Networks

Question 1

Topology

Answer 1

Architecture used to interconnect networking equipment

Question 2

Deterministic Network

Answer 2

Access to the network is provided at fixed time intervals.

Question 3

Logical Topology

Answer 3

How end user views communications.

Question 4

Physical Topology

Answer 4

Actual hardware topology

Question 5

Multiport Repeater

Answer 5

Hub

Receives signal from a device and broadcasts it to all devices on network regardless of target.

Question 6

Switch

Answer 6

Receives signal from a device and delivers it to the target device.

Question 7

OSI

Answer 7

Open Systems Inter-connectivity Model

Question 8

MAC

Answer 8

Media Access Control
Physical address of device.
48 bit hexadecimal number.
AKA Ethernet / hardware / adapter address

Question 9

Data Encapsulation

Answer 9

Information added as data moves down the model.

Question 10

Data De-encapsulation

Answer 10

Information removed as data moves up the model

Question 11

Networking Protocol used in most modern computer networks

Answer 11

Ethernet

Question 12

CSMA/CD

Answer 12

Carrier Sense Multiple Access with Collision Detection
Protocol for local area networks
Before a computer talks on the network it listens for traffic (CS), any computer on LAN can access network (MA), system can detect collisions (CD).

Question 13

OUI

Answer 13

Organizationally Unique Identifier

First 6 digits of MAC indicating vendor

Question 14

IANA

Answer 14

Internet Assigned Numbers Authority

Agency that assigns IP addresses to computer networks

Question 15

Network Number

Answer 15

Portion of IP address defining which network is the source / destination

Question 16

Host Number

Answer 16

Portion of IP address defining which device is the source / destination

Question 17

Wired Network

Answer 17

Faster data transfer speeds, inexpensive setup, not susceptible to outside interference.
Connections require specialized tools, cable installation can be labor intensive / expensive

Question 18

Wireless Network

Answer 18

Mobile users, simple installation, no cables.

Security issues, slower data transfer speeds.

Question 19

Range Extender

Answer 19

Relays wireless signals from an access point into areas with a weak signal

Question 20

NAT

Answer 20

Network Address Translation
ISP issues routable public IP address to router. Devices using router have internal addresses only but connect to outside network via public IP address.

Question 21

Link Integrity Test

Answer 21

Protocol used to verify communication link between two Ethernet devices is established

Question 22

SPI

Answer 22

Stateful Packet Inspection

Firewall that inspects incoming data packets to ensure they match outgoing requests

Question 23

Uplink Port

Answer 23

Allows connection of a switch to another switch without using a crossover cable

Question 24

Frame

Answer 24

Provides grouping of information for transmission

Question 25

Network Adapters

Answer 25

Typically a NIC (network interface card)

Question 26

Router

Answer 26

Connects two or more networks using a single connection to ISP

Question 27

Access Point

Answer 27

Interconnects wireless devices and provides a connection to the wired LAN

Question 28

Wireless Router

Answer 28

Combines router, switch, WAP.

Uses RF

Question 29

Cable Modem

Answer 29

Makes broadband network connection from home network to ISP using a cable connection.

Question 30

Broadband modem/gateway

Answer 30

High-speed data access via cable or DSL connection.

Combines modem and router.

Question 31

DSL Modem

Answer 31

Broadband network connection from home network to ISP via telephone line.