Test your basic knowledge |

GIAC

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. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0
What categories do vulnerabilities fall into?
IDS data normalization
What range is a class C network?
Honeypot

2. Attaches itself to existing program files and activated when the exe is launched
Some NIDS topology limitations
What ways should the crypto key be protected?
Some firewall benefits
Program infector

3. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis
A netcat listener
the application layer
Stateful firewall
The protected enclave to defense in depth

4. Considered to be a perimeter device
HIDS monitor
Types of ATM virtual circuits
Router
IDS not

5. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
Some disadvantages of honeypots
SYN flood
No State Inspection ACK flag set
What categories do vulnerabilities fall into?

6. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested
Checksum in UDP
What primary threats should be protected against
Vulnerabilities
Some malware capabilities

7. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Some common UDP ports
Vulnerabilities
Boot record infector
Some reasons to use UDP over TCP

8. Network scanner.
Some ways to bypass firewall protections
Some reasons to use UDP over TCP
When talking about protocols and referencing layers - what stack is used
Nmap

9. 53 bytes - 48 bytes for data - 5 bytes for the header
War Dialing
A network protocol
Total cell size for asynchronous transfer mode (ATM)
Snort

10. Malware - insider threat - natural disaster - terrorism - pandemic
What primary threats should be protected against
Some NIDS topology limitations
ACK piggybacking
Types of viruses

11. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer
Datagram length of a UDP packet
The OSI model
File integrity checking work
ACK piggybacking

12. Confidentiality - symmetric encryption
Boot record infector
When talking about protocols and referencing layers - what stack is used
The goals of cryptography
Smurf attack

13. Stateful firewalls maintain state of traffic flows
Race conditions
Stateful firewall
CIDR
Trojan horse

14. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
The OSI Protocol Stack
The CIA triad
Asynchronous Transfer Mode
IDS

15. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Group
Boot record infector
File integrity checking work
TFTP

16. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering
Risk
Some Pen Test techniques
Port scan
Best way to protect wireless networks

17. Intrusion detection system - it reports attacks against monitored systems/networks
Denial of service
Trap door
IDS
The protected enclave to defense in depth

18. 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
The presentation layer
Honeypot
The four basic approaches to defense in depth
Some firewall benefits

19. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring
MAN
A netcat listener
COM/Script program infector
Some NIDS topology limitations

20. Publish separate mail - web - and DNS servers to the internet - provide appropriate access from internal network to internet - protect internal from external attack - provide defense in depth - protect all aspects of the system
The protected enclave to defense in depth
Some network design objectives
Best way to protect wireless networks
CIDR

21. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
What categories do vulnerabilities fall into?
Port scan
Some types of malicious code
What range is a class A network?

22. Simple attack done by simply browsing available information that's allowed on a local network.
Program infector
Browsing attack
The Information Centric defense in depth
Buffer overflow

23. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
UDP packet headers
Some common TCP ports
TFTP
IDS signature analysis work

24. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters
Stateful firewall
The three goals of security
Proxy or application gateway
Rotation?

25. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
Defense in depth
The Information Centric defense in depth
Some NIDS topology limitations
What's an easy way to test encryption?

26. Intellectual property - business goals - validated data - historical
Router
COM/Script program infector
What threats should be protected against - based on threat levels
SYN flood

27. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
NIDS challenges
Ack Piggybacking
The difference in stacks
Integrity of Data

28. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
File Integrity checking work
Total cell size for asynchronous transfer mode (ATM)
Denial of service
MAN

29. Protocol for mapping an IP address to a physical machine address that is recognized on the local network. A table - usually called the ARP cache - is used to maintain a correlation between each MAC and its corresponding IP address
COM/Script program infector
IDS
Address resolution protocol
Bridge

30. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.
Asynchronous Transfer Mode
When setting up a virtual circuit
Snort
What categories do vulnerabilities fall into?

31. 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
COM/Script program infector
Port scan
Ack Piggybacking
Honeypot

32. Connects many WANs - MANs - and LANs - provided via ISP
No State Inspection ACK flag set
The four basic approaches to defense in depth
Internet
Plaintext

33. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script
Stateless packet filter
The conficker worm
Plaintext
Some honeypot advantages

34. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself
Worms
Some malware propagation techniques
Some reasons to use UDP over TCP
Total cell size for asynchronous transfer mode (ATM)

35. Uniform protection - protected enclaves - information centric - threat vector analysis
Parasitic malware
When setting up a virtual circuit
Best way to protect wireless networks
The four basic approaches to defense in depth

36. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
Anomaly analysis work
Browsing attack
What ways should the crypto key be protected?
The different cable categories

37. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive
IDS not
Trojan horse
A blind FTP
Nmap

38. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
The physical layer stack
The CIA triad
MAN
Some common TCP ports

39. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Some FTP dangers
Address Resolution Protocol (ARP)
TFTP
Some disadvantages of honeypots

40. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in
Social engineering
IDS signature analysis work
What primary threats should be protected against
Overview of TCP

41. 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
Denial of service
The different cable categories
Some network design objectives
The CIA triad

42. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK
IDS not
3-way handshake
The transport layer
Internet

43. An agreement on how different computer will work - protocols define the format and order of messages and what to do upon receipt of the messages - basically the rules of the network
Risk
What's a VLAN
Some other UDP based protocols
A network protocol

44. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored
Boot record infector
UDP packet headers
The OSI Protocol Stack
Log monitoring work?

45. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host
No State Inspection ACK flag set
Remote maintenance
Social engineering
A netmask

46. Spread as an office attachment with executable code programmed using macro facility - targets are data files - visual basic editor and other macro languages - payload executes when the code is launched
The physical layer stack
Program infector
Macro virus
NAC

47. Relies on executable code insertion and user interaction to spread
HIDS monitor
Parasitic malware
IDS not
DDoS attack

48. One is for talking - one is for implementing
MAN
The difference in stacks
When talking about protocols and referencing layers - what stack is used
Snort

49. Known - unknown - zero day
Risk
Rootkit
ATM work
What categories do vulnerabilities fall into?

50. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p
Some malware propagation techniques
To close a TCP session
Worms
3-way handshake