Front

James needs to send a photo from his mobile to his brother's. Why use Bluetooth®?

Back

An ad hoc network can be established between the two devices.

Answer explanation

An ad hoc network can be established between the two devices, allowing for direct communication and file transfer via Bluetooth®, making it ideal for sending a photograph between mobile phones.

Front

Safe to remove while laptop is running?

Back

External hard drive

Answer explanation

The external hard drive can be safely removed while the laptop is running, as it is typically connected via USB and designed for hot-swapping. In contrast, the internal hard drive, RAM, and ROM are critical components that should not be removed while the system is active.

Front

Example of a port:

Back

SATA

Answer explanation

SATA (Serial ATA) is a type of interface used for connecting storage devices, making it a port. SAS (Serial Attached SCSI) and SCSI (Small Computer System Interface) are also interfaces, but SMS (Short Message Service) is not a port.

Front

Connection technology requiring line of sight?

Back

Laser

Answer explanation

Laser technology requires a direct line of sight between the transmitter and receiver to function effectively, as it relies on focused light beams. In contrast, Bluetooth, GSM, and WiFi can operate without a clear line of sight.

Front

Wireless communication technology?

Back

WiFi

Answer explanation

WiFi is a wireless communication technology that allows devices to connect to the internet without physical cables. In contrast, Ethernet, USB, and HDMI are wired technologies.

Front

Primary function of a router?

Back

Connect different networks.

Answer explanation

The primary function of a router is to connect different networks, allowing data to be transferred between them. This is essential for enabling communication across various devices and networks.

Front

Device to amplify network signal?

Back

Repeater

Answer explanation

A repeater is a device specifically designed to amplify and regenerate network signals, extending the range of the network. In contrast, a switch connects devices, a modem modulates signals for internet access, and a firewall protects networks.

Front

Characteristic of fiber optic cables?

Back

High data transmission speed

Answer explanation

Fiber optic cables are known for their high data transmission speed, allowing for faster communication compared to other types of cables. They are not susceptible to electromagnetic interference and have a high bandwidth capacity.

Front

Characteristic of SSDs vs HDDs:

Back

Faster data access speed

Answer explanation

SSDs (Solid State Drives) have faster data access speeds than HDDs (Hard Disk Drives) because they use flash memory with no moving parts, allowing for quicker read and write operations.

Front

Characteristic of RAM?

Back

Volatile