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






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






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






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






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






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






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






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






9. Head of a packet contains...






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






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






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






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






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






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






16. 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






17. 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






18. Acts as an organizations internal phone system






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






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






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






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






23. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






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






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






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






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






28. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






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






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






31. User / registered ports






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






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






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






35. Collection on honeypots






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






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






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






39. 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






40. Malicious activity not reported or detected






41. 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






42. IDS response method using logging and notification






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






44. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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






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






47. Session hijacking countermeasure






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






49. A variation of a smurf attack using UDP






50. Used to pass data from one VLAN to another