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Quiz 9
Chapter 11
31
Computer Networking
Undergraduate 3
12/03/2014

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Cards

Term
What is the riskiest network zone?
Definition
Internet
Term
What is the safest network zone?
Definition
Intranet
Term
What networks can be set up between the Internet and intranets?
Definition
Perimeter networks as buffer zones
Term
Term: Robot network; infected computers with malware join this and become a clone/zombie
Definition
Botnet
Term
The Internet is __/__-based
Definition
TCP/IP
Term
The ___ travels over the Internet
Definition
World Wide Web (WWW)
Term
An intranet is basically a ___
Definition
LAN
Term
What are the private IP address ranges?
Definition
10.0.0.1 - 10.255.255.254
172.16.0.1 - 172.31.255.254
192.168.1.1 - 192.168.255.254
Term
Term: Translates private IP addresses to public IP addresses and vice versa
Definition
Network Address Translation (NAT)
Term
What are the benefits of NAT?
Definition
-Hides internal computers
-Reduces costs (of IP addresses)
-Extended IPv4 lifetime
Term
Term: Acts on behalf of the client computers in the internal network to retrieve web content from the internet
Definition
Proxy server
Term
True/False: You can use a proxy server or NAT to protect a client computer
Definition
False; Proxy servers often include NAT
Term
What are the three benefits of a proxy server?
Definition
1. Caching
2. Filtering
3. Content checking
Term
Term: Saving copies of requested items for future requests
Definition
Caching
Term
How does the process of a proxy server work?
Definition
1.Info request to proxy server. If site not on block list...

2. Server checks for malicious content. If valid...

3. Site is stored in cache
Term
Term: Firewall that filters packets based on IP addresses, ports, and some protocols
Definition
Packet-filtering firewall
Term
Term: Traffic is filtered based on state of network connections (known or unknown)
Definition
Stateful filtering
Term
Term: Traffic is blocked based on content
Definition
Content filtering
Term
Term: Traffic is filtered based on an application or service
Definition
Application layer filtering
Term
Term: All traffic that hasn't been explicitly allowed is blocked
Definition
Implicit deny policy
Term
Term: Area between intranet and Internet that host servers accessible from the Internet
Definition
Perimeter network
Term
Term: Additional server in perimeter network that isolates web servers from direct access on the Internet
Definition
Reverse proxy server
Term
Term: Type of perimeter network used by larger organizations that acts as an isolated portion of the internal network that guests can use
Definition
Guest network
Term
Term: Area between the Internet and an intranet that hosts resources for trusted entities via the Internet
Definition
Extranet
Term
True/False: An extranet is only different from a perimeter network based on the intent
Definition
True
Term
What protects the intranet?
Definition
Network Address Translation (NAT)
Term
What can be used to hide a computer's track?
Definition
InPrivate Browsing
Term
Term: Software or hardware that protects your computer
Definition
Firewall
Term
Term: Type of rule that protects against incoming traffic
Definition
Inbound rule
Term
Term: Computer's personal website
Definition
Internet Information Services (IIS)
Term
Another name for a perimeter network is __.
Definition
De-Militarized Zone (DMZ)
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