Test Inițial Informatică clasa a IX- a

Choose from the following concepts the category that represents arithmetic operators in pseudocode:

• and, or, not

• mod, div, +, -

• <, >, <>, >=

• ←, =, <=

To calculate the quotient of the integer division of x by y, the operator will be used:

• not

• div

• mod

• or

To find out if the number n is even, we will use one of the options:

• n/2=0

• n div 2 = 0

• n mod 2 =0

• [n/2]=0

The result of evaluating the expression N%10 for N=135 is:

• 135

• 13.5

• 5

• 1.35

The result of evaluating the expression NOT(x<-1 AND x<=1) for a variable value x=0.3 is:

• true

• false

• both options

• none of the options

Determine the correct statement:

• The alternative structure is used when instructions are executed one after another in the order they appear.

• The alternative structure chooses one option from two possible ones based on the result of evaluating a logical condition.

• In the alternative structure, both options are executed after evaluating the logical condition.

What value will the variable u hold after executing the following assignment sequence?

• 10

• -3

• 7

• 3

What are the values of the integer variables u and v after executing the adjacent sequence, if initially they had different values?

• u=1 and v=1

• u=1 and v=0

• u=0 and v=0

• u=0 and v=1

What does the result displayed by the following pseudocode program represent?

• the sum of odd natural numbers less than or equal to n.

• the sum of the first n natural numbers.

• the sum of odd natural numbers less than n.

• the sum of even natural numbers less than n.

What is the value displayed by the following pseudocode algorithm?

• 0

• 3

• 6

• 5