SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks
What categories do vulnerabilities fall into?
What's a VLAN
The Uniform Protection to defense in depth
Log monitoring work?
2. Protected at rest - protected in transit - secure the key
Some other UDP based protocols
3-way handshake
COM/Script program infector
What ways should the crypto key be protected?
3. 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
What threats should be protected against - based on threat levels
Some network design objectives
Buffer overflow
The presentation layer
4. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS
The session layer
The network layer
IDS signature analysis work
Some common UDP ports
5. A time of check/time of use attack that exploits the difference in between when a security control was applied and the time the service was used.
Stateless packet filter
Race conditions
To close a TCP session
Checksum in UDP
6. Relies on executable code insertion and user interaction to spread
What categories do vulnerabilities fall into?
Parasitic malware
TFTP
What's a VLAN
7. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector
Best way to protect wireless networks
Proxy or application gateway
Address Resolution Protocol (ARP)
Types of viruses
8. 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
Some network design objectives
Alteration of code
NIDS challenges
HIDS monitor
9. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
What threats should be protected against - based on threat levels
Hping
Denial of service
The five threat vectors
10. Used by IDS for a baseline before analysis - attackers will try to de-normalize traffic to evade detection - IDS will normalize data for understood protocols
IDS signature analysis work
Bus Topology
IDS data normalization
Some firewall benefits
11. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction
A netcat listener
The goals of cryptography
Risk
The network layer
12. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters
Rotation?
What range is a class C network?
The goals of cryptography
Log monitoring work?
13. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
SYN flood
To close a TCP session
Some other UDP based protocols
A network protocol
14. Confidentiality - symmetric encryption
Snort
The four types of events reported by IDS
The goals of cryptography
Ciphertext
15. 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
A network protocol
The goals of cryptography
NIDS advantages
The physical layer stack
16. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Parasitic malware
MAN
Some reasons to use UDP over TCP
The protected enclave to defense in depth
17. logic bomb - trojan horse - trap door
Plaintext
The four types of events reported by IDS
The data link layer
Some types of malicious code
18. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall
Deep packet inspection
Some other UDP based protocols
The goals of cryptography
Some FTP dangers
19. Unencrypted message in its original form
Plaintext
WAN
Multi protocol label switching
Honeyd
20. Stateful firewalls maintain state of traffic flows
A netcat listener
Stateful firewall
A blind FTP
The physical layer stack
21. Very simplistic. All systems are attached to the same cable segment. Rarely used because they're unreliable - low fault tolerance - poor traffic isolation - with limited scalability
Bus Topology
Denial of service
Macro virus
Some common TCP ports
22. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
The threat vector analysis in defense in depth
Arbitrary substitution
ATM work
Best way to protect wireless networks
23. 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
Permutation
Social engineering
Honeyd
The OSI model
24. Attaches itself to existing program files and activated when the exe is launched
When implementing protocols - what stack should be used?
Permutation
The threat vector analysis in defense in depth
Program infector
25. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
When talking about protocols and referencing layers - what stack is used
A network protocol
Firewall
Deep packet inspection
26. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment
Overview of TCP
Port scan
Worms
Kismet
27. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
Some firewall benefits
The data link layer
What range is a class B network?
WAN
28. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Some firewall benefits
Alteration of code
Honeyd
When talking about protocols and referencing layers - what stack is used
29. 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
Types of viruses
The difference in stacks
Remote maintenance
IDS signature analysis work
30. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution
The OSI model
Permutation
ACK piggybacking
The presentation layer
31. Slow - requires stateful data tracking - inspects all fields - including variable-length fields
Deep packet inspection
No State Inspection ACK flag set
Switches
Vulnerabilities
32. 53 bytes - 48 bytes for data - 5 bytes for the header
Total cell size for asynchronous transfer mode (ATM)
Some disadvantages of honeypots
Address resolution protocol
Plaintext
33. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest
Some malware capabilities
Some reasons to use UDP over TCP
Datagram length of a UDP packet
HIDS monitor
34. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers
Some reasons to use TCP over UDP
Logic bomb
Address resolution protocol
What's a VLAN
35. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
Worms
Integrity of Data
The transport layer
SQL Slammer Worm
36. 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
Some external threat concerns
Asynchronous Transfer Mode
Shallow packet inspection
Types of viruses
37. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
SQL Slammer Worm
Trojan horse
The session layer
No State Inspection ACK flag set
38. Trying to ID modems in a telephone exchange that may be susceptible to compromise
War Dialing
Some firewall benefits
Honeyd
Program infector
39. Network scanner.
Denial of service
Parasitic malware
War Dialing
Nmap
40. 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
Some reasons to use TCP over UDP
The physical layer stack
Some honeypot advantages
Address resolution protocol
41. Confidentiality - integrity - availability
HIDS monitor
Some FTP dangers
The three goals of security
Checksum in UDP
42. 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.
Trojan horse
The transport layer
Buffer overflow
The data link layer
43. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
Program infector
The difference in stacks
Group
Wardriving
44. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Parasitic malware
SQL Slammer Worm
Some reasons to use UDP over TCP
TFTP
45. Known - unknown - zero day
What's a VLAN
What categories do vulnerabilities fall into?
ATM work
Address Resolution Protocol (ARP)
46. The practice of sending an ACK inside another packet going to the same destination
ACK piggybacking
The Uniform Protection to defense in depth
Some Pen Test techniques
Rotation?
47. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.
Switches
A netmask
Stateless packet filter
Some other UDP based protocols
48. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host
Total cell size for asynchronous transfer mode (ATM)
Stateless packet filter
A netmask
Network stumbler
49. 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
What ways should the crypto key be protected?
Types of ATM virtual circuits
When talking about protocols and referencing layers - what stack is used
A netmask
50. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
Some malware propagation techniques
No State Inspection ACK flag set
Switches
Stateful firewall