Grade 6 -Review On-Unit 3

What is the main purpose of storing data on a server?

• The main purpose of storing data on a server is to enable centralized access, management, and security of data.

• To increase the speed of personal computers.

• To allow users to access data offline.

• To store data only for backup purposes.

How do streaming services deliver content to users?

• Users must download all content before watching it.

• Streaming services deliver content over the internet using protocols to enable real-time playback.

• Content is delivered through physical media shipped to users.

• Streaming services use satellite signals to broadcast content.

What is the difference between messaging services and email?

• Messaging services are only for group chats.

• Email is always faster than messaging services.

• Messaging services require a subscription fee.

• Messaging services provide instant communication, whereas email is used for asynchronous communication.

What technology do cellular networks use to transmit data?

• Radio waves and various cellular technologies (GSM, CDMA, LTE, 5G)

• Wired connections and DSL

• Fiber optics and satellite technology

• Infrared signals and Bluetooth

Why is data transfer important in a network?

• Data transfer is important in a network because it enables communication and resource sharing between devices.

• Data transfer is irrelevant in a wired network.

• Data transfer is only necessary for large files.

• Data transfer slows down network performance.

What are some examples of streaming services?

• Vimeo

• YouTube

• Netflix, Hulu, Amazon Prime Video, Spotify, Disney+

• Twitch

How does data storage on a server benefit users?

• Data storage on a server limits user access to files.

• Data storage on a server reduces data security risks.

• Data storage on a server benefits users by providing remote access, security, collaboration, and scalability.

• Data storage on a server increases physical space requirements.

What role do cellular networks play in mobile communication?

• Cellular networks provide internet access without any data management.

• Cellular networks are primarily for landline communication.

• Cellular networks enable mobile communication by connecting devices through a system of base stations and managing data transmission.

• Cellular networks are only used for emergency calls.

What are the advantages of using messaging services?

• Requires a stable internet connection

• Advantages of using messaging services include instant communication, multimedia sharing, group chats, accessibility on multiple devices, cost-effectiveness, and enhanced security features.

• Limited to text only

• Only available on smartphones

How can data be securely transferred over a network?

• Send data via unsecured email

• Transfer data without authentication

• Use encryption protocols (SSL/TLS), secure file transfer protocols (SFTP, SCP), and VPNs.

• Use plain text for transfer