Question 1

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 2

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

Accepted Answer

High-frequency trading algorithms make up a significant portion of the U.S. stock market, and these programs make decisions on trades without human intervention.

Question 3

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

Accepted Answer

The FCC does not require ISPs and IXPs that carry out peering to charge each other fees. Peering agreements are typically based on mutual benefit and traffic exchange.

Question 4

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

Accepted Answer

Circuit-switched networks allocate a fixed amount of bandwidth for each call, which can result in inefficient use of resources and congestion during peak usage times. Packet-switched networks, on the other hand, dynamically allocate bandwidth as needed, making more efficient use of available resources.

Question 5

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 exploit referred to as cache poisoning involves leveraging vulnerabilities in DNS software to redirect users to sites they did not request. This allows attackers to redirect users to a malicious website, where they can potentially steal login credentials or other sensitive information.

Question 6

_____ is the language used to compose Web pages.

Accepted Answer

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

Question 7

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 8

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

Accepted Answer

Routers only have information on the networks they are directly connected to and rely on other routers to pass on information about other parts of the Internet. Therefore, they don't have perfect, end-to-end information on all points in the Internet.

Question 9

The fault-tolerant nature of the DNS ensures that:
A) if users can't reach a host computer, they are redirected back to the previous page.
B) mistyped or misspelled Web addresses are automatically corrected.
C) if a document or file can't be accessed, it won't result in a 404 error.
D) the service continues functioning even if one nameserver goes down.
E) mismatched host names and domain names are still assigned with the correct IP address.

Accepted Answer

The fault-tolerant nature of the DNS ensures that the service continues functioning even if one nameserver goes down. This is achieved by having multiple redundant nameservers that can take over if one fails. Options A, B, C, and E are not correct because the DNS does not have the ability to redirect users, correct mistyped or misspelled Web addresses, prevent 404 errors, or ensure correct assignment of IP addresses.

Question 10

One of the functions of the IP is to:
A) route message packets to the final destination.
B) slice up the message into smaller chunks of data called packets, to be sent over the network.
C) check for damaged or corrupt message packets and request for replacements, if needed.
D) label message packets with source and destination addresses.
E) rearrange message packets in the same sequence as they were sent.

Accepted Answer

The answer of One of the functions of the IP...

Question 11

The TCP works at both ends of Internet communication.

Accepted Answer

TCP (Transmission Control Protocol) is a protocol that works at both ends of Internet communication. It is responsible for ensuring reliable and ordered delivery of data packets between devices.

Question 12

_____ 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 13

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 a connectionless protocol that does not guarantee perfect transmission quality and is used when speed is more important than reliability.

Question 14

The Internet Protocol Suite consists of the Internet Protocol and _____.
A) File Transfer Protocol
B) Simple Mail Transfer Protocol
C) Session Initiation Protocol
D) Datagram Congestion Control Protocol
E) Transmission Control Protocol

Accepted Answer

The Internet Protocol Suite consists of the core protocols including the Internet Protocol (IP) and the Transmission Control Protocol (TCP). While other protocols such as FTP, SMTP, and SIP are important in their own right, they are not core components of the Internet Protocol Suite. The Datagram Congestion Control Protocol is a non-existent protocol.

Question 15

_____ 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 16

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 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

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 19

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

Accepted Answer

The routing protocol that is in charge of forwarding packets on the Internet is known as Internet Protocol (IP). Voice over Internet Protocol (VoIP) is a technology that allows users to make voice calls over the Internet protocol instead of traditional phone lines.

Question 20

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

Accepted Answer

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

Quiz 16: A Managers Guide to the Internet and Telecommunications