Question 1

Briefly describe how the DNS helps users communicate with each other.

Accepted Answer

The answer of Briefly describe how the DNS helps users...

Question 2

TCP and IP operate above http and the other application transfer protocols.

Accepted Answer

TCP/IP operates at a lower layer than HTTP and other application transfer protocols, providing the foundational communication services they rely on.

Question 3

Routing protocol that is in charge of forwarding packets on the Internet is known as voice over Internet protocol.

Accepted Answer

Voice over Internet Protocol (VoIP) is a technology that allows voice to be sent over the Internet, rather than traditional phone lines or cellular networks, and is not a routing protocol.

Question 4

A technique known as _____ uses a gateway that allows multiple devices to share a single IP address. This can be useful in organizations that have a limited number of conventional IP addresses.

Accepted Answer

The answer of A technique known as _____ uses a...

Question 5

_____ is the language used to compose Web pages.

Accepted Answer

The answer of _____ is the language used to compose...

Question 6

The Internet Protocol Suite consists of the Internet Protocol and _____.

Accepted Answer

The Internet Protocol Suite, commonly known as TCP/IP, consists of the Internet Protocol (IP) and the Transmission Control Protocol (TCP). These protocols work together to provide end-to-end data communication specifying how data should be packetized, addressed, transmitted, routed, and received at the destination.

Question 7

The fault-tolerant nature of the DNS ensures that:

Accepted Answer

The DNS (Domain Name System) is designed to be fault-tolerant, meaning it can continue to operate even if one or more of its servers (nameservers) fail. This redundancy ensures that domain name requests can still be resolved, maintaining the accessibility of websites and online services.

Question 8

Routers don't have perfect, end-to-end information on all points in the Internet.

Accepted Answer

Routers operate using local information about their immediate neighbors and network conditions. They do not have a complete, end-to-end map of the entire Internet, as this would require an impractical amount of storage and constant updates due to the dynamic nature of the Internet's topology.

Question 9

The User Datagram Protocol (UDP) acts as a substitute to TCP when there is a need for speed of communication, but where perfect and complete transmission quality can be sacrificed.

Accepted Answer

UDP is used instead of TCP in situations where speed is critical and the application can tolerate some loss of data, as UDP does not provide the error checking and correction mechanisms that TCP does.

Question 10

Wall Street traders often choose a colocation facility with the goal to provide high-latency connectivity to their partners.

Accepted Answer

Wall Street traders choose a colocation facility to provide low-latency connectivity to their partners, aiming for the fastest possible transaction and data exchange speeds.

Question 11

ISPs and IXPs that carry out peering are required by the FCC to charge each other fees based on their traffic contribution.

Accepted Answer

ISPs and IXPs that carry out peering often do so on a settlement-free basis, especially when their traffic exchange is roughly symmetrical, meaning they do not charge each other fees based on their traffic contribution.

Question 12

_____ refers to the application transfer protocol that is used to copy files from one computer to another.

Accepted Answer

The answer of _____ refers to the application transfer protocol...

Question 13

_____ is the nonprofit organization responsible for managing the Internet's domain and numbering systems.

Accepted Answer

The answer of _____ is the nonprofit organization responsible for...

Question 14

The TCP works at both ends of Internet communication.

Accepted Answer

TCP (Transmission Control Protocol) operates at both the sending and receiving ends of internet communication to ensure reliable and ordered delivery of data packets.

Question 15

The exploit referred to as __________ allowed hackers to leverage vulnerability in DNS software to redirect users to sites they did not request.
a. cybersquatting.
b. phishing.
c. an online imposture.
d. cache poisoning.
e. a distributed denial of request.

Accepted Answer

The answer of The exploit referred to as __________ allowed...

Question 16

The protocol used for exchange of mail between e-mail servers across the world is called _____.

Accepted Answer

The answer of The protocol used for exchange of mail...

Question 17

Identify the various components in the following Web address and briefly describe each of them:

Accepted Answer

The answer of Identify the various components in the following...

Question 18

Computer programs making decisions without any human intervention conduct most U.S. stock trading.

Accepted Answer

Most U.S. stock trading is conducted by algorithms or computer programs that make decisions to buy or sell stocks at high speeds without human intervention, significantly outpacing traditional manual trading methods.

Question 19

A(n) _____ is a temporary storage space used to speed computing tasks.

Accepted Answer

A cache is a hardware or software component that stores data so future requests for that data can be served faster.

Question 20

Circuit-switched networks are advantageous because they offer an inexhaustible supply of bandwidth for telecommunications.

Accepted Answer

Circuit-switched networks allocate a dedicated path for the duration of a communication session, limiting the amount of bandwidth to that of the dedicated path, rather than offering an inexhaustible supply.

Quiz 16: A Managers Guide to the Internet and Telecommunications