According to the given question, sales is a two-dimensional array and contains 10 rows and 7 columns wherein each component is of type integer and the variables sum and j are also of integer type.
<u>Explanation:</u>
In order to find the sum of the elements of the fifth row of sales, the correct piece of code should be:
sum=0;
for(j=0;j<7;j++)
sum=sum+sales[4][j];
The indexing in an array always starts from zero, therefore, to calculate the sum of the fifth row, the user has to write 4 in the index to point to the fifth row.
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:
Direct data access reduces the speed of retrieving data from memory or storage. Retrieving data and storing it in a cache memory provides direct access to data in the storage.
Explanation:
Sequential memory access, as the name implies, goes through the memory length location in search of the specified data. Direct memory access, provides a memory location index for direct retrieval of data.
Examples of direct and sequential memory access are RAM and tapes respectively. Data in sequential memory access can be access directly by getting data in advance and storing them in cache memory for direct access by the processor.
CLOB stands for character large objects, which are used to store string data too large to be stored in a VARCHAR column
