Standards and Concepts

Question 1

Layers of the TCP/ICP Model

Answer 1

Application, Transport, Internet, Link

Question 2

Layers of OSI Model

Answer 2

(Please Do Not Throw Sausage Pizza Away)
Physical
Data Link
Network
Transport
Session
Presentation
Application

Question 3

WLAN

Answer 3

Wireless Local Area Network
Pro: Flexibility, Wireless through access point, Channels selected to minimize interference

Question 4

PAN

Answer 4

Personal Area Network
(Limited Distance, Connects 2 devices like bluetooth or controller and tv)

Question 5

CAN

Answer 5

Campus Area Network
(Interconnects nearby buildings, easy to add redundancy)

Question 6

MAN

Answer 6

Metropolitan Area Network
(High Speed, uses different wavelengths to differentiate customers)

Question 7

WAN

Answer 7

Wide Area Network
(Slower than LAN, Solid connection but dashed if needed, Sites connect to service provider)

Question 8

LAN

Answer 8

Local Area Network
(Highspeed, Typically located in an office)

Question 9

Iperf

Answer 9

Measures throughput between two network devices

Question 10

Delay

Answer 10

A component of latency that measures the amount of time for a specific transmission or processing task to occur

Question 11

Latency

Answer 11

The amount of time required for a packet to travel between 2 points in the network (Total of delays)

Question 12

Tcp Vs Udp

Answer 12

TCP: Transmission control protocol; Reliable, more overhead and delay
UDP: User datagram protocol; unreliable less overhead and delay

Question 13

Saas

Answer 13

Software as a service; Provider offers a complete application like for example google docs

Question 14

Paas

Answer 14

Platform as a service; Cloud provider offers infrastructure and configures vm and hardware

Question 15

Iaas

Answer 15

Infrastructure as a service; Cloud provider offers infrastructure like network and storage. Customers pay for what they use

Question 16

LAN Media

Answer 16

Transmission of data through cabling or wires

Question 17

WAN Media

Answer 17

Large area of info not tied to a single location; can be used for data centers or storage for offices

Question 18

NTP

Answer 18

Network time protocol; Syncronizes clocks of computers and other devices of a network

Question 19

ICMP

Answer 19

Internet Control Message Protocol; Sends control and error reports

Question 20

DNS

Answer 20

Domain Name System; Resolves internet names to IP addresses

Question 21

DHCP

Answer 21

Dynamic Host Configuration Protocol; Used to assign IP addresses and other configurations to devices on a network

Question 22

HTTPS

Answer 22

Extension of http that adds a layer of security

Question 23

HTTP

Answer 23

Hypertext Transfer Protocol; Used by web browsers to request web pages and web servers to transfer the files that make up the web pages

Question 24

TFTP

Answer 24

Trivial File Transfer Protocol; Transfers files over a network

Question 25

SFTP

Answer 25

A network protocol used to transfer files between a client and a server over a secure connection

Question 26

FTP

Answer 26

File Transfer Protocol; Used for interactive file transfer between systems

Question 27

DSL

Answer 27

Digital Subscriber Line; Provides high bandwidth connection to internet, requires high speed modem

Question 28

NFC

Answer 28

Near Field Communication; enables data to be exchanged in close proximity (Google Pay)

Question 29

Wireless Media

Answer 29

The transmission of data without use of physical cables/wires

Question 30

Network Media

Answer 30

Describes the cable and wires used in wired networks

Question 31

Ipv4

Answer 31

Assigned to NIC on a device, 32 bits in length, 4 bytes

Question 32

Subnet Mask

Answer 32

Used to identify the network the host is on

Question 33

Unicast packet

Answer 33

A packet where the destination IP address is destined for a single device for one to one communication

Question 34

Broadcast Transmission

Answer 34

A device sending a packet to all devices on a network, one to all communication. Routers do not forward broadcasts

Question 35

Broadcast Domain

Answer 35

All hosts on the same network segment

Question 36

Multicast Transmission

Answer 36

Sends a packet to selected group of devices (224.0.0.0 to 239.255.255.255)

Question 37

Address Resolution Protocol

Answer 37

Sends a broadcast to known ipv4 address on local network to discover the associated mac address

Question 38

Network Infrastructure

Answer 38

The platform that supports the network; router, laptop, network media