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GIAC
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Subjects
:
certifications
,
giac
,
it-skills
Instructions:
Answer 50 questions in 15 minutes.
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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. Considered to be a perimeter device
TFTP
Permutation
Router
Alteration of code
2. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment
NAC
Honeypot
3-way handshake
OS Command Injection defenses
3. Connects the physical part of the network (cables) with the abstract (packets and datastreams)
The data link layer
When implementing protocols - what stack should be used?
The four basic approaches to defense in depth
Network stumbler
4. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
A blind FTP
UDP packet headers
TFTP
Vulnerabilities
5. It makes sure the data sent from one side to the other is in a format useful to the other side
The protected enclave to defense in depth
NIDS advantages
IDS signature analysis work
The presentation layer
6. Unified data carrying service - replacing from replay and ATM
Log monitoring work?
Group
Multi protocol label switching
DDoS attack
7. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
The data link layer
Router
the application layer
Some ways to bypass firewall protections
8. A cracking tool inserted into the OS that allows the attacker to do as they please.
Best way to protect wireless networks
What's an easy way to test encryption?
Router
Rootkit
9. Uses a 1 to 1 substitution of arbitrary numbers - given a one character mapping - you cannot determine the key
What threats should be protected against - based on threat levels
Some malware capabilities
Arbitrary substitution
War Dialing
10. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
IDS
When setting up a virtual circuit
Integrity of Data
NAC
11. Simplest form of a research honeypot - useful in identifying nature of TCP scans - allows attacker to complete 3-way handshake - listens on a defined port - logs incoming requests for analysis
What ways should the crypto key be protected?
Overview of TCP
To establish a TCP session
A netcat listener
12. 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.
Address resolution protocol
Smurf attack
The Information Centric defense in depth
ATM work
13. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
UDP packet headers
Some firewall challenges
Ack Piggybacking
The transport layer
14. Attacks systems through known vulnerabilities - automatically scans for more systems to attack - lowers system defenses - installs rootkit or root shell - opens up back doors - self contained malware that can copy itself
Permutation
Worms
Multi protocol label switching
The Uniform Protection to defense in depth
15. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution
Permutation
Internet
Some malware propagation techniques
The session layer
16. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.
Port scan
COM/Script program infector
DDoS attack
When talking about protocols and referencing layers - what stack is used
17. fast - with little fidelity - examines header information and limited payload data
The four basic approaches to defense in depth
Shallow packet inspection
A netcat listener
Risk
18. 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
the application layer
File integrity checking work
Types of ATM virtual circuits
19. Provides insight into the tactics - motives - and attacker tools
Ack Piggybacking
Some honeypot advantages
Stateful firewall
Types of ATM virtual circuits
20. Switches along the path can be requested to allocate the desired amount of bandwidth. If the circuit has the required bandwidth - the circuit is set up.
The five threat vectors
The session layer
ACK piggybacking
When setting up a virtual circuit
21. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
Port scan
Bridge
The Uniform Protection to defense in depth
Trojan horse
22. 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
Internet
Some reasons to use UDP over TCP
A network protocol
UDP packet headers
23. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone
Remote maintenance
HIDS monitor
Router
MAN
24. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS
Trojan horse
The presentation layer
Some common UDP ports
The TCP/IP model
25. Personal area network - phone tethering - bluetooth - etc
PAN
The different cable categories
Boot record infector
What range is a class C network?
26. An attempt to gain access by bombarding it with guesses until the password is found.
The threat vector analysis in defense in depth
The transport layer
Shallow packet inspection
Brute force
27. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP
What's an easy way to test encryption?
Some other UDP based protocols
The presentation layer
DDoS attack
28. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring
Some NIDS topology limitations
SYN flood
Address resolution protocol
PAN
29. Bits of code embedded in programs to quickly gain access at a later time
Defense in depth
Trap door
Ciphertext
The Uniform Protection to defense in depth
30. 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
File Integrity checking work
Router
Group
The different cable categories
31. 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
LAN
Remote maintenance
Trojan horse
The conficker worm
32. Going around with equipment to detect wireless networks
Wardriving
Remote maintenance
Some external threat concerns
Datagram length of a UDP packet
33. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering
Some Pen Test techniques
the application layer
Some common UDP ports
Alteration of code
34. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
The TCP/IP model
Hping
Some firewall benefits
Social engineering
35. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
Hping
The OSI Protocol Stack
Alteration of code
IDS
36. Full open - half open (stealth scan) - UDP - Ping
Buffer overflow
Nmap scanning techniques
NIDS advantages
Integrity of Data
37. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
What ways should the crypto key be protected?
Some external threat concerns
Some disadvantages of honeypots
To close a TCP session
38. 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
When implementing protocols - what stack should be used?
Address resolution protocol
MAN
Types of viruses
39. Slow - requires stateful data tracking - inspects all fields - including variable-length fields
Deep packet inspection
Address Resolution Protocol (ARP)
SYN flood
DDoS 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
Trap door
Parasitic malware
SYN flood
Types of viruses
41. 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's a VLAN
When implementing protocols - what stack should be used?
the application layer
Some common UDP ports
42. 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
To close a TCP session
Bus Topology
Some malware capabilities
Permutation
43. 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
The presentation layer
File integrity checking work
Some honeypot advantages
44. Prepends to the beginning of the file and gains control when the first instruction of the infected COM file is executed - appending to the end - virus writes its payload to the end and inserts jump instruction as the first instruction - which execute
COM/Script program infector
Some FTP dangers
Total cell size for asynchronous transfer mode (ATM)
Some honeypot advantages
45. 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
Logic bomb
Defense in depth
Types of ATM virtual circuits
Snort
46. Infects MBR - no network spreading potential
War Dialing
Boot record infector
Stateful firewall
What range is a class B network?
47. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.
TFTP
The OSI model
A netmask
Hubs
48. Protected at rest - protected in transit - secure the key
Address resolution protocol
Nmap scanning techniques
What ways should the crypto key be protected?
The four basic approaches to defense in depth
49. 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
Some common TCP ports
The OSI Protocol Stack
Some types of malicious code
Address Resolution Protocol (ARP)
50. logic bomb - trojan horse - trap door
DDoS attack
Bus Topology
Some network design objectives
Some types of malicious code
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