Common Terminology

Question 1

ports 0 through 1,023

Answer 1

non-ephemeral ports / server only

Question 2

ports 1024 through 65,535

Answer 2

ephemeral ports / determined in real time

Question 3

ports used for communication or security

Answer 3

communication

Question 4

TCP/UDP ports

Answer 4

TCP ports are different than UDP ports so no conflict

Question 5

source port

Answer 5

used by the client to receive data from server

Question 6

destination port

Answer 6

used by server to receive data from client

Question 7

DNS lookup utility

Answer 7

DIG

Question 8

granting an IP address

Answer 8

lease

Question 9

time-to-live

Answer 9

max number of hops a packet can make before discarded

Question 10

hop

Answer 10

one portion of the path between source and destination

Question 11

Telnet

Answer 11

log into devices remotely, not encrypted

Question 12

SSH

Answer 12

(Secure Shell) log into devices remotely, encrypted

Question 13

DNS

Answer 13

(Domain Name System) convert the names in a browser to an IP address

Question 14

SMTP

Answer 14

(Simple Mail Transfer Protocol) server to server email transfer

Question 15

IMAP4

Answer 15

(Internet Message Access Protocol) includes management of email inbox from multiple clients

Question 16

POP3

Answer 16

(Post Office Protocol) basic transfer functionality for mail

Question 17

FTP

Answer 17

(File Transfer Protocol) transfer files between systems and has login authentication, no encryption

Question 18

TFTP

Answer 18

(Trivial File Transfer Protocol) very simple file transfer application, no login authentication, no encryption

Question 19

SFTP

Answer 19

(Secure File Transfer Protocol) uses SSH and can resume interrupted transfers, remote file removal and directory listings, encrypted

Question 20

DHCP

Answer 20

(Dynamic Host Configuration Protocol) automated configuration of an IP address, subnet mask, and other options. Uses DHCP server to lease IP addresses from a pool.

Question 21

DHCP Reservation

Answer 21

addresses assigned to a particular MAC address

Question 22

MAC

Answer 22

Media Access Control

Question 23

HTTP

Answer 23

(Hyper Text Transfer Protocol) web server communication

Question 24

HTTPS

Answer 24

(Hyper Text Transfer Protocol Secure) web server communication with encryption

Question 25

SNMP

Answer 25

(Simple Network Management Protocol) gather statistics from network devices

Question 26

RDP

Answer 26

(Remote Desktop Protocol) share a desktop from a remote location

Question 27

SIP

Answer 27

(Session Initiaition Protocol) setup and manage voice over IP sessions, extends voice communication and file transfer

Question 28

H.323

Answer 28

ITU Telecommunication H.32x protocol series, setup, and manage VoIP sessions and extends voice communication

Question 29

SMB

Answer 29

(Server Message Block) also called Common Internet File System, direct SMB over TCP

Question 30

LDAP

Answer 30

(Lightweight Directory Access Protocol) store and retrieve information in a network directly

Question 31

LDAPS

Answer 31

(Lightweight Directory Access Protocol Secure) - non-standard implementation of LDAP over SSL

Question 32

Bridging

Answer 32

connection between two MAC addresses

Question 33

IP Fragmentation

Answer 33

breaks up packets into smaller pieces

Question 34

IP

Answer 34

Internet Protocol

Question 35

TCP

Answer 35

Transmission Control Protocol

Question 36

UDP

Answer 36

User Datagram Protocol

Question 37

Half-duplex

Answer 37

cannot send/recieve data simultaneously

Question 38

Half-duplex examples

Answer 38

LAN hubs

Question 39

A sensor that monitors incoming traffic before it is allowed into the network.

Answer 39

Intrusion Prevention System

Question 40

A sensor that receives a copy of network traffic in the middle of the network.

Answer 40

Intrusion Detection System

Question 41

A device that uses a set of rules to determine what traffic to allow or deny between different areas of a network.

Answer 41

Firewall

Question 42

A portion of a network that should be accessible by external devices.

Answer 42

Demilitarized Zone

Question 43

Locally stores content retrieved from a remote network and sends content to local devices that are requesting it.

Answer 43

Cache Engine

Question 44

Network appliance that makes storage resources available to network clients

Answer 44

Network Attached Storage

Question 45

A device that inspects network traffic using a set of rules for return traffic before allowing the connection

Answer 45

Stateful Firewall

Question 46

A device that monitors packets and applies a set of rules before allowing or denying them to be sent through.

Answer 46

Packet Filter

Question 47

Device inspects application layer traffic using a set of rules for return traffic before allowing the connection.

Answer 47

Application Layer Firewall

Question 48

Wireless can be administered individually

Answer 48

Autonomous Access Point

Question 49

Allows wireless devices on the data layer to communicate with one another without a network layer.

Answer 49

Wireless Ad Hoc Network

Question 50

Wireless Access Point can be managed by a WLAN controller

Answer 50

Lightweight Access Point

Question 51

Used to control lightweight access points using Lightweight access point protocol

Answer 51

Wireless Lan Controller

Question 52

Used by a wireless LAN controller to communicate with a lightweight access point

Answer 52

Lightweight Access Point Protocol