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. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






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






3. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






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






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






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






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






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






9. Firewall with several NICs connected to different networks






10. Acts as an organizations internal phone system






11. Session hijacking countermeasure






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






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






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






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






16. Collection on honeypots






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






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






19. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






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






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






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






23. Head of a packet contains...






24. 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






25. IDS response method using logging and notification






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






27. 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






28. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






33. Level 2 firewall often used to filter web traffic






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






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






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






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






38. User / registered ports






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






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






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






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






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






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






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






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






47. Malicious activity not reported or detected






48. Twisted pair cable with speed capability of 10Mbps






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






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