QUESTION: 65

A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format.
Which of the following refer to the use of computers in the workplace? Each correct answer represents a complete solution. Choose all that apply.

Law enforcement
Entertainment
Banking
Manufacturing
Weather forecasting and tracking
Medical

Answer(s): A,B,C,D,E,F

Explanation:

Following are the uses of computers in the workplace:
Banking: Computers have made banking easy and effective. Now, users can do Internet banking at their home to perform various tasks. For example, the Automatic Teller Machine (ATM) helps users in the transaction of money.
Entertainment: Computers have also captured a lot of entertainment area. Users can play games, watch movies, and record video and audio. Law enforcement: Computers play a vital role in communications, investigation, and management functions of police and other law professionals. Manufacturing: Computers play a vital role in manufacturing. It helps manufacturers to consistently assemble products and to plan, monitor, and control the production. Medical: Computers are boon for medical field because they provide a platform to diagnose and study various diseases. Computers also help in information management, patient monitoring, and laboratory testing. Weather forecasting and tracking: Super computers play a vital role to track, predict, and monitor weather conditions. Computers also help to detect earthquakes and volcanic action. Global Positioning System (GPS) enabled devices help in tracking and satellite communication.

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QUESTION: 66

Which of the following is an upgraded standard in connecting computers into a local area Network (LAN)?

10Base5
Fast Ethernet
Token Ring
10Base2

Answer(s): B

Explanation:

Fast Ethernet is a local area network (LAN) transmission standard that provides a data rate of 100 megabits per second (referred to as '100BaseT'). Workstations with an existing 10 megabit per second (10BaseT) Ethernet card can be connected to a Fast Ethernet network. Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 megabits per second, against the original Ethernet speed of 10 megabits per second.
Answer option C is incorrect.
A Token Ring network is a local area network (LAN) in which all computers are connected in a ring or star topology and a bit- or token-passing scheme is used in order to prevent the collision of data between two computers that want to send messages at the same time. The Token Ring protocol is the second most widely-used protocol on local area networks after Ethernet. The IBM Token Ring protocol led to a standard version, specified as IEEE 802.5. Both protocols are used and are very similar. The IEEE 802.5 Token Ring technology provides for data transfer rates of either 4 or 16 megabits per second.
Answer option D is incorrect. 10Base2 is a type of cable, also known as Thinnet Coax. The maximum length of a 10base2 cable network can be 185 meters. 10Base2 cable is used in Bus topology. 10Base2 network uses the British Naval Connector (BNC) along with the T connectors to connect to the LAN card.
Answer option A is incorrect. 10Base5 is an IEEE standard for baseband Ethernet coaxial cable. It transfers data at 10Mbps, which can travel a maximum distance of 500 meters. 10Base5 is also known as thick Ethernet, ThickWire, and ThickNet. The characteristics of 10Base5 are summarized in the table given below:

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QUESTION: 67

Electronic communication technology refers to technology devices, such as computers and cell phones, used to facilitate communication.
Which of the following is/are a type of electronic communication?
Each correct answer represents a complete solution. Choose all that apply.

Internet teleconferencing
Instant messaging
Post-it note
Electronic mail E. Internet telephony F:Blogs

Answer(s): A,B,D

Explanation:

A blog is a type of website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. Blog can also be used as a verb, meaning to maintain or add content to a blog.Many blogs provide commentary or news on a particular subject; others function as more personal online diaries.
A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability of readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (Art blog), photographs (photoblog), videos (Video blogging), music (MP3 blog), and audio (podcasting). Microblogging is another type of blogging, featuring very short posts.
A teleconference or teleseminar is the live exchange and mass articulation of information among several persons and machines remote from one another but linked by a telecommunications system. Terms such as audio conferencing, telephone conferencing and phone conferencing are also sometimes used to refer to teleconferencing. Internet teleconferencing includes internet telephone conferencing, videoconferencing, web conferencing, and Augmented Reality conferencing. E-mail (electronic mail) is a method of exchanging of computer-stored messages by telecommunication. E-mail messages are usually encoded in ASCII text. However, a user can also send non-text files, such as graphic images and sound files, as attachments sent in binary streams. E-mail was one of the first applications being made available on the Internet and is still the most popular one.
A large percentage of the total traffic over the Internet is of the e-mails. E-mails can also be exchanged between online service provider users and in networks other than the Internet, both public and private. E-mails can be distributed to lists of people as well as to individuals.
A shared distribution list can be managed by using an e-mail reflector. Some mailing lists allow you to subscribe by sending a request to the mailing list administrator.
A mailing list that is administered automaticallyis called a list server.E -mail is one of the protocols included with the Transport Control Protocol/Internet Protocol (TCP/IP) suite of protocols.
A popular protocol for sending e-mails is Simple Mail Transfer Protocol and a popular protocol for receiving it is POP3. Both Netscape and Microsoft include an e-mail utility with their Web browsers. Internet telephony refers to communication services such as voice, facsimile, and/or voice-messaging applications that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end. Internet telephony involves conducting a teleconference over the Internet or a Wide Area Network. One key technology in this area is Voice over Internet Protocol (VOIP). Popular software for personal use include Skype, Google Talk, Vonage, Speakeasy, Windows Live Messenger and Yahoo Messenger. Instant messaging (IM) is a form of real-time direct text-based communication between two or more people using personal computers or other devices, along with shared software clients. The user's text is conveyed over a network, such as the Internet. More advanced instant messaging software clients also allow enhanced modes of communication, such as live voice or video calling.IM falls under the umbrella term online chat, as it is a real-time text-based networked communication system, but is distinct in that it is based on clients that facilitate connections between specified known users (often using Buddy List, Friend List or Contact List), whereas online 'chat' also includes web-based applications that allow communication between users in a multi-user environment.
Answer option C is incorrect. Post-it notes are not a type of electronic communications.

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QUESTION: 68

In which of the following electronic communication types does an individual maintain a site with regular entries of commentary, description of events, or other material such as graphics or video?

Instant messaging
Internet telephony
Teleseminar
Blog

Answer(s): D

Explanation:

A blog is a type of website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. Blog can also be used as a verb, meaning to maintain or add content to a blog. Many blogs provide commentary or news on a particular subject; others function as more personal online diaries.
A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability of readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (Art blog), photographs (photoblog), videos (Video blogging), music (MP3 blog), and audio (podcasting). Microblogging is another type of blogging, featuring very short posts.
Answer option C is incorrect.
A teleconference or teleseminar is the live exchange and mass articulation of information among several persons and machines remote from one another but linked by a telecommunications system. Terms such as audio conferencing, telephone conferencing and phone conferencing are also sometimes used to refer to teleconferencing. Internet teleconferencing includes internet telephone conferencing, videoconferencing, web conferencing, and Augmented Reality conferencing.
Answer option A is incorrect. Instant messaging (IM) is a form of real-time direct text-based communication between two or more people using personal computers or other devices, along with shared software clients. The user's text is conveyed over a network, such as the Internet. More advanced instant messaging software clients also allow enhanced modes of communication, such as live voice or video calling. IM falls under the umbrella term online chat, as it is a real-time text-based networked communication system, but is distinct in that it is based on clients that facilitate connections between specified known users (often using Buddy List, Friend List or Contact List), whereas online 'chat' also includes web-based applications that allow communication between users in a multi-user environment.
Answer option B is incorrect. Internet telephony refers to communication services such as voice, facsimile, and/or voice-messaging applications that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end. Internet telephony involves conducting a teleconference over the Internet or a Wide Area Network. One key technology in this area is Voice over Internet Protocol (VOIP). Popular software for personal use include Skype, Google Talk, Vonage, Speakeasy, Windows Live Messenger and Yahoo Messenger.

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