Network

Question 1

DHCP ( Dynamic Host Configuration Protocol

Answer 1

Automatically assigns IP Address to clients

Question 2

DNS ( Domain Name System)

Answer 2

Translates Internet domain and host names to IP addresses

Question 3

TCP (Transmission Control Protocol)

Answer 3

Provides connection-oriented acknowledged communication

Question 4

UDP (User Datagram Protocol)

Answer 4

Provides Connectionless, Unacknowledged communication

Question 5

NAT ( Network Address Translation)

Answer 5

Security device enable you to use whatever IP addessses you want on your internal network, while conforming to the rules of the lager network to which your systems are connected. Provides security by masking internal addresses and hiding nodes

Question 6

PAT( Port Address translation

Answer 6

security device enable public access to specific services on specific ports on internal servers, while blocking access to other services

Question 7

DMZ ( Demilitarized Zone)

Answer 7

physical or logical subnetwork that contains and exposes an organization’s external- facing services to a larger and untrusted network, usually the internet. It adds additional layers of security to an organized LAN

Question 8

Bus Topology

Answer 8

The information is passed along each node until it arrives at its proper destination

Question 9

Ring

Answer 9

The information passes from one node to the next until it finds where it is supposed to be

Question 10

Star

Answer 10

Each node is connected to the server

Question 11

Mesh

Answer 11

Expensive to impliment has redundant connections

mostly used in wireless enviroments

Question 12

Point -to-point

Answer 12

Direct connect

Question 13

Network layers

Answer 13

1. Physical - Hubs
2. Data link - Bridge or MAC
3. Network - Router
4. Transport - helps the flow of traffic
5. Session - verification level ( are you there)
6. Presentation - images
7. Application - user interface