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. War dialing - war driving - Sniffing - eavesdropping - dumpster diving - social engineering






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






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






4. 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.






5. Full open - half open (stealth scan) - UDP - Ping






6. 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






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






8. Netmasks or subnets provide a method for identifying what portion of an address is the network - and what portion is the host






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






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






11. It interacts with data and prepares it to be transmitted across the network. It ensures reliable connectivity from end-to-end






12. Malware - insider threat - natural disaster - terrorism - pandemic






13. Metropolitan area network - spans across city or town - larger than a LAN - uses fiber for backbone






14. 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






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






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






17. A spoofed IP is used to send a SYN to the target. It then responds with a SYN/ACK that never receives the final ACK to complete the handshake. This occupies a portion of the target's pre-established buffer for TCP and can prevent the target from acce






18. Network scanner.






19. FIN 130 - ACK 131 - FIN 570 - ACK 571






20. Going around with equipment to detect wireless networks






21. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






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






24. Connection oriented - before systems can communicate over an ATM network - they must establish a virtual circuit between each other - this can span across multiple ATM switches that also handle communications for other systems - at the end of the con






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






26. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






27. Considered to be a perimeter device






28. 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






29. Relies on executable code insertion and user interaction to spread






30. Bits of code embedded in programs to quickly gain access at a later time






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






32. Uses a 1 to 1 substitution of characters - rotate the alphabet by 'n' number of characters - rot+X means rotate the letters X characters






33. An FTP that allows downloads only if the user knows the exact name of the file they're looking for






34. Handles the network address scheme and connectivity of multiple network segments. It handles communication.






35. 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






36. UDP based infection - infected through vulnerability in SQL server - caused DoS on saturated networks






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






38. 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






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






40. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






41. Confidentiality - integrity - availability






42. 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






43. An attempt to gain access by bombarding it with guesses until the password is found.






44. 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.






45. 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






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






47. When someone has compromised the integrity of data or a program. Allows attackers to create backdoors.






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






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






50. Weakness in a system - inherent in a complex system - majority are due to poor coding - gateway by which threats are manifested