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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. 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
Program infector
3-way handshake
To close a TCP session
The conficker worm
2. FIN 130 - ACK 131 - FIN 570 - ACK 571
The OSI model
Nmap scanning techniques
To close a TCP session
Deep packet inspection
3. The Practice of sending an ACK inside another packet going to the same destination
Some disadvantages of honeypots
Some malware propagation techniques
Ack Piggybacking
Plaintext
4. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring
Trojan horse
A netcat listener
Some NIDS topology limitations
What range is a class B network?
5. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0
The network layer
What range is a class C network?
Firewall
Some Pen Test techniques
6. Confidentiality - symmetric encryption
Arbitrary substitution
Router
The transport layer
The goals of cryptography
7. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS
Honeyd
File Integrity checking work
Snort
Defense in depth
8. Uniform protection - protected enclaves - information centric - threat vector analysis
The four basic approaches to defense in depth
The five threat vectors
Bridge
Race conditions
9. Considered to be a perimeter device
What threats should be protected against - based on threat levels
The Information Centric defense in depth
Some Pen Test techniques
Router
10. An attempt to gain access by bombarding it with guesses until the password is found.
Bus Topology
The presentation layer
Brute force
The three goals of security
11. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Some firewall benefits
Risk
Some reasons to use UDP over TCP
PAN
12. Provides insight into the tactics - motives - and attacker tools
Some honeypot advantages
To establish a TCP session
NIDS advantages
Nmap
13. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
The threat vector analysis in defense in depth
OS Command Injection defenses
The physical layer stack
Firewall
14. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware
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15. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
The Information Centric defense in depth
When setting up a virtual circuit
File Integrity checking work
DDoS attack
16. Unified data carrying service - replacing from replay and ATM
Multi protocol label switching
To close a TCP session
Permutation
Network stumbler
17. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
Firewall
Deep packet inspection
Some FTP dangers
The OSI Protocol Stack
18. 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
The protected enclave to defense in depth
What ways should the crypto key be protected?
War Dialing
19. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
Group
Remote maintenance
EXE program infector
Some disadvantages of honeypots
20. 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
Asynchronous Transfer Mode
Arbitrary substitution
NIDS advantages
Ciphertext
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
File Integrity checking work
A netcat listener
The protected enclave to defense in depth
22. Trying to ID modems in a telephone exchange that may be susceptible to compromise
The network layer
What threats should be protected against - based on threat levels
War Dialing
Network stumbler
23. 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
Remote maintenance
The protected enclave to defense in depth
The conficker worm
Stateless packet filter
24. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
What categories do vulnerabilities fall into?
Some other UDP based protocols
Asynchronous Transfer Mode
Bridge
25. True positive - false positive - true negative - false negative
The four types of events reported by IDS
Macro virus
Anomaly analysis work
Some FTP dangers
26. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters
The physical layer stack
Rotation?
The goals of cryptography
What primary threats should be protected against
27. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Address Resolution Protocol (ARP)
Address resolution protocol
Overview of TCP
Some disadvantages of honeypots
28. Confidentiality - integrity - availability
The CIA triad
LAN
The session layer
OS Command Injection defenses
29. 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
What range is a class B network?
When implementing protocols - what stack should be used?
Program infector
The three goals of security
30. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
Boot record infector
Some common TCP ports
Some ways to bypass firewall protections
Some disadvantages of honeypots
31. One is for talking - one is for implementing
Multi protocol label switching
Types of ATM virtual circuits
To establish a TCP session
The difference in stacks
32. 53 bytes - 48 bytes for data - 5 bytes for the header
Defense in depth
Total cell size for asynchronous transfer mode (ATM)
Firewall
Some malware capabilities
33. 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
Smurf attack
The protected enclave to defense in depth
WAN
A blind FTP
34. Malware - insider threat - natural disaster - terrorism - pandemic
Types of ATM virtual circuits
What primary threats should be protected against
CIDR
Bridge
35. 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
The protected enclave to defense in depth
Some other UDP based protocols
Ack Piggybacking
A network protocol
36. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
The protected enclave to defense in depth
Router
OS Command Injection defenses
Remote maintenance
37. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.
Race conditions
Total cell size for asynchronous transfer mode (ATM)
DDoS attack
Checksum in UDP
38. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Trap door
Anomaly analysis work
Datagram length of a UDP packet
TFTP
39. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
The presentation layer
File Integrity checking work
A netmask
Trojan horse
40. 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
To establish a TCP session
Types of ATM virtual circuits
Snort
OS Command Injection defenses
41. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
Nmap scanning techniques
When setting up a virtual circuit
Log monitoring work?
The transport layer
42. 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
Address resolution protocol
CIDR
Snort
Some other UDP based protocols
43. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
Permutation
Nmap scanning techniques
MAN
Firewall
44. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Program infector
Proxy or application gateway
Defense in depth
EXE program infector
45. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK
The TCP/IP model
3-way handshake
COM/Script program infector
Hping
46. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored
Rotation?
Log monitoring work?
3-way handshake
IDS not
47. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
File integrity checking work
A blind FTP
Anomaly analysis work
Firewall
48. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
Parasitic malware
Network stumbler
Risk
Port scan
49. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535
Logic bomb
Some malware propagation techniques
Stateful firewall
Datagram length of a UDP packet
50. Connects many WANs - MANs - and LANs - provided via ISP
Some common UDP ports
SYN flood
Internet
Proxy or application gateway