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. Monitors network traffic to identify possible attacks






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






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






4. Twisted pair cable with speed capability of 1Gbps






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






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






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






8. User / registered ports






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






10. Malicious activity not reported or detected






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






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






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






14. 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






15. A variation of a smurf attack using UDP






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






17. Bbenign activity reported as malicious






18. Packet filtering - proxies - stateful inspection






19. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle






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






21. 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






22. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address






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






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






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






26. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






27. A packet filtering firewall works at this layer of the OSI model






28. IDS response method using logging and notification






29. Acts as an organizations internal phone system






30. Unauthenticated connections - creating the potential for a successful connection as an anonymous user






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






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






33. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






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






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






36. Used to pass data from one VLAN to another






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






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






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






40. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






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






42. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ






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






44. Twisted pair cable with speed capability of 10Mbps






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






46. 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






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






48. Level 2 firewall often used to filter web traffic






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






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