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






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






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






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






5. Unencrypted message in its original form






6. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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






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






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






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






12. 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






13. Going around with equipment to detect wireless networks






14. -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






15. Stateful firewalls maintain state of traffic flows






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






17. 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






18. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






19. Considered to be a perimeter device






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






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






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






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






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






25. Trying to ID modems in a telephone exchange that may be susceptible to compromise






26. 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






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






28. Wide Area Network - Larger than MAN or LAN - uses public network - phone lines - and leased lines to tie LAN and MAN over a dispersed area






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






30. Syn - Syn/Ack - Ack






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






32. 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






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






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






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






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






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






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






39. 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






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






41. Maintains complete TCP connection state and sequencing through 2 connections - address translation built-in by virtue of second connection above






42. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






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






44. Intrusion detection system - it reports attacks against monitored systems/networks






45. Message in its encrypted form






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






47. OSI






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






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






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