and how to remove them ?
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A synthetic key is a composite key created when two or more tables have multiple common fields.
• Synthetic keys occur when there is a many-to-many relationship between tables.

• They can be removed by resolving the underlying data model issues.

• One way to remove synthetic keys is by creating a bridge table to represent the many-to-many relationship.

• Another approach is to concatenate the common fields to create a unique key.

• S...read more
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