Test your basic knowledge |

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. Resource exhaustion like DDoS or fork attack - unexpected input value the machine does not know how to process






2. Connects the physical part of the network (cables) with the abstract (packets and datastreams)






3. -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






4. Confidentiality - integrity - availability






5. flags anomalous conditions in traffic on the network - requires understanding on what is normal - bases good traffic as a baseline






6. Network traffic to the host - typically listens on all interface - uses signature analysis to identify events of interest






7. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






8. Good for multimedia - can use small single packets - multicasting is required - speed is the highest priority






9. Take the file and try to compress it. If it compresses - it means there is a pattern and it's more easily crackable

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10. 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






11. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






12. keeps the same letters - but changes the position within the text - easy to break - can be combined with substitution






13. packet filter firewalls rely on TCP flags to determine connection state. Attacker can send ACK packets only to bypass firewall.






14. Handles transmissions across the physical media like wires - fiber - etc






15. Simple attack done by simply browsing available information that's allowed on a local network.






16. Confidentiality - symmetric encryption






17. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






18. Physical layer - Data link layer - Network Layer - Transport Layer - Session Layer - Presentation Layer - Application Layer






19. 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.






20. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






21. Provides insight into the tactics - motives - and attacker tools






22. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






23. logic bomb - trojan horse - trap door






24. 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






25. An appliance that controls access between public internet and a companies private network - or between a PC NIC and the rest of the PC.






26. 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






27. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






28. 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






29. A cracking tool inserted into the OS that allows the attacker to do as they please.






30. The Practice of sending an ACK inside another packet going to the same destination






31. Allows admins to remotely access a system for troubleshooting. - E.g VNC - GoToMyPc - PC Anywhere






32. Attaches itself to existing program files and activated when the exe is launched






33. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






34. Provides insight into traffic on the network - help detect problems with network operations - provides auditing for other security measures






35. Switches networks make it difficult to monitor traffic in promiscuous mode - topology must be able to support traffic aggregation for monitoring






36. Used for connecting two physical segments of a network - segments traffic - breaks up collision domains - not generally used because of switches






37. 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






38. Considered to be a perimeter device






39. 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






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






41. 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






42. Identify critical assets and provide layered protection - data is accessed by applications - applications reside on hosts - hosts operate on networks






43. 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.






44. Message in its encrypted form






45. A sends a SYN packet to B - B acknowledges with a SYN/ACK - A replies with ACK






46. Protects internal/external systems from attack - filters communications based on content - performs NAT - encrypts communications for VPN - logging to aid in intrusion detection






47. local area network - small network confined to small location - all equipment owned by a single entity - vulnerable to inside threats and logic bombs






48. CIDR is a shorthand way of specifying which portion of the address is the network - and which portion is the host






49. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






50. Four layers - Network Layer - Internet Layer - Transport Layer - Application layer