Answer:
The answer is below
Explanation:
a)
If the blocks of a file are not put together, that is for nonadjacent block of files to each other, the time (t) taken to read a 100 block file is:
t = (average seek + rotational latency + transfer time) * 100 block
Average seek = 5 msec, rotational latency = 10 msec and transfer time = 20 microsec = 0.02 msec
t = (5 + 10 + 0.02) * 100 = 1502 msec
b)
If the blocks of a file are put together, that is for adjacent block of files to each other, the time (t) taken to read a 100 block file is:
t = (seek time * mean interblock distance + rotational latency + transfer time) * 100 block
seek time = 100 microsec = 0.1 msec, rotational latency = 10 msec and transfer time = 20 microsec = 0.02 msec, mean interblock distance = 2 cylinders
t = (0.1*2 + 10 + 0.02) * 100 = 1022 msec
Answer:
It's a compact way of doing an if-else statement.
General Format is
<<em>condition</em>> ? <if condition is true> : <else>;
Example:
I could rewrite:
if(a==1) temp = 1;
else temp = 999;
as
temp = (a==1) ? 1 : 999;
Protection from viruses, worms, and other threats
Answer:
AND
The <u>AND </u>operator will cause a record to be selected only if two or more
conditions are satisfied.
Malware,
Advanced persistent threats,
Distributed denial-of-service attacks.
<h3>
What are the threats of networks?</h3>
- There are different kinds of network threats, and each has different goals. Some, like distributed denial-of-service (DDoS) attacks, seek to shut down your network or servers by overwhelming them with requests.
- Other threats, like malware or credential theft, are aimed at stealing your data.
To learn more about it, refer
to brainly.com/question/23275071
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