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. It handles the establishment and maintenance of connections between systems






2. Going around with equipment to detect wireless networks






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






4. 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






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






6. 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






7. Migrate to WPA2 - use strong authentication like PEAP or TTLS - audit network installations - require mutual auth between client and infrastructure equipment






8. Syn - Syn/Ack - Ack






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






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






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






12. Confidentiality - integrity - availability






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






14. 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






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






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






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






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






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






20. 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






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






22. Known - unknown - zero day






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






24. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






25. 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






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






27. A low end firewall that can quickly be deployed using existing hardware. They examine packets themselves with no content.






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






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






30. 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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31. 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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32. Not a replacement for firewalls - hardening - strong policies - or other DiD methods - low maintenance - inexpensive






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






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






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






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






37. Infects the EXE and make them operate slightly different - when infected - exe header sizes are altered to point to the appended viral code






38. 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






39. Unencrypted message in its original form






40. 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






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






42. One is for talking - one is for implementing






43. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






47. 53 bytes - 48 bytes for data - 5 bytes for the header






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






49. Stateful firewalls maintain state of traffic flows






50. Handles transmissions across the physical media like wires - fiber - etc