Question 1

Drawbacks to a single-LAN strategy are: reliability,capacity,and _________.

Accepted Answer

The answer of Drawbacks to a single-LAN strategy are: reliability,capacity,and...

Question 2

A design factor relating to the transmission medium and the signal to determine the data rate and distance is:

Accepted Answer

Bandwidth, transmission impairments, and interference all play crucial roles in determining the data rate and distance over a transmission medium. Bandwidth affects the amount of data that can be transmitted in a given time, transmission impairments (like attenuation and noise) can reduce signal quality and thus data rate and distance, and interference from external sources can also negatively impact the transmission's effectiveness.

Question 3

A ___________ is a separate network to handle storage needs.

Accepted Answer

A SAN (Storage Area Network) is a separate network dedicated to handling the storage needs of an organization. It allows multiple servers to access a shared pool of storage devices, such as disks and tape drives, that are not directly attached to any server. This enables organizations to efficiently manage and utilize their storage resources, improving performance and reliability while reducing costs. NAN (Near Area Network) is not a commonly used term, while LAN (Local Area Network) and MAC (Media Access Control) are not specifically designed for storage purposes.

Question 4

A service provided as an alternative for attached devices using LLC is:

Accepted Answer

The Logical Link Control (LLC) layer in the IEEE 802 networking architecture can provide various types of services, including unacknowledged connectionless service, connection-mode service, and acknowledged connectionless service, as alternatives for attached devices.

Question 5

Which of the following is NOT one of the characteristics of a building wiring scheme using a structured cabling system?

Accepted Answer

Structured cabling systems are designed to support multiple uses on a single cabling system, eliminating the need for separate cabling systems for data, voice, and video applications.

Question 6

Which of the following is a characteristic of a backend network?

Accepted Answer

Backend networks are characterized by high data rates, distributed access, and limited distances, as they are designed to support the demands of data center operations and internal server-to-server communications.

Question 7

A __________ can be described as a separate network of storage devices that are physically removed from,but still connected to,the network.

Accepted Answer

The answer of A __________ can be described as a...

Question 8

In a data transmission system,the __________ is the physical path between transmitter and receiver.

Accepted Answer

The answer of In a data transmission system,the __________ is...

Question 9

In most _______________ protocols,the data link protocol entity is responsible not only for detecting errors using the CRC,but for recovering from those errors by retransmitting damaged frames.

Accepted Answer

The data link control protocol entity is responsible for error detection and recovery by retransmitting damaged frames. Logical link control and media access control protocols may also have error detection mechanisms, but they do not necessarily have the responsibility of recovering from errors.

Question 10

Sometimes called computer room networks,__________ networks are used to interconnect large systems such as mainframes,supercomputers,and mass storage devices that typically need to transfer large volumes of data between one another.

Accepted Answer

The answer of Sometimes called computer room networks,__________ networks are...

Question 11

With __________,the waves are guided along a solid medium,such as copper twisted pair,copper coaxial cable,or optical fiber.

Accepted Answer

The answer of With __________,the waves are guided along a...

Question 12

The kinds of data processing equipment to be supported in a typical business organization can be grouped into three categories: personal computers and workstations,server farms,and _________.

Accepted Answer

The answer of The kinds of data processing equipment to...

Question 13

The atmosphere and outer space are examples of unguided media,which provide a means of transmitting electromagnetic signals but do not guide them; this form of transmission is usually referred to as ___________.

Accepted Answer

The answer of The atmosphere and outer space are examples...

Question 14

The lowest layer of the IEEE 802 reference model corresponds to the ____________ of the OSI model and includes such functions as encoding / decoding of signals and bit transmission / reception.

Accepted Answer

The physical layer of the IEEE 802 reference model corresponds to the physical layer of the OSI model, which is responsible for the physical transmission of data through the network medium. This includes functions such as encoding/decoding of signals, bit transmission/reception, physical addressing, and medium access control. Therefore, the correct choice is A) physical layer.

Question 15

When examining a MAC frame of data,starting with the first bit,which of the following describes the order of the various headers found in the frame?

Accepted Answer

The correct order of headers in a MAC frame, starting from the first bit, is MAC (Media Access Control), LLC (Logical Link Control), IP (Internet Protocol), and TCP (Transmission Control Protocol). This sequence reflects the encapsulation process where the data payload is wrapped with protocol information at each layer of the OSI model, starting from the data link layer (MAC and LLC) up to the transport layer (TCP).

Question 16

Twisted pair comes in two varieties: unshielded and _________.

Accepted Answer

The answer of Twisted pair comes in two varieties: unshielded...

Question 17

Cables and associated connecting hardware whose transmission characteristics are specified up to _________ fall into Category 5 UTP cabling.

Accepted Answer

Category 5 UTP cabling has transmission characteristics specified up to 100 MHz.

Question 18

A factory ________ should be: of high capacity,able to handle a variety of data traffic,capable of having a large geographic footprint,highly reliable,and able to specify and control transmission delays.

Accepted Answer

The answer of A factory ________ should be: of high...

Question 19

The function of a __________ protocol is to control access to the transmission medium and to provide an orderly and efficient use of that capacity.

Accepted Answer

The MAC (Media Access Control) protocol is responsible for controlling access to the transmission medium (such as a network cable or wireless channel) and ensuring that it is used in an organized and efficient manner. It governs how devices contend for access to the medium and how they transmit their data. The LLC (Logical Link Control) protocol is a higher-level protocol that provides error control and flow control services, but does not directly manage access to the medium. SAN (Storage Area Network) and MAN (Metropolitan Area Network) are types of networking architectures and not specific protocols.

Question 20

Two different types of light source are used in fiber optic systems: LED and

Accepted Answer

The answer of Two different types of light source are...

Quiz 12: Lan Architecture and Infrastructure