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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. 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
Rootkit
LAN
Some common TCP ports
IDS signature analysis work
2. Unified data carrying service - replacing from replay and ATM
The protected enclave to defense in depth
Logic bomb
Firewall
Multi protocol label switching
3. Full open - half open (stealth scan) - UDP - Ping
Buffer overflow
Some external threat concerns
Network stumbler
Nmap scanning techniques
4. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks
A network protocol
Some firewall challenges
The Uniform Protection to defense in depth
SYN flood
5. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0
DDoS attack
What threats should be protected against - based on threat levels
Some ways to bypass firewall protections
What range is a class B network?
6. OSI
COM/Script program infector
When talking about protocols and referencing layers - what stack is used
Proxy or application gateway
OS Command Injection defenses
7. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.
Stateless packet filter
The threat vector analysis in defense in depth
Some types of malicious code
NAC
8. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
What range is a class A network?
Honeyd
The TCP/IP model
PAN
9. 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
Wardriving
The five threat vectors
COM/Script program infector
Some reasons to use TCP over UDP
10. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
LAN
What range is a class B network?
The session layer
A network protocol
11. 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.
Buffer overflow
Router
Network stumbler
The session layer
12. Slow - requires stateful data tracking - inspects all fields - including variable-length fields
Deep packet inspection
What ways should the crypto key be protected?
A netmask
Honeypot
13. logic bomb - trojan horse - trap door
Macro virus
NIDS challenges
Total cell size for asynchronous transfer mode (ATM)
Some types of malicious code
14. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
The data link layer
Snort
Defense in depth
Some disadvantages of honeypots
15. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code
Port scan
COM/Script program infector
Nmap
The five threat vectors
16. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Log monitoring work?
NAC
Some reasons to use UDP over TCP
Plaintext
17. fast - with little fidelity - examines header information and limited payload data
Arbitrary substitution
Shallow packet inspection
The OSI Protocol Stack
SQL Slammer Worm
18. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
Permutation
A netcat listener
No State Inspection ACK flag set
Internet
19. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con
What threats should be protected against - based on threat levels
Brute force
The four types of events reported by IDS
ATM work
20. 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
Trap door
The transport layer
Some malware propagation techniques
WAN
21. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
Port scan
What's a VLAN
Switches
Best way to protect wireless networks
22. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
Brute force
Program infector
The conficker worm
SQL Slammer Worm
23. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
The conficker worm
A blind FTP
Some ways to bypass firewall protections
The OSI Protocol Stack
24. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures
The threat vector analysis in defense in depth
NIDS advantages
Rotation?
File integrity checking work
25. It handles the establishment and maintenance of connections between systems
Some disadvantages of honeypots
The session layer
Parasitic malware
Shallow packet inspection
26. Trying to ID modems in a telephone exchange that may be susceptible to compromise
The threat vector analysis in defense in depth
Denial of service
War Dialing
Trojan horse
27. Attaches itself to existing program files and activated when the exe is launched
Some network design objectives
Program infector
IDS data normalization
File integrity checking work
28. Infects MBR - no network spreading potential
Boot record infector
Integrity of Data
COM/Script program infector
A netcat listener
29. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.
Group
DDoS attack
Denial of service
Log monitoring work?
30. TCP/IP - the IP protoco - The core routing protocol of the internet - - deals with transmission of packets between end points - defines the addressing scheme for the internet
Kismet
A netmask
When implementing protocols - what stack should be used?
A network protocol
31. 53 bytes - 48 bytes for data - 5 bytes for the header
Vulnerabilities
Stateless packet filter
Total cell size for asynchronous transfer mode (ATM)
When talking about protocols and referencing layers - what stack is used
32. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted
What range is a class B network?
The transport layer
Network stumbler
What range is a class A network?
33. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
Some firewall benefits
When setting up a virtual circuit
The five threat vectors
Some ways to bypass firewall protections
34. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Proxy or application gateway
Some common UDP ports
NAC
Multi protocol label switching
35. Simple attack done by simply browsing available information that's allowed on a local network.
Plaintext
HIDS monitor
ATM work
Browsing attack
36. Message in its encrypted form
Ciphertext
Some NIDS topology limitations
The goals of cryptography
Defense in depth
37. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
Honeypot
Vulnerabilities
Some other UDP based protocols
The four basic approaches to defense in depth
38. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
Kismet
The threat vector analysis in defense in depth
The goals of cryptography
Integrity of Data
39. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code
Some firewall benefits
Some reasons to use UDP over TCP
What categories do vulnerabilities fall into?
EXE program infector
40. Bits of code embedded in programs to quickly gain access at a later time
Trap door
What range is a class B network?
The session layer
Internet
41. True positive - false positive - true negative - false negative
Defense in depth
Trojan horse
The four types of events reported by IDS
A blind FTP
42. The practice of sending an ACK inside another packet going to the same destination
ACK piggybacking
When setting up a virtual circuit
Best way to protect wireless networks
Risk
43. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules
Some FTP dangers
Arbitrary substitution
Address resolution protocol
Snort
44. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Alteration of code
Best way to protect wireless networks
Hubs
When talking about protocols and referencing layers - what stack is used
45. Relies on executable code insertion and user interaction to spread
A netcat listener
The five threat vectors
Parasitic malware
ACK piggybacking
46. 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
The four basic approaches to defense in depth
Log monitoring work?
Social engineering
NIDS advantages
47. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
Trojan horse
Risk
Some firewall benefits
Social engineering
48. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS
Address resolution protocol
3-way handshake
Honeyd
Shallow packet inspection
49. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
Switches
When talking about protocols and referencing layers - what stack is used
Some firewall challenges
Bus Topology
50. A list of files is defined that should be monitored for a change - HIDS software calculates a one-way hash for each file - if a change is made to the file - the hash is changed
WAN
The OSI model
When implementing protocols - what stack should be used?
File integrity checking work