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






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






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






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






5. Twisted pair cable with speed capability of 10Mbps






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






7. Collection on honeypots






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






9. Monitors network traffic to identify possible attacks






10. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






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






12. Malicious activity not reported or detected






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






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






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






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






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






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






19. User / registered ports






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






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






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






23. 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






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






25. Session hijacking countermeasure






26. Level 2 firewall often used to filter web traffic






27. Firewall with several NICs connected to different networks






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






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






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






31. A variation of a smurf attack using UDP






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






33. 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






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






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






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






37. Packet filtering - proxies - stateful inspection






38. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






39. Dynamic / private ports






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






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






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






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






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






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






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






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






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






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






50. Bbenign activity reported as malicious






Can you answer 50 questions in 15 minutes?



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