Wireless Networking

Which 802.11 standard functions in both the 2.4 GHz and 5 GHz bands?

802.11ax

Which standard adapted EAP to WLANs?

802.1X

What size bonded channels do 802.11ac and 802.11ax support?

20, 40, 80, and 160 MHz

What was the first 802.11 standard to implement channel bonding?

802.11n

Which of the following statements is true?

A Wi-Fi client connects to a range extender that connects to an AP.

Which protocol replaced TKIP for WPA2?

CCMP

Which Carrier Sense technology is used on wireless networks to reduce collisions?

CSMA/CA

Which 802.1X authentication protocol is often used by WLANs?

EAPoL

Why do wireless networks generally experience a greater reduction in throughput compared with wired networks?

EMI

Which type of identifier allows wireless clients to roam freely from AP to AP?

ESSID

Which of the following statements is false?

Each Wi-Fi channel contains multiple frequency bands.

You just settled in for some study time at the local coffee shop, and you pause long enough to connect to your smartphone to the Wi-Fi so you can listen to some music while you study. As you're about to sign in, you realize that you clicked on an SSID called "Free Coffee and Internet." What kind of security trap did you almost fall for?

Evil twin

Which one of the following wireless transmission types requires a clear LOS to function?

IR

Which problem would a low RSSI level indicate?

Insufficient wireless coverage

What is the lowest layer of the OSI model at which wired and wireless transmissions share the same protocols?

Layer 3

What is the primary difference between how WPA2-Personal and WPA2-Enterprise are implemented on a network?

RADIUS

As you're troubleshooting a dead zone in your office, which measurement will help you determine the edges of the dead zone?

RSSI

Which off-boarding policy can protect proprietary corporate information if a smartphone is lost?

Remote wipe

Which device will let you determine all frequencies within a scanned range that are present in a specific environment, not just Wi-Fi?

Spectrum analyzer

Which Wi-Fi encryption standard was designed to use AES encryption?

WPA2

Which device on the network will require the greatest throughput capacity?

Wireless bridge

To exchange information, two antennas must be tuned to the same ____________________.

frequency

What feature of a site survey maps the Wi-Fi signals in your location?

heat map

When a wireless signal encounters a large obstacle with wide, smooth surfaces, what happens to the signal?

reflection

Which function of WPA/WPA2 security ensures data cannot be read in transit?

Encryption

You've just completed a survey of the wireless signals traversing airspace in your company's vicinity, and you've found an unauthorized AP with a very strong signal near the middle of the 100-acre campus. Its SSID is broadcasting the name of a smartphone model. What kind of threat do you need to report to your boss?

Rogue AP

What address does an 802.11 frame contain that an 802.3 frame does not?

Sequence Control

You're setting up a home network for your neighbor, who is a music teacher. She has students visiting her home regularly for lessons and wants to provide Internet access for their parents while they're waiting on the children. However, she's concerned about keeping her own data private. What wireless feature can you configure on her AP to meet her requests?

guest networking

Signals traveling through areas in which many wireless communications systems are in use will exhibit a lower ____________________ due to the higher proportion of noise.

throughput

Which of the following wireless technologies does not use the 2.4 GHz band?

Z-Wave