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






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






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






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






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






6. OSI






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






8. 53 bytes - 48 bytes for data - 5 bytes for the header






9. 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.






10. Free linux WLAN analysis tool - completely passive - cannot be detected - supports advanced GPS integration and mapping features - used for wardriving - WLAN vulerability assessment






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






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






13. Message in its encrypted form






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






15. Protocol for mapping an IP address to a physical machine address that is recognized on the local network. A table - usually called the ARP cache - is used to maintain a correlation between each MAC and its corresponding IP address






16. 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.






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






18. 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






19. 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






20. Infects MBR - no network spreading potential






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






22. risk = threat x vulnerability - impossible to eliminate - security is an exercise in loss reduction






23. Stateful firewalls maintain state of traffic flows






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






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






26. Uniform protection - protected enclaves - information centric - threat vector analysis






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






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






29. Slow - requires stateful data tracking - inspects all fields - including variable-length fields






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






31. 1.0.0.0 through 127.255.255.255 - subnet mask starts at 255.0.0.0






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






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






34. 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






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






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






38. It allows the transport layer to detect when the UDP headers or the payload have been modified in transit






39. It makes sure the data sent from one side to the other is in a format useful to the other side






40. A TCP version of ping - sends custom TCP packets to a host and listens for replies - enables port scanning and spoofing simultaneously






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






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






43. 20 - FTP data - 21 - FTP - 23 - Telnet - 25 - SNMP - 53 - DNS - 79 - Finger - 80 - HTTP - 110 - POP - 443 - HTTPS






44. 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






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






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






47. Uses inclusive or exclusive lists - inclusive analysis utilizes a list of keywords - exclusive analysis utilizes a list of events that can be ignored






48. 53 - DNS - 67 - BootP - 68 - BootP - 69 - TFTP - 123- NTP - 137-139 NBT - 161 - SNMP - 162 - SNMP - 2049 - NFS






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






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