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CompTIA A+ 2019 > Core 1: Wireless Networking > Flashcards

Core 1: Wireless Networking Flashcards

1
Q

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

  • EAP
  • AES
  • WPA2
  • WEP
A

WEP

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2
Q

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

  • It is one of the measures used in the process of securing wireless networks
  • It makes a WLAN harder to discover
  • It blocks access to a WAP
  • It prevents wireless clients from accessing the network
A

It makes a WLAN harder to discover

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3
Q

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 or False?

A

True

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4
Q

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

  • WPA-PSK
  • WPA2-Enterprise
  • WPA2-PSK
  • WPA-Enterprise
A

WPA2-PSK

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5
Q

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 or False?

A

True

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6
Q

What are the characteristic features of a WPA/WPA2 Enterprise mode? (Select 2 answers)

  • Suitable for large corporate networks
  • Does not require an authentication server
  • Suitable for all types of wireless LANs
  • Requires RADIUS authentication server
A
  • Suitable for large corporate networks

- Requires RADIUS authentication server

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7
Q

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 or False?

A

True

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8
Q

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

  • IEEE 802.11
  • IEEE 802.1x
  • IEEE 802.3
  • IEEE 802.1q
A

IEEE 802.11

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9
Q

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

  • 2.4 GHz frequency band
  • Maximum data signaling rate of 54 Mbps
  • 5.0 GHz frequency band
  • Maximum data signaling rate of up to 600 Mbps
  • 5.4 GHz frequency band
  • Maximum data signaling rate of 11 Mbps
A

5.0 GHz frequency band

Maximum data signaling rate of 54 Mbps

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10
Q

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

  • Maximum data signaling rate of 11 Mbps
  • 2.0 GHz frequency range
  • Maximum data signaling rate of 54 Mbps
  • 5.0 GHz frequency range
  • Maximum data signaling rate of up to 600 Mbps
  • 2.4 GHz frequency range
A

Maximum data signaling rate of 11 Mbps

2.4 GHz frequency range

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11
Q

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

  • Maximum data signaling rate of up to 600 Mbps
  • 5.4 GHz frequency band
  • Maximum data signaling rate of 54 Mbps
  • 2.4 GHz frequency range
  • Maximum data signaling rate of 11 Mbps
  • 5.0 GHz frequency range
A

Maximum data signaling rate of 54 Mbps

2.4 GHz frequency range

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12
Q

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 or False?

A

True

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13
Q

Which of the following are characteristic features of the IEEE 802.11n wireless standard? (Select all that apply)

  • Multiple Input / Multiple Output (MIMO)
  • Maximum data signaling rate of 54 Mbps
  • 2.4 GHz frequency band
  • Multi-User Multiple Input / Multiple Output (MU-MIMO)
  • 5.0 GHz frequency band
  • Maximum data signaling rate of up to 600 Mbps
A
  • Multiple Input / Multiple Output (MIMO)
  • 2.4 GHz frequency band
  • 5.0 GHz frequency band
  • Maximum data signaling rate of up to 600 Mbps
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14
Q

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

  • 802.11g
  • 802.11ac
  • 802.11b
  • 802.11a
A
  • 802.11b

- 802.11a

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15
Q

Which of the following answers describe features of the IEEE 802.11ac wireless standard? (Select 3 answers)

  • Multiple Input / Multiple Output (MIMO)
  • Data signaling rate of up to 600 Mbps
  • 5.0 GHz frequency band
  • Maximum data signaling rate of up to 6.77 Gbps
  • Multi-User Multiple Input / Multiple Output (MU-MIMO)
  • 2.4 GHz frequency band
A
  • 5.0 GHz frequency band
  • Maximum data signaling rate of up to 6.77 Gbps
  • Multi-User Multiple Input / Multiple Output (MU-MIMO)
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16
Q

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

  • 2.0 GHz
  • 2.4 GHz
  • 5.0 GHz
  • 5.4 GHz
A
  • 2.4 GHz

- 5.0 GHz

17
Q

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

  • 20 MHz
  • 22 MHz
  • 40 MHz
  • 80 MHz
A

20 MHz

18
Q

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

  • 20 MHz
  • 22 MHz
  • 40 MHz
  • 80 MHz
A

22 MHz

19
Q

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

  • 20 MHz
  • 22 MHz
  • 40 MHz
  • 80 MHz
A

20 MHz

20
Q

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

True or False?

A

True

21
Q

The IEEE 802.11n standard specifies available channel bandwidth options of: (Select 2 answers)

  • 20 MHz
  • 22 MHz
  • 40 MHz
  • 80 MHz
  • 160 MHz
A
  • 20 MHz

- 40 MHz

22
Q

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

  • 20 MHz
  • 40 MHz
  • 80 MHz
  • 160 MHz
  • Any of the above
A

Any of the above

23
Q

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

  • 1
  • 5
  • 6
  • 9
  • 11
A

1
6
11

24
Q

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

  • 802.11
  • NFC
  • Bluetooth
  • Z-Wave
A

Bluetooth

25
Q

Which type of technology enables contactless payment transactions?

  • NFC
  • SDN
  • PED
  • WAP
A

NFC

26
Q

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

  • NFC
  • 802.3
  • IR
  • Z-Wave
A

IR

27
Q

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

  • Hotspot
  • Proxy
  • Hub
  • Gateway
A

Hotspot

28
Q

Which of the following refers to the capability of a mobile device to share its Internet connection with other devices?

  • Pairing
  • Clustering
  • Tethering
  • Bonding
A

Tethering

29
Q

The term “Airplane mode” refers to a device function that allows a user to disable wireless transmission capability.

True or False?

A

True

30
Q

Which of the following are ways of creating a wireless/cellular data network by using a mobile device? (Select 3 answers)

  • Hotspot
  • Channel bonding
  • Tethering
  • Link aggregation
  • Bluetooth
A
  • Hotspot
  • Tethering
  • Bluetooth
31
Q

The process of establishing a connection between Bluetooth devices (e.g. between a Bluetooth enabled headset and a Bluetooth-enabled phone) is known as:

  • Linking
  • Tethering
  • Three-way handshake
  • Pairing
A

Pairing

32
Q

Which of the following is a security feature used in Bluetooth device pairing?

  • PIN code
  • Multifactor authentication
  • Biometrics
  • Cleartext credentials
A

PIN code

33
Q

Which of the following wireless technologies enables identification and tracking of tags attached to objects?

  • WMN
  • RFID
  • GPS
  • WTLS
A

RFID

34
Q

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

  • Ant+
  • RFID
  • Z-Wave
  • NFC
  • Zigbee
A

Z-Wave

Zigbee

35
Q

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 or False?

A

True

36
Q

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

  • MAN
  • WMN
  • VLAN
  • WAN
A

WMN

37
Q

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

  • WAP
  • WWAN
  • Satellite
  • WLAN
A

WWAN

38
Q

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

  • WiMAX
  • IEEE 802.11
  • IR
  • Bluetooth
A

WiMAX

39
Q

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

  • High signal latency
  • Lack of signal interference
  • Cheaper in comparison to terrestrial links
  • Interference (weather dependent)
  • Low signal latency
  • Relatively high cost in comparison to terrestrial links
A

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

CompTIA A+ 2019 (40 decks)

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