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3 years ago

For an external usb hard drive attached to a computer, which is more suitable: a writethrough cache or a block cache

2 answers:

6 0

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.

Stolb23 [73]3 years ago

3 0

Answer:

block cache

Explanation:

An integrated cache is a layer of memory that automatically caches frequently accessed data through the source database.

Block cache is used to store blocks read from disks. This means that a small buffer cache will cause Oracle to cache data blocks following the LAST RECENTLY USED list, and depending on how often this happens, can lead to a drop in performance.

There is no magic to sizing the block cache, what you usually do is estimate an initial size and monitor the hit, if it is not optimal, you will need to lengthen and repeat the monitoring cycle.

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In science class, Patricia is giving a presentation on the different types of flowers in her community. As part of her presentat

HACTEHA [7]

Answer:

a diagram

Explanation:

Giving presentation is one of the methods of imparting information and knowledge about a certain topic. For this purpose the visual aids like images, videos, maps and diagrams are used for better dispersal of the information. A diagram is a visual representation of a certain topic that helps in the detailed analysis.

In the given excerpt, Patricia has used a diagram to highlight the basic structure and parts of the flower.

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3 years ago

Drag each label to the correct location on the image.

expeople1 [14]

Answer:

Black is the absence of all light. Things appear black when they do not reflect or emit light. White is the presence of all colors of visible light. Objects appear white when they reflect or emit all wavelengths of visible light (or at least three wavelengths - Red, Blue and Green - in equal intensity).

Explanation:

6 0

3 years ago

TECHNICAL TERMS: the adderess of a website

riadik2000 [5.3K]

Yes very interesting

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2 years ago

What is the impact of information technology in your daily life?

yawa3891 [41]

Technology affects people's lives differently.
Some are bad and some are good.
But for me, technology gives us a chance to collaborate and connect even if we are miles away.
People are opening their mind to new kind of knowledge that can help us improve and grow.

3 0

3 years ago

Implement a recursive method named power that takes 2 integer parameters named base and expo. The method will return the base ra

nika2105 [10]

Answer:

def power(base, expo):

if expo == 0:

return 1

else:

return base * power(base, expo-1)

Explanation:

*The code is in Python.

Create a method called power that takes base and expo as parameters

Check if the expo is equal to 0. If it is return 1 (This is our base case for the method, where it stops. This way our method will call itself "expo" times). If expo is not 0, return base * power(base, expo-1). (Call the method itself, decrease the expo by 1 in each call and multiply the base)

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3 years ago