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






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






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






4. User / registered ports






5. 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






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






7. Monitors network traffic to identify possible attacks






8. Twisted pair cable with speed capability of 10Mbps






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






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






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






12. Firewall with several NICs connected to different networks






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






14. Level 2 firewall often used to filter web traffic






15. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters






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






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






18. 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






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






20. A variation of a smurf attack using UDP






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






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






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






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






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






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






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






28. 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






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






30. Bbenign activity reported as malicious






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






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






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






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






35. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






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






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






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






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






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






41. Twisted pair cable with speed capability of 1Gbps






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






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






44. 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






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






46. Acts as an organizations internal phone system






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






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






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






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