Ciscoii Chap1

Front 1

Collaboration support of a converged network can include features such as what?

Back 1

Call control
Voice messaging
Mobility
Automated attendant

Front 2

T or F, a major benefit of the converged network is that there is just one physical network to manage which results in substantial savings compared with the management of separate networks for voice, video and data.

Back 2

T

Front 3

A ___________ design is required to allow the management of a complex converged network.

Back 3

structured

Front 4

Borderless switched networks are built upon what prinicples?

Back 4

Hierarchical
Modularity
Resiliency
Flexibility

Front 5

Facilitates understanding the role of each device at every tier, simplifies deployment, operation, and management, and reduces fault domains at every tier

Back 5

Hierarchiacal

Front 6

Allows seamless network expansion and integrated service enablement on an on-demand basis

Back 6

Modularity

Front 7

Satisfies user expectations for keeping the network always on

Back 7

Resiliency

Front 8

Allows intelligent traffic load sharing by using all network resources

Back 8

Flexibility

Front 9

What are the 3 critical layers within the 3 tiered LAN design?

Back 9

Access
Distribution
Core

Front 10

What layer represents the network edge, where traffic enters or exits the campus network?

Back 10

Access Layer

Front 11

The primary function of an access layer switch is to provide ________ _________ to the user.

Back 11

network access

Front 12

Access layer switches connect to ____________ layer switches.

Back 12

distribution

Front 13

Distribution layer switches implement _________, ____________, and ____________

Back 13

routing
quality of service
security

Front 14

Building intelligence into access layer switches allows applications to operate on the network more __________ and ____________

Back 14

efficiently
securely

Front 15

The distribution layer interfaces between the ________ layer and the ___________ layer.

Back 15

access
core

Front 16

The distribution layer provides what functions?

Back 16

*Aggregating wiring closet networks
*Aggregating layer 2 broadcast domains and layer 3 routing boundaries
*providing intelligent switching, routing, and network access policy functions
*Provide high availability through redundancy
*Provide differentiated services to applications

Front 17

What layer is considered the network backbone?

Back 17

core layer

Front 18

The primary purpose of the core layer is to provide _____________ isolation, and ___________ backbone connectivity.

Back 18

fault
high-speed

Front 19

A switched LAN allows more flexibility, traffic management, and additional features such as ____________, ________________, ______________, and ________________

Back 19

*Quality of service
*security
*Wireless support
*New technologies like IP telephony and mobility services

Front 20

What 2 criteria does a switch forward traffic upon?

Back 20

Ingress port
Destination address

Front 21

The term ____________ is used to describe where a frame enters the device on a port

Back 21

ingress

Front 22

The only intelligence of the LAN switch is its ability to use its ________ to forward traffic based on the ingress port and the destination address of a message.

Back 22

table

Front 23

__________ is a special type of memory used in high-speed searching applications.

Back 23

CAM (Content Addressable Memory)

Front 24

A switch populates the MAC address table based on the ____________ MAC addresses

Back 24

Source

Front 25

When a switch recieves an incoming frame with a destination MAC address not found in the table, the switch forwards the frame out _________ ports except the ingress port.

Back 25

all (aka flooding)

Front 26

An entry for a MAC address is typically kept in the table for _________ minutes.

Back 26

5

Front 27

__________________ reduces the packet-handling time within the device and allows the device to handle an increased number of ports without degrading performance.

Back 27

ASIC's (application-specific-integrated circuits)

Front 28

____________________, makes a forwarding decision on a frame after it has received the entrire frame and then checked the frame for errors.

Back 28

store-and-forward

Front 29

_________________, begins the forwarding process after the destination MAC address of an incoming frame and the egress port has been determined.

Back 29

cut-through switching

Front 30

The 2 characteristics that distinguish store-and-forward switching from cut through are ____________ and _________________.

Back 30

error checking
automatic buffering

Front 31

The ____________ is an error checking process that helps to ensure that the frame is free of physical and data-link errors.

Back 31

FCS

Front 32

With any mismatch in speeds between the ingress and egress ports, the switch stores the entire frame in a ____________. This is the concept of automatic buffering.

Back 32

buffer

Front 33

A store-and-forward switch ___________ frames that do not pass the FCS check.

Back 33

drops

Front 34

A characteristic of cut-through switches compared to store-and-forward, is that cut-through does not ___________ invalid frames.

Back 34

drop

Front 35

_______________ switching is a modified form of cut-through switching in which the switch waits for the collision window (64 bytes) to pass before forwarding the frame.

Back 35

Fragment Free

Front 36

Fragment free switching provides better ___________ than cut-through.

Back 36

error checking