Wireless Concepts and Standards

Grace, Benjamin, and Mia are setting up a wireless network at their home. What type of media do radio waves in their wireless network represent?

• Bounded media

• Shielded media

• Unbounded media

• Encased media

Noah and William are setting up a wireless router for their home. They need to choose between two types of frequency bands for better performance. What are these two frequency bands?

• 2.4 GHz and 5 GHz

• 2.4 GHz and 10 GHz

• 5 GHz and 10 GHz

• 5 GHz and 20 GHz

Aria, Hannah, and Nora are setting up a wireless network in their apartment. They want to ensure the signal can travel through walls and floors. Which frequency range should they use?

• 2.4 GHz range

• 5 GHz range

• 10 GHz range

• 20 GHz range

Elijah, Evelyn, and Aria are working on a project for their wireless communications class. They need to design a system that transfers data over a radio signal by switching channels at random within a larger frequency band. Which signaling method should they use?

• Frequency hopping spread spectrum (FHSS)

• Direct sequence spread spectrum (DSSS)

• Orthogonal frequency division multiplexing (OFDM)

• Carrier sense multiple access/collision avoidance (CSMA/CA)

Arjun is studying communication systems and comes across DSSS. What does DSSS do to the transmitted bandwidth signal?

• Makes it narrower

• Makes it wider

• Makes it faster

• Makes it slower

Isla, Daniel, and Arjun want to create a temporary wireless network to share files between their laptops without using an access point. Which wireless topology should they use?

• Ad hoc / Independent Basic Service Set (IBSS)

• Wireless mesh network (WMN)

• Infrastructure

• Wireless bridge

Harper, Mason, and Aiden are setting up a wireless network for their school project. Which wireless topology should they use if they want to ensure that devices do not need to be in radio range of one another?

• Ad hoc / Independent Basic Service Set (IBSS)

• Wireless mesh network (WMN)

• Infrastructure

• Wireless bridge

Emma, Anika, and Sophia are setting up a wireless network at their school. What is the function of an access point (AP) in their wireless network?

• To manage network communication

• To connect two APs into a single network

• To connect a wireless AP to a wired network

• To send and receive radio signals

James, Abigail, and Hannah are setting up a wireless network for their school project. Which method should they use to control access and avoid collisions on their network?

• Carrier sense multiple access/collision avoidance (CSMA/CA)

• Frequency hopping spread spectrum (FHSS)

• Direct sequence spread spectrum (DSSS)

• Orthogonal frequency division multiplexing (OFDM)

Sophia, Charlotte, and Abigail are setting up a walkie-talkie system for their science project. What type of communication does their wireless walkie-talkie system operate in?

• Full duplex

• Half duplex

• Simplex

• Multiplex