Disk access is way slower than
memory access. Caching is a technique to improve the disk access time. Block cache is a caching technique which
reduces disk accesses time. Here a
portion of disk is bought to cache for reading and a modified blocks are first
changed in cache but reflected in the disk at one go. On the other hand with write through caching
each modified block is written to cache and at the same time it is written to
the disk. Write- through caching
requires more disk I/O so they can have a negative effect on the performance.
Answer: True
Explanation:
TCP is the transmission control protocol which and TCP ACK is the transmission control handshake method which are used by TCP. It basically indicates the next sequence number in the method when the flag is set.
Firstly, the ACK (Acknowledge) send by the each end for the initial sequence number itself but it does not contained any type of data. In the TCP segment header ACK contain 32 bit field.
The acknowledgement is just a proof to clients that ACK is a specific to the SYN when the clients initiate.
Modification is the name given to an attack that makes changes into original data such as users manually modifying data, programs processing and changing data, and equipment failures.
In modification attacks, only changes are made to original data without deleting it completely. Modification is basically a type of attack in the context of information security. This type of attack creates annoying situations and discords by altering existing data in data files, inserting new false information in the network and reconfiguring network topologies and system hardware.
Modification attack is mainly mounted against sensitive and historical data. Modification attacks target integrity of the original data with an intent of fabricating it.
You can learn more about ha-cker attack at
brainly.com/question/14366812
#SPJ4
Answer:
Eraser tool -removes the unwanted part of the drawing.
Row -horizontal space running from left to right.
Text -Primary component of a multimedia.
Drawing Area -Working are of ms point program.
I hope this helps!! Correct me plz if I'm wrong. If I'm right, could you mark me as brainliest?
