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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. 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 conficker worm
SYN flood
Program infector
2. low interaction production honeypot - network daemon that can simulate other hosts - each host can appear as a different OS
What range is a class A network?
Some types of malicious code
The threat vector analysis in defense in depth
Honeyd
3. Network scanner.
SYN flood
Nmap
The four types of events reported by IDS
Stateless packet filter
4. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.
Total cell size for asynchronous transfer mode (ATM)
Checksum in UDP
The protected enclave to defense in depth
No State Inspection ACK flag set
5. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested
Vulnerabilities
Remote maintenance
Program infector
A netcat listener
6. Handles transmissions across the physical media like wires - fiber - etc
Smurf attack
Some FTP dangers
The goals of cryptography
The physical layer stack
7. 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
Integrity of Data
The different cable categories
Some other UDP based protocols
The network layer
8. 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
File integrity checking work
The three goals of security
Some network design objectives
The OSI model
9. 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
A netmask
Honeyd
The four basic approaches to defense in depth
10. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input
Honeypot
OS Command Injection defenses
Nmap
Some firewall challenges
11. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector
Some firewall challenges
Types of viruses
Wardriving
The four types of events reported by IDS
12. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK
3-way handshake
Social engineering
Brute force
Some malware capabilities
13. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host
Multi protocol label switching
War Dialing
LAN
CIDR
14. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment
Best way to protect wireless networks
Wardriving
Some reasons to use UDP over TCP
Permutation
15. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs
LAN
Wardriving
Some common UDP ports
The data link layer
16. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector
NAC
The four basic approaches to defense in depth
The threat vector analysis in defense in depth
The four types of events reported by IDS
17. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks
The threat vector analysis in defense in depth
ATM work
Remote maintenance
SQL Slammer Worm
18. One is for talking - one is for implementing
The data link layer
The difference in stacks
The TCP/IP model
Social engineering
19. Relies on executable code insertion and user interaction to spread
Snort
Parasitic malware
Port scan
The CIA triad
20. 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
Nmap
The conficker worm
When implementing protocols - what stack should be used?
The three goals of security
21. Simple attack done by simply browsing available information that's allowed on a local network.
Stateful firewall
Browsing attack
Address Resolution Protocol (ARP)
COM/Script program infector
22. Personal area network - phone tethering - bluetooth - etc
Hping
War Dialing
Logic bomb
PAN
23. 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
File integrity checking work
Permutation
Worms
Arbitrary substitution
24. 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
Buffer overflow
Log monitoring work?
Ack Piggybacking
25. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port
The four types of events reported by IDS
Switches
Address resolution protocol
Some disadvantages of honeypots
26. 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
When setting up a virtual circuit
Some NIDS topology limitations
the application layer
27. Multiple levels of protection must be deployed - an exercie in detection - measures must be across a wide range of controls - compromises happen when people leave sites - risk - CIA triad - strategies
Some firewall benefits
Some honeypot advantages
Defense in depth
Router
28. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks
Network stumbler
The Information Centric defense in depth
Multi protocol label switching
The CIA triad
29. A system resource that has no legitimate purpose or reason for someone to connect to it - its purpose is to draw in attackers to understand how they break into a system
The goals of cryptography
the application layer
The four basic approaches to defense in depth
Honeypot
30. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found
IDS signature analysis work
The data link layer
The four basic approaches to defense in depth
Rotation?
31. 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
ATM work
Honeyd
WAN
To establish a TCP session
32. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code
The presentation layer
NAC
EXE program infector
Port scan
33. Full open - half open (stealth scan) - UDP - Ping
No State Inspection ACK flag set
A network protocol
Deep packet inspection
Nmap scanning techniques
34. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere
Shallow packet inspection
Wardriving
Remote maintenance
Nmap scanning techniques
35. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches
Some disadvantages of honeypots
The transport layer
Bridge
Network stumbler
36. destruction of data - leaking confidential information - providing backdoor access
Some malware capabilities
Kismet
the application layer
Some NIDS topology limitations
37. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum
ACK piggybacking
Some malware capabilities
UDP packet headers
The different cable categories
38. The Practice of sending an ACK inside another packet going to the same destination
The Information Centric defense in depth
Some reasons to use UDP over TCP
Ack Piggybacking
PAN
39. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering
Worms
The conficker worm
Some Pen Test techniques
When setting up a virtual circuit
40. 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
Logic bomb
Address resolution protocol
The data link layer
EXE program infector
41. 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
Some honeypot advantages
A netmask
COM/Script program infector
Some external threat concerns
42. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above
Nmap
Proxy or application gateway
Total cell size for asynchronous transfer mode (ATM)
Some common TCP ports
43. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS
The Information Centric defense in depth
Some common TCP ports
A netcat listener
Hping
44. 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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45. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.
Trojan horse
Alteration of code
Some firewall challenges
PAN
46. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment
Worms
The different cable categories
The goals of cryptography
Kismet
47. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0
What range is a class C network?
the application layer
IDS not
Permutation
48. Confidentiality - integrity - availability
Nmap
Program infector
The CIA triad
IDS not
49. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously
SYN flood
What range is a class A network?
Hping
Plaintext
50. Bits of code embedded in programs to quickly gain access at a later time
Social engineering
Bridge
Router
Trap door