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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. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535
The threat vector analysis in defense in depth
The transport layer
Kismet
Datagram length of a UDP packet
2. Personal area network - phone tethering - bluetooth - etc
Some ways to bypass firewall protections
PAN
Parasitic malware
The Uniform Protection to defense in depth
3. Intrusion detection system - it reports attacks against monitored systems/networks
Shallow packet inspection
IDS
Proxy or application gateway
TFTP
4. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.
What threats should be protected against - based on threat levels
Group
Some external threat concerns
What primary threats should be protected against
5. 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
When implementing protocols - what stack should be used?
UDP packet headers
Datagram length of a UDP packet
Checksum in UDP
6. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
Risk
Some firewall benefits
Denial of service
To establish a TCP session
7. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.
Alteration of code
Stateless packet filter
The data link layer
War Dialing
8. destruction of data - leaking confidential information - providing backdoor access
MAN
DDoS attack
Address Resolution Protocol (ARP)
Some malware capabilities
9. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability
Denial of service
What range is a class A network?
Shallow packet inspection
Some disadvantages of honeypots
10. Application layer attacks may get through - dialup - VPN - extranet connections may bypass firewalls
When implementing protocols - what stack should be used?
Some firewall challenges
IDS not
What's a VLAN
11. Infects MBR - no network spreading potential
File integrity checking work
Boot record infector
Port scan
Vulnerabilities
12. Going around with equipment to detect wireless networks
CIDR
UDP packet headers
Wardriving
Hping
13. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit
Some firewall challenges
Checksum in UDP
When setting up a virtual circuit
Parasitic malware
14. Considered to be a perimeter device
Router
Deep packet inspection
Some firewall challenges
COM/Script program infector
15. The practice of sending an ACK inside another packet going to the same destination
Alteration of code
Shallow packet inspection
ACK piggybacking
Risk
16. An attempt to gain access by bombarding it with guesses until the password is found.
Some reasons to use UDP over TCP
Network stumbler
Asynchronous Transfer Mode
Brute force
17. Worms and Wireless - modems - tunnel anything through HTTP - social engineering
NAC
The OSI Protocol Stack
Some ways to bypass firewall protections
Some firewall benefits
18. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks
Alteration of code
Risk
When talking about protocols and referencing layers - what stack is used
The Uniform Protection to defense in depth
19. 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.
When setting up a virtual circuit
Proxy or application gateway
Some firewall benefits
War Dialing
20. 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.
Race conditions
What ways should the crypto key be protected?
LAN
Denial of service
21. 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
Address Resolution Protocol (ARP)
The transport layer
COM/Script program infector
File Integrity checking work
22. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
A blind FTP
Network stumbler
Best way to protect wireless networks
The Information Centric defense in depth
23. Program disguised as something helpful - only to perform actions the user did not intend. Opening ports - installing other programs - etc.
What primary threats should be protected against
The transport layer
Trojan horse
When setting up a virtual circuit
24. 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
Stateful firewall
Bridge
Brute force
The conficker worm
25. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication
Remote maintenance
TFTP
Nmap
Some NIDS topology limitations
26. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
A network protocol
OS Command Injection defenses
The presentation layer
Overview of TCP
27. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.
COM/Script program infector
Firewall
File integrity checking work
the application layer
28. Unified data carrying service - replacing from replay and ATM
Snort
Multi protocol label switching
Risk
Switches
29. Stateful firewalls maintain state of traffic flows
File Integrity checking work
Stateful firewall
Social engineering
Some types of malicious code
30. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
SQL Slammer Worm
Stateful firewall
A blind FTP
PAN
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 its corresponding IP address
Address resolution protocol
Best way to protect wireless networks
The TCP/IP model
Wardriving
32. 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
A netmask
Network stumbler
WAN
Some types of malicious code
33. Unencrypted message in its original form
Multi protocol label switching
Plaintext
Some firewall challenges
Ciphertext
34. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment
What ways should the crypto key be protected?
What threats should be protected against - based on threat levels
NAC
3-way handshake
35. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end
Some network design objectives
Stateless packet filter
The transport layer
Shallow packet inspection
36. A hash is produced when applied to a monitored file. The hash always generates the same value unless a change was made. HIDS software checks the hashes of monitored files and if a change is found - analyst is notified. - ie: tripwire
The difference in stacks
The goals of cryptography
Some disadvantages of honeypots
File Integrity checking work
37. Network scanner.
Parasitic malware
Checksum in UDP
Nmap
Nmap scanning techniques
38. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in
The goals of cryptography
Trojan horse
Ciphertext
Overview of TCP
39. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously
Hping
Nmap scanning techniques
Some honeypot advantages
Some common UDP ports
40. Malware - insider threat - natural disaster - terrorism - pandemic
Some malware capabilities
SQL Slammer Worm
Nmap
What primary threats should be protected against
41. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
Honeypot
Types of ATM virtual circuits
The TCP/IP model
Checksum in UDP
42. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS
File Integrity checking work
A blind FTP
Some common TCP ports
The difference in stacks
43. Intellectual property - business goals - validated data - historical
Hubs
What threats should be protected against - based on threat levels
Bus Topology
Ack Piggybacking
44. 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
Worms
Router
What's an easy way to test encryption?
IDS signature analysis work
45. Attaches itself to existing program files and activated when the exe is launched
Program infector
Some malware propagation techniques
The data link layer
Nmap scanning techniques
46. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
Nmap scanning techniques
Ciphertext
When setting up a virtual circuit
The OSI Protocol Stack
47. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority
Some reasons to use UDP over TCP
The protected enclave to defense in depth
The presentation layer
To establish a TCP session
48. 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
The presentation layer
What range is a class C network?
Some firewall benefits
Asynchronous Transfer Mode
49. 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
Permutation
Some reasons to use TCP over UDP
Some network design objectives
Proxy or application gateway
50. 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
A netcat listener
Trap door
When talking about protocols and referencing layers - what stack is used