Wireless Network Security

Question 1

Which of the following encryption algorithms is used in Wi-Fi Protected Access 2 (WPA2) encryption for securing the wireless network?

Answer 1

AES-CCMP
(WPA2 is an upgrade to WPA, and it includes mandatory support for counter mode with cipher block chaining message authentication code protocol (CCMP), an AES-based encryption mode with strong security.)

Question 2

Which of the following components of a wireless network is used to connect systems to a wireless network and access the Internet directly with the help of an ISP?

Answer 2

Wireless modem

Question 3

Identify the IEEE standard that defines Bluetooth, which is mainly used for exchanging data between fixed and mobile devices over short distances.

Answer 3

802.15.1

Question 4

Which of the following wireless technologies influences the spectral efficiency of 4G and 5G wireless communication services, reduces interference, and increases the channel robustness?

Answer 4

MIMO-OFDM
Multiple Input, Multiple output Orthogonal Frequency-division Multiplexing
An air interface for 4G and 5G broadband wireless communications.