Answer:
See the attached file for the answers
Explanation:
Find attached for the explanation
Answer:
See explaination
Explanation:
An Academic Database deals with the information pertaining to the records of students of an institute. The various fields which can be associated with a student are Name, Unique Identification Number, Marks in various subjects, Grades, Courses Taken and so on. Most of the fields mentioned above have some or other form of validation that is required for the DB to be consistent and follow the basic properties of a database.
One field where range validation can be used is MARKS. In the marks field, the range of marks will be say 0 to 100 and anything below 0 or above 100 must be reported to the database administrator. Another field where we can apply a range validation is AGE in which the range of age allowed could greater than say 10, if it is a college and maximum age could be say 60. Thus, the range check on the AGE field is 10 to 60.
One field where choice validation can be used is GENDER. In the gender field, there could be multiple choices like Male, Female and Others. Thus, out of the available choices we have to select only the available choice and only one choice must be selected where we can apply choice validation. Another field is COURSE, where we can have a list of courses a student can opt for and out of the available courses can select one.
Thus, there are multiple fields where we can apply various types of validation and it is important to explore the area for which the DB has been created understanding all the scenarios and attributes of the problems that are associated with that area.
Answer:
Following are the description of the given nodes:
Explanation:
The Multiple Access frequency - division facilitates control by granting every node a fixed time slot. Also, every slot seems to be identical in width. Its whole channel bandwidth is often used in every channel node. Compared to FDMA it takes more time.
Time slot=3 frames for all the above scenario
- In the first point, It is reserved the node 1, and as well as 3 frames were also transmitted 1.
- In the second point, It is reserved the node 2, and as well as 3 frames are transmitted.
- In the third point, It is reserved 3 nodes, and as well as 3 frames were transmitted.
- In the fourth point, It is reserved 4 slots and the transmit 3 frames.
- In the fifth point, It stores the slot 1 and the transmit 3 frames.
- In the sixth point, It stores the slot 2 and the transmit 1 frame.
- In the seventh point, It stores the slot 3 and the transmit 3 frames.
- In the Eight points, It stores the slot 3 and the transmit 2 frames.
Time interval = number of frames in first slot Time to send 1 frame number of images
D iTunes hope this helps!