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






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






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






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






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






6. 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






7. 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






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






9. Bbenign activity reported as malicious






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






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






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






13. Malicious activity not reported or detected






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






15. Firewall with several NICs connected to different networks






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






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






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






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






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






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






22. Monitors network traffic to identify possible attacks






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






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






25. Level 2 firewall often used to filter web traffic






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






27. Twisted pair cable with speed capability of 1Gbps






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






29. Packet filtering - proxies - stateful inspection






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






31. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






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






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






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






35. Session hijacking countermeasure






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






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






38. Used to pass data from one VLAN to another






39. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






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






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






42. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






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






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






45. Collection on honeypots






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






47. Head of a packet contains...






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






49. IDS response method using logging and notification






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