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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. It makes sure the data sent from one side to the other is in a format useful to the other side
The three goals of security
The transport layer
TFTP
The presentation layer
2. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Proxy or application gateway
Stateful firewall
Bridge
The four types of events reported by IDS
3. 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
Rotation?
The network layer
Checksum in UDP
4. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction
Network stumbler
Overview of TCP
Risk
Deep packet inspection
5. Malware - insider threat - natural disaster - terrorism - pandemic
What primary threats should be protected against
Stateful firewall
When implementing protocols - what stack should be used?
Log monitoring work?
6. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
Worms
Some network design objectives
The threat vector analysis in defense in depth
Firewall
7. It handles the establishment and maintenance of connections between systems
Social engineering
The session layer
The OSI model
HIDS monitor
8. 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
Ack Piggybacking
Macro virus
Hping
When setting up a virtual circuit
9. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored
The network layer
Some reasons to use TCP over UDP
Log monitoring work?
Risk
10. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0
What range is a class C network?
DDoS attack
Types of ATM virtual circuits
Types of viruses
11. Simple attack done by simply browsing available information that's allowed on a local network.
Nmap scanning techniques
3-way handshake
Browsing attack
COM/Script program infector
12. Provides insight into the tactics - motives - and attacker tools
Firewall
Address resolution protocol
Risk
Some honeypot advantages
13. Considered to be a perimeter device
Types of viruses
Kismet
The physical layer stack
Router
14. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host
Multi protocol label switching
A netmask
The protected enclave to defense in depth
Remote maintenance
15. 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
Honeyd
Social engineering
PAN
Bridge
16. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer
The TCP/IP model
Alteration of code
Trojan horse
Log monitoring work?
17. 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
Wardriving
A blind FTP
CIDR
18. 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 four types of events reported by IDS
Shallow packet inspection
The five threat vectors
The protected enclave to defense in depth
19. 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
Switches
The transport layer
Types of ATM virtual circuits
Some ways to bypass firewall protections
20. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
UDP packet headers
The goals of cryptography
Program infector
Router
21. Bits of code embedded in programs to quickly gain access at a later time
Trap door
Some NIDS topology limitations
The protected enclave to defense in depth
Macro virus
22. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
23. An FTP that allows downloads only if the user knows the exact name of the file they're looking for
A blind FTP
A netmask
LAN
The five threat vectors
24. Full open - half open (stealth scan) - UDP - Ping
Nmap scanning techniques
Trap door
MAN
ACK piggybacking
25. Attaches itself to existing program files and activated when the exe is launched
Program infector
Log monitoring work?
The conficker worm
NIDS challenges
26. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS
Some common TCP ports
Shallow packet inspection
MAN
Program infector
27. 53 bytes - 48 bytes for data - 5 bytes for the header
Honeypot
Total cell size for asynchronous transfer mode (ATM)
Arbitrary substitution
The OSI model
28. fast - with little fidelity - examines header information and limited payload data
Overview of TCP
Some reasons to use UDP over TCP
Shallow packet inspection
Ciphertext
29. 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
Address Resolution Protocol (ARP)
Arbitrary substitution
Some common TCP ports
Some ways to bypass firewall protections
30. logic bomb - trojan horse - trap door
The data link layer
Rootkit
COM/Script program infector
Some types of malicious code
31. 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
Some external threat concerns
The OSI Protocol Stack
File integrity checking work
Some honeypot advantages
32. Uses flow control to handle network congestion - can send larger amounts of data per packet - has guaranteed delivery of transmitted data - better protection against spoofing - reduces need for error checking at higher OSI layers
To establish a TCP session
Some malware capabilities
What range is a class C network?
Some reasons to use TCP over UDP
33. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired
Buffer overflow
Logic bomb
The session layer
A netmask
34. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.
Race conditions
DDoS attack
CIDR
The four basic approaches to defense in depth
35. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection
To establish a TCP session
Some firewall benefits
Honeyd
Best way to protect wireless networks
36. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.
Some firewall challenges
Some malware capabilities
Port scan
Hubs
37. The practice of sending an ACK inside another packet going to the same destination
SQL Slammer Worm
ACK piggybacking
Nmap
IDS signature analysis work
38. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application
What's a VLAN
The OSI Protocol Stack
Boot record infector
the application layer
39. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process
Macro virus
3-way handshake
Nmap scanning techniques
Denial of service
40. Handles transmissions across the physical media like wires - fiber - etc
Some NIDS topology limitations
The physical layer stack
What ways should the crypto key be protected?
The difference in stacks
41. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
Some firewall challenges
Remote maintenance
NIDS advantages
Trap door
42. 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 network design objectives
Asynchronous Transfer Mode
To establish a TCP session
43. 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
The data link layer
MAN
The conficker worm
Arbitrary substitution
44. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit
To close a TCP session
Some FTP dangers
The TCP/IP model
Checksum in UDP
45. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures
Stateful firewall
Trap door
The OSI model
NIDS advantages
46. deployment challenges including topology and access limitations - analyzing encrypted traffic - quantity vs. quality of signatures - performance limitations with extensive analysis techniques - very costly for proper management
NIDS challenges
Some other UDP based protocols
The four basic approaches to defense in depth
Worms
47. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0
Total cell size for asynchronous transfer mode (ATM)
What range is a class B network?
What ways should the crypto key be protected?
Snort
48. 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
Overview of TCP
A network protocol
Boot record infector
Best way to protect wireless networks
49. Hash Authentication - asymmetric - non repudiation - digital signature - hash + asymmetry
Integrity of Data
Permutation
SQL Slammer Worm
The CIA triad
50. Going around with equipment to detect wireless networks
The protected enclave to defense in depth
Social engineering
Bridge
Wardriving