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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. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Bridge
File Integrity checking work
Some firewall challenges
Stateless packet filter
2. 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
Plaintext
NIDS challenges
File integrity checking work
Macro virus
3. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment
Worms
Port scan
To establish a TCP session
Best way to protect wireless networks
4. 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
War Dialing
Some common UDP ports
ATM work
What ways should the crypto key be protected?
5. 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
Best way to protect wireless networks
What range is a class B network?
The conficker worm
6. Protected at rest - protected in transit - secure the key
What ways should the crypto key be protected?
Total cell size for asynchronous transfer mode (ATM)
Some FTP dangers
Address resolution protocol
7. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code
EXE program infector
When setting up a virtual circuit
NIDS advantages
Log monitoring work?
8. 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
Some network design objectives
Some common UDP ports
Rotation?
Some other UDP based protocols
9. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
Asynchronous Transfer Mode
Port scan
the application layer
When implementing protocols - what stack should be used?
10. Personal area network - phone tethering - bluetooth - etc
The four types of events reported by IDS
Defense in depth
PAN
ATM work
11. True positive - false positive - true negative - false negative
The physical layer stack
The data link layer
Proxy or application gateway
The four types of events reported by IDS
12. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
Worms
A blind FTP
Some common UDP ports
CIDR
13. 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
Macro virus
WAN
Some types of malicious code
LAN
14. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring
EXE program infector
Some NIDS topology limitations
Some FTP dangers
Risk
15. Unified data carrying service - replacing from replay and ATM
Plaintext
IDS data normalization
What's a VLAN
Multi protocol label switching
16. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
Some firewall benefits
Bridge
Ack Piggybacking
A netcat listener
17. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
Some ways to bypass firewall protections
Rootkit
ACK piggybacking
Trojan horse
18. 53 bytes - 48 bytes for data - 5 bytes for the header
The different cable categories
Types of viruses
LAN
Total cell size for asynchronous transfer mode (ATM)
19. OSI
Permutation
Vulnerabilities
When talking about protocols and referencing layers - what stack is used
When implementing protocols - what stack should be used?
20. 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
Port scan
Some FTP dangers
Shallow packet inspection
The Uniform Protection to defense in depth
21. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
Integrity of Data
Bus Topology
CIDR
Network stumbler
22. It handles the establishment and maintenance of connections between systems
The session layer
Log monitoring work?
What range is a class B network?
Worms
23. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
Program infector
No State Inspection ACK flag set
Buffer overflow
Plaintext
24. It makes sure the data sent from one side to the other is in a format useful to the other side
LAN
The presentation layer
Stateless packet filter
Some firewall benefits
25. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
Group
The physical layer stack
ACK piggybacking
What range is a class B network?
26. 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 three goals of security
EXE program infector
The transport layer
27. Simple attack done by simply browsing available information that's allowed on a local network.
Vulnerabilities
Remote maintenance
The session layer
Browsing attack
28. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
Address Resolution Protocol (ARP)
The OSI model
ACK piggybacking
Anomaly analysis work
29. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
The network layer
OS Command Injection defenses
Proxy or application gateway
What ways should the crypto key be protected?
30. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Some firewall benefits
TFTP
The OSI Protocol Stack
Alteration of code
31. 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
The transport layer
UDP packet headers
Address Resolution Protocol (ARP)
Hping
32. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures
NIDS advantages
Race conditions
What threats should be protected against - based on threat levels
Social engineering
33. 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.
NIDS advantages
Race conditions
What range is a class A network?
Bridge
34. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
Wardriving
What categories do vulnerabilities fall into?
When setting up a virtual circuit
The transport layer
35. One is for talking - one is for implementing
The difference in stacks
SQL Slammer Worm
Trap door
The four basic approaches to defense in depth
36. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
The OSI Protocol Stack
Remote maintenance
When setting up a virtual circuit
The TCP/IP model
37. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit
Some ways to bypass firewall protections
Datagram length of a UDP packet
EXE program infector
Checksum in UDP
38. Uses a 1 to 1 substitution of arbitrary numbers - given a one character mapping - you cannot determine the key
Arbitrary substitution
SQL Slammer Worm
ATM work
3-way handshake
39. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0
The TCP/IP model
What range is a class A network?
Address resolution protocol
Port scan
40. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
What range is a class A network?
Vulnerabilities
Best way to protect wireless networks
Remote maintenance
41. The practice of sending an ACK inside another packet going to the same destination
The CIA triad
NIDS challenges
ACK piggybacking
Logic bomb
42. Full open - half open (stealth scan) - UDP - Ping
Nmap scanning techniques
What's an easy way to test encryption?
The different cable categories
SYN flood
43. 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
Race conditions
IDS signature analysis work
Honeypot
Buffer overflow
44. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction
NIDS challenges
Some external threat concerns
Risk
MAN
45. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
Firewall
A blind FTP
Rotation?
Kismet
46. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
Some other UDP based protocols
Best way to protect wireless networks
WAN
Brute force
47. A cracking tool inserted into the OS that allows the attacker to do as they please.
Rootkit
Anomaly analysis work
Network stumbler
Hping
48. 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
Brute force
Ack Piggybacking
Some firewall benefits
49. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector
the application layer
Proxy or application gateway
Datagram length of a UDP packet
Types of viruses
50. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
COM/Script program infector
The Information Centric defense in depth
A netcat listener
ACK piggybacking