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






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






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






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






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






6. Collection on honeypots






7. Dynamic / private ports






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






9. 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






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






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






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






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






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






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






16. 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






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






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






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






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






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






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






23. One private IP address is mapped to one public IP address






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






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






26. Used to pass data from one VLAN to another






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






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






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






30. Session hijacking countermeasure






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






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






33. Firewall with several NICs connected to different networks






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






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






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






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






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






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






40. User / registered ports






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






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






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






44. 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






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






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






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






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






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






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