Exam 10: Communicating Digital Content

Which of the following is the maximum transfer transmission rate for communications satellites?

Most of today's computer networks use coaxial cable.

In a networked environment, no authorized computer user can access data and information stored on other computers on the network.

Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?

____________________ allows users connected to a network to transfer money from one account to another via transmission media.

Which of the following can detect problems-such as why traffic is flowing slowly-on networks that use the TCP/IP protocol?

What is the purpose of hubs and switches?

One of the more widely used transmission media for network cabling and landline phone systems is twisted-pair cable.

-The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called?

Critical Thinking Questions Case 10-2 The area of network communications standards is an area with which you are not familiar, so you have decided to study it in some detail. You expect to have to network a wide range of devices in the near future, so this is a timely subject of study. -You are looking for a technology that will replace the requirement for a line-of-sight transmission between devices like digital cameras, fax machines, and printers, and you also would like the data transfers between the devices to occur at a rate of up to 3 Mbps. Which of the following network standards is a good match for your needs? a. Wi-Fi b. RFID c. Bluetooth d. TCP/IP

Infrared requires ____________________ transmission, that is, the sending device and the receiving device must be in line with each other so that nothing obstructs the path of the infrared light wave.

A MAN usually is managed by a consortium of users or by a single network provider that sells the service to the users.

Only small networks use routers.

Consumers can purchase blank NFC tags at a reasonable cost and easily program them to perform certain actions.

Which of the following technologies is your new inventory tracking system at your small business most likely to use?

A(n) ____________________ is a network that connects computers and devices in a limited geographical area, such as a home, school computer laboratory, or office building.

Hot spots offer mobile users the ability to connect to the Internet with their Wi-Fi enabled wireless computers and devices.

Which of the following is true of broadcast radio with regard to physical transmission media?

Critical Thinking Questions Case 10-2 The area of network communications standards is an area with which you are not familiar, so you have decided to study it in some detail. You expect to have to network a wide range of devices in the near future, so this is a timely subject of study. -You are looking for a way to transmit signals through a door, and with a high transfer rate, because you have some video to transfer from a digital video camera. Which of the following protocols is the best bet for you? a. Wi-Fi b. IrDA c. Bluetooth d. UWB

Which of the following can be avoided if a computer or mobile device has a motherboard that integrates networking capability?