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






2. 1. physical 2. data 3. network 4. transport 5. session 6. presentation 7. application






3. Worms and Wireless - modems - tunnel anything through HTTP - social engineering






4. Unencrypted message in its original form






5. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored






6. It interacts with the application layer to determine which network services will be required






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






8. 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.






9. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






10. Most common approach - firewall - VPN - intrusion detection - AV - disk encryption - all parts of the organization receive equal protection - particularly vulnerable to malicious inside attacks






11. removable media - email attachments - web browsing - social networking - network vulnerabilities - IM applications - p2p






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






13. Confidentiality - symmetric encryption






14. size is whatever the length of the UDP portion of the packet. Could be as large as 65 -535






15. It makes sure the data sent from one side to the other is in a format useful to the other side






16. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






17. Network scanner.






18. open source tool for monitoring - can be used as a NIDS - has quick updates and flexibility for custom rules






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






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.






21. 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






22. Poor programming without error checking can allow commands to be run in an input field. This can point to a command further in the buffer that will execute the attacker's payload.






23. Isolates systems when they initially connect to the network - allows systems to be scanned and checked prior to being put on a trusted segment






24. It handles the establishment and maintenance of connections between systems






25. 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






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






27. 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






28. 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






29. 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






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






31. Stateful firewalls maintain state of traffic flows






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






33. 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






34. 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






35. 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






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






37. Protected at rest - protected in transit - secure the key






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






39. Going around with equipment to detect wireless networks






40. Trivial File Transfer Protocol - method to transfer files from one device to another without needing authentication






41. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






42. destruction of data - leaking confidential information - providing backdoor access






43. Threat requires a vector to cross the vulnerability - stop the ability of the threat to use the vector






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






45. 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






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






47. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






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






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






50. 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