Networking Essentials Chapter 3

When a computer assembles a frame to be sent over the network, what is the maximum size of an Ethernet frame?

1518 bytes

Reference Model

A layered model that describes the functions that must occur at the various layers, but not the specific protocol that must perform the function

Protocol Model

A layered model that illustrates how different related protocols interact within a protocol suite

OSI Model

A reference model that illustrates what a functionality is necessary in order for network communications to occur

What component is the notation BASE in the 100Base-T

Baseband transmission

What address type does a switch use to make selective forwarding decisions?

Destination MAC

What makes it possible for e-mail to be sent and received on a wide variety of devices, including cell phones, PDAs, laptops, and desktop computer?

E-mail software is written using standards and protocols that ensure compatibility

Which term is used to refer to a layer 2 PDU?

Frame

What is the purpose of the core layer in the Cisco hierarchical network design model?

High-speed backbone switching

What type of information is contained in an APR table?

IP address to MAC address mappings

What organization develops and maintains Ethernet and wireless standards?

Institute of electrical and electronic engineers (IEEE)

What address is a physical address assigned to every Ethernet network interface?

Media access control (MAC)

Which three elements do all communication methods have in common?

Message destination, Message source, Transmission medium

What model breaks network communications down into seven functional layers?

Open systems interconnection (OSI)

Which two layers of the OSI model specify protocols that are associated with ethernet standards? (Two Answers)

Physical Layer and Network Layer

Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work?

Reference model

What role does a router play on a network?

Selecting the path to destination networks

Which three layers of the OSI model make up the application layer of the TCP/IP model? (three answers)

Session, presentation, and application

Which term refers to the set of rules that define how a network operates?

Standard

Message Source

The device that creates and sends the message on the network

Message Destination

The intended recipient of the message on the network

Message Channel

The media over which the message is transmitted from source to destination

TCP/IP Model

The model that shows the interoperation of the protocols that govern internet communications

Encapsulation

The process of adding additional information to the pieces of data that make up the message in order to ensure that it is delivered to the correct application on the correct destination host

Encoding

The process of translating the bits of data into a pattern of sounds, light waves, or electrical impulses for transmission across the network

What component is the notation T in the 100Base-T

Twisted-pair cable

What component is the notation 100 in the 100Base-T

speed in Mbps