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






2. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets






3. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






4. Bbenign activity reported as malicious






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






6. Examines a entire packet and determines action based on a complex set of rules






7. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






8. An attacker redirects traffic by falsifying the IP address requested by ARP request






9. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






10. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






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






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






13. A sniffer mode used to capture traffic addressed to/from another machine on the network






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






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






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






17. Amplifies the signal of incoming packets before broadcasting them to the network






18. An application layer gateway works at this layer of the OSI model






19. Twisted pair cable with speed capability of 1Gbps






20. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet






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






22. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






23. A logical division of a computer network - in which all nodes can reach each other by broadcast at the data link layer - equivalent to a VLAN






24. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






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






26. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






27. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






28. Used to pass data from one VLAN to another






29. Collection on honeypots






30. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






31. Level 2 firewall often used to filter web traffic






32. Network configuration that permits selected outsiders access internal information systems






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






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






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






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






37. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






38. 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






39. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






40. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data






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






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






43. IDS response method using logging and notification






44. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________






45. IP spoofing attack where the attacker can only send packets and has to guess about replies






46. Session hijacking countermeasure






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






48. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






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






50. Firewall with several NICs connected to different networks