Test your basic knowledge |

CISSP Telecom And 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. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.






2. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.






3. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.






4. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.






5. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).






6. Wireless standard that will improve security of wireless communication






7. This network technology determines which system will send data based on which one has the token.






8. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.






9. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.






10. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.






11. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.






12. Malware attack that sends commands inside of an ICMP packet.






13. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.






14. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.






15. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.






16. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.






17. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.






18. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.






19. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.






20. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).






21. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.






22. New variant to traditional email spam on VoIP networks.






23. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.






24. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.






25. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.






26. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.






27. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.






28. Both directions - only one application can send information at a time






29. Type of wireless security standard that uses AES in CBC mode.






30. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.






31. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.






32. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).






33. Protocol for allowing multi-cast (one to many) communication






34. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.






35. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.






36. In a token ring network - each computer is connected to this - which acts as a central hub.






37. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.






38. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.






39. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.






40. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.






41. Standard that outlines wireless personal area network (WPAN) technologies.






42. Identifys a WLAN. Can be used to segment environments into different WLANS.






43. Type of topology where computers all are connected to each other - which provides redundancy.






44. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.






45. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.






46. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.






47. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.






48. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.






49. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.






50. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.