Lesson 3 Internet Technology

What is a wide area network (WAN)?

• A node on a network that serves as a portal to other networks

• Two or more local area networks (LANs) that spoan a wide geographic area

• A set of protocols that enable clients and servers to communicate

• A group of computers connected within a confined geographic area

Which of the following is used solely to resolve human-readable domain names into their computer-readable IP addresses?

• Reverse domain name servers

• Domain name servers

• Virtual domain name servers

• Shared domain name servers

What type of server are you accessing when you download software programs and documents from websites?

• A HTTP Server

• SMTP Server

• POP Server

• FTP Server

In computer terminology, what is a network?

• A computer that manages system resources and provides information to other computers

• A device that interacts with another device through a central server to which they are both connected

• A group of two or more computers connected so they can communicate, share resources & exchange information with one another

• A system that requests a service from another computer that is used to access files or documents

What is a top-level domain in the Domain Name System (DNS)?

• The left-side component of a domain name, which categorizes domains into groups by server name

• The right-side component of a domain name, which categorizes domains into groups by common type or geography

• The left-side component of a domain name, which categorizes domains into groups by common type or geography

• The right-side component of a domain name, which categorizes domains into groups by server name

Which of the following connection types provides the fastest direct connection speed?

• Fiber-Optic Cable

• T1 Line

• T3 Line

• Cable Modem

What function does the Domain Name System (DNS) perform?

• It makes up the IP address of an Internet Protocol version 4 (IPv4) address

• It allows a computer to connect to the Internet over a phone line

• It provides text output that users can access at their convenience and allows multiperson input

• It resolves IP addresses into easily recognizable text-based names

Which of the following wireless mode types uses a centralized access point known as a wireless access point (AP)?

• Infrastructure

• Cable Modem

• Ad-Hoc

• LAN

Which of the following protocols can connect an entire network to the internet?

• Internet Protocol version 6 (IPv6)

• Point-to-Point Protocol (PPP)

• Point-to-Point Protocol over Ethernet (PPPoE)

• Hyper Text Transfer Protocol (HTTP)

How are wide area networks (WANs) created?

• By connecting LANs to one another via public carriers

• By consolidating network equipment into one physical location

• By connecting LANs to one another via network clients

• By distributing network equipment among two or more buildings