Match the List-I with List-II LIST I — Malware types LIST II — Characteristics…
2024
Match the List-I with List-II
LIST I — Malware types | LIST II — Characteristics |
|---|---|
A. Trapdoor | I. Produces varying but operationally equivalent copies of itself |
B. Time Bomb | II. Code that allows unauthorized quick access at a later time. |
C. Polymorphic Virus | III. Instructions interpreted rather than executed |
D. Macro virus | IV. Triggers action when specified time occurs |
Choose the correct answer from the options given below:
Answer: B. A-II, B-IV, C-I, D-III — ConceptMalware families are distinguished by the mechanism that activates them or by the way their code behaves. A trapdoor provides concealed later access; a…
- A.
A-III, B-IV, C-I, D-II
- B.
A-II, B-IV, C-I, D-III
- C.
A-I, B-II, C-III, D-IV
- D.
A-II, B-I, C-IV, D-III
Attempted by 14 students.
Show answer & explanation
Correct answer: B
Concept
Malware families are distinguished by the mechanism that activates them or by the way their code behaves. A trapdoor provides concealed later access; a time bomb uses a time condition; a polymorphic virus changes its code while preserving its function; and a macro virus consists of macro instructions interpreted by a host application.
Application
Apply each defining mechanism to the descriptions in List II:
Malware type | Defining mechanism | List-II label |
|---|---|---|
Trapdoor | Concealed access that can be used later | II |
Time Bomb | Activation at a specified time | IV |
Polymorphic Virus | Varying but operationally equivalent copies | I |
Macro virus | Macro instructions interpreted by the host application | III |
Cross-check and contrast
Cross-check the near-miss sequences by locating the mismatched mechanisms:
A-III, B-IV, C-I, D-II assigns interpreted instructions to Trapdoor and later access to Macro virus.
A-I, B-II, C-III, D-IV assigns mutation to Trapdoor and later access to Time Bomb.
A-II, B-I, C-IV, D-III assigns mutation to Time Bomb and time activation to Polymorphic Virus.
Therefore, the complete matching is A-II, B-IV, C-I, D-III.