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. Head of a packet contains...






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






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






4. 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






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






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






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






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






9. User / registered ports






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






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






12. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external






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






14. Bbenign activity reported as malicious






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






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






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






18. Twisted pair cable with speed capability of 1Gbps






19. 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






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






21. 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






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






23. Twisted pair cable with speed capability of 10Mbps






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






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






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






27. Collection on honeypots






28. Allows all traffic except traffic that is specifically denied - also known as permissive access






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






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






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






32. Acts as an organizations internal phone system






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






34. 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






35. Used to pass data from one VLAN to another






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






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






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






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






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






41. Dynamic / private ports






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






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






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






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






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






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