Wireless Networking (Network+)

Characteristics features of the IEEE 802.11n wireless standard?

2.4 / 5.0 GHz 600 Mbps CSMA/CA MIMO

Characteristics features of the IEEE 802.11b wireless standard?

2.4 GHz 11 Mbps CSMA/CA

Characteristics features of the IEEE 802.11g wireless standard?

2.4 GHz 54 Mbps CSMA/CA

The IEEE 802.1a standard specifies a channel bandwidth of

20 MHz

The IEEE 802.1n standard specifies a channel bandwidth of

20 MHz 40 MHz

The IEEE 802.1b standard specifies a channel bandwidth of

22 MHz

Which IEEE standard provides the implementation basis for most modern WLANs?

802.11

The IEEE 802.11g standard is backwards compatible with

802.11b

The IEEE 802.11n standard offers backward compatibility with

802.11g 802.11b 802.11a

A type of technology that provides control over the usage of mobile device within a designated area is

Geofencing

Channel bonding was introduced with

IEEE 802.1n

A short-distance, line-of-sight technology used for example in home remote controls?

IR (Infra-Red)

A common antenna used as a standard equipment on most Access Points (APs) for indoor Wireless Local Area Network (WLAN)

Omnidirectional antenna

Which acronym refers to a client authentication method used in WPA/WPA2 Personal modes?

PSK (Pre-Shared Key)

Which WAP configuration setting allows for adjusting the boundary range of a wireless signal?

Power level controls

A wireless networking topology consisting of at least one Access Point (AP) is called

Infrastructure mode

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

Bluetooth

What is the name of an AES-based encryption mode implemented in WPA2?

CCMP

A channel access method used in 3G cellular networks?

CDMA (Code Division Multiple Access)

A solution that allows to control access to a shared transmission medium in 802.11 networks is known as

CSMA/CA (Carrier Sense Multiple Access / Collision avoidance)

A wireless disassociation attack is a type of

Denial of Service (Dos) attack

Which of the antenna types provide a 360-degree horizontal signal coverage?

Dipole antenna Omnidirectional antenna

Which of the following EAP methods offers the highest level of security?

EAP-TLS (Extensible Authentication Protocol - Transport Layer Security)

Which EAP method relies on client-side and server-side certificates for authentication

EAT-TLS

What is an encryption method algorithm used in TKIP?

RC4

Wireless technology that enables identification and tracking of tags attached to objects

RFID (Radio-frequency identification)

A metric that compares the amount of usable data and the background noise that is being sent over a transmission channel is known as

SNR (Signal-to-Noise-Ration)

A unique WLAN identifier is commonly referred to as

SSID

A channel access method used in 2G GSM networks

TDMA (Time-Division Multiple Access)

A security protocol designed to strengthen existing WEP implementations without requiring the replacement of legacy hardware is called

TKIP (Temporal Key Integrity Protocol)

What tool would be of help in troubleshooting wireless signal loss and low wireless network signal coverage

WAP power level controls

Best solution for securing a small network lacking an authentication server?

WAP2-PSK (Wi-Fi Protected Access - Pre-Shared Key)

A type of network consisting of computers and peripheral devices that use high-frequency radio waves to communicate with each other is known as

WLAN

An optimal Wireless Access Point (WAP) antenna placement provides a countermeasure against

War driving

The process of planning and designing new WLANs for optimal performance, security and compliance typically involves

Wireless site survey

Highly directional antennas used for long-range point-to-point bridging links

Yagi antenna Dish antenna Parabolic antenna

Which choices allow for setting up three Wireless Access Points (WAPs) on non-overlapping channels

1, 6, 11

The IEEE 802.1ac standard specifies a channel bandwidth of

160 MHz

The IEEE 802.1g standard specifies a channel bandwidth of

40 MHz

Characteristics features of the IEEE 802.11ac wireless standard?

5 GHz 6.77 Gbps MU-MIMO

Characteristic features of the IEEE 802.11a wireless standard?

5.0 GHz 54 Mbps CSMA/CA

A wireless connectivity technology used for monitoring sensor data collected low-powered sports and fitness equipment

ANT+

A wireless networking topology in which client devices communicate directly with each other without the use of a controlling Access Point (AP) is called

Ad hoc mode

Which type of technology enables contactless payment transactions?

NFC (Near Field Communication)

Which network device enables centralized management of WAPs?

Wireless LAN controller

A wireless protocol designed to provide communication between appliances in a home automation network?

Z-wave