Question 1

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

Accepted Answer

TCP and IP are lower-level protocols that operate below HTTP and other application layer protocols in the OSI model.

Question 2

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

Accepted Answer

Circuit-switched networks allocate a dedicated connection for each call, which occupies a certain amount of bandwidth throughout the duration of the call. Therefore, the amount of available bandwidth is limited and not inexhaustible. This is in contrast to packet-switched networks, such as the internet, which can dynamically allocate bandwidth as needed.

Question 3

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 4

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 through the use of multiple redundant nameservers that store copies of DNS records, so if one nameserver goes down, the others can still respond to queries.

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 _____. 
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 (also known as TCP/IP) consists of the Internet Protocol (IP) and Transmission Control Protocol (TCP) as the two main protocols. While File Transfer Protocol (FTP), Simple Mail Transfer Protocol (SMTP), Session Initiation Protocol (SIP), and Datagram Congestion Control Protocol (DCCP) are also often associated with the suite, they are not considered integral to it.

Question 7

A(n) _____ is a temporary storage space used to speed computing tasks.
A)cache
B)IP address
C)Protocol
D)domain name service
E)hypertext markup language

Accepted Answer

A cache is a temporary storage space used to speed computing tasks by storing frequently accessed or recently used data closer to the processor, thereby reducing the time required to access the data from the main memory.

Question 8

The TCP works at both ends of Internet communication.

Accepted Answer

The TCP (Transmission Control Protocol) works at both the sending and receiving ends of Internet communication to ensure reliable delivery of data. It is a core protocol of the Internet Protocol (IP) suite.

Question 9

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

Accepted Answer

High-frequency trading algorithms conduct a significant portion of U.S. stock market trading without direct human intervention.

Question 10

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 11

Identify the various components in the following Web address and briefly describe each of them: 
http://en.wikipedia.org/wiki/Web_address

Accepted Answer

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

Question 12

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

Cache poisoning is the exploit that allows attackers to hijack or redirect traffic to sites they did not request by compromising the DNS servers. The attackers inject fraudulent DNS entries into the cache of the DNS resolver, leading users to the wrong websites.

Question 13

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 the transmission of voice and multimedia content over IP networks.

Question 14

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 colocation facilities to achieve low-latency connectivity, which allows for faster data transmission and quicker trade execution.

Question 15

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

Accepted Answer

Routers only have information up to the next immediate point in the network, and they rely on other routers to forward packets to their destination. There isn't a single database that contains information on all points in the Internet.

Question 16

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

The statement is true. UDP is a connectionless protocol that allows for faster communication at the cost of reliability. Unlike TCP, it does not provide mechanisms for error checking or retransmission of lost data packets. Therefore, UDP is typically used for applications where minor losses or errors are acceptable, such as video streaming or online gaming.

Question 17

_____ 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 18

_____ 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 19

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 to charge each other fees for peering. Peering agreements are generally negotiated between the parties involved and may or may not involve fees based on factors such as traffic volume and location of the peering point.

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