Related Questions

A program that can copy itself and infect a computer without the permission or knowledge of the owner is called
A Java
B C + +
C Virus
D SPSS
What term Is used to denote a type of computer malware that can spread and infect other computers on a network without any user Intervention?
A VIma
B Worm
C Trojan hone
D Spywnre
At a photocopy center , the first 10 copies cost x taka each. Each of the next 50 copies costs 2 taka less per copy . From the 61 st copy on, the cost 1 Taka per copy, In terms of x how much does it cost in. Taka to have 200 copies made/
A 10x+240
B 50x-10
C 50(x-5)
D 60x+140
A program that neither replicates or copies itself, but does damage or compromises the security of the computer. Which 'Computer Virus' it is?
A Joke Program
B Worm
C Trojan
D Hoax
What command is used with file named 'letter' to remove the executable permission from the user and assign read permission to the group and others?
A chmod go + x, u - x letter
B chmod g - x, uo + r letter
C chmod go + r, u + x letter
D chmod u - x, go + r letter
E None of the above
Which of the following commands is used to absolutely assign all permissions to the owner, read and write permissions to the group and only executable permission to the others of the file note?
A chmod 761 note
B chmod 671 note
C chmod 167 note
D chmod 4=rwx, g=rw note
E None of the above
Which of the following commands is used to assign executable permission to the owner of the file named "note"?
A chmod g+x note
B chmod u+w note
C chmod u+x note
D chmod ugo+x note
E None of the above
What command is used to assign executable permission to the owner of the file named "letter"?
A chmod ugo + x letter
B chmod u + x letter
C chmod u + w letter
D chmod g + x letter
E None of the above
Consider a company that assembles computers. The probability of a faulty assembly of any computer is p. The company therefore subjects each computer to a testing process. This testing process gives the correct result for any computer with a probability of q. What is the probability of a computer being declared faulty?
A pq + (1 - p) (1 - q)
B (1 - q)p
C (1 - p)q
D pq
A machine can copy six pages in 9 seconds. How many pages can it copy in 24 minutes?
A 12
B 16
C 36
D 960

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