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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. 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






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






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






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






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






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






7. 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






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






9. Bbenign activity reported as malicious






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






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






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






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






14. 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






15. 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






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






17. 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






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






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






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






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






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






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






24. Dynamic / private ports






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






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






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






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






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






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






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






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






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






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






35. Twisted pair cable with speed capability of 1Gbps






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






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






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






39. Firewall with several NICs connected to different networks






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






41. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






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






43. Malicious activity not reported or detected






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






45. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






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






47. Used to pass data from one VLAN to another






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






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






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






Can you answer 50 questions in 15 minutes?



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