1.
This is the family of specifications for wireless local area networks (WLANs) developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE).
Correct Answer
B. 802.11
Explanation
The correct answer is 802.11. This family of specifications refers to the set of standards for wireless local area networks (WLANs) developed by the IEEE. These standards define the protocols for wireless communication, including the use of different frequencies and data transfer rates. The 802.11 standards are commonly used for Wi-Fi networks, allowing devices to connect and communicate wirelessly within a specific range.
2.
Which of the following refers to a standard or group of standards that are still being developed as a part of overall IEEE 802.11 WLAN support?
Correct Answer
C. Both of the above
Explanation
Both 802.11x and 802.11i refer to standards that are still being developed as part of the overall IEEE 802.11 WLAN support. The "x" in 802.11x represents a placeholder for various extensions and amendments to the original 802.11 standard, which are continuously being developed. On the other hand, 802.11i specifically focuses on security enhancements for wireless networks. Therefore, both options refer to ongoing developments within the IEEE 802.11 WLAN support.
3.
Which of the following refers to a communications specification that was approved in early 2002 by the Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA) for wireless personal area networks (WPANs)?
Correct Answer
B. 802.15
Explanation
802.15 refers to a communications specification that was approved in early 2002 by the Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA) for wireless personal area networks (WPANs).
4.
Which of the following is a language that allows the text portions of Web pages to be presented on cellular telephones and personal digital assistants (PDAs) via wireless access?
Correct Answer
C. Both of the above
Explanation
Both HDML and Wireless Markup Language (WML) are languages that allow the text portions of web pages to be presented on cellular telephones and PDAs via wireless access. HDML, or Handheld Device Markup Language, was developed by Openwave Systems in the 1990s specifically for mobile devices. WML, on the other hand, is an XML-based language developed by the World Wide Web Consortium (W3C) for mobile devices. Both languages are used to create web content that can be accessed on mobile devices with wireless connectivity.
5.
Developed by International Telecommunication Union (ITU), ______ is code-division multiple access (CDMA) version of the IMT-2000 standard.
Correct Answer
D. CDMA2000
Explanation
CDMA2000 is the correct answer because it is the code-division multiple access (CDMA) version of the IMT-2000 standard. Developed by the International Telecommunication Union (ITU), CDMA2000 is a set of 3G mobile communication standards that provide higher data rates and capacity compared to the earlier CDMA systems. It offers improved voice quality, increased network capacity, and support for advanced data services, making it a widely used technology in mobile telecommunications.
6.
This is an industry specification that describes how mobile phones, computers, and PDAs can easily interconnect with each other using a short-range wireless connection.
Correct Answer
A. Bluetooth
Explanation
Bluetooth is the correct answer because it is an industry specification that allows for easy interconnection between mobile phones, computers, and PDAs using a short-range wireless connection. Bluetooth technology enables devices to communicate and share data wirelessly, making it a convenient and widely used method for connecting devices in various settings.
7.
Which of the following is a faster version of GSM wireless service, designed to deliver data at rates up to 384 Kbps and enable the delivery of multimedia and other broadband applications to mobile phone and computer users?
Correct Answer
C. EDGE
Explanation
EDGE is the correct answer because it is a faster version of GSM wireless service that can deliver data at rates up to 384 Kbps. It is specifically designed to enable the delivery of multimedia and other broadband applications to mobile phone and computer users. ESMR, BREW, and ETRN are not related to GSM wireless service or the delivery of data at high speeds.
8.
_________ is a security protocol designed to provide a wireless LAN with a level of security and privacy comparable to what is usually expected of a wired LAN.
Correct Answer
A. WEP
Explanation
WEP (Wired Equivalent Privacy) is a security protocol that aims to provide a wireless LAN with a level of security and privacy that is similar to what is typically expected from a wired LAN. It was designed to encrypt data transmitted over the wireless network, making it more difficult for unauthorized users to intercept and access sensitive information. However, WEP has been widely criticized for its vulnerabilities and is no longer considered secure.
9.
This is a specification for a set of communication protocols to standardize the way that wireless devices can be used for Internet access.
Correct Answer
A. WAP
Explanation
WAP stands for Wireless Application Protocol. It is a specification for a set of communication protocols that standardize the way wireless devices can be used for Internet access. WAP enables mobile devices to access and interact with internet services, such as browsing websites and sending/receiving emails, using wireless networks. It provides a framework for the development of mobile applications and ensures compatibility between different devices and networks. WAP has been widely used in the past for mobile internet access, although it has been largely replaced by more advanced technologies like 3G, 4G, and now 5G.
10.
This is the handling of voice, fax, and regular text messages as objects in a single mailbox that a user can access either with a regular e-mail client or by telephone.
Correct Answer
D. Unified messaging
Explanation
Unified messaging refers to the integration of different types of messages, such as voice, fax, and text messages, into a single mailbox. This allows users to access their messages through a regular email client or by telephone. With unified messaging, users can conveniently manage and retrieve all their messages from one platform, regardless of the format. This streamlines communication and enhances productivity by providing a centralized system for accessing and organizing messages.