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Test your basic knowledge |
GIAC
Start Test
Study First
Subjects
:
certifications
,
giac
,
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An attempt to gain access by bombarding it with guesses until the password is found.
Rootkit
Brute force
A network protocol
Firewall
2. Provides insight into the tactics - motives - and attacker tools
Vulnerabilities
Some reasons to use UDP over TCP
Some honeypot advantages
The goals of cryptography
3. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
The Uniform Protection to defense in depth
SYN flood
OS Command Injection defenses
Race conditions
4. ATM supports two types of virtual circuits: permanent virtual circuits and switches virtual circuit - PVC is set up in advance - usually manually - SVC is established automatically through a signaling protocol and can be created on the fly - establis
MAN
War Dialing
The Information Centric defense in depth
Types of ATM virtual circuits
5. Attempt to manipulate or trick a person into providing information or access - bypass network security by exploiting humans - vector is often outside attack by telephone or visitor inside
Hubs
SQL Slammer Worm
the application layer
Social engineering
6. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found
IDS signature analysis work
The protected enclave to defense in depth
Switches
What ways should the crypto key be protected?
7. 1 and 2 - Voice/Low speed data - 3 - Voice/Data 10Mb - 4 - Voice/Data 16Mb - 5 - 5e - Voice/Data 100Mb to 1Gb - 6 - Standard for gigabit
The Information Centric defense in depth
The five threat vectors
Some FTP dangers
The different cable categories
8. Unencrypted message in its original form
SYN flood
NIDS challenges
HIDS monitor
Plaintext
9. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules
Snort
Checksum in UDP
The conficker worm
Parasitic malware
10. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
Some other UDP based protocols
The physical layer stack
A blind FTP
Firewall
11. Network scanner.
Nmap
The OSI Protocol Stack
Stateless packet filter
NIDS advantages
12. 53 bytes - 48 bytes for data - 5 bytes for the header
IDS signature analysis work
Total cell size for asynchronous transfer mode (ATM)
Rootkit
Ack Piggybacking
13. Full open - half open (stealth scan) - UDP - Ping
Nmap scanning techniques
PAN
A netcat listener
What range is a class B network?
14. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code
Group
The five threat vectors
PAN
Some common UDP ports
15. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area
WAN
The different cable categories
The goals of cryptography
Worms
16. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector
A netcat listener
Nmap
Shallow packet inspection
Types of viruses
17. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously
Brute force
Risk
Parasitic malware
Hping
18. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.
Port scan
Overview of TCP
Some other UDP based protocols
Buffer overflow
19. It makes sure the data sent from one side to the other is in a format useful to the other side
SYN flood
The presentation layer
Some network design objectives
HIDS monitor
20. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
Denial of service
Some common TCP ports
Some common UDP ports
What range is a class C network?
21. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
Integrity of Data
The different cable categories
UDP packet headers
3-way handshake
22. A system resource that has no legitimate purpose or reason for someone to connect to it - its purpose is to draw in attackers to understand how they break into a system
Honeypot
Honeyd
Firewall
Nmap scanning techniques
23. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute
The four basic approaches to defense in depth
COM/Script program infector
Port scan
Some types of malicious code
24. Confidentiality - integrity - availability
Best way to protect wireless networks
Some firewall benefits
A netcat listener
The three goals of security
25. Connects many WANs - MANs - and LANs - provided via ISP
Alteration of code
Some malware propagation techniques
Ack Piggybacking
Internet
26. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment
Best way to protect wireless networks
What's a VLAN
The transport layer
Internet
27. Malware - insider threat - natural disaster - terrorism - pandemic
CIDR
To close a TCP session
What primary threats should be protected against
Honeypot
28. OSI
When talking about protocols and referencing layers - what stack is used
Denial of service
To establish a TCP session
Boot record infector
29. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters
The conficker worm
What range is a class B network?
Some malware capabilities
Rotation?
30. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring
Trap door
Some NIDS topology limitations
Anomaly analysis work
Stateful firewall
31. FIN 130 - ACK 131 - FIN 570 - ACK 571
A netmask
Kismet
To close a TCP session
What's a VLAN
32. Intrusion detection system - it reports attacks against monitored systems/networks
Race conditions
IDS
Log monitoring work?
ATM work
33. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Alteration of code
What's a VLAN
Deep packet inspection
Arbitrary substitution
34. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce
Race conditions
SYN flood
Total cell size for asynchronous transfer mode (ATM)
Some external threat concerns
35. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
No State Inspection ACK flag set
Brute force
The four types of events reported by IDS
Proxy or application gateway
36. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535
Proxy or application gateway
Datagram length of a UDP packet
IDS signature analysis work
Kismet
37. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer
Trap door
What range is a class C network?
Router
The OSI model
38. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has
The CIA triad
Some NIDS topology limitations
What range is a class B network?
Asynchronous Transfer Mode
39. Infects MBR - no network spreading potential
Snort
No State Inspection ACK flag set
Integrity of Data
Boot record infector
40. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted
Network stumbler
HIDS monitor
The different cable categories
COM/Script program infector
41. Considered to be a perimeter device
Nmap
Router
OS Command Injection defenses
What's an easy way to test encryption?
42. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Some disadvantages of honeypots
Browsing attack
Multi protocol label switching
PAN
43. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
Integrity of Data
LAN
When implementing protocols - what stack should be used?
Ack Piggybacking
44. Confidentiality - integrity - availability
IDS
Bus Topology
The CIA triad
Some other UDP based protocols
45. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
Hubs
To establish a TCP session
The Information Centric defense in depth
Some network design objectives
46. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
Arbitrary substitution
Some ways to bypass firewall protections
Switches
Deep packet inspection
47. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management
When talking about protocols and referencing layers - what stack is used
Anomaly analysis work
Nmap scanning techniques
NIDS challenges
48. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
Address Resolution Protocol (ARP)
The protected enclave to defense in depth
Arbitrary substitution
Some ways to bypass firewall protections
49. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Kismet
Some firewall challenges
The data link layer
The four basic approaches to defense in depth
50. It interacts with the application layer to determine which network services will be required
Alteration of code
To close a TCP session
the application layer
Some network design objectives