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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. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Pulse Code Modulation (PCM)
Frame Relay
Iterated Association
Commonly used in Internet.
2. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
LLC (Logical Link Control - 802.2)
Proxy Firewall
Iterated Association
Dual-Homed Firewall
3. 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.
802.16
OSI Layer 5: Session Layer
Token Ring (802.5)
T1
4. Network segment name for a DMZ created by two physical firewalls.
802.11i
Metropolitan Area Network (MAN)
Synchronous Data Link Control (SDLC)
Screened Sub-Net
5. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Coaxial Cables
Repeaters
Committed Information Rate (CIR)
VLAN
6. 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.
Star Topology
Wireless Application Protocol (WAP)
802.11i
Source Routing
7. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
DNS (Domain Name System)
Attenuation
Layers in the TCP/IP Model
Dynamic Packet Filtering
8. Protocol that translates IP address into a MAC address (physical Ethernet address)
Definition of Protocol
Proxy Firewall Strengths
ARP (Address Resolution Protocol)
Direct Sequence Spread Spectrum (DSSS)
9. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
Kernel Proxy Firewall
Metropolitan Area Network (MAN)
Open Relay
10. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Bastion Host
Tree Topology
Layers in the TCP/IP Model
Dual-Homed Firewall
11. 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.
Router
Temporal Key Integrity Protocol (TKIP)
802.11i
Pulse Code Modulation (PCM)
12. Protocol that increases address size from 32 bits to 128 bits
Remote Access Servers
IPv6
Token Ring (802.5)
Classless inter-domain routing (CIDR)
13. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
802.11a
Open Relay
Definition of Protocol
T3
14. 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.
Reverse Address Resolution Protocol (RARP )
Point-To-Point Tunneling Protocol (PPTP)
OSI Data encapsulation
Bastion Host
15. 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.
Dual-Homed Firewall
Multi-protocol Label Switching
Pulse Code Modulation (PCM)
OSI Layer 6: Presentation
16. 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).
TCP
Blue Boxing
Open Relay
Multilevel Switching
17. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Multi-protocol Label Switching
OSI Layer 4: Transport Layer
Packet Filtering Firewall
CBC-MAC Protocol (CCMP)
18. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Network Address Translator (NAT)
Serial Line Internet Protocol (SLIP)
ThickNet - aka 10base5.
Twisted Pair Cables
19. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Bluejacking
Dynamic Packet Filtering
ThinNet - aka 10base2
OSI Layer 2: Data Link Layer
20. 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.
802.11i
OSI Layer 6: Presentation
Packet Filtering Firewall
Commonly used in FDDI.
21. 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.
Half-Duplex
Bluejacking
Extensible Authentication Protocol (EAP)
Fiber Distributed Data Interface (FDDI)
22. 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.
Wired Equivalent Privacy (WEP)
Frame Relay
Repeaters
Subnetting
23. Communication devices that determine synchronization scheme before data transmission.
OSI Layer 7: Application
Crosstalk
Ring Topology
Synchronous Communication
24. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
Synchronous Data Link Control (SDLC)
Mesh Topology
Ring Topology
25. Type of network layout that is a large geographical region connecting more that one LAN.
Wide Area Network (WAN)
ARP (Address Resolution Protocol)
IPv6
Bastion Host
26. Protocol that translates a MAC address into an IP address.
Reverse Address Resolution Protocol (RARP )
Full-Duplex
Iterated Association
Blue Boxing
27. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Commonly used in FDDI.
Shared Key Authentication (SKA)
Classless inter-domain routing (CIDR)
Asynchronous Transfer Mode (ATM)
28. Spam over IM
VoIP
Wireless Application Protocol (WAP)
SPIM
Pulse Code Modulation (PCM)
29. 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
Screened Sub-Net
OSI Data encapsulation
Direct Sequence Spread Spectrum (DSSS)
Multi-protocol Label Switching
30. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Ethernet (802.3)
Subnetting
Loki Attack
DNS (Domain Name System)
31. 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.
Stateful Firewall
Multi-protocol Label Switching
IPv6
Spread Spectrum
32. 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.
OSI Layer 6: Presentation
Asynchronous Transfer Mode (ATM)
Dynamic Packet Filtering
Repeaters
33. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Tree Topology
Circuit Level Proxy Firewall
Bastion Host
Commonly used in FDDI.
34. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
High Level Data Link Control (HLDC)
Frame Relay
Commonly used in logical bus - Ethernet - token ring.
Simplex: One direction.
35. 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.
Open Relay
Ethernet (802.3)
Cable Modem
Multilevel Switching
36. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Remote Access Servers
Commonly used in logical bus - Ethernet - token ring.
Frame Relay
Dynamic Packet Filtering
37. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Bluejacking
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Crosstalk
OSI Layer 7: Application
38. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Bridge
Proxy Firewall
Committed Information Rate (CIR)
Layers in the TCP/IP Model
39. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
Tree Topology
ThickNet - aka 10base5.
OSI Layer 7: Application
40. 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.
Tree Topology
Synchronous Communication
Trunk Lines
Circuit Switching
41. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
IPv6
TCP
Spam over Internet Telephony (SPIT)
ThinNet - aka 10base2
42. 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.
Integrated Services Digital Network (ISDN)
Dynamic Packet Filtering
TCP
Isochronous Communication Processes
43. 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
Application Proxy vs. Circuit Level
Crosstalk
802.16
Proxy Firewall Strengths
44. Type of wireless security standard that uses AES in CBC mode.
Point-To-Point Tunneling Protocol (PPTP)
CBC-MAC Protocol (CCMP)
Carrier sense multiple access with collision detection (CSMA/CD)
Half-Duplex
45. 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.
Direct Sequence Spread Spectrum (DSSS)
Dynamic Packet Filtering
OSI Layer 4: Transport Layer
Open System Authentication (OSA)
46. 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).
Channel Service Unit/Data Service Unit (CSU/DSU)
Crosstalk
Wired Equivalent Privacy (WEP)
Dynamic Packet Filtering
47. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Switch
Layers in the OSI Model
Metropolitan Area Network (MAN)
Fiber-optic Cables
48. 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.
Switched Virtual Circuit (SVC)
Open System Authentication (OSA)
Service Set ID (SSID)
Ring Topology
49. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Bridge
Permanent Virtual Circuit (PVC)
Isochronous Communication Processes
ICMP (Internet Control Message Protocol)
50. 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.
Reverse Address Resolution Protocol (RARP )
Frequency Hopping Spread Spectrum (FHSS)
OSI Layer 1: Physical
Isochronous Communication Processes