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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. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
OSI Layer 2: Data Link Layer
802.11i
802.11b
Wide Area Network (WAN)
2. 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.
Point-To-Point (PPP)
Fiber Distributed Data Interface (FDDI)
Source Routing
Dedicated Links
3. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
Cable Modem
ThinNet - aka 10base2
OSI Layer 4: Transport Layer
Committed Information Rate (CIR)
4. 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.
Noise
High Level Data Link Control (HLDC)
Star Topology
Extensible Authentication Protocol (EAP)
5. 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.
Asynchronous Transfer Mode (ATM)
Attenuation
Repeaters
Direct Sequence Spread Spectrum (DSSS)
6. 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.
OSI Layer 3: Network Layer
Fiber-optic Cables
Reverse Address Resolution Protocol (RARP )
Kernel Proxy Firewall
7. Malware attack that sends commands inside of an ICMP packet.
IPSec
Loki Attack
Spam over Internet Telephony (SPIT)
Commonly used in FDDI.
8. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
SPIM
802.11a
Frame Relay
OSI Layer 7: Application
9. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
Attenuation
Synchronous Data Link Control (SDLC)
Challenge Handshake Authentication Protocol (CHAP)
TCP
10. Type of network layout that separates and group computers logically.
Router
Carrier sense multiple access with collision detection (CSMA/CD)
Shared Key Authentication (SKA)
VLAN
11. 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.
Direct Sequence Spread Spectrum (DSSS)
LLC (Logical Link Control - 802.2)
ICMP (Internet Control Message Protocol)
10baseT
12. Wireless communication that distributes individual signals across the allocated frequencies.
Commonly used in FDDI.
Spread Spectrum
OSI Layer 7: Application
Application Proxy Firewall
13. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Carrier sense multiple access with collision detection (CSMA/CD)
802.11
Commonly used in logical bus - Ethernet - token ring.
Open System Authentication (OSA)
14. Standard that outlines wireless personal area network (WPAN) technologies.
Switched Virtual Circuit (SVC)
Metropolitan Area Network (MAN)
802.15
IPv6
15. Wireless standard that will improve security of wireless communication
OSI Layer 6: Presentation
802.11i
IPv6
Layers in the OSI Model
16. 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
Spam over Internet Telephony (SPIT)
Multi-protocol Label Switching
Crosstalk
Commonly used in logical bus - Ethernet - token ring.
17. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Mesh Topology
Attenuation
ICMP (Internet Control Message Protocol)
Stateful Firewall
18. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Fiber-optic Cables
Proxy Firewall Strengths
Repeaters
Session Initiation Protocol (SIP)
19. 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.
Bus Topology
Virtual Private Network (VPN)
OSI Layer 1: Physical
Loki Attack
20. 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.
Packet Switching
Dedicated Links
Frame Relay
Layers in the OSI Model
21. In the OSI layer 5 - these are the types of what?
Cable Modem
OSI Data encapsulation
Simplex: One direction.
Ethernet (802.3)
22. Set of rules that dictates how computer communicate over networks.
FDDI-2
Ethernet (802.3)
Commonly used in logical bus - Ethernet - token ring.
Definition of Protocol
23. 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).
Metropolitan Area Network (MAN)
Token Ring (802.5)
Ethernet (802.3)
Multilevel Switching
24. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Proxy Firewall
Proxy Firewall Strengths
OSI Layer 6: Presentation
OSI Data encapsulation
25. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Isochronous Communication Processes
SPIM
OSI Data encapsulation
Integrated Services Digital Network (ISDN)
26. 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.
Twisted Pair Cables
Stateful Firewall
OSI Layer 7: Application
Commonly used in logical bus - Ethernet - token ring.
27. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Proxy Firewall
Ethernet (802.3)
LLC (Logical Link Control - 802.2)
Temporal Key Integrity Protocol (TKIP)
28. 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.
Commonly used in FDDI.
Coaxial Cables
Digital Subscriber Line (DSL)
CBC-MAC Protocol (CCMP)
29. 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.
VLAN
Open Relay
Proxy Firewall
Repeaters
30. 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.
Metropolitan Area Network (MAN)
Tree Topology
802.11
VLAN
31. 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.
Shared Key Authentication (SKA)
Definition of Protocol
ICMP (Internet Control Message Protocol)
Ethernet (802.3)
32. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Frame Relay
Ring Topology
Ethernet (802.3)
33. In a token ring network - each computer is connected to this - which acts as a central hub.
Simplex: One direction.
Packet Switching
Multistation Access Unit (MAU)
Noise
34. 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).
Frame Relay
Screened Sub-Net
Screened Host Firewall
IPSec
35. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Application Proxy Firewall
Frame Relay
Open System Authentication (OSA)
ARP (Address Resolution Protocol)
36. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
OSI Layer 6: Presentation
Committed Information Rate (CIR)
Commonly used in FDDI.
Carrier sense multiple access with collision detection (CSMA/CD)
37. 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.
Trunk Lines
Circuit Switching
Bridge
Service Set ID (SSID)
38. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Remote Access Servers
Temporal Key Integrity Protocol (TKIP)
Bastion Host
Layers in the TCP/IP Model
39. 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.
Asynchronous Transfer Mode (ATM)
Packet Filtering Firewall
X.25
OSI Layer 7: Application
40. 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
Stateful Firewall
IPSec
Synchronous Optical Networks (SONETS)
41. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.
Trunk Lines
Stateful Firewall
Direct Sequence Spread Spectrum (DSSS)
Synchronous Optical Networks (SONETS)
42. Spam over IM
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 6: Presentation
Commonly used in FDDI.
SPIM
43. Standard that addresses wireless MAN technologies.
X.25
802.16
DNS (Domain Name System)
Definition of Protocol
44. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Frame Relay
Permanent Virtual Circuit (PVC)
Port Numbers
802.11b
45. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Kernel Proxy Firewall
Synchronous Data Link Control (SDLC)
Frame Relay
Layers in the OSI Model
46. 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
Digital Subscriber Line (DSL)
Coaxial Cables
SPIM
47. Communication devices that determine synchronization scheme before data transmission.
Asynchronous Communication
Loki Attack
Router
Synchronous Communication
48. 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.
Bridge
Application Proxy vs. Circuit Level
Isochronous Communication Processes
VoIP
49. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Wide Area Network (WAN)
Multilevel Switching
Carrier sense multiple access with collision detection (CSMA/CD)
OSI Layer 7: Application
50. Protocol for allowing multi-cast (one to many) communication
Commonly used in Ethernet.
Wired Equivalent Privacy (WEP)
IGMP
Packet Filtering Firewall