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. Firewall with several NICs connected to different networks






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






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






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






5. Dynamic / private ports






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






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






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






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






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






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






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






13. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






18. Bbenign activity reported as malicious






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






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






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






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






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






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






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






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






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






28. Head of a packet contains...






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






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






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






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






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






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






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






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






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






38. 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






39. Session hijacking countermeasure






40. A variation of a smurf attack using UDP






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






42. 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






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






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






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






46. Used to pass data from one VLAN to another






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






48. IDS response method using logging and notification






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






50. Collection on honeypots