Question Discussion & Solution

The correct answer is 1-B, 2-A, 3-D, 4-C.

Key Points

Additional Information

The correct answer is the save as.

• Using the F12 key in MS Word, Save as dialogue box opens​.

​Key Points

• F12 key used with other keys in MS word:​.
  • Ctrl+F12 
    • ​Opens a document in Word.
  • Shift+F12 
    • Saves the Microsoft Word document (like Ctrl+S).
  • Ctrl+Shift+F12
    • Prints a document in Microsoft Word.

Additional Information

• Keys for performing a mail merge
  • Preview a mail merge
    • ​ALT + SHIFT + K
  • ​Merge a document
    • ​ALT + SHIFT + N
• ​Insert Table
  • ​To open the Insert tab to insert tables, pictures, and shapes, headers, or text boxes.
    • Alt+N
• Insert Picture
  • ​The shortcut key to import a picture is Ctri+G

The correct answer is Prime minister.

Key Points

• Prime Minister is the ex-officio chairman of the NITI Aayog in India.
• NITI Aayog is an executive body, that was established by the government in 2015, through an executive resolution.
• The newly created body replaced the erstwhile planning body- the Planning Commission of India.
• The term NITI stands for National Institution for Transforming India.
• NITI Aayog is a think tank that advises the government in policy formulation, unlike the Planning commission which was empowered to allocate and distribute funds for the planning.
• NITI Aayog's main focus areas are cooperative & competitive federalism, decentralized planning, scenario planning, capacity building, etc.

Additional Information

• Full-Time Organisational Framework:
  • Chairman: Prime Minister
  • Vice Chairperson: Rajiv Kumar
  • Chief Executive Officer (CEO)- Shri Amitabh Kant
  • Full-Time members- Shri VK Saraswat (former DRDO Chief), Prof. Ramesh Chand (Agriculture Expert), and Dr. VK Paul (Public Health expert)
  • Ex-officio members: maximum 4 
  • Special Invitees: Experts and practitioners as appointed by the Prime Minister.

Answer: Option 3

Concept:

Tree:

• A tree consists of nodes or vertices that store information and often are labeled by a number or a letter.
• A tree consists of directed edges or undirected edges or both.
• The number of subtrees of a node is called its degree.
• A leaf or a terminal node is a node of degree zero
• A node that is not a leaf is called an interior node or an internal node
• The degree of a node is the number of its children. The degree of a tree is the maximum degree of any of its nodes.

Ancestors of a node in a Tree: 

The ancestor nodes of a node are all parent nodes of that particular node.

Explanation: 

Consider the following Binary Tree 

Every node except the root node (A) has ancestors.

Hence in a tree, the only node that has no ancestors is the root node. (only one node possible)

Additional Information

Full Binary Tree: 

A full binary tree is a binary tree in which each node has exactly two or 0 children.

Complete Binary Tree:

A complete binary tree is a binary tree in which

1. except last level tree is completely filled.
2. The last level is filled from left to right.

Perfect Binary Tree: 

A perfect binary tree is a binary tree in which

1. all interior node or internal nodes has 2 children.
2. all leaves are at the same level.

Balanced Binary Tree: 

A Balanced Binary tree is a binary tree in which at any node height of the left subtree and right subtree do not differ by more than 1.

Important Points

1. A tree with n nodes has n - 1 edge.

2.  consider a nonempty binary tree with n0 leaves and n2 nodes of degree two (internal nodes). Then
n0 = n2 + 1
Applications of Trees: 
1. Huffman Coding
2. Evaluation of Arithmetic Expressions using Expression trees

The correct answer is a Business database.

Key Points

Business Database:

• A business database contains business customers’ past purchases; past volumes, prices, and profits.
•  It also contains buyer team remembers names (and ages, birthdays, hobbies, and favorite foods); status of current contacts; an estimate of supplier’s share of the customer’s business; competitive suppliers; assessment of competitive strengths and weakness in selling and servicing the account; and relevant customer buying practices, patterns, and policies.
• It is considered as a cloud where all the information is stored and kept for use.