2. What control character signals the end of the input file ?
ctrl + s
ctrl + z
ctrl + w
ctrl + d
Answer: Option D
3. Kernel is known as core of operating system.
True
False
Answer: Option A
4. Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time, this is known as ?
Buffer cache
Spooling
Pooling
Virtual Memory
Answer: Option A
5. printer in the file structure can be found in ?