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. Dynamic / private ports






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






3. Packet filtering - proxies - stateful inspection






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






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






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






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






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






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






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






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






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






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






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






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






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






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. 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






19. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






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






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






22. 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






23. Session hijacking countermeasure






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






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






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. Malicious activity not reported or detected






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






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






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






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






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






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






35. Monitors network traffic to identify possible attacks






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






37. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






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






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






40. Acts as an organizations internal phone system






41. 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






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






43. User / registered ports






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






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






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






48. IDS response method using logging and notification






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






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