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CISSP Telecom And Network Security

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.






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






3. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.






4. 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).






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






6. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi






7. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.






8. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.






9. Both directions - both applications can send information at a time. Session Layer Communication Modes






10. Network segment name for a DMZ created by two physical firewalls.






11. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.






12. 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.






13. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.






14. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.






15. Protocol that translates a MAC address into an IP address.






16. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections






17. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS






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






19. 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.






20. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.






21. Standard that addresses wireless MAN technologies.






22. 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.






23. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co






24. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.






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






26. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.






27. Type of cabling problem signals from one wire crossing over to another wire.






28. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.






29. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.






30. Protocol that translates IP address into a MAC address (physical Ethernet address)






31. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.






32. 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.






33. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.






34. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol






35. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.






36. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.






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






38. 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.






39. 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.






40. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.






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






42. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la






43. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.






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






45. 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.






46. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.






47. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).






48. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.






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






50. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.







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