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. 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






2. One is for talking - one is for implementing






3. Most commonly used transport protocol today - ensures reliable packet delivery - has error handling built in






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






5. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






6. 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






7. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






10. 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






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






12. Means multiple iterations won't matter. If you encrypt with a key - then re-encrypt - it's the same as using one key.






13. Known - unknown - zero day






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






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






16. 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






17. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






18. Unified data carrying service - replacing from replay and ATM






19. 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






20. 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






21. 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






22. 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






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






24. OSI






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






26. Syn - Syn/Ack - Ack






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






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






29. True positive - false positive - true negative - false negative






30. Parasitic malware - boot record infector - macro - COM/Script program infector - EXE program infector






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






32. Outside attack from network - Outsider attack from telephone - Insider attack from local network - insider attack from local system - attack from malicious code






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






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






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. 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






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






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






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






40. Network scanner.






41. 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






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






43. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






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






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






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






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






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






49. Considered to be a perimeter device






50. Confidentiality - integrity - availability







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