Explanation:
A.)
we have two machines M1 and M2
cpi stands for clocks per instruction.
to get cpi for machine 1:
= we multiply frequencies with their corresponding M1 cycles and add everything up
50/100 x 1 = 0.5
20/100 x 2 = 0.4
30/100 x 3 = 0.9
CPI for M1 = 0.5 + 0.4 + 0.9 = 1.8
We find CPI for machine 2
we use the same formula we used for 1 above
50/100 x 2 = 1
20/100 x 3 = 0.6
30/100 x 4 = 1.2
CPI for m2 = 1 + 0.6 + 1.2 = 2.8
B.)
CPU execution time for m1 and m2
this is calculated by using the formula;
I * CPI/clock cycle time
execution time for A:
= I * 1.8/60X10⁶
= I x 30 nsec
execution time b:
I x 2.8/80x10⁶
= I x 35 nsec
The buttons depend on what version of MS
Office he is using. Assuming Eric is using Powerpoint 2013, he must press the following:
1st Slide: Insert > New Slide >
Title Only
2nd Slide: Insert > New Slide > Comparison > Click on "Pictures" icon > Browse > Click selected picture > Insert > Delete text box saying "Click to add title" > Insert another picture using same procedures above > Add captions
3rd slide: Insert > New Slide > Two
Content > <span>Click on "Picture" icon > Browse > Click selected picture > Insert 3 more pictures > Click textbox "Click to add title" </span>
<h2>
Answer:</h2>
Authorization specifies what a user can do, and access control enforces what a user can do.
<h2>
Explanation:</h2>
Authorization is simply granting access to an authenticated user of an application. It specifies what a user can and/or cannot do. For example, for a user to access their banking details in an online banking service, they have to be authorized by first authenticating them to prove their identity. Another example is in an organizational system where some users (normally called admins) can access certain database info whereas some other users (normally called the regular users) cannot.
Access control is used to enforce the policies dictated by authorization. In other words, access control enforces the policy of what a user can and/or cannot do. Access control makes authorization possible. It is sometimes called privileges or permissions. For example, the <em>security tab </em>in the operating system of Windows, allow to set access privileges for certain files and/or folders. Another example is in an organizational system where some files on the organization's server are configured in such a way that access to it is restricted and dependent on some further authorization.
Answer:
C. how and where the data are physically arranged and stored.
Explanation:
The physical view as the name implies describes how and where the data are physically arranged in the database. This deals with the physical arrangement of data in the database. This user usually view the database in a logical way. e.g table. The physical arrangement is usually used by database specialists. There can be multiple logical view of a database but just a single view of the physical view.
In a bus network, a single communication path connects the network server,departamental servers, workstations, and peripheral devices.
c. bus network
