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






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






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






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






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






6. Monitors network traffic to identify possible attacks






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






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






9. Level 2 firewall often used to filter web traffic






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






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






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






13. Twisted pair cable with speed capability of 10Mbps






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






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






16. IP spoofing attack where the attacker can only send packets and has to guess about replies






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






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






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






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






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






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






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






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






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






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






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






28. User / registered ports






29. Bbenign activity reported as malicious






30. Firewall with several NICs connected to different networks






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






32. Acts as an organizations internal phone system






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






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






35. Head of a packet contains...






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






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






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






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






40. 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






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






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






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






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






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






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






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






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






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