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






2. Firewall with several NICs connected to different networks






3. A logical connection point allowing computers and software to communicate and exchange data






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






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






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






7. A variation of a smurf attack using UDP






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






9. Used to pass data from one VLAN to another






10. Monitors network traffic to identify possible attacks






11. IDS response method using logging and notification






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






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






14. Session hijacking countermeasure






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






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






17. 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






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






19. Collection on honeypots






20. 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






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






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






23. Packet filtering - proxies - stateful inspection






24. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






25. IP - email - website - DNS - and ARP






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






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






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






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






30. Acts as an organizations internal phone system






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






32. 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






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






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






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






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






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






38. Twisted pair cable with speed capability of 1Gbps






39. Head of a packet contains...






40. 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






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






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






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






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






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






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






47. Dynamic / private ports






48. Bbenign activity reported as malicious






49. Twisted pair cable with speed capability of 10Mbps






50. Protocol used to map an known IP address to its corresponding media access control (MAC) address