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






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






3. 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






4. One is for talking - one is for implementing






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






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






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






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






9. 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






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






11. 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.






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






13. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






15. 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






16. 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






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






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






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






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






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






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






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






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






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






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






27. Combines the functionality of a hub and bride into a single device - keeps track of MACs attached to each port






28. 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






29. Confidentiality - integrity - availability






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






31. 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






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






33. 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






34. Not frequently seen on LANs because of expense - because of its traffic predictability and high bandwidth support - it's good for video streaming - encapsulates common protocols - uses virtual path identifiers to create end to end connectivity - has






35. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






36. Unencrypted message in its original form






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






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






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






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






41. Going around with equipment to detect wireless networks






42. 53 bytes - 48 bytes for data - 5 bytes for the header






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






44. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






46. 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






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






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






49. Confidentiality - integrity - availability






50. 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






Can you answer 50 questions in 15 minutes?



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