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. Confidentiality - integrity - availability






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






3. 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






4. 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






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






6. 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






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






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






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






10. fast - with little fidelity - examines header information and limited payload data






11. NTP - BootP/DHCP - NFS file systems - SNMP - TFTP






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






13. Connects many WANs - MANs - and LANs - provided via ISP






14. Infects MBR - no network spreading potential






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






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






17. free windows based wireless scanner for 802.1b - detects access point settings - supports GSP integration - identifies networks as encrypted or unencrypted






18. 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






19. The practice of sending an ACK inside another packet going to the same destination






20. 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.






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






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






23. 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






24. Common backdoor to open a port - port scan scans for open ports on remote host - scans 0 - 65 -535 twice. TCP and UDP






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






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






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






28. Personal area network - phone tethering - bluetooth - etc






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






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






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






32. 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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33. 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






34. -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






35. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






36. 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






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






38. 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






39. 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






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






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






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






43. Syn - Syn/Ack - Ack






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






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






46. 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.






47. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






48. Going around with equipment to detect wireless networks






49. 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






50. 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.