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. Dynamic / private ports






2. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms






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






4. Session hijacking countermeasure






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






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






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






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






9. Collection on honeypots






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






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






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






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






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






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






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






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






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






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






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






21. Firewall with several NICs connected to different networks






22. Monitors network traffic to identify possible attacks






23. Packet filtering - proxies - stateful inspection






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






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






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






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






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






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






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






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






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






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






34. Malicious activity not reported or detected






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






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






37. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






38. 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






39. 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






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






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






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






43. Level 2 firewall often used to filter web traffic






44. Twisted pair cable with speed capability of 10Mbps






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






46. Bbenign activity reported as malicious






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






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






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






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