Advertisements
Advertisements
प्रश्न
Explain Virus Detection, Removal and Prevention
Discuss Virus Detection, Virus Removal and Prevention Philosophies
उत्तर
Explanation:
(1) Virus detection
(i) Normally virus detection program checks integrity of binary files. It maintains a checksum on each file. At regular frequency detection program calculates checksum and matches with original one. If there is mismatch then that program may be infected.
(ii) Some programs reside in the memory and continuously monitor memory and I/O operations against virus.
(2) Virus removal
There are some viruses whose bit pattern in the code can be predicted. The virus removal program scans the disk for the patterns of known viruses and on detection it removes them.
(3) Virus prevention
For prevention of virus the user can take the following precautions
(i) Always buy legal copies of software.
(ii) Take frequent backups of data
(iii) Run monitor programs frequently to detect virus.
APPEARS IN
संबंधित प्रश्न
What is Virtual Memory?
What is System Call ? List any two System Calls for Memory Management, Process Management and Information Management.
The time lost in turning the attention of processor from one process
to another is called as ________
(i) Circuit Switching
(ii) Band Width
(iii) Context Switching
(iv) Packet Switching
State any four Memory Management System.
State the various steps involved in the allocation of partition in case of fixed partition memory management.
Explain the function of the following in Operating system:
1) Virus Detection
2) Virus Removal
3) Virus Prevention
Complete the following activity.
List out any two uses of the Operating System?
From the options given below, choose the operations managed by the operating system.
Differentiate Save and Save As option.
