Systems and Networks Flashcards Preview

Second Class Exam > Systems and Networks > Flashcards

Flashcards in Systems and Networks Deck (46)
Loading flashcards...
1

• Host/Client

A computer or device that is connected to the internet/network.

2

• Application Server

A server that holds applications

3

• Hub

A networking device that forwards packets to all segments.

4

• Switch

A networking device that has the ability to choose which segments it wants to forward the packet(s) to.

5

• Router

Networking device that acts as the default gateway.

6

• WAP

Wireless Access Point, device that broadcast a wired network using WI-FI, Bluetooth, etc.

7

• Proxy Server

Server that requests resources from other servers for a user to receive.

8

• Firewall

A device, set of devices and/or software that permits or denies off going/incoming network traffic.

9

• VPN Concentrator

An encrypted tunnel between hosts

10

• Back-up

Copy of data that is used to restore original data during a data loss event.

11

• Repeater

An electronic device that receives a signal and re-amplifies it so the signal can cover longer distances

12

• Access

This layer includes hubs and switches. It ensures packets are delivered to end user computer

13

• Distribution

This layer includes LAN-based routers and layer 3 switches. It ensures that packets are properly routed in the network

14

• Core

This layer includes high-end switches and backbones. It is concerned with speed and reliable delivery of packets (information).

15

• Topologies

are the physical or logical design of a network

16

• LAN

A computer network covering a small area such as a home or office.

17

• MAN

The largest type of network that spans cities and/or campuses. Example of this is the internet.

18

• GAN

Network that supports mobile communications, wireless LANS, etc via satellite.

19

• OSI

Is a way of sub-dividing a communications system into smaller parts called layers.

20

• TCP/IP

Is a way of sub-dividing a communications system into smaller parts called layers

21

IPv4 VS IPv6

Both are connection-less protocol that allow you to access a network(s). The difference is IPv4 is 32-bit while IPv6 is 128-bit.

22

• NMCI

Serves as the primary network for shore U.S. users.

23

• ONENET

Serves as the primary network for OCONUS shore users

24

• IT21

Serves as the primary network for all afloat commands.

25

• INFOCON

A defense system based on the status of information systems used to defend against network attacks.

26

• CNO

It is the actions taken via computer networks to protect, monitor, analyze and respond to network attacks that would compromise information systems.

27

• NCDOC

Oversees and monitors networks.

28

• FLTNOC

– Provides IP services to the fleet. (There are 4: PRNOC,UARNOC, ECRNOC and IORNOC.)

29

• NCTS

Provides secure, reliable, and timely services to U.S. commands.

30

• TBMCS

The system is used to track airborne resources.