AS Computer Science/ Cyfrifadureg Progress Check 2

AS Computer Science/ Cyfrifadureg Progress Check 2

University

32 Qs

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AS Computer Science/ Cyfrifadureg Progress Check 2

AS Computer Science/ Cyfrifadureg Progress Check 2

Assessment

Passage

Computers

University

Practice Problem

Medium

Created by

Richard Roberts

Used 5+ times

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32 questions

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1.

DRAW QUESTION

3 mins • 4 pts

A university consists of a number of departments. Each department offers several courses. A number of modules make up each course. Students enrol on a particular course and take modules for that course.

Draw an entity relationship diagram to represent this situation.

Media Image

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

1.     Give the simplest Boolean Expression for the truth table.

C = B AND NOT A

C = A NOT AND B

C = A AND NOT B

A = C NOT NOT B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

1.     Give the simplest Boolean Expression for the truth table.

a.       P = NOT ( R OR Q ) or R = NOT P AND NOT S

a.       R = AND ( P OR Q ) or R = NOT P NOT NOT Q

R = NOT ( P OR Q ) or R = NOT P AND NOT Q

R = NOTT ( Q OR Q ) or R = NOT P AND NOT Q

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Give the simplest Boolean Expression for the truth table.

X = AND (X XOR Y)

Z = NOT (X AND Y)

Y = NOT (X XOR Z)

Z = NOT (X XOR Y)

5.

MATH RESPONSE QUESTION

2 mins • 1 pt

 

1.     Different primitive data types are used in computer systems.

a.     Using the denary example 10810 calculate the minimum storage requirements for an integer data type within a range of 010 to 12710.

Mathematical Equivalence

ON

6.

MATH RESPONSE QUESTION

2 mins • 1 pt

a.    Convert 3116 and 6D16 into binary numbers and add them together using binary addition.

Mathematical Equivalence

OFF

7.

MATH RESPONSE QUESTION

2 mins • 1 pt

a.    In a certain computer system, real numbers are stored in floating point form using two’s complementation, a 12-bit mantissa and a 4 bit exponent. Convert the number 16.12510 into this floating-point form.

Mathematical Equivalence

ON

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