Question 1

In the early 1980s, TCP/IP was used only in the United States.

Accepted Answer

TCP/IP was adopted internationally, not just in the United States, especially after it became the standard for ARPANET (the precursor to the internet) in 1983, facilitating global connectivity and communication.

Question 2

Everyone today shouldn't buy their own I/O units or storage devices because it is not a cost-effective way to configure computer systems.

Accepted Answer

It is more cost-effective to purchase I/O units and storage devices as part of a complete computer system, rather than buying them separately.

Question 3

A(n)____________________ is a "smarter" device that has knowledge about the nodes located on each separate network.

Accepted Answer

bridge

Question 4

A technology called narrowband has rapidly been replacing modems and analog phone lines for data communications to and from our homes, schools, and offices. _________________________

Accepted Answer

Narrowband technology, which refers to a type of data transmission over telephone lines, has largely been superseded by broadband technology for faster and more efficient data communications in homes, schools, and offices.

Question 5

A digital subscriber line is always symmetric, which means that it has the same transmission speed in the download direction as in the upload direction.

Accepted Answer

Digital Subscriber Line (DSL) can be asymmetric (ADSL), where download and upload speeds are different, or symmetric (SDSL), where both speeds are the same. Most consumer DSL connections are ADSL.

Question 6

The term switched, dial-up means that when you dial a telephone number, a temporary circuit is established between the caller and the call recipient.

Accepted Answer

Switched dial-up refers to the process where a temporary circuit is established between the caller and the recipient through the telephone network, allowing for the transmission of data or voice.

Question 7

In September 1999, the IEEE ratified the 100-gigabit Ethernet standard.

Accepted Answer

The IEEE ratified the 100-gigabit Ethernet standard (IEEE 802.3ba) in June 2010, not in September 1999.

Question 8

A single webpage is identified by a symbolic string called a(n)protocol . _________________________

Accepted Answer

A single webpage is identified by a symbolic string called a URL (Uniform Resource Locator), not a protocol. Protocols (such as HTTP or HTTPS) are part of a URL.

Question 9

The NSF planned and built a national network called NSFNet, which used TCP/IP technology identical to the ARPANET.

Accepted Answer

The National Science Foundation (NSF) indeed planned and built a national network called NSFNet, which utilized TCP/IP technology, the same technology used by ARPANET, to facilitate academic and research communication across the United States.

Question 10

The individual computers on the network are referred to as ____________________.

Accepted Answer

The answer of The individual computers on the network are...

Question 11

The ring topology connects the network nodes in a circular fashion, with messages circulating in either a clockwise or counterclockwise direction until they reach their destination. _________________________

Accepted Answer

In a ring topology, each node is connected to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring. Data travels around the ring in one direction (either clockwise or counterclockwise), and each device on the network acts as a repeater to send the data to the next device.

Question 12

____________________ has been the single most popular application of networks for the last 35 years.

Accepted Answer

The answer of ____________________ has been the single most popular...

Question 13

The World Wide Web was completed and made available to all researchers at CERN in August 1991, the date that marks the birth of the web.

Accepted Answer

The World Wide Web was indeed made available to all researchers at CERN in August 1991, marking the public launch of the web.

Question 14

Groupware is software that facilitates the efforts of individuals connected by a network and working on a single, shared project.

Accepted Answer

Groupware is designed to help people involved in a common task achieve their goals by providing tools that support communication, collaboration, and coordination of efforts across a network.

Question 15

A(n)____________________ is an information block with a fixed maximum size that is transmitted through the network as a single unit.

Accepted Answer

The answer of A(n)____________________ is an information block with a...

Question 16

The Network layer of the Internet, IP, is inherently an extremely reliable communication channel.

Accepted Answer

The IP protocol does not guarantee delivery, ordering, or error-free transmission, making it an unreliable communication channel by design. Reliability is provided by higher-level protocols like TCP.

Question 17

Generally, it is difficult to intercept transmissions and gain unauthorized access to wireless networks.

Accepted Answer

Wireless networks, by their nature, broadcast information through the air, making it easier for unauthorized users to intercept transmissions if proper security measures are not in place.

Question 18

While WiMAX is great for communicating with a nearby router, its transmission limit means it cannot provide mobile Internet access from a car or outdoor site far from any base station. _________________________

Accepted Answer

WiMAX is designed for wide-area coverage and can provide mobile Internet access over much larger distances than typical Wi-Fi, making it suitable for use in cars or outdoor sites far from a base station.

Question 19

A LAN connects devices that are not in close proximity but rather are across town, across the country, or across the ocean. _________________________

Accepted Answer

A LAN (Local Area Network) connects devices in a relatively small, localized area such as a single building or campus, not across town or larger distances.

Question 20

In the ____________________ topology all nodes are connected to a single, shared communication line.

Accepted Answer

The answer of In the ____________________ topology all nodes are...

Quiz 7: Computer Networks and Cloud Computing