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Flashcards in CISA Review Deck (68):
1

DDOS

Such attacks are contreally initiated and involve the use of multiple compromised computers. The attacks work by fuloding the target site with spurious data, thereby overwhelming the network and other related resources.

2

Cheif information security officer

A senior level corporate official responsible for articulating and enforcingthe policies that companies uses to protect their information assets.

3

CISO is a much broader roll than a chief security officer (CSO ) who is normally only responsible fro pysical security within the organization

TRUE

4

DAC ( descritionary access control ) cannot override MAC ( Mandatory access control ) , DAC is an additional filter, prohibiting still more access wtih the same exclusionary principle

TRUE

5

cyber criminals take advantage of existing gap in the legislation of different countries when planning syber attacks in order to avoid posecution

TRUE

6

Crackers

Person who try to break the security of and gain access to somone else system without being invited to do so

7

DOS, Haking

Target of attack - Specfiic computer, Source of attack Computer is the object of crime. Prepetrator uses another computer to launch attack

8

Fraud, Unauthorized access, Phishing, Installing key loggers

Computer is the tool of crime. Target is data or information stored in the computer

9

Social engineering methods

Computer symbolizes the crime.Target is the user of the computers.

10

Social Engineering methods

Phishing, Fake websites, scam mails, Spam mails and Fake resumes for employement

11

Alteration attack

Occurs when unothorzied modification affect the integrity of the data or code. Cryptographic hash is a primary defense against alteration attacks

12

Botnets

Comprise a collection of compromised computers ( called zombie computers) running software, usually installed vaia worms, Torjan horses or back doors.

13

DOS Attack

Examples: Smurt attack, Ping flood, SYS Flood, Teadrop attack, peer to peer attack, Permanant Denial of service attack, Application level flood attack, Nuke, DDOS, Reflected attack,

14

Smurf attack

Occurs when misconfigured network devices allow packets to be sent toall hosts on a particular network viea the broadcast address of the network

15

Ping flood

Occurs when the target system is overwhelmed with ping packets

16

SYS Flood

send a flood of TCP/SYN packts with forged sender address, causing half open connections and saturates available connections cpacity of the target machine

17

Teadrop attack

Involves sending mangled IP fragments with overlapping, oversized payloads to the target machine

18

Banana attack

Redirects outgoaing messages from the client back onto the client, preventing outside access, as well as flooding the client with the sent packets

19

Reflected attack

Involves sending forged requests to a large number of computers that will reply to the request. Thesource IP address is spoofed to that of the targeted victime, causing the replies to flood

20

Email spoofing

A user receives an email message that appears tohae originated from one source but actually was sent from another source.

21

Flooding

A denial of service attack gthat brings down network or service by folloding it with large amount of traffic

22

Trap doors

Commonly called back doors. Bit of code embedded in program by programmers to quickly gain access during the testing or debugging phase.

23

Masquerading

An active attack in which the intruder present an identity other than the original identity. Impersonation both by people and machines fall under this category. Masquerading by machine ( also called as IP spoofing ) - A forged IP address is presented

24

Packet replay

A combination of passive and active mode of attack. This form of attack is effective particularly where the receiving end of the communicationchannel is automated and will act on receipt and interpretation of the information packets without human intervention

25

Phishing

The criminally fraudulent process of attempting to acquire sensitive information, such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication

26

Spear Phishing

A pinpoint attack against a subset of people to undermine a company or organization

27

Pharming

An attack that aminsn to redirect the traffic of a web site to a bogus web site. It can be conducted either by changing the hoset file on a victims computer or by exploiting a vulnerability in DNS server software.

28

Social engineering

The human side of breaking into computer system

29

Piggybacking

act of following authorized person through a secured door or electronically attaching to authorized telecommunication link.

30

Piggybacking is considered a physical access exposure

TRUE

31

Race conditions

Also knows as Time of Check (TOC). Time of Use (TOU) attack. Exploit a small windo of time between the time that security control is applied and time that the service is used.

32

carfule programming and good administration practices help to reduce race conditions

TRUE

33

Resource Enumeration and Browsing

When the attacker lists the various resources on targeted hosts and networks. Browsing a form of rresource enumeration attack and is preformed by a manual search.

34

The difference between the rounding down technique and salami technicuq is that in rounding down, the program rounds off by the smallest money fraction, whereas salami technique truncate last few digits

TRUE

35

War chalking

The practice of marking a series of symbols on sidewalks and wall to indicate nearby wireless access points

36

War walking

Similar to war driving, but a vehicle is not used. The potential hackers walk around the vicinity with handheld device or PDA

37

War driving

The practice of driving around businesses or residential neighborhoods while scanning with a notebook computer, hacking toold software and sometimes with a global positioning system to serarch for wireless netowrk names

38

Another risk of peer to peer computing is that users may expose there IP addresses, which can lead to IP spoofing

TRUE

39

THe postincident review phase shoudl determine which vulnerabilities were not addressed and why and input provieded for improvment to the policies and procedures implemented to address vulnerabilities

TRUE

40

wire tapping

involves eavesdroppingon information being transmitted over telecommunication lines

41

Authentication is typically categorized as "something you know" PASSWORD. Somthing you have "TOKEN CARD" and something you are "BIOMETRIC FEATURES"

TRUE

42

Initial password may be allocated by security administrator or generated by the system itself

TRUE

43

Firecall ID

Practices such as keeping the administrator passoword in a sealed envelope, kept in a locked cobinate and available only to top managers, should be implemented

44

The main disadvantage comparerd to other biometris methods is the lackof uniqueness of hand geometry data

TRUE

45

Advantage of Iris identification

the contact with the device is not needed

46

Disadvantage of Iris identification

high cost of system, as compared to other biometric technologies and the high amount of storage requirements needed to uniquely identify a user

47

Retina scan is extremely reliable and it has the lowest fales-acceptance rate among the current biometric methods

TRUE

48

Disadvantage of retina scanning

includes the need for fairly close physical conact with scanning device, which impairs user acceptance, and the high cost

49

The main disadvantage of face recongintion is the lack of uniqueness, which means that people who look like may fool the device

TRUE

50

The main disadvantage is capturing the uniqueness of a signature particularly when a user does not sighn his / her name in a consistent manner

TRUE

51

Disadvantage of VPN

lack of central authority and can be difficult to troubleshoot

52

A good practice will terminate all VPN to the same end point in a so called VPN concentrator, and will not accept VPNs directed at other parts of the network

TRUE

53

The drawback of an IPS is that it may inadvertently block legitimate traffic

TRUE

54

Which of the following attacks targets the Secure Socket Layer SSL

Man in the middle

55

which of the following virus prevention techniques can be implemented through hardware

remote booting

56

Example of deterrance

installation of firewalls for information systems

57

while reviewing the business continuity plan of an organization, an IS auditor observed taht the organization data and software files are backed up on a periodic basis which characteristic of an effective plan does this demonstrate

mitigation

58

MAO is the maximum amount of system downtime that is tolerable. It is used as synanym for RTO. However RTO denotes an objectiv/target, while MAO constitutes a vital necessity for an organisations survival

TRUE

59

A redundancy check

detect transmission errors by appending calculated bit on to the end of each segment of data

60

A resonableness check

compares data to predefined reasonability limit or occurrence rates established for the data

61

A parity check

is a hardware control that detects data errors when data are read from one computer to another, from memory or during transmission

62

check digit

detects transpostion or transcription errors

63

WEP has been shown to be a very weak encryption technique and can be cracked within a minute

TRUE

64

which of the following encryption techniques will best protect a wireless network froma man in the middle attack

Randomly generated pre shared key PSK

65

system logs are automated reports which identify most of the activities performed on the computer

TRUE

66

operation problem reports are used by operator to log computer operation problems

TRUE

67

order or DRP

1 BIA 2 develop recovery strategies 3 Develop specific plan 4 tested and implemented

68

Applying a cryptographic hashing algorithm the entire message addresses the message integrity issue. Enciphering the message digest using the senders private key address non repidiation. Encrypting the message with a symmetric key, thereafter allowing the key to be enciphered using the receivers public key most efficiently address the confidentiality of the message as well as the receiver's non repudiation

TRUE