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. 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






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






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






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






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






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






7. Anonymous FTP - FTP passes through clear text - Bounce attacks with the PORT command - user can cause an FTP to open a connection from the FTP's own commands and bypass a firewall






8. 192.0.0.0 through 223.255.255.255 - subnet mask of 255.255.255.0






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






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






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






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






15. 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






16. 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






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






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






19. Relies on executable code insertion and user interaction to spread






20. Infected millions through various methods - vulnerability in the MS Server Service - brute force admin password through network shares - infect removable devices with a malicious autorun script






21. 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






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






23. It handles the establishment and maintenance of connections between systems






24. -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






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






26. 8 bytes per packet - UDP SRC port - UDP DST Ports - UDP length - UDP Checksum






27. 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






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






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






30. 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.






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






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






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






34. Considered to be a perimeter device






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






36. Message in its encrypted form






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






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






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






40. Spread as an office attachment with executable code programmed using macro facility - targets are data files - visual basic editor and other macro languages - payload executes when the code is launched






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






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






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






44. 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






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






46. Small program triggered by an event that provides an action. E.g. scheduled file removal if countdown isn't reset - ie: employee was fired






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






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






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






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