Question 1

Simple mail transfer protocol (SMTP) is TCP/IP's own messaging system for email.

Accepted Answer

SMTP is a protocol used in the TCP/IP suite for sending emails across the Internet.

Question 2

The application layer serves as the window for users and application processes to access network services.

Accepted Answer

The application layer is the top layer of the OSI model and provides a user interface, facilitating access to network services for applications and users.

Question 3

File transfer protocol (FTP) allows files containing text, programs, graphics, numerical data, and so on to be downloaded off or uploaded onto a network.

Accepted Answer

FTP is a standard network protocol used for the transfer of computer files between a client and server on a computer network, supporting various types of files including text, programs, graphics, and numerical data.

Question 4

Coaxial cable refers to a type of cable composed of four (or more) copper wires twisted around each other within a plastic sheath.

Accepted Answer

Coaxial cable consists of a single copper conductor in the center, a dielectric insulator, a metallic shield, and an outer plastic sheath, not multiple twisted wires.

Question 5

FTP provides terminal emulation that allows a personal computer or workstation to act as a terminal, or access device, for a server.

Accepted Answer

FTP (File Transfer Protocol) is designed for transferring files over the internet, not for terminal emulation or acting as an access device for a server. Terminal emulation and remote access are functions of protocols like Telnet or SSH.

Question 6

Fiber optic (or optical fiber) refers to the technology associated with the transmission of information as light impulses along a glass wire or fiber.

Accepted Answer

Fiber optic technology involves the transmission of information as light pulses through thin strands of glass or plastic fibers, enabling high-speed data communication.

Question 7

What is a telecommunications system?

Accepted Answer

A telecommunications system enables the transmission of data over public or private networks, facilitating communication over distances.

Question 8

A protocol is the capability of two or more computer systems to share data and resources, even though they are made by different manufacturers.

Accepted Answer

A protocol is a set of rules or standards that allow different computer systems to communicate and share data, not the capability itself. The capability to share data and resources is referred to as interoperability.

Question 9

A WAN is a physical and data layer technology for LAN networking.

Accepted Answer

A WAN (Wide Area Network) is designed to connect computers across broader geographical areas, unlike a LAN (Local Area Network) which is intended for networking in more localized settings. WANs encompass a wider range of technologies and protocols at various layers of the OSI model, not just the physical and data layers.

Question 10

The transport layer formats the data into packets, adds a header containing the packet sequence and the address of the receiving device, and specifies the services required from the network.

Accepted Answer

The transport layer is responsible for segmenting data and controlling the reliability of communications across a network, but it does not add the address of the receiving device; addressing is handled at the network layer.

Question 11

What is a network?

Accepted Answer

A network is a system that connects two or more computers to facilitate communication, data exchange, and resource sharing, using established protocols.

Question 12

The network interface layer places data packets on the network for transmission.

Accepted Answer

The network interface layer, also known as the link layer or data link layer in some models, is responsible for placing data packets on the physical network medium (such as Ethernet, Wi-Fi, etc.) for transmission to another device.

Question 13

Wireless media are transmission material manufactured so that signals will be confined to a narrow path and will behave predictably.

Accepted Answer

Wireless media, such as radio waves or microwaves, do not require a physical medium for transmission and are not confined to a narrow path in the same way wired media are.

Question 14

Network transmission media refers to the various types of media used to carry the signal between computers.

Accepted Answer

Network transmission media are the physical pathways that connect computers, other devices, and people on a network to enable data transmission. Examples include twisted pair cables, coaxial cables, fiber-optic cables, and wireless transmission (e.g., radio waves).

Question 15

Simple network management protocol (SNMP) allows networked nodes to be managed from a single point.

Accepted Answer

SNMP is a protocol designed for managing complex networks by enabling the monitoring and control of networked devices from a central location.

Question 16

Which of the following is not one of the differentiating factors of a network?

Accepted Answer

The differentiating factors of a network include its architecture, topology, and the protocols it uses. The term "telecommunication system" is broader and not specifically a differentiating factor of a network. Networks are a part of telecommunication systems, but the system itself includes more components and considerations beyond just the network.

Question 17

The application layer handles end-to-end packet transportation.

Accepted Answer

The application layer is responsible for providing services to the user and does not handle end-to-end packet transportation. This function is primarily managed by the transport layer.

Question 18

Transmission control protocol/Internet protocol (TCP/IP) provides the technical foundation for the public Internet as well as for large numbers of private networks.

Accepted Answer

TCP/IP is a set of protocols that enable different networks to communicate, forming the basis of the Internet and many private networks, by standardizing how data is transmitted and received.

Question 19

Hypertext transfer protocol (HTTP) allows web browsers and servers to send and receive web pages.

Accepted Answer

HTTP is the foundation of data communication on the World Wide Web, enabling web browsers and servers to request and transmit web pages and other content.

Question 20

Twisted-pair cable can carry a wide range of frequencies with low signal loss. It consists of a metallic shield with a single wire placed along the center of a shield and isolated from the shield by an insulator.

Accepted Answer

Twisted-pair cable consists of pairs of insulated copper wires twisted together, not a single wire along the center of a shield. The twisting helps to reduce electromagnetic interference.

Quiz 24: Organizational Structures That Support Strategic Initiatives