question

A worldwide system of connected computer networks.

answer

Internet

question

Computers that connect to the internet use the _________ protocol suite.

answer

TCP/IP

question

The internet's IP classification system is defined by the ____________.

answer

Internet Assigned numbers Authority (IANA)

question

DNS is defined by the ___________.

answer

Internet Engineering Task Force (IETF)

question

An enormous system of interlinked hypertext documents that can be accessed with a web browser.

answer

World Wide Web (WWW)

question

An interactive type of web experience. It allows users to interact with each other and act as contributors to Web sites as well.

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Web 2.0

question

Used by organizations to share data with select individuals.

answer

Intranets & Extranets

question

A private computer network or single Web site that an organization implements in order to share data with employees around the world.

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Intranet

question

Used to share data with sister companies or other partnered organizations.

answer

Extranet

question

Allows connectivity between two remote networks.

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Virtual Private Network (VPN)

question

A connection between two or more computers or devices that are not on the same private network.

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Virtual Private Network (VPN)

question

VPNs normally utilize one of two tunneling protocols.

answer

PPTP & L2TP

question

The more commonly used VPN tunneling protocol as well as the less secure option.

answer

PPTP

question

This VPN tunneling protocol generally includes security mechanisms, and no additional software or protocols need to be loaded.

answer

PPTP

question

The Point-to-Point Tunneling Protocol (PPTP) utilizes port __________.

answer

1723

question

PPTP works within the ___________, which is also used for dial-up connections.

answer

Point to Point Protocol (PPP)

question

A VPN tunneling protocol that utilizes IPsec as its security protocol.

answer

L2TP

question

A VPN device or server that allows incoming L2TP connections must have inbound port ________ open.

answer

1701

question

Used to protect a network from malicious attack and unwanted intrusion.

answer

Firewalls

question

The most commonly used type of security device in an organization's perimeter.

answer

Firewalls

question

The two two types of firewall technologies built into firewalls.

answer

SPI & NAT

question

Inspects each packet that passes through the firewall and accepts or rejects it based on a set of rules.

answer

Packet Filtering

question

Does not retain memory of packets that have passed through the firewall which makes it vulnerable to IP spoofing attacks.

answer

Stateless Packet Filtering

question

A firewall running this is normally not vulnerable to IP spoofing attacks because it keeps track of the state of network connnections by examining the header in each packet.

answer

Stateful Packet Inspection (SPI)

question

This function operates at the network layer of the OSI model.

answer

Stateful Packet Inspection (SPI)

question

Filters traffic according to ports (TCP or UDP)

answer

NAT Filtering

question

NAT Filtering utilizes ______ or ______.

answer

TCP & UDP

question

Supports address and port translation and checks whether the type of application traffic is allowed.

answer

Application level Gateway (ALG)

question

This type of Firewall Methodology checks each type of packet coming in and discards those that are Telnet packets.

answer

Application level Gateway (ALG)

question

These hide information about the private network, but they do not filter individual packets.

answer

Circuit level Gateways

question

This works at the session layer of the OSI model when a TCP or UDP connection is established.

answer

Circuit level Gateways

question

Acts as an intermediary between a LAN and the Internet.

answer

Proxy Server

question

This means "go-between" and acts as a mediator between a private and public network.

answer

Proxy Server

question

Evaluates requests from clients, and if they meet certain criteria, forwards them to the appropriate server.

answer

Proxy Server

question

Attempts to serve client requests without actually contacting the remote server.

answer

Caching Proxy

question

The most common caching proxy is the _______ proxy, also known as a web proxy, which caches web pages from servers on the Internet for a set amount of time.

answer

HTTP

question

This is utilized to save bandwidth on the company's internet connection and to increase the speed at which client requests are carried out.

answer

HTTP Proxy

question

Secures a network by keeping machines behind it anonymous; it does this through the use of NAT.

answer

IP Proxy

question

A basic four-port router will act as an IP Proxy for the clients on the LAN it protects. This is an example of __________.

answer

IP Proxy

question

Filters out various types of Internet activities, such as access to certain Web sites, email, instant messaging, and so on.

answer

Internet Content Filter

question

An Internet Content Filter, or simply a content filter, is usually applied as software at the ____________ layer of the OSI model.

answer

Application

question

A type of IDS that attempts to detect malicious network activities by constantly monitoring network traffic.

answer

Network Intrusion Detection System (NIDS)

question

Designed to inspect traffic, and, based on its configuration or security policy, it can remove, detain, or redirect malicious traffic in addition to simply detecting it.

answer

Network Intrusion Prevention System (NIPS)

question

This configuration has a DMZ situated between two firewall devices, which could be black box appliances or Microsoft Internet Security and Acceleration (ISA) Servers.

answer

Back To Back

question

In this configuration, the DMZ is usually attached to a separate connection of the company firewall.

answer

3 Leg Perimeter Configuration

question

In the 3-Leg Perimeter Configuration, the firewall has three connections: one to the company _______, one to the _______, and one to the _________.

answer

Lan, DMZ, Internet

question

You have been tasked to set up an authentication server on a DMZ that will allow only users from a partner company. What kind of network are you configuring?

answer

Extranet

question

You are in charge of setting up a VPN that allows connections on inbound port 1723. What tunneling protocol are you going to use?

answer

PPTP

question

Proseware, Inc., wants you to set up a VPN server. What service in Windows Server 2008 should you use?

answer

RRAS

question

The IT director has asked you to install a firewall. Which of the following is not a type of firewall?

answer

DMZ

question

You suspect an issue with one of the ports on the firewall. You decide to scan the ports. Which of the following is the appropriate tool to use?

answer

NMAP

question

Your client wants a server that can cashe web pages in order to increase the speed of commonly accessed Web sites. What type of server does the client require?

answer

Proxy

question

The customer you are working for wants a device that can detect network anomalies and report them to an administrator. What type of device is the customer looking for?

answer

NIDS

question

Your boss asks you to set up an area that is not on the LAN but not quite on the internet. This area will house servers that will serve requests to users who are connecting to your intranet. What type of zone does your boss want you to set up?

answer

DMZ

question

You have been asked by a client to install a VPN server that can offer unencrypted tunnels by default, or encrypted tunnels by using IPSec. Which of the following services should you choose in order to accomplish this?

answer

L2TP

question

You have set up a default VPN in Windows Server 2008. However, your boss is not happy with the level of security. She would rather have L2TP combined with IPsec. What tunneling prtocol is running currently on the server?

answer

PPTN

question

Allows users to interact with each other and contribute to Web Sites.

answer

Web 2.0

question

The ___________ defines DNS.

answer

Internet Engineering Task Force (IETF)

question

The ___________ is an enormous system of interlinked hypertext documents.

answer

World Wide Web (WWW)

question

You have set up a netowrk zone that allows remote access for employees of your company. This is known as a ____________.

answer

Intranet

question

You install a VPN server that uses inbound port 1701. The server is utilizing the ____________ protocol.

answer

L2TP

question

You installed a VPN server and configured a VPN adapter on a client computer. However, the connection cannot be completed from the client to the server. This is because you skipped the ____________ step.

answer

Configure Users

question

The VPN server has been configured and is running properly. however, it has not been configured to hand out IP addresses to clients. When a VPN server is configured this way, the clients obtain their IP addresses from a ___________ server.

answer

DHCP

question

A firewall normally has a private and a __________ IP address.

answer

Public

question

You have installed a firewall that accepts or rejects packets based on a set of rules. This firewall keeps track of the state of the network connection. it is running a type of packet filtering known as __________.

answer

Stateful Packet Filtering

question

aYou have configured a firewall so that all ports are closed. Now you are attempting to scan the firewall's ports to verify that there are no open ones. you should use the ___________ option within the Nmap port scanning program.

answer

P0

question

What type of network can you set up that is another company's internal network?

answer

Extranet

question

What technology can you use temporarily to connect netowrks from two different companies?

answer

VPN

question

Which VPN technology is the most common and the easiest to set up?

answer

PPTP

question

What port does L2TP use?

answer

1701

question

Which type of firewall blocks packets based on rules that are based on IP addresses or ports?

answer

Packet Filtering

question

What technology used in firewalls keeps tracks of conversations so that it knows what to allow back into a network?

answer

Stateful Packet Inspection

question

What acts as a middleman that translates between internal and external addresses and that caches previously accessed web pages so that it can provide those more quickly in the futue?

answer

Proxy Server

question

What type of device is designed to inspect traffic, detect malicious activities, and take steps to mitigate the malicious activity?

answer

Network Intrusion Prevention System (NIPS)

question

Which DMZ configuration uses one firewall with three interfaces?

answer

3 leg perimeter configuration

question

What protocol is used with L2TP to provide encryption?

answer

IPSec

question

What type of firewall works on the Session layer that creates a connection and allows packets to flow between the two hosts without further checking?

answer

Circuit level Gateway

question

What type of firewall do you use to block access to certain websites or instant messengers?

answer

Internet Content Filter

question

When trying to protect your network, you should create your secure network based on ____________.

answer

Layers

question

What device is used to protect one network from another by using filtering packets?

answer

Firewall

question

What type of configuration creates a DMZ between two firewalls?

answer

Back to Back

Lesson 8: Defining Network Infrastructures And Network Security

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