Test your basic knowledge |

Comptia Security +: Network Security

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. Evolved from IDS - monitors network traffic - detects and responds to attack on network






2. IDS that relies on the identification of known attack signatures






3. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






4. Level 2 firewall often used to filter web traffic






5. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood






6. Connects devices together to form a subnet - broadcasts incoming packets to all devices






7. A set of rules computers use to communicate with each other across a network






8. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






9. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






10. Dynamic / private ports






11. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






12. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive






13. Twisted pair cable with speed capability of 10Mbps






14. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack






15. One private IP address is mapped to one public IP address






16. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






17. A complete transfer of all DNS zone information from one server to another






18. A pool of public IP addresses is shared by a collection of private IP addresses






19. IDS response method using logging and notification






20. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






21. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






22. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






23. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






24. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication






25. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)






26. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic






27. Man in the middle attack where the content of an intercepted message is altered before it is sent on






28. A server that sits between an intranet and it's Internet connection - masking all IP addresses






29. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold






30. A method - used by switches and email servers - of delivering messages which are temporarily held by an intermediary before being sent to their final destination






31. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






32. Packet filtering - proxies - stateful inspection






33. Twisted pair cable with speed capability of 1Gbps






34. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






35. Attempt to block service or reduce activity by overloading the victim machine with ping requests






36. Bbenign activity reported as malicious






37. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






38. Forging an IP address with the address of a trusted host






39. A variation of a smurf attack using UDP






40. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT






41. Known as thinnet - 10mbps - limited to 185 meters






42. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information






43. IPS response method - terminate process/session - block/reject and redirect network traffic






44. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






45. Acts as an organizations internal phone system






46. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






47. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing






48. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






49. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)






50. Known as thicknet - 10mbps - limited to 500 meters