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Modules 1 - 3
Modules 4 - 7
Modules 8 - 10
Modules 11 - 13
Modules 14 - 17
100

What does BYOD mean, and is it easy or hard for a network admin to support it?

Bring your own device, hard to support as many devices with many ownerships are hard to keep secure

100

What are the 3 types of media

Copper Cabling

Fiber Optic

Wireless

100

Where does an end device send data if the data is meant to leave the network

the default gateway or router

100

Why are broadcast domains a problem?

All the same network broadcasts (ARP) get sent to many devices which can clog up network
100

End communication with TCP

Send Fin bit 1 - 2

Send Ack 2 - 1

Send Fin 2 - 1

Send Ack 1 - 2

200

Do you use a GUI or a CLI on your chromebook?

GUI

200
What is EMI/RFI and crosstalk and how is it mitigated?

Electormagnetic/Radio Frequency Interference

Shielding

Different signals from different lines

Twisting wires in different ways

200
How do we know that a routing protocol was used by looking at a routing table?

There should be a letter NOT S, C, L. 

Examples: R, O, E, G.

200

IPv4 address: 192.168.10.0/24

Make 4 networks.

192.168.10.0/26

192.168.10.64/26

192.168.10.128/26

192.168.10.192/26

200

Can you (end devices) receive multiple DHCPRequests from different DHCPv4 servers?

No.

You can receive multiple DHCPOffers. DHCPRequests are sent by the end devices to the server(s) saying which address they chose.

300

What does ? do in the CLI? Example ping ?

Gets you more information about a command. 

300
How can you tell if a number is in binary or in hexadecimal
Binary - only 1s and 0s 

Hexadecimal - 0-9,A-F

300

When is ARP used?

When an end device on a local network wants to send a message to another device on the same network but they do not know the MAC address

300

2001:db8:1::/48

Make 4 networks

2001:db8:1::/64

2001:db8:1:1:/64

2001:db8:1:2:/64

2001:db8:1:3:/64

300

Which protocols are needed to write and access your emails?

SMTP - write

POP or IMAP - receive emails

400

Where do you put an IP address on a switch?

VLAN 1

400

What is the difference between CSMA/CA and CSMA/CD

(Both half duplex)

Collision Avoidance - newer, based on timing, wifi

Collision Detection - legacy, stop network, bus and hub

400

What are the two types of messages in ARP?

ARP request and ARP reply

400

What is the difference between GUA and LLA?

Globally Unique Address - routable

Link-Local Address - only on link

400

All of my data goes through a threat actor's device before going to the Internet. What type of attack am I experiencing?

Man-in-the-middle

500

Which layer of the OSI model references the Internet layer of the TCP/IP model?

Network (layer 3 OSI - note internet is Layer 2 of TCP/IP)

500
What are the 2 steps a switch does when it receives a frame?

Step 1 - learn from source MAC, save/update in table

Step 2 - forward to destination, if not in table flood

500

How do you set up a default gateway on an end devices and a switch

Ip configuration page

Ip default-gateway address

500

When would you use ping and not traceroute

When you only need to know if the host is reachable, not the pathway (you cannot access routers on the path)

500

If you come across a network problem that is more complicated or difficult than you can handle, what should you do?

Escalate the problem to a supervisor.