I can help with two.
Web Scripting Virus, A sneaky virus that targets popular websites. What this virus does is overwrite code on a website and insert links that can install malicious software on your device. Web scripting viruses can steal your cookies and use the information to post on your behalf on the infected website.
FILE INFECTOR, targeting executable files (.exe), file infector viruses slow down programs and damage system files when a user runs them.
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.
I don’t really understand what you are trying to ask. Try posting a picture along with your question
\\\\\\\\\\\\\\\\\\\\\\\\\Operating system///////////////////////
Is the Answer
Answer:
The <embed> HTML element embeds external content at the specified point in the document. This content is provided by an external application or other source of interactive content such as a browser plug-in.
Explanation: