Question 1

Different types of data can travel on Ethernets by being enclosed in another set of headers to form packets called Ethernet ________.

Accepted Answer

Data on Ethernets is encapsulated in frames, which contain Ethernet headers and trailers.

Question 2

A ________ network consists of computers and other devices that are either fully or partially connected to each other.

Accepted Answer

A mesh network is a type of network topology where each device is connected to other devices in the network either fully or partially, forming a mesh-like structure. This type of network allows for redundancy and multiple pathways for data to travel, making it resilient and reliable.

Question 3

________ is the set of rules that governs how a given node or workstation gains access to the network to send or receive data.

Accepted Answer

Media access control (MAC) is the set of rules that governs how a given node or workstation gains access to the network to send or receive data. It is a method used in network communication to establish a priority or order of access to the network. Packet switching and authentication service are related to network communication but do not specifically govern how a node gains access to the network. Source code and object-oriented language are related to programming and are not directly related to network communication.

Question 4

________ is based on the concept of turn taking and enables millions of users to send large and small chunks of data across the network concurrently.

Accepted Answer

Packet switching is based on the concept of turn taking, where large and small chunks of data are divided into smaller units called packets and sent across the network concurrently. This allows for more efficient use of network resources and enables faster transmission of data. Unicode is a character encoding standard, batch processing is a method of processing data in batches, JavaScript is a programming language, and an interexchange carrier is a type of telecommunications company. None of these are related to the concept of turn taking or concurrent data transmission.

Question 5

A(n)________ network is a computer network that spans a relatively small area,allowing all computer users to connect with each other to share data and peripheral devices,such as printers.

Accepted Answer

A local area network (LAN) is a computer network that covers a small geographic area, such as a single building or office. LANs typically allow users to share data and peripheral devices like printers, scanners, and storage devices.

Question 6

A data packet that conforms to the Internet protocol (IP)specification is called an IP ________.

Accepted Answer

A data packet that conforms to the Internet protocol (IP) specification is called an IP datagram.

Question 7

Which of the following statements is true of a bus network topology?

Accepted Answer

A bus network topology is characterized by all nodes being connected to a single communication line or cable. Messages sent on this line are broadcasted, meaning they are received by all network nodes simultaneously. This is distinct from other topologies like ring or star, which have different structures and methods for message transmission.

Question 8

________ transmission uses high-frequency radio signals that are sent through the air using either terrestrial (earth-based)systems or satellite systems.

Accepted Answer

Microwave transmission uses high-frequency radio signals that can travel through the air and be received by a receiver antenna. This type of transmission is commonly used in mobile communication and satellite communication systems.

Question 9

A(n)________ network is a wide area network (WAN)connecting disparate local area networks of a single organization into a single network.

Accepted Answer

An enterprise network connects multiple local area networks of a single organization into a single wide area network. This allows for seamless communication and resource sharing across different locations or branches of the organization. The other options (A, B, D, and E) do not accurately describe this type of network.

Question 10

________ is a LAN protocol using packet switching developed by the Xerox Corporation in 1976.

Accepted Answer

Ethernet is a LAN protocol developed by the Xerox Corporation in 1976 that uses packet switching to transmit data over a network. JavaScript and Flash memory are not LAN protocols, while Compiler and Primary Key are not related to networking protocols.

Question 11

Wireless local area networks (WLANs)based on a family of standards called 802.11 are also referred to as ________.

Accepted Answer

WLANs based on 802.11 standards are commonly known as Wi-Fi networks. Bluetooth technology is a different wireless communication standard used for short-range connections between devices. Ethernet is a wired networking technology. Personal area networks (PANs) and infrared line of sight are also different wireless communication standards used for specific purposes.

Question 12

A(n)________ network is an emerging technology that uses wireless communication to exchange data between computing devices using short-range radio communication,typically within an area of 10 meters.

Accepted Answer

The description given fits a personal area network (PAN), which uses short-range radio technology such as Bluetooth or ZigBee to connect devices within a range of 10 meters or less. Value-added, local area, enterprise, and campus area networks are all different types of networks that use different technologies and cover larger areas.

Question 13

________ computing is a computing model in which multiple types of computers are networked together to share data and services.

Accepted Answer

Distributed computing is a model where multiple types of computers are connected together, and each node has its own memory and processing power. These nodes communicate and share resources to collectively solve complex problems.

Question 14

A ________ network is configured in the shape of a closed loop or circle with each node connecting to the next node.

Accepted Answer

A ring network is configured in a closed loop or circle with each node connecting to the next node. It is also known as a circular topology. In a ring network, data travels in a circular fashion from one node to another until it reaches its destination. It is often used in LANs (Local Area Networks) where all the devices are located in a single building or a small geographical area.

Question 15

A ________ allows the use of Ethernet connections to connect to broadband modems,home networks,or work networks.

Accepted Answer

A network interface card (NIC) allows devices to connect to a network using Ethernet connections, enabling communication with broadband modems, home networks, or work networks.

Question 16

The ________ model represents a group of specific tasks as successive layers that enable computers to communicate data.

Accepted Answer

The Open Systems Interconnection (OSI) model represents a group of specific tasks as successive layers that enable computers to communicate data. It is a conceptual model that divides the communication process into seven layers, each layer performing specific functions necessary for communication between two or more devices over a network. The other choices are not related to this concept.

Question 17

________ are private,third-party-managed WANs typically used for B2B communications.

Accepted Answer

Value-added networks (VANs) are private, third-party-managed WANs that are commonly used for B2B communications. These networks provide additional services such as data translation, encryption, and security to enhance the communication process between businesses. Enterprise networks (B) and global networks (C) refer to broader categories of networks that can include VANs, but are not specific to B2B communications. Local area networks (D) and personal area networks (E) are types of LANs that are used for local communications within a business or personal environment, respectively.

Question 18

In which of the following network topologies are all the nodes or workstations connected to a central hub through which all messages pass?

Accepted Answer

In a star network, all nodes or workstations are connected to a central hub or switch through which all messages pass. This hub or switch is responsible for managing the network traffic and ensures that messages are routed to the correct destination node. Therefore, the star network is the best choice for the given scenario. The other options (square, mesh, bus, and ring) do not involve a central hub, and messages may have to pass through multiple nodes before reaching their destination, which can lead to network congestion and slow performance.

Question 19

Which of the following methods is used for random access control in wireless LAN?

Accepted Answer

Carrier Sense Multiple Access (CSMA) is a method used for random access control in wireless LANs, allowing devices to sense the carrier before transmitting to avoid collisions.

Question 20

Which of the following methods uses high-frequency light waves to transmit signals on an unobstructed path between nodes?

Accepted Answer

Infrared line of sight communication uses high-frequency light waves to transmit signals directly between nodes without any physical connection, requiring a clear, unobstructed path to function effectively.

Quiz 11: Appendix: Technology Briefing: Foundations of Information Systems Infrastructure