Cnna Final Exam Review Edition 7 Chapter 1

Front 1

ADDS

Back 1

TheActive Directory service that manages the process that allows a userto sign on to a network from any computer on the network and getaccess to the resources that Active Directory allows

Front 2

Bits

Back 2

Asingle pulse in the digital encoding system that can have one of onlytwo values: 0 or 1.

Front 3

Catastrophicfailure

Back 3

Afailure that destroys a component beyond use.

Front 4

Convergence

Back 4

Theuse of data networks to carry voice, video, and other communicationsservices in addition to data

Front 5

Decapsulation

Back 5

Removinga header or trailer from a lower OSI layer

Front 6

Failopen

Back 6

Systemallows access during the failure

Front 7

Fragmentation

Back 7

Alongthe way, if a Network layer protocol is aware that a packet is largerthan the maximum size for its network, it will divide the packet intosmaller packets

Front 8

Globalaccount

Back 8

Eachuser on the network has his own domain-level account called a globalaccount, also called a global username or network ID, which isassigned by the network administrator and is kept in ActiveDirectory.

Front 9

HTTPS

Back 9

WhenHTTP is layered on top of an encryption protocol, such as SSL(Secure Sockets Layer)or TLS(Transport Layer Security),the result is HTTPS(HTTP Secure),which gives a secure transmission.

Front 10

Hub

Back 10

Ahub is an inefficient and outdated networking device that has beenreplaced by switches. A hub accepted signals from a transmitting nodeand repeated those signals to all other connected nodes in abroadcast fashion. On Ethernet networks, hubs once served as thecentral connection point for a star topology. Also, hubs onlysupported half-duplex transmission.

Front 11

IMAP4

Back 11

anemail protocol which is sometimes used instead of the POP3 protocol.With IMAP4 email is stored on the mail server and can be accessedfrom any IMAP4 email client on the network. With POP3 email isdownloaded to the mail client where it is accessed.

Front 12

Listsome application layer protocols that you know

Back 12

Telnet,FTP, SMTP. DNS.SNMP, SMB

Front 13

MSDS

Back 13

MaterialSafety Data Sheet requires that the chemical manufacturer,distributor, or importer provide MSDS’s for each hazardous chemicalto downstream users to communicate information on these hazards.

Front 14

MulticastDistribution

Back 14

Incomputer networking, multicast (one-to-many or many-to-manydistribution) is group communication where information is addressedto a group of destination computers simultaneously.

Front 15

Name the OSIModel Layers

Back 15

Applications

Presentation

Session

Transport

Network

Data-Link

Physical

Front 16

PAN

Back 16

acomputer network used for data transmission among devices such ascomputers, telephones and personal digital assistants

Front 17

Payload

Back 17

Datathat is passed between applications or utility programs and theoperating system, and includes control information.

Front 18

Peer-to-peernetworks

Back 18

Anetwork in which every computer can communicate directly with everyother computer. By default, no computer on a peer-to-peer network hasmore authority than another. However, each computer can be configuredto share only some of its resources and keep other resourcesinaccessible to other nodes on the network.

Front 19

Plenum

Back 19

Thearea above the ceiling tile or below the subfloor in a building

Front 20

PDU

Back 20

(protocoldata unit) A unit of data at any layer of the OSI Model.

Front 21

What is the reason for the OSI model

Back 21

Amodel for understanding and developing computer-to-computercommunication developed in the 1980s by ISO. It divides networkingfunctions among seven layers: Physical, Data Link, Network,Transport, Session, Presentation, and Application.

Front 22

RDP

Back 22

(RemoteDesktop Protocol) An Application layer protocol that uses TCP/IP totransmit graphics and text quickly over a remote client-hostconnection. RDP also carries session, licensing, and encryptioninformation

Front 23

Repeater

Back 23

Adevice used to regenerate a digital signal in its original form.Repeaters operate at the Physical layer of the OSI model

Front 24

Router

Back 24

ALayer 3 device that uses logical addressing information to directdata between two or more networks and can help find the best path fortraffic to get from one network to another.

Front 25

SSH

Back 25

(SecureShell) A connection utility that provides authentication andencryption. With SSH, you can securely log on to a host, executecommands on that host, and copy files to or from that host. SSHencrypts data exchanged throughout the session

Front 26

SSL

Back 26

(SecureSockets Layer) A method of encrypting TCP/IP transmissions—includingWeb pages and data entered into Web forms—en route between theclient and server using public key encryption technology.

Front 27

Switch

Back 27

Aconnectivity device that logically subdivides a network into smaller,individual collision domains. A switch operates at the Data Linklayer of the OSI model and can interpret MAC address information todetermine whether to filter (discard) or forward packets it receives.

Front 28

TCP/IPSuite Layers

Back 28

HTTP(S),SMTP, FTP, POP, IMAP, FTP(S), TCP, UDP, IP, ICMP, ARP

Front 29

TCPvs UDP

Back 29

TCPis guaranteed delivery, UDP is best effort

Front 30

Telnet

Back 30

Aterminal emulation protocol used to log on to remote hosts using theTCP/IP protocol

Front 31

Topologytypes

Back 31

point-to-point,bus, star, ring, mesh, tree and hybrid.

Front 32

TLS

Back 32

(TransportLayer Security) A version of SSL standardized by the IETF (InternetEngineering Task Force). TLS uses slightly different encryptionalgorithms than SSL, but otherwise is very similar to the most recentversion of SSL

Front 33

Upsetfailure

Back 33

Damagethat can shorten the life of a component and/or cause intermittenterrors.

Front 34

Whatis the role of the frame?

Back 34

Theentire Data Link layer message, including the header, payload, andtrailer