Deck 8: Intrusion Detection

Question 1

To be of practical use an IDS should detect a substantial percentage of
intrusions while keeping the false alarm rate at an acceptable level.

Answer 1

True

Question 2

The IDS component responsible for collecting data is the user interface.

Answer 2

False

Question 3

Those who hack into computers do so for the thrill of it or for status.

Answer 3

True

Question 4

Intrusion detection is based on the assumption that the behavior of the
intruder differs from that of a legitimate user in ways that can be quantified.

Question 5

The ________ is responsible for determining if an intrusion has occurred.

A)analyzer
B)host
C)user interface
D)sensor

Question 6

Snort can perform intrusion prevention but not intrusion detection.

Question 7

An inline sensor monitors a copy of network traffic;the actual traffic
does not pass through the device.

Question 8

A _________ monitors the characteristics of a single host and the events occurring within that host for suspicious activity.

A)host-based IDS
B)security intrusion
C)network-based IDS
D)intrusion detection

Question 9

_________ are either individuals or members of a larger group of outsider attackers who are motivated by social or political causes.

A)State-sponsored organizations
B)Activists
C)Cyber criminals
D)Others

Question 10

Network-based intrusion detection makes use of signature detection
and anomaly detection.

Question 11

Signature-based approaches attempt to define normal,or expected,
behavior,whereas anomaly approaches attempt to define proper behavior.

Question 12

Intruders typically use steps from a common attack methodology.

Question 13

Anomaly detection is effective against misfeasors.

Question 14

Activists are either individuals or members of an organized crime
group with a goal of financial reward.

Question 15

An intruder can also be referred to as a hacker or cracker.

Question 16

The primary purpose of an IDS is to detect intrusions,log suspicious
events,and send alerts.

Question 17

A ________ monitors network traffic for particular network segments or devices and analyzes network,transport,and application protocols to identify suspicious activity.

A)host-based IDS
B)security intrusion
C)network-based IDS
D)intrusion detection

Question 18

Running a packet sniffer on a workstation to capture usernames and passwords is an example of intrusion.

Question 19

A _________ is a security event that constitutes a security incident in which an intruder gains access to a system without having authorization to do so.

A)intrusion detection
B)IDS
C)criminal enterprise
D)security intrusion

Question 20

A common location for a NIDS sensor is just inside the external
firewall.

Question 21

_________ involves the collection of data relating to the behavior of legitimate users over a period of time.

A)Profile based detection
B)Signature detection
C)Threshold detection
D)Anomaly detection

Question 22

A(n)________ event is an alert that is generated when the gossip traffic enables a platform to conclude that an attack is under way.

A)PEP
B)DDI
C)IDEP
D)IDME

Question 23

_________ simulate human brain operation with neurons and synapse between them that classify observed data

Question 24

The broad classes of intruders are: cyber criminals,state-sponsored organizations,_________ ,and others.

Question 25

__________ involves an attempt to define a set of rules or attack patterns that can be used to decide if a given behavior is that of an intruder.

A)Profile based detection
B)Signature detection
C)Threshold detection
D)Anomaly detection

Question 26

The rule _______ tells Snort what to do when it finds a packet that matches the rule criteria.

A)protocol
B)direction
C)action
D)destination port

Question 27

The _______ is the ID component that analyzes the data collected by the sensor for signs of unauthorized or undesired activity or for events that might be of interest to the security administrator.

A)data source
B)sensor
C)operator
D)analyzer

Question 28

A ________ IDS monitors traffic at selected points on a network or interconnected set of networks.

Question 29

__________ is a security service that monitors and analyzes system events for the purpose of finding,and providing real-time warning of attempts to access system resources in an unauthorized manner.

Question 30

The _________ to an IDS enables a user to view output from the system or control the behavior of the system.

Question 31

Copying a database containing credit card numbers,viewing sensitive data without authorization,and guessing and cracking passwords are examples of _________ .

Question 32

________ detection techniques detect intrusion by observing events in the system and applying a set of rules that lead to a decision regarding whether a given pattern of activity is or is not suspicious.

Question 33

The purpose of the ________ module is to collect data on security related events on the host and transmit these to the central manager.

A)central manager agent
B)LAN monitor agent
C)host agent
D)architecture agent

Question 34

A ________ is a hacker with sufficient technical skills to modify and extend attack toolkits to use newly discovered vulnerabilities.

Question 35

A (n)__________ is a hacker with minimal technical skill who primarily uses existing attack toolkits.

A)Master
B)Apprentice
C)Journeyman
D)Activist

Question 36

_________ anomaly detection focuses on characterizing the past behavior of individual users or related groups of users and then detecting significant deviations.

Question 37

An IDS comprises three logical components: analyzers,user interface and _____.

Question 38

The _________ module analyzes LAN traffic and reports the results to the central manager.

A)LAN monitor agent
B)host agent
C)central manager agent
D)architecture agent

Question 39

_________ is a document that describes the application level protocol for exchanging data between intrusion detection entities.

A)RFC 4767
B)RFC 4766
C)RFC 4765
D)RFC 4764

Question 40

A(n)________ is inserted into a network segment so that the traffic that it is monitoring must pass through the sensor.

A)passive sensor
B)analysis sensor
C)LAN sensor
D)inline sensor

Question 41

The functional components of an _________ are: data source,sensor,analyzer,administration,manager,and operator.

Question 42

The _________ (RFC 4766)document defines requirements for the Intrusion Detection Message Exchange Format (IDMEF).

Question 43

________ are decoy systems that are designed to lure a potential attacker away from critical systems.

Question 44

The _________ is the predefined formally documented statement that defines what activities are allowed to take place on an organization's network or on particular hosts to support the organization's requirements.

Question 45

The __________ is the human with overall responsibility for setting the security policy of the organization,and,thus,for decisions about deploying and configuring the IDS.