How does a computer network enhance collaboration and functionality?

• By restricting data exchange between devices.

• By isolating hardware components within devices.

• By providing a user-friendly interface for individual devices.

• By allowing devices to exchange data and services.

What is true about the ASCII (American Standard Code for Information Interchange) character set?

• ASCII uses a 6-bit version that allows for 64 possible combinations.

• The 7-bit version of ASCII allows for 128 possible combinations of characters.

• The 8-bit version of ASCII uses the eighth bit to always represent a binary 1.

• ASCII is not widely used outside of the United States.

In what context does a computer network play a crucial role?

• Isolating devices from communication.

• Enhancing hardware management.

• Facilitating collaboration and functionality.

• Limiting resource sharing among connected devices.

In the context of networking, why is the OSI model considered a fundamental framework?

• To determine the speed of data transfer.

• To establish specific roles for networking devices.

• To enable seamless communication and data transfer between devices and systems.

• All options are correct.

What is the primary purpose of a computer network?

• To provide wireless communication standards.

• To facilitate efficient resource sharing and communication among connected devices.

• To manage hardware components in isolation.

• To execute specific tasks like word processing.

What is the client-server model in computing?

• An independent computation model.

• An architectural framework for networked systems.

• A wireless communication standard.

• A data encryption method.

How many layers does the OSI model consist of, and what is their primary purpose?

• Three layers, focused on hardware compatibility.

• Five layers, each responsible for a specific networking protocol.

• Seven layers, with each having a distinct role and purpose.

• Nine layers, emphasizing data encryption.

Which of the following statements is true about analog signals and their behavior?

• Analog signals are represented by square waves and are defined by their voltage and current.

• Attenuation refers to the increase in signal strength as it travels through a medium.

• Analog signals are represented by sine waves and are defined by their amplitude, frequency, and phase.

• A value decrease of 1 in attenuation represents a twofold decrease in signal strength.

Which of the following statements correctly distinguishes data from signals?

• Data exists only in digital form, while signals are always analog.

• Data conveys meaning, while signals are used to encode and transmit data.

• Analog data is composed of a fixed number of values, while digital data is continuous.

• Signals and data are identical and can only exist in analog form.

What is a characteristic of twisted pair cables that makes them suitable for certain applications?

• High bandwidth.

• Cost-effectiveness.

• Mobility and flexibility.

• Reliability and security.