Commands
Networks
Common Protocols
Security Threats
Network Hardware
100
This command allows a user to track packets across the network to determine the location of connection issues.
traceroute
100
A network in which all computers are considered as peers or equals. Because administration is spread across the entire network, it is considered a decentralized administration. BONUS: What is the Microsoft version of this?
peer-to-peer network, BONUS: Domain
100
The protocol for exchanging files over the internet. It is most commonly used to download a file from a server using the Internet or to upload a file to a server.
FTP
100
This type of attack relies on user input to spread by infecting a valid applications executable file.
Virus
100
A network device that contains electronic components to send and receive a digital signal.
NIC
200
This command allows a user to query the dns to troubleshoot problems associated with it. BONUS: Linux's version of the command
nslookup, BONUS: dig
200
A type of network model that consists of computers connected via a network to one or more servers. It is considered to be centralized administration. BONUS: What is the name for the Microsoft implementation of this?
client/server network, BONUS: Domain
200
The underlying protocol used by the World Wide Web. It defines how messages are formatted and transmitted.
HTTP
200
This type of attack is often masked as a seemingly helpful application.
Trojan
200
A network device that regenerates a weak signal into its original strength and form. Takes all signals received in one port and sends it out of the other port. BONUS: What device is similar but has multiple output ports?
repeater, BONUS: hub
300
This command displays all open TCP/IP connections. BONUS: What switch for this command will display the routing table.
netstat, BONUS: -r
300
A network that is usually confined to a single building and is managed by a single entity such as a company.
LAN
300
The suite of communications protocols used to connect hosts on the Internet. It uses several protocols, including the two main ones used for its name.
TCP/IP
300
What is the difference between a stateless vs stateful router? BONUS: What is the difference between IDS vs IPS?
A stateless router does not inspect the packets beyond basic information such as IP address. Stateful can make decisions based on the next chunk of data found in a segment.
300
A network device that filters network traffic or creates sub-networks from a larger network.
switch
400
This command allows for the connecting, removing and mapping of shared resources.
netuse
400
A network that consists of a large number of networks and PCs connected with private and public communication lines throughout many geographic areas.
WAN
400
A protocol used to retrieve e-mail from a mail server. Currently in version 3.
POP3
400
What is the DMZ(demilitarized zone)? BONUS: What are the other 2 zones located around it called. DOUBLE BONUS: What would you find within them?
The area between two firewalls in a LAN. It is used for your Web/VPN servers. BONUS: Internal - (DB) DNS, DHCP servers(this not needed by the external), External - (DB) Internet
400
A network device that navigates packets across large networks, such as the Internet, using the most efficient route. BONUS: At what layer of the TCP/IP model does it operate?
router
500
This command is designed to help troubleshoot host name resolution problems
nbtstat
500
A network, under one management, that consists of two or more LANs connected with private communication lines within the same geographic area, such as a city or a university campus.
MAN
500
An Internet standard protocol that assures accurate synchronization to the millisecond of computer clock times in a network of computers.
NTP
500
What is AAA? BONUS: Which AAA protocol uses TCP? UDP?
Authentication - Who are you, Authorization - What can you do, Accounting - What did you do ... BONUS: TACACS+, RADIUS+
500
A network device that connects networks that use different protocols.
gateway
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