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CPSA Syllabus > All Appendix 44 > Flashcards

All Appendix 44 Flashcards

1
Q

HTTP / HTTPS OSI Layer

A

Application Layer

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2
Q

FTP OSI Layer

A

Application Layer

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3
Q

SMTP OSI Layer

A

Application Layer

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4
Q

POP3 OSI Layer

A

Application Layer

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5
Q

DNS OSI Layer

A

Application Layer

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6
Q

DHCP OSI Layer

A

Application Layer

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7
Q

SNMP OSI Layer

A

Application Layer

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8
Q

Telnet OSI Layer

A

Application Layer

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9
Q

SSH OSI Layer

A

Application Layer

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10
Q

NTP OSI Layer

A

Application Layer

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11
Q

TFTP OSI Layer

A

Application Layer

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12
Q

SIP OSI Layer

A

Application Layer

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13
Q

RDP OSI Layer

A

Application Layer

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14
Q

SSL OSI Layer

A

Presentation Layer

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15
Q

TLS OSI Layer

A

Presentation Layer

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16
Q

NetBIOS OSI Layer

A

Session Layer

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17
Q

RPC OSI Layer

A

Session Layer

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18
Q

TCP OSI Layer

A

Transport Layer

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19
Q

UDP OSI Layer

A

Transport Layer

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20
Q

IP OSI Layer

A

Network Layer

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21
Q

ICMP OSI Layer

A

Network Layer

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22
Q

IPSec OSI Layer

A

Network Layer

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23
Q

RIP OSI Layer

A

Network Layer

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24
Q

OSPF OSI Layer

A

Network Layer

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25
Q

ARP OSI Layer

A

Network Layer

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26
Q

Ethernet OSI Layer

A

Data Link Layer

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27
Q

MAC OSI Layer

A

Data Link Layer

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28
Q

WiFI OSI Layer

A

Physical Layer

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29
Q

USB OSI Layer

A

Physical Layer

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30
Q

Bluetooth OSI Layer

A

Physical Layer

31
Q

What does SMS stand for

A

Systems Management Server

32
Q

What does SCCM stand for

A

System Centre Configuration Manager

33
Q

What does SMS do

A

SMS is a system management software product by Microsoft for managing large groups of Windows-based computers

34
Q

What does SMS provide

A

Remote control, patch management, OS deployment, hardware/software inventory

35
Q

What does SUS stand for

A

Software Update Services

36
Q

What does SUS do

A

SUS is a tool for centralising the update of Windows systems in a network, the SUS server downloads updates for specified versions of Windows then client can download updates from the internal SUS server, superseded by WSUS

37
Q

What does WSUS stand for

A

Windows Server Update Services

38
Q

What does WSUS do

A

WSUS builds on SUS, by allowing automatic download of hotfixes, updates, service packs, device drivers and feature packs to clients from a local central server

39
Q

What does MBSA stand for

A

Microsoft Baseline Security Analyser

40
Q

What does MBSA do

A

A software tool by Microsoft to assess missing security updates and less-secure security settings

41
Q

How many IP’s in a Class A network

A

16,777,214

42
Q

How many IP’s in a Class B network

A

16534

43
Q

How many IP’s in a Class C network

A

254

44
Q

How to identify through subnet mask a Class A network

A

255.0.0.0

45
Q

How to identify through subnet mask a Class B network

A

255.255.0.0

46
Q

How to identify through subnet mask a Class C network

A

255.255.255.0

47
Q

What is CAT5/Fibre

A

It is a twisted pair high signal integrity cable commonly used in networks, it is more secure and less susceptible to obtaining traffic from emitted signals

48
Q

What is Wireless (802.11)

A

IEEE 802.11 is a set of standards carrying out wireless local area network communications

49
Q

What is a VLAN

A

A VLAN is a group of hosts with a comon set of requirements that communicate as if they were attached to the same broadcast domain

50
Q

What is the most common VLAN number

A

VLAN 1

51
Q

What is VLAN Hopping

A

Allowing to break out of a VLAN

52
Q

What does PGP use for message authentication

A

RSA or DSA

53
Q

What is the X xxx for digital certificates

A

X. 509

54
Q

What is the WEP key length

A

40 bit key

55
Q

What is the bit length of an IV

A

24 bit

56
Q

What does IV stand for (WEP)

A

Initialisation Vector

57
Q

What is the purpose of an IV

A

To prevent and repetition, however a 24-bit IV is not long enough to ensure this on a busy network

58
Q

What does GCOS stand for

A

General Comprehensive Operating System

59
Q

What does the GCOS store and where

A

User information in the /etc/passwd file such as full name, phone number, etc.

60
Q

What is a simple understanding of Cipher Blocks

A

A letter you want to send securely, it is broken up into equal chunks and those chunks are then encrypted and sent

61
Q

What does CFB stand for

A

Cipher Feedback Mode

62
Q

What does CBC stand for

A

Cipher Block Chaining

63
Q

What does CFB do

A

Each plaintext block is XORed with the previous cipher text block before encryption

64
Q

Where is the IV used

A

In the CBC cipher block

65
Q

How is the IV used

A

In the CBC cipher block it is used for the first block to ensure any identical plaintext blocks don’t produce the same output

66
Q

What is CBC vulnerable to

A

If the IV is reused or predictable it can compromise encryption, susceptible to padding Oracle attacks

67
Q

What does ECB stand for

A

Electronic Codebook Mode

68
Q

Vulnerability in ECB

A

Uses the same key for all blocks, same text will be the same output

69
Q

What is an FTP Bounce attack

A

An attacker uses and FTP server to open a communication to 3rd party systems bypassing security controls, can be used to port scan or obscure attack sources

70
Q

What is a TEARDROP attack

A

Involves sending fragmented packets to a target machine, when the target tries to reassemble the packets it crashes due to overlapping fragments, DoSing the machine

71
Q

What is a SMURF attack

A

Type of DDOS where an attacker sends ICMP ping requests to a network’s broadcast address, spoofing the source IP as the victim’s IP, the entire network resposne to the victim causign a DDOS

72
Q

Why does a SMURF attack work

A

It works as the network broadcast address is designed to send the request to all devices in the network which will all reply to the victim

73
Q

What is the length characteristics of a MAC Address

A

6 blocks separated by hypen/colon with 2 char in each block = 12 char

74
Q

How to identify a multicast MAC address

A

01 in the first octet

CPSA Syllabus (8 decks)

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