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






2. Stateful firewalls maintain state of traffic flows






3. logic bomb - trojan horse - trap door






4. An attacker recruits zombie systems ahead of time to simultaneously release a flood of traffic at a specific target.






5. 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.






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






8. 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






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






10. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






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






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






13. 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






14. Unencrypted message in its original form






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






16. Strips OS commands and characters from input - avoid making system calls from within the app * especially based on user input






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






18. 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






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






20. 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.






21. Allows segmentation of a switch into different networks - regardless of where a system is plugged in - creates separate networks through software not hardware

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






23. 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






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






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






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






27. 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






28. 128.0.0.0 through 191.255.255.255 - with a subnet mask of 255.255.0.0






29. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






32. One is for talking - one is for implementing






33. Network scanner.






34. Confidentiality - symmetric encryption






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






36. 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.






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






38. rules indicate criteria in packets that represent events of interest - rules are applied to packets as they are received - alerts are created when matches are found






39. Improper deployment can increase attack risk - if production systems aren't sufficiently protected - they can be vulnerable from a honeypot - legal liability






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






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






42. 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






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






44. Replicates traffic onto all ports - no traffic monitoring - cannot control which ports should or shouldn't receive frames - forming a large collision domain.






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






46. -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






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






48. 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






49. 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.






50. 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