Question
Which file structure allows for efficient retrieval of
data using a hierarchical model?Solution
A Hierarchical File structure organizes data in a tree-like model where records are arranged in a parent-child hierarchy. This allows for efficient data retrieval by following parent-child relationships, making it suitable for representing hierarchical data like organizational structures. a) Sequential File structures data in a linear order, which is not hierarchical. b) Indexed File provides efficient retrieval using indexes but is not specifically hierarchical. c) Direct Access File allows for data retrieval based on a key but does not organize data hierarchically. e) Relational File refers to a relational database structure, not a hierarchical file system.
In a certain code language, SAFETY is written as 21 – 3 – 8 – 7 – 22 – 27. How will FRIEND be written in that code language?
...If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then what is the value of the expression:
54 B 54 A 27 B 8 D...
Read the given statements and decide which of the conclusions given in the options logically follow from the statements.
Statements:
I. ...
In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number on the right side of (-) wi...
In a certain code RAINBOW is written as VNAMHZQ. How is SEMINAR written in that code?
Six boxes labelled L, M, N, O, P, and Q, are arranged vertically from top to bottom. The top position is considered the 1st position, whereas the bottom...
How many pairs of letters are there in the word ‘FARMHOUSE’ each of which have as many letters between them (both forward and backward direction) in...
If in a certain language KINDLE is coded as ELDNIK, how is FASHION coded in that code?
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
PNNA, RPPE, TRRI, VTTO, ?
What is the code of “Recommendation Ruled”?
