Page 285 - Computer - 10(A&B)

v. What should you do with the problem of dry eyes?
a. Forget to blink

b. Rest eyes periodically and do simple eye exercises

c. Do exercise
d. Blink the eyes

vi. Which of the following data models sets a relation between the two or more tables?
a. Relational Data Model b. Network Data Model

c. Hierarchical Data Model d. Connection Data Model
Ans: i. (b) ii. (a) iii. (b) iv. (c) v. (b) vi. (a)

Q. 5 Answer any 5 out of the given 6 questions (1 × 5 = 5 marks)
i. Which of the following statements are true about primary key in a database?

a. It is a field that can have duplicate values.

b. It uniquely identifies each record in a table.
c. It can have null values

d. It is an optional field in a database table.
ii. Which of the following dialog boxes appears when the Query Design window is opened for the first
time to design a query?

a. Add Table b. Add Query
c. Add Query or Report d. Add Table or Query

iii. What feature in OpenOffice Base allows users to present retrieved data in a user-friendly and
formatted manner?

a. Query b. Form
c. Report d. Data view

iv. Which of the following is a recommended way to manage stress at work?

a. Engage in aggressive conflicts with colleagues
b. Work longer hours without breaks

c. Seek conflict resolution strategies with colleagues
d. Avoid hobbies that promote relaxation

v. Which of the following can lead to musculoskeletal problems while working on a computer?
a. Using anti glare screen

b. Sitting in a wrong posture and using an uncomfortable chair

c. Using Air Conditioners
d. Taking frequent breaks

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