10. Networking Basics

Question 1

What provides an ethernet connection to the network and is what NIC stands for?

Answer 1

Network Interface Card

Question 2

Between which / how many ports does a hub have?

Answer 2

4 ~ 48

Question 3

What are smart hubs that remember the ports connected to them, and can have multiple people talking at the same time?

Answer 3

Switches

Question 4

What is the difference between an Unmanaged and Managed switch?

Answer 4

Whether it requires a configuration to perform its functions

Question 5

What device allows wireless devices to connect to a wired network?

Answer 5

Wire Access Point

Question 6

What is used to connect networks together?

Answer 6

Router

Question 7

What scans and blocks traffic that enters or leaves a network, and unifiied threat management (UTM) contains such features?

Answer 7

Firewall

Question 8

What device allows cable network jacks from a wall into a central area?

Answer 8

Patch panel

Question 9

What supplies electrical power from a switch port over an ordinary data cable to a power device?

Answer 9

Power over Ethernet (PoE)

Question 10

Waht plugs into a wall outlet to get power?

Answer 10

Power injector

Question 11

Waht device translates coaxial cable signals into radio frequency waves?

Answer 11

Cable modem

Question 12

What device translates coaxial cable signals into phone lines?

Answer 12

Digital Subscriber Line (DSL)

Question 13

What terminates a fiber connection?

Answer 13

Optical Network Terminal (ONT)

Question 14

What refers to a way of virtualizing network hardware?

Answer 14

Software Defined Networking (SDN)

Question 15

What is the smalled type of network and covers the least amount of area?

Answer 15

Personal Area Network (PAN)

Question 16

What network type connects components within a limited distance of a few hundred feet?

Answer 16

Local Area Network (LAN)

Question 17

What network type connects LANs that are building-centric within a distance of up to a few miles of each other?

Answer 17

Campus Area Network (CAN)

Question 18

What network type connects scattered locations across a city or metropolitan area up to about 25 miles of each other?

Answer 18

Metropolitan Area Network (MAN)

Question 19

What does WLAN stand for?

Answer 19

Wireless Local Area Network

Question 20

What network type provisions access to configurable pools of storage devices that can be used by application servers?

Answer 20

Storage Area Network (SAN)

Question 21

What network type uses a centralized server or simply provides clients access to local devices like printers, file storage, or the internet?

Answer 21

Small Office, Home Office (SoHo) LAN

Question 22

What refers to a global network of appliances and personal devices that have been equipped with sensors, software, and network connectivity to report
state and configuration?

Answer 22

Internet of Things (IoT)

Question 23

What max distance should twisted pair cable runs be under from the IDF to the office?

Answer 23

70 meters

Question 24

What is the difference between bandwidth and throughput?

Answer 24

Bandwidth measures theoretical (maximum) data being transferred while throughput measures actual successful data transfer.

Question 25

What designation describes bandwitdth and cable type?

Answer 25

Ethernet Standard

Question 26

Also known as a straight-through cable, what contains the exact same pinouts on both sides?

Answer 26

Patch cable

Question 27

What standard is preferred when wiring jacks inside of buildings?

Answer 27

568b

Question 28

What cable swaps the placement of send & receive pins from one end to the other?

Answer 28

Crossover cable

Question 29

What is an automated way to electronically simulate the use of a crossover cable?

Answer 29

Medium dependent interface crossover (MDIX)

Question 30

What cable rating specifices a stronger sheathing & jacket that can withstand more extreme weather conditions?

Answer 30

Direct Burial

Question 31

What type of fiber optic cable is used for longer distances and has a smaller core diameter (8.3-10µ) which allows for only a single mode of travel for the light signal?

Answer 31

SMF (Single Mode FibeR)

Question 32

What type of fiber optic cable is used for distances of 2km or less and has a larger core diameter (50-100µ) which allows for multiple modes of travel for the light signal?

Answer 32

MMF (Multimode Fiber)

Question 33

What are the four types of coaxial cable jacks?

Answer 33

RG-6, RG-59, F-type, and BNC

Question 34

How is a twinaxial cable different from a coaxial cable?

Answer 34

It uses two inner conductors to carry data instead of just one

Question 35

What is similar to a cable tester but is used specifically for twisted pair ethernet cables?

Answer 35

Wire mapping tool

Question 36

What are the six types of twisted pair cable errors?

Answer 36

Open pairs, Shortened pairs, Short between pairs, Reversed pairs, Crossed pairs, and Split pairs

Question 37

What is used to determine a cable's category or data throughput?

Answer 37

Cable certifier

Question 38

What device facilitates the testing of simple network issues?

Answer 38

Loopback adapter/device

Question 39

What device connects directly to the cable infrastructure and splits or copies packets for analysis, security, or general network management?

Answer 39

Tap

Question 40

What device ensures proper coverage and prevents overlap between wirless access point coverage zones and channels?

Answer 40

Wireless analyzer