NCO- Cyber Olympiad (SOF) Class 12: Questions 374 - 378 of 518
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Question 374
Appeared in Year: 2014
Question MCQ▾
Which of the following statement is INCORRECT about radio wave transmission? (SET-B)
Choices
Choice (4) | Response | |
---|---|---|
a. | It offers a secure communication. | |
b. | It offers mobility. | |
c. | It uses radio frequencies. | |
d. | It is susceptible to weather conditions like rains, thunder, storms, etc. |
Question 376
Appeared in Year: 2014
Question MCQ▾
Identify the type of virus. (SET-B)
- It is the Trojan horse virus.
- It was discovered in September 2013.
- It encrypts the file on a user՚s hard drive and then prompts them to pay a ransom in order to receive the decryption key.
Choices
Choice (4) | Response | |
---|---|---|
a. | DecryptLocker | |
b. | Heartbleed | |
c. | Shamoon | |
d. | CryptoLocker |
Question 377
Question MCQ▾
Which type of a computer virus that stores itself within memory allowing it to infect other files even when the originally infected program has been terminated?
Choices
Choice (4) | Response | |
---|---|---|
a. | Non-Resident | |
b. | Multipartite | |
c. | Real Time | |
d. | Resident |
Question 378
Appeared in Year: 2014
Question MCQ▾
Data manipulation language enables a user to access or manipulate data. Which of the following functions is NOT performed by it? (SET-B)
Choices
Choice (4) | Response | |
---|---|---|
a. | Deleting information from the database. | |
b. | Altering the structure of the database. | |
c. | Inserting new information in the database. | |
d. | Retrieving the information stored in the database. |