C Annex Test 4

Front 1

The Data Distribution System - Modular (DDS-M)

Back 1

Provides the data communications backbone for tactical data networks. Provides WAN connectivity, LAN connectivity, and contains a server suite to provide data services to tactical users. An IP-based data networking capability for communications support to the varying organizations that are organic to a Marine Air Ground Task Force (MAGTF).

Front 2

Autonomous System (AS)

Back 2

A group of routers and their data networks that share a common routing policy and administration.

Front 3

Interior Gateway Protocols (IGP)

Back 3

Used to enable communications between different networks, they establish the common routing policy that defines the AS.

Front 4

Exterior Gateway Protocols (EGP)

Back 4

Used to connect together different autonomous systems and ensure traffic is able to enter and exit the AS.

Front 5

Static Routing

Back 5

Configured by the network administrator, and show the destination network, its subnet mask, and its next hop. More secure, most resource efficient, will always override a dynamic route.

Front 6

Dynamic Routing

Back 6

Ease the workload of the network administrator because they automatically learn about other networks and fill in the routing table. Find several paths to the destination and chose the best one to send traffic down.

Front 7

Convergence

Back 7

The process of developing the topology of a network.

Front 8

The Factors Affecting Convergence

Back 8

1. Occurs anytime any change is made to the network like adding networks, adding or removing a router, or the loss of communication with a router.

2. Whenever the topology of the network changes, routers must adjust for the changes and alter their understanding of the topology of the network in order to ensure that packets are routed down the right paths.

Front 9

Enhanced Distance Vector Routing Protocol

Back 9

Combine the best parts of Link-state and distance vector protocols. (DUAL - Bandwidth, Delay, Reliability, Load)

Front 10

Most Common Enhanced Distance Vector Protocol employed within the United States Marine Corps Packet Switching Networks (PSNs)

Back 10

Enhanced Interior Gateway Routing Protocol (EIGRP)

Front 11

The Most Common Exterior Gateway Protocol (EGP) used to connect United States Marine Corps Packet Switching Networks (PSNs) to other Autonomous Systems (AS)/Routing Domains within the Defense Information Systems Network (DISN)

Back 11

Border Gateway Protocol 4.0 (BGP)

Front 12

Virtual Local Area Networks (VLANs)

Back 12

Used to separate the one layer 2 broadcast domain into multiple networks based upon the desires of the data planner.

Front 13

VLAN Database

Back 13

The VLAN information you create on the VLAN server is stored here. The central repository for VLAN information for that VTP Domain. It is stored in the flash memory of the switch.

Front 14

VLAN Trunking Protocol (VTP)

Back 14

A management protocol that groups switches into a VTP domain.

Front 15

VLAN Domain

Back 15

A collection of switches that fall under the same VTP server and share a common VLAN database.

Front 16

VLAN Trunk

Back 16

A connection between switches that is programmed to allow VLAN database information and multiple virtual local area networks to traverse that connection; it utilizes VTP in order to do this.

Front 17

VLAN Tagging Technologies

Back 17

Interswitch Link and 802.1Q

Front 18

Inter-VLAN Routing

Back 18

Only a Layer 3 Device, router or Layer 3 capable switch, can route traffic between 2 VLANs. The process of routing data between VLANs within a switched LAN is the purpose of Inter-VLAN routing.

Front 19

The preferred intermediary device used to perform Inter-VLAN Routing within the USMC PSN

Back 19

Layer 3 switches

Front 20

Spanning Tree Protocol (STP)

Back 20

Was developed to prevent loops from forming on the LAN. Because there are no TTL indicators on the Layer 2 network, switching loops called broadcast storms can easily occur.

Front 21

The advantages of Cisco Etherchannel Technology

Back 21

1. Will balance the load accross all of the connections in the group to increase the available bandwidth.

2. Significantly increases your Bandwidth between two devices.

3. Compatible with UTP, STP, SMF, and MMF.

4. Fault Tolerance: if 1 line out of a group of 8 is cut, Etherchannel will automatically compensate.

5. For 8 ports; 100 Mbps = 800, 1 Gbps = 8.

Front 22

Core Layer

Back 22

1. Contains your largest and most capable Layer 3 Switches.

2. To route traffic as fast as possible around the network.

3. Located in the TECHCON or key C2 locations.

4. Usually directly connected to routers.

5. Servers and important network services are generated here.

Front 23

Distribution Layer

Back 23

1. Concerned with how the services that are generated at the Core Layer are pushed out to or sent to the rest of the LAN.

2. Smaller Layer 3 switches will be employed at this layer.

3. The switches at this layer will be the VTP server switches for the lowest layer.

4. Redundancy and scalability is the purpose of the Distribution Layer.

5. Multiple connections and trunks are common.

6. Isolated from the rest of the network by L3 connections.

Front 24

Access Layer

Back 24

1. Where users access the network.

2. User switches are connected via Layer 2 trunks to the Distribution Layer switches.

3. Configurations on switches are very simple and straight forward and the goal is simply to provide access to the user.

4. Port density and placement are main concerns.

Front 25

The benefits of Layer 3 Switching

Back 25

1. Protects and isolates your users, servers, and COC from anyone else.

Front 26

Tunnel

Back 26

A virtual path across a network that delivers packets that are encapsulated and possibly encrypted to a designated distant end. Essentially the process of encapsulating one protocol inside another.

Front 27

Dynamic Multipoint Virtual Private Network (DMVPN)

Back 27

1. A Cisco IOS Software solution for building IPSec VPNs in an easy and scalable manner.

2. Uses a centralized architecture to provide easier implementation and management for deployments of diverse user communities, including mobile workers, telecommuters, and extranet users in the civilian world.

3. Used in the Marine Corps specifically in the deployment of VSATs. Prevents the need for pre-configured static tunnels to add a new spoke.

4. Allows nodes to communicate directly with each other instead of through the hub.

Front 28

Black Core Routing

Back 28

A networking Scheme for the interconnection of core network components where all data remains IPSec encrypted (black traffic) as it is transported across the core.

Front 29

Scale of employment for the KG-175 TACLANE

Back 29

1. Individual user or for enclaves of users at the same security level.

2. Low-cost, type 1, key-agile, in-line network encryptor for deployment in DOD tactical and strategic networks in classified applications up to TOP SECRET.

Front 30

Maximum data rate of the KG-175D TACLANE-Micro

Back 30

200 Mbps

Front 31

Two types of cryptographic vectors utilized in the KG-175 TACLANE

Back 31

1. Pre-Placed Key (PPK)

2. Firefly