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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. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.
Stateless packet filter
Some other UDP based protocols
The goals of cryptography
Group
2. Syn - Syn/Ack - Ack
To establish a TCP session
The physical layer stack
Hping
Some Pen Test techniques
3. 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
Logic bomb
SQL Slammer Worm
The physical layer stack
When implementing protocols - what stack should be used?
4. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
Integrity of Data
The four basic approaches to defense in depth
UDP packet headers
SQL Slammer Worm
5. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
Vulnerabilities
Some firewall challenges
Denial of service
NIDS challenges
6. Trying to ID modems in a telephone exchange that may be susceptible to compromise
Asynchronous Transfer Mode
OS Command Injection defenses
War Dialing
Types of ATM virtual circuits
7. Confidentiality - integrity - availability
What's an easy way to test encryption?
What threats should be protected against - based on threat levels
Some NIDS topology limitations
The CIA triad
8. Simple attack done by simply browsing available information that's allowed on a local network.
Denial of service
The physical layer stack
Deep packet inspection
Browsing attack
9. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Logic bomb
TFTP
Bus Topology
What's an easy way to test encryption?
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 data normalization
Some firewall challenges
Some Pen Test techniques
Total cell size for asynchronous transfer mode (ATM)
11. OSI
The conficker worm
What primary threats should be protected against
Total cell size for asynchronous transfer mode (ATM)
When talking about protocols and referencing layers - what stack is used
12. 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.
Parasitic malware
Denial of service
Nmap scanning techniques
Race conditions
13. -Malicious code might execute destructive overwrite to hard disks -Malicious mas mailing code might expose sensitive information to the internet - web server compromise might expose organization to ridicule - Web server compromise might expose custom
Checksum in UDP
The Information Centric defense in depth
A blind FTP
Some external threat concerns
14. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Checksum in UDP
The conficker worm
Alteration of code
Some types of malicious code
15. Uniform protection - protected enclaves - information centric - threat vector analysis
File Integrity checking work
When talking about protocols and referencing layers - what stack is used
What's an easy way to test encryption?
The four basic approaches to defense in depth
16. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline
Router
Anomaly analysis work
Boot record infector
LAN
17. 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
Types of ATM virtual circuits
The network layer
Bus Topology
File integrity checking work
18. Handles the network address scheme and connectivity of multiple network segments. It handles communication.
Kismet
The network layer
What ways should the crypto key be protected?
Some Pen Test techniques
19. Connects the physical part of the network (cables) with the abstract (packets and datastreams)
The data link layer
PAN
Macro virus
The difference in stacks
20. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host
Address resolution protocol
Bridge
CIDR
Router
21. A cracking tool inserted into the OS that allows the attacker to do as they please.
File integrity checking work
Rootkit
The network layer
Some common TCP ports
22. The practice of sending an ACK inside another packet going to the same destination
Some external threat concerns
Alteration of code
ACK piggybacking
The presentation layer
23. 53 bytes - 48 bytes for data - 5 bytes for the header
SQL Slammer Worm
Some malware propagation techniques
Total cell size for asynchronous transfer mode (ATM)
WAN
24. 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
Some reasons to use TCP over UDP
Stateless packet filter
Macro virus
What threats should be protected against - based on threat levels
25. Bits of code embedded in programs to quickly gain access at a later time
Bus Topology
Trap door
IDS signature analysis work
What range is a class C network?
26. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive
HIDS monitor
Plaintext
Some malware propagation techniques
IDS not
27. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
Network stumbler
the application layer
The transport layer
Parasitic malware
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
The four types of events reported by IDS
Honeyd
SQL Slammer Worm
Social engineering
29. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
Logic bomb
A network protocol
the application layer
Denial of service
30. True positive - false positive - true negative - false negative
The four types of events reported by IDS
Brute force
ACK piggybacking
Some reasons to use TCP over UDP
31. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
Permutation
Macro virus
Trojan horse
Some ways to bypass firewall protections
32. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
What primary threats should be protected against
Asynchronous Transfer Mode
The difference in stacks
SQL Slammer Worm
33. Intrusion detection system - it reports attacks against monitored systems/networks
Hubs
Nmap scanning techniques
Plaintext
IDS
34. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Some disadvantages of honeypots
The Uniform Protection to defense in depth
A network protocol
IDS
35. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
Bridge
Ciphertext
Datagram length of a UDP packet
What range is a class C network?
36. Connects many WANs - MANs - and LANs - provided via ISP
Internet
Some common TCP ports
A netmask
Program infector
37. Considered to be a perimeter device
OS Command Injection defenses
Overview of TCP
Router
What threats should be protected against - based on threat levels
38. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0
What range is a class B network?
Ciphertext
NIDS advantages
The OSI Protocol Stack
39. 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 four basic approaches to defense in depth
COM/Script program infector
Permutation
40. 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
Macro virus
Trojan horse
41. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
Some disadvantages of honeypots
OS Command Injection defenses
LAN
Firewall
42. Confidentiality - symmetric encryption
A network protocol
Ciphertext
The goals of cryptography
NIDS challenges
43. 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
File integrity checking work
The four types of events reported by IDS
Anomaly analysis work
IDS signature analysis work
44. Stateful firewalls maintain state of traffic flows
Log monitoring work?
Stateful firewall
Risk
Some common TCP ports
45. Full open - half open (stealth scan) - UDP - Ping
Bridge
Nmap scanning techniques
Trap door
Some honeypot advantages
46. 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
Smurf attack
Some malware propagation techniques
Some NIDS topology limitations
ATM work
47. 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
Kismet
The different cable categories
Rootkit
Proxy or application gateway
48. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
Some types of malicious code
UDP packet headers
Nmap scanning techniques
Group
49. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution
Permutation
What ways should the crypto key be protected?
What range is a class A network?
Browsing attack
50. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP
Smurf attack
TFTP
Port scan
Switches