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. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






7. Acts as an organizations internal phone system






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






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






10. Dynamic / private ports






11. Firewall with several NICs connected to different networks






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






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






14. Head of a packet contains...






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






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






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






18. Used to pass data from one VLAN to another






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






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






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






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






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






24. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






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






26. Packet filtering - proxies - stateful inspection






27. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






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






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






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






31. User / registered ports






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






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






34. 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






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






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






37. Session hijacking countermeasure






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






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






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






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






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






43. 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






44. Bbenign activity reported as malicious






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






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






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






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






49. A variation of a smurf attack using UDP






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