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Test your basic knowledge |
CISSP Telecom And Network Security
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Subjects
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certifications
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it-skills
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cissp
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. 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.
Source Routing
Dynamic Packet Filtering
Mesh Topology
Layers in the TCP/IP Model
2. 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).
802.11
Synchronous Data Link Control (SDLC)
IPSec
Session Initiation Protocol (SIP)
3. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Multi-protocol Label Switching
Bridge
OSI Layer 1: Physical
Point-To-Point (PPP)
4. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Layer 2 Tunneling Protocol (L2TP)
Commonly used in FDDI.
Plenum-rated Cables
Full-Duplex
5. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.
Tree Topology
10baseT
Application Proxy Firewall
OSI Layer 6: Presentation
6. 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.
Frame Relay
Packet Filtering Firewall
Plenum-rated Cables
Token Ring (802.5)
7. 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.
Layer 2 Tunneling Protocol (L2TP)
TCP
802.16
Direct Sequence Spread Spectrum (DSSS)
8. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Fiber Distributed Data Interface (FDDI)
Switch
TCP
Tree Topology
9. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
X.25
Coaxial Cables
Permanent Virtual Circuit (PVC)
Ethernet (802.3)
10. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Wired Equivalent Privacy (WEP)
Packet Filtering Firewall
Asynchronous Communication
Noise
11. Type of firewall that lies between the perimeter router and and LAN.
Twisted Pair Cables
Screened Host Firewall
Half-Duplex
Bastion Host
12. 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.
Frequency Hopping Spread Spectrum (FHSS)
10baseT
Commonly used in FDDI.
Application Proxy vs. Circuit Level
13. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
Wired Equivalent Privacy (WEP)
Asynchronous Communication
Simplex: One direction.
Blue Boxing
14. Type of network layout that is a large geographical region connecting more that one LAN.
Distributed Environment Challenge
OSI Layer 4: Transport Layer
Wide Area Network (WAN)
Proxy Firewall
15. Both directions - only one application can send information at a time
ThickNet - aka 10base5.
Half-Duplex
Coaxial Cables
Dynamic Packet Filtering
16. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Password Authentication Protocol (PAP)
Commonly used in FDDI.
Fiber Distributed Data Interface (FDDI)
Asynchronous Transfer Mode (ATM)
17. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
Dual-Homed Firewall
Subnetting
Layers in the OSI Model
18. Malware attack that sends commands inside of an ICMP packet.
Layers in the OSI Model
Frame Relay
Classless inter-domain routing (CIDR)
Loki Attack
19. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Private Branch Exchange (PBX)
Open System Authentication (OSA)
OSI Layer 4: Transport Layer
T1
20. In the OSI layer 5 - these are the types of what?
ThickNet - aka 10base5.
Synchronous Optical Networks (SONETS)
VoIP
Simplex: One direction.
21. 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.
Synchronous Data Link Control (SDLC)
Proxy Firewall Strengths
Metropolitan Area Network (MAN)
Asynchronous Transfer Mode (ATM)
22. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Extensible Authentication Protocol (EAP)
Dual-Homed Firewall
Iterated Association
DNS (Domain Name System)
23. Identifys a WLAN. Can be used to segment environments into different WLANS.
Point-To-Point (PPP)
Metropolitan Area Network (MAN)
IGMP
Service Set ID (SSID)
24. 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.
Screened Sub-Net
802.11i
IPSec
Frame Relay
25. 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
Repeaters
Extensible Authentication Protocol (EAP)
OSI Layer 4: Transport Layer
Frequency Hopping Spread Spectrum (FHSS)
26. 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.
Distributed Environment Challenge
Application Proxy vs. Circuit Level
Layer 2 Tunneling Protocol (L2TP)
Commonly used in FDDI.
27. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Extensible Authentication Protocol (EAP)
Application Proxy vs. Circuit Level
Frame Relay
28. Type of network layout that separates and group computers logically.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
T1
VLAN
Mesh Topology
29. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
TCP
Spread Spectrum
VoIP
30. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
T3
Serial Line Internet Protocol (SLIP)
Crosstalk
Service Set ID (SSID)
31. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.
Circuit Switching
Shared Key Authentication (SKA)
IPv6
Carrier sense multiple access with collision detection (CSMA/CD)
32. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Token Ring (802.5)
Layers in the TCP/IP Model
Packet Filtering Firewall
33. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
Metropolitan Area Network (MAN)
Open System Authentication (OSA)
Multi-protocol Label Switching
34. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
SOCKS Firewall
SPIM
Packet Switching
Password Authentication Protocol (PAP)
35. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
802.16
Packet Filtering Firewall
Application Proxy Firewall
Proxy Firewall
36. Network segment name for a DMZ created by two physical firewalls.
Port Numbers
Packet Filtering Firewall
Direct Sequence Spread Spectrum (DSSS)
Screened Sub-Net
37. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.
802.11i
Router
VoIP
Subnetting
38. 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.
Commonly used in FDDI.
Wireless Application Protocol (WAP)
Port Numbers
CBC-MAC Protocol (CCMP)
39. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.
OSI Layer 4: Transport Layer
Router
Proxy Firewall Strengths
FDDI-2
40. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Tree Topology
Trunk Lines
Layers in the TCP/IP Model
Reverse Address Resolution Protocol (RARP )
41. 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.
VoIP
Ethernet (802.3)
DNS (Domain Name System)
SPIM
42. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
ICMP (Internet Control Message Protocol)
OSI Layer 3: Network Layer
Commonly used in Internet.
43. 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.
Source Routing
Ring Topology
Asynchronous Transfer Mode (ATM)
Frame Relay
44. This network technology determines which system will send data based on which one has the token.
Remote Access Servers
Token Passing
Plenum-rated Cables
Noise
45. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
802.11a
Shared Key Authentication (SKA)
OSI Layer 1: Physical
Twisted Pair Cables
46. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
ARP Poisoning
Switch
OSI Data encapsulation
IPv6
47. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
IGMP
OSI Layer 2: Data Link Layer
TCP
Commonly used in logical bus - Ethernet - token ring.
48. 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.
X.25
Packet Filtering Firewall
OSI Layer 7: Application
Dual-Homed Firewall
49. New variant to traditional email spam on VoIP networks.
Screened Sub-Net
Pulse Code Modulation (PCM)
Spam over Internet Telephony (SPIT)
ICMP (Internet Control Message Protocol)
50. 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.
10baseT
802.16
Temporal Key Integrity Protocol (TKIP)
Proxy Firewall