Wireless Networking

Which of the following frequency bands can be used by IEEE 802.11 networks? (Select all that apply)

2.4 GHz | 5.0 GHz

Which of the following channel bandwidths is specified in the IEEE 802.11g standard?

20 MHz

Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in data throughput due to the use of multiple antennas and multiple data streams.

True

Which of the following is a short distance, line-of-sight technology used in products such as home remote controls?

IR

What are characteristic features of satellite Internet connections? (Select 3 answers)

High signal latency | Interference (weather dependent) | Relatively high cost in comparison to terrestrial links

A wireless network Access Point (AP) or site offering public wireless Internet access is commonly called a:

Hotspot

What are the characteristic features of a WPA/WPA2 Enterprise mode?

Suitable for large corporate networks | Requires RADIUS authentication server

Which wireless network type has a design that uses mesh topology?

WMN

Which of the following refer to IoT technologies designed to permit communication between appliances in a home automation network? (Select 2 answers)

Z-Wave | Zigbee

The IEEE 802.11n standard specifies available channel bandwidth options of:

20 MHz | 40 MHz

Which of the following describes the IEEE 802.11ac channel bandwidth option(s)?

20 MHz | 40 MHz | 80 MHz | 160 MHz

Which of the following is a channel bandwidth used in 802.11b networks?

22 MHz

The IEEE 802.11g standard is backwards compatible with:

802.11b

The IEEE 802.11n standard offers backward compatibility with: (Select all that apply)

802.11g | 802.11b | 802.11a

Which of the following best describes the disabling of an SSID broadcast?

It makes a WLAN harder to discover

What are the characteristic features of the IEEE 802.11b wireless standard? (Select 2 answers)

Maximum data signaling rate of 11 Mbps | 2.4 GHz frequency range

Which type of technology enables contactless payment transactions?

NFC

The term "Channel bonding" refers to a technique that allows for combining adjacent channels to increase the amount of available bandwidth.

True

Wi-Fi Protected Setup (WPS) simplifies the configuration of new wireless networks by enabling non-technical users to easily set up new networks, configure network security settings and add new devices to an existing network. However, due to its known security vulnerabilities, WPS is not recommended and should be disabled.

True

Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA) are encryption standards designed for securing wireless networks. WEP is an older standard and is not recommended because of its vulnerabilities. WPA was designed as an interim replacement for WEP, and WPA2 was introduced as the official standard that offers the strongest security of the three.

True

Which of the following is the best method to secure a small network lacking an authentication server?

WPA2-PSK

Which of the following WAN technologies uses cell towers that provide wireless signal coverage for mobile devices?

WWAN

What is the channel bandwidth specified in the IEEE 802.11a standard?

20 MHz

Which of the following IEEE standards provides the basis for implementing most modern WLANs?

IEEE 802.11

Which of the following answers apply to the IEEE 802.11g wireless standard? (Select 2 answers)

Maximum data signaling rate of 54 Mbps | 2.4 GHz frequency range

Which of the following answers apply to the IEEE 802.11a wireless standard?

Maximum data signaling rate of 54 Mbps | 5.0 GHz frequency band

Which of the following wireless security protocols has been discouraged in favor of newer standards due to known vulnerabilities resulting from implementation flaws?

WEP

Which of the following is a long-distance line-of-sight Internet service?

WiMAX

Which of the following channel options would allow three Wireless Access Points (WAPs) to be set up on non-overlapping channels?

1 | 6 | 11

Which of the following answers describe features of the IEEE 802.11ac wireless standard?

5.0 GHz frequency band | Maximum data signaling rate of up to 6.77 Gbps | Multi-User Multiple Input / Multiple Output (MU-MIMO)

A popular, short-range wireless technology used for connecting various personal devices in a WPAN is known as:

Bluetooth

Which of the following are characteristic features of the IEEE 802.11n wireless standard?

Multiple Input / Multiple Output (MIMO) | 2.4 GHz frequency band | 5.0 GHz frequency band | Maximum data signaling rate of up to 600 Mbps

Long Term Evolution (LTE) is a wireless communications standard for mobile devices and wireless hotspots. LTE is much faster than the older generation of 2G and 3G cellular networks. Both LTE and its later upgrade, LTE-Advanced (LTE-A), are often marketed as 4G standards.

True

Setting up a wireless network to operate on a non-overlapping channel allows multiple networks to coexist in the same area without causing interference.

True