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CISSP Telecom And Network Security
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CISSP Telecom And Network Security
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25 Questions

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

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

4. 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).

5. Type of network layout that separates and group computers logically.

6. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.

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

8. 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).

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

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

11. Communication devices that determine synchronization scheme before data transmission.

12. SMTP server that is configured for sending email from any source to and destination.

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

14. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.

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

16. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.

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

18. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.

19. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.

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

21. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.

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

23. Problems: Central device is a single point of failure.

24. 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.

25. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.

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