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. Packet filtering - proxies - stateful inspection






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






4. 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






5. User / registered ports






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






7. Malicious activity not reported or detected






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






9. Level 2 firewall often used to filter web traffic






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






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






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






13. Examines a entire packet and determines action based on a complex set of rules






14. Known as thinnet - 10mbps - limited to 185 meters






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






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






17. Firewall with several NICs connected to different networks






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






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






20. IDS response method using logging and notification






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






22. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






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






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






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






26. Acts as an organizations internal phone system






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






28. 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






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






30. 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






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






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






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






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






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






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






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






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






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






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






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






42. Used to pass data from one VLAN to another






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






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






45. Bbenign activity reported as malicious






46. Twisted pair cable with speed capability of 10Mbps






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






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






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






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