IT 205 Week 4 Week Four Knowledge Check

Week 4 Knowledge Check

The material presented below is not meant to be a comprehensive list of all you need to know in the content area. Rather it is a starting point for building your knowledge and skills. Additional study materials are recommended in each area below to help you master the material.

Personalized Study Guide Results

Score 15 / 15

Concept: Telecommunications Networks

Materials on the concept

• Review Summary
• 6.1. Telecommunications and Networking in Today’s Business World
• Physical Transmission Media
• 6.4. The Wireless Revolution

1.

What are the principal components of a telecommunications network?

Computers, client–server devices, and smart phones

Voice or data computers, network interfaces, and transmission medium

Modems, transmission links, and wireless access points

TCP/IP software, modems, and transmission links

2.

What are the key technologies used in today’s telecommunications networks?

The increased use of the Internet, circuit switching, and fiber optics

The increased use of smart phones, wi-fi, and metro Ethernet

Metro Ethernet, wi-fi, and cloud computing

Packet switching; voice, data, and video networks; and TCP/IP

3.

What transmission media are used in most telecommunications networks?

DSL lines, wi-fi, fiber optic cable, and telephone lines

LANs, MANs, and WANs

Fiber optic cable, coaxial copper cable, and twisted-pair copper cable

Ethernet, TCP/IP, and wi-fi

Concept: Networking Technologies

Materials on the concept

• Technology
• Review Summary
• 6.1. Telecommunications and Networking in Today’s Business World
• Physical Transmission Media
• 6.4. The Wireless Revolution

4.

What are the principal components of a data communications network?

Physical devices, transmission links, and software

TCP/IP software, modems, and transmission links

Modems, transmission links, and wireless access points

Mainframe computers, client/server devices, and smart phones

5.

What are the key technologies used in contemporary data communications networks?

The Internet, circuit switching, and fiber optics

Client/server computing, packet switching, and the TCP/IP protocol

Metro Ethernet, wi-fi, and cloud computing

Smart phones, wi-fi, and metro Ethernet protocol

6.

What transmission media are used in data communications networks?

DSL lines, wi-fi, and fiber optic cable

LANs, MANs, and WANs

Wireless, fiber optic cable, and twisted-pair copper cable

Ethernet, TCP/IP, and wi-fi

Concept: The Internet

Materials on the concept

• 6.3. The Global Internet
• Internet Services and Communication Tools
• Internet Services
• Telecommunications, the Internet, and Wireless Technology
• 6.1. Telecommunications and Networking in Today’s Business World

7.

How does the Internet operate?

The Internet uses unique addresses to identify computers, enabling them to exchange data on a global basis.

The World Wide Web enables the Internet to determine where searches should be performed on a global basis.

The world’s largest and most widely used network, the Internet, uses address permissions to connect functions.

The Internet uses the client/server model and the TCP/IP to deliver connectivity

8.

What Internet-based services are used by most people today?

E-mail, newsgroups, instant messaging, file transfer, and accessing web pages

E-mail, voice over IP, bandwidth, and video conferencing

E-mail, Ethernet, interactive video, and video over IP

E-mail, TCP/IP links and accessing web pages, ME, and back-end systems

9.

Which of the following best represents how Internet technology helps a company operate?

A company’s website creates and communicates with the business.

Customers communicate about a company’s products from its website.

The Internet communicates with a company to establish a professional image.

The Internet helps a company communicate with its customers, suppliers, and employees

Concept: Wireless Technologies

Materials on the concept

• Wireless Computer Networks and Internet Access
• Review Summary
• RFID and Wireless Sensor Networks
• Radio Frequency Identification (RFID)
• Bluetooth

10.

What are the leading standards for wireless computer networks?

Bluetooth, wi-fi, and GSM

Bluetooth, wi-fi, and 3G

Bluetooth, wi-fi, and WiMax

Bluetooth, wi-fi, and 4G

11.

How can radio frequency identification (RFID) technology be used to improve inventory control and distribution operations?

RFID tracks the shipments of goods while in transit.

RFID helps a company see where sales are greatest for each item in inventory.

RFID helps a company see what stock is stored in warehouses or on retail store shelves.

RFID tracks where customers are buying specific products

12.

How is Bluetooth (802.15) wireless communications technology typically used today?

Technology automatically pairs devices whenever they are docked near another Bluetooth station.

Wireless devices communicate with each other and can operate without user intervention.

Wireless devices provide compatibility among all power outlet devices.

Wireless devices support a robust quality-of-service featuring both voice and data

Concept: Cellular Technologies

Materials on the concept

• Cellular Systems
• 6.4. The Wireless Revolution

13.

What are the advantages of code division multiple access (CDMA) cellular technology versus global systems for mobile communication (GSM)?

CDMA is less expensive to build, more efficient in its use of bandwidth and provides higher throughput.

CDMA is the technology used by the largest carriers including Verizon and T-Mobile and it minimizes roaming costs when connecting to a different carrier.

CDMA is more expensive to build but it offers support for simultaneous voice and data.

CDMA supports international roaming and a better web browsing experience

14.

What is the primary advantage of 4G cellular networks versus 3G cellular networks?

Simultaneous voice and data

Location–based services

Speed of data transmission

Web-browsing including video

15.

What is the primary advantage of GSM when considering the purchase of a cell phone or smart phone?

Support for voice and data communications

The SIM card to activate a new device

Efficient use of wireless spectrum

International roaming capability