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Test your basic knowledge |
GIAC
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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. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
Switches
Types of viruses
Honeypot
IDS not
2. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
Plaintext
What's an easy way to test encryption?
The OSI Protocol Stack
The OSI model
3. Full open - half open (stealth scan) - UDP - Ping
Nmap scanning techniques
NAC
Parasitic malware
DDoS attack
4. 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 physical layer stack
Total cell size for asynchronous transfer mode (ATM)
A blind FTP
5. Protected at rest - protected in transit - secure the key
The presentation layer
Nmap scanning techniques
What ways should the crypto key be protected?
Switches
6. 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
Trap door
When implementing protocols - what stack should be used?
Some network design objectives
A blind FTP
7. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
Vulnerabilities
Some reasons to use UDP over TCP
UDP packet headers
Shallow packet inspection
8. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive
IDS not
IDS
Some firewall benefits
Some common UDP ports
9. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
Best way to protect wireless networks
Anomaly analysis work
Nmap
The threat vector analysis in defense in depth
10. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in
Social engineering
The protected enclave to defense in depth
Arbitrary substitution
Overview of TCP
11. An attacker spoofs the victim's IP and sends an ICMP ECHO request to the broadcast address of a network. When every system responds - a DoS occurs.
Nmap
COM/Script program infector
MAN
Smurf attack
12. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
3-way handshake
Some honeypot advantages
Deep packet inspection
SQL Slammer Worm
13. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules
A blind FTP
The OSI Protocol Stack
Snort
Hping
14. 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
A netcat listener
Kismet
Plaintext
File integrity checking work
15. 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 it's corresponding IP address
Checksum in UDP
When implementing protocols - what stack should be used?
Address Resolution Protocol (ARP)
Race conditions
16. Known - unknown - zero day
Alteration of code
Race conditions
IDS
What categories do vulnerabilities fall into?
17. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
What categories do vulnerabilities fall into?
Boot record infector
The transport layer
COM/Script program infector
18. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
the application layer
NIDS advantages
A blind FTP
HIDS monitor
19. Intrusion detection system - it reports attacks against monitored systems/networks
IDS
Deep packet inspection
EXE program infector
COM/Script program infector
20. 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
Ciphertext
IDS data normalization
Some common UDP ports
Address resolution protocol
21. 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 firewall benefits
Wardriving
Some reasons to use TCP over UDP
Address resolution protocol
22. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
Alteration of code
What's a VLAN
ACK piggybacking
Some other UDP based protocols
23. Connects many WANs - MANs - and LANs - provided via ISP
The different cable categories
Some malware propagation techniques
Internet
The difference in stacks
24. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
The threat vector analysis in defense in depth
Some disadvantages of honeypots
Some firewall benefits
MAN
25. Handles the network address scheme and connectivity of multiple network segments. It handles communication.
Asynchronous Transfer Mode
The network layer
Risk
The OSI Protocol Stack
26. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest
HIDS monitor
3-way handshake
UDP packet headers
A netcat listener
27. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment
Worms
Kismet
Total cell size for asynchronous transfer mode (ATM)
What threats should be protected against - based on threat levels
28. 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
Social engineering
To establish a TCP session
TFTP
The threat vector analysis in defense in depth
29. 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
No State Inspection ACK flag set
The physical layer stack
Network stumbler
Some FTP dangers
30. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0
Internet
Vulnerabilities
Best way to protect wireless networks
What range is a class A network?
31. Work groups that require additional protection are segmented from the rest of the internal organization - restricting access to critical segments - system of VPNs - internal firewall - VLANs and ACLs
The protected enclave to defense in depth
What ways should the crypto key be protected?
The transport layer
The Uniform Protection to defense in depth
32. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
SYN flood
Race conditions
Firewall
The presentation layer
33. Bits of code embedded in programs to quickly gain access at a later time
When setting up a virtual circuit
Some firewall challenges
3-way handshake
Trap door
34. Stateful firewalls maintain state of traffic flows
SQL Slammer Worm
EXE program infector
Best way to protect wireless networks
Stateful firewall
35. OSI
Asynchronous Transfer Mode
Macro virus
When talking about protocols and referencing layers - what stack is used
Stateful firewall
36. Connects the physical part of the network (cables) with the abstract (packets and datastreams)
Risk
The data link layer
Deep packet inspection
ATM work
37. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
MAN
Stateless packet filter
Browsing attack
TFTP
38. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
MAN
The transport layer
NAC
Defense in depth
39. Simple attack done by simply browsing available information that's allowed on a local network.
LAN
What range is a class B network?
UDP packet headers
Browsing attack
40. 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
Rotation?
Alteration of code
Honeypot
SYN flood
41. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
The CIA triad
The protected enclave to defense in depth
Group
The presentation layer
42. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment
Smurf attack
Race conditions
NIDS challenges
NAC
43. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0
Arbitrary substitution
When implementing protocols - what stack should be used?
What range is a class B network?
Some honeypot advantages
44. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment
The OSI Protocol Stack
What threats should be protected against - based on threat levels
Best way to protect wireless networks
PAN
45. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
Overview of TCP
SYN flood
Some Pen Test techniques
Some ways to bypass firewall protections
46. Malware - insider threat - natural disaster - terrorism - pandemic
A network protocol
Stateful firewall
Some common TCP ports
What primary threats should be protected against
47. logic bomb - trojan horse - trap door
Some types of malicious code
Remote maintenance
IDS
Types of viruses
48. 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
UDP packet headers
When talking about protocols and referencing layers - what stack is used
Some network design objectives
The three goals of security
49. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Some firewall challenges
Internet
Race conditions
A netcat listener
50. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS
The physical layer stack
Network stumbler
Some common TCP ports
Macro virus
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