Answer:
Computer science is about how computers work, in terms of programming, design and data processing.
Explanation:
Computer science is a discipline that studies issues related to information technology and its use, including the storage, processing, presentation, and transfer of information.
The fringes of computer science extend to many other sciences: for example, usability research is closely related to psychology and bioinformatics to biology, among others. Digital media research, on the other hand, has links to media science and communications research. Computer science also has a strong interaction with computational science and information society research examining the wider effects of data processing in different areas.
Full-Duplex is data flow that can travel in two directions at the same time.
Half-Duplex is data flow that can travel in two directions but not at the same time.
Simplex is data flow that can only travel in one direction.
Answer:
a) "Quit"
c) "Q only
Explanation:
Given
<em>String s = "Go"; </em>
<em>while ((!s.equals("q"))&& (!s.equals(""))) {</em>
<em>System.out.println("In loop"); </em>
<em>s = scnr.next();</em>
<em>}</em>
<em />
Required
What input causes another execution
Analyzing the while condition
<em>while ((!s.equals("q"))&& (!s.equals(""))) </em>
<em />
This can be split into:
<em>!s.equals("q")) && (!s.equals(""))</em>
<em />
Meaning
When s is not equal to "q" and when s is not an empty string
<em />
In other words,
the loop will be executed when user input is not "q" and user input is not empty.
So, from the list of given options: The loop both will be executed when:
a) Input is "Quit"
c) Input is Q only
<em>Input of q will terminate the loop, hence b and d are incorrect</em>
<em />
Answer:
128 bits
Explanation:
The MD5, which is the acronym for Message-Digest algorithm 5, invented by a professor of MIT, Ronald Rivest, is a cryptographic hash algorithm that creates a 128 bit hash value and is typically represented as a 32 character hex number. MD5 is the improved version of MD4 which was also created by the same professor.
Following is an example format of an MD5 hash;
<em>ef55d3a698d289f2afd663725127bccc</em>
MD5 has been proven to have security issues. One of these issues is called collision attack - a situation where the same hash is produced for different input data.
Answer:
The capacity of the disk is "40 GB".
Explanation:
Given value:
Cache memory is often used to speed up the runtime. It will enable us to improve performance unless we can store information, that is retrieved constantly in memory space.
- Hit Cache: when the Processor relates to representing database data, Cache Hit results.
- Miss Cache: when this Processor responds to a non-present cache data, this will trigger its miss of cache.
- It doesn't have to retrieve the Main Memory through secondary storage.
