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Answer:
B. Protection
Explanation:
It is the protection tab. We can protect a cell from being changed or altered by any other user of the excel sheet using the protection tab. We only need to select the cell, and right-click, Now choose the protection tab, which will be shown. And now select locked and click ok. This cell cannot then be changed by anyone else other than you. Hence, the correct option here is the protection tab.
Answer: True
Explanation: Domain name system(DNS) is the kind of attack that exploits the functioning of the DNS .This process is also known as the DNS spoofing .The corrupted data is invoked in the cache database and thus creates spoof.
It creates diversion of the traffic from the actual servers to the fake servers and entering the exploited data in the cache database.Thus, the given statement is true.
Answer:
The system that will be more prone to attack or vulnerability is the bank that has ten branches spread throughout California with the data being stored on a mainframe in San Francisco.
Explanation:
Solution
If the databases are not shared by all the branches throughout the network, they could not be hacked or accessed easily. but when the systems are in a network and share databases or resources,then these could be more vulnerable to unauthorized persons or individuals.
The data been stored on a mainframe in San Francisco that is a centralized access by 10 branches of another bank. what this implies is that networking is involved or used to share data.
With this example, the chances of vulnerability or attacks increases from the following :
- Accounts payable could be disturbed by changing cash in payment false.
- Entering incorrect data into the system. such transactions can be altered, deleted by unauthorized persons.
- Transaction fraud like hacking, masquerading are very common in a networked system.
