Quiz 1- Lesson 4 | Quizalize

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Quiz 1- Lesson 4 | Quizalize

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Quiz 1- Lesson 4

Quiz by Grace Vergara

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Q 1/6
Score 0
Directions: A. Choose TRUE if the statement is correct and FALSE if it is incorrect.
30
TRUE OR FALSE
TRUE OR FALSE
Q 2/6
Score 0
A search engine is a helpful tool for finding a website without knowing the URL.
30
FALSE
TRUE

6 questions

Q.

Directions: A. Choose TRUE if the statement is correct and FALSE if it is incorrect.

1

30 sec

Q.

A search engine is a helpful tool for finding a website without knowing the URL.

2

30 sec

Q.

Boolean operators use quotation marks to a keyword so that the search engine will only show documents containing the exact key Word.

3

30 sec

Q.

Ctrl+A is the shortcut used to bookmark a page by major web browsers.

4

30 sec

Q.

Advance web searching techniques limit the scope when searching a topic on the internet.

5

30 sec

Q.

You do not need to look at the domain of the websiteto check its credibility.

6

30 sec

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Here’s a **quiz on Lesson 1: Introduction to Analog Communication (Unit 8)** based on your file 👇 --- # 🧠 **Quiz – Lesson 1 (Analog Communication)** **Marks:** 20 --- ## ✍️ **Part 1: Choose the correct answer (8 marks)** 1. A signal is: a) A device b) A physical quantity that carries information c) A type of wire d) A computer 2. A continuous signal is defined over: a) Discrete values b) Infinite real values c) Only integers d) Binary values 3. Digital signals have: a) Infinite values b) Two values (0 and 1) c) Random values d) Analog values 4. Sampling is used to: a) Increase noise b) Convert analog to digital c) Amplify signals d) Reduce bandwidth 5. A deterministic signal: a) Cannot be predicted b) Has known values c) Is always random d) Has no pattern 6. Even signal satisfies: a) x(t) = -x(-t) b) x(t) = x(-t) c) x(t) = 0 d) x(t) ≠ x(-t) 7. Periodic signal repeats after: a) Time T b) Infinite time c) No time d) Random time 8. A system is: a) A signal only b) Input only c) Takes input and gives output d) A wire --- ## ✍️ **Part 2: Complete (6 marks)** 1. A signal can be represented as __________. 2. Continuous signals are defined over __________ values. 3. Digital signals take values like __________ and __________. 4. A random signal cannot be __________ easily. 5. Odd signal satisfies __________. 6. A periodic signal repeats every __________. --- ## ✍️ **Part 3: True or False (6 marks)** 1. Analog signals are continuous. ( ) 2. Digital signals can take infinite values. ( ) 3. Sampling converts analog to digital signal. ( ) 4. Deterministic signals are predictable. ( ) 5. Odd signals pass through origin. ( ) 6. Aperiodic signals repeat over time. ( ) --- ## 🎯 **Bonus Question (Optional)** Give one example of: * Analog signal * Digital signal -