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CISSP Telecom And Network Security
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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. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.
Point-To-Point (PPP)
Bridge
High Level Data Link Control (HLDC)
Digital Subscriber Line (DSL)
2. SMTP server that is configured for sending email from any source to and destination.
Bridge
Private Branch Exchange (PBX)
Frame Relay
Open Relay
3. Identifys a WLAN. Can be used to segment environments into different WLANS.
Loki Attack
Layers in the OSI Model
Service Set ID (SSID)
Password Authentication Protocol (PAP)
4. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga
UDP
Open System Authentication (OSA)
Screened Sub-Net
OSI Layer 3: Network Layer
5. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Virtual Private Network (VPN)
Frequency Hopping Spread Spectrum (FHSS)
VoIP
Router
6. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Screened Host Firewall
Iterated Association
Token Ring (802.5)
Subnetting
7. Type of topology where computers all are connected to each other - which provides redundancy.
Circuit Switching
T1
Serial Line Internet Protocol (SLIP)
Commonly used in Internet.
8. 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)
Application Proxy vs. Circuit Level
Multilevel Switching
Token Ring (802.5)
9. 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
Spam over Internet Telephony (SPIT)
Bus Topology
Committed Information Rate (CIR)
10. 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.
Spread Spectrum
Router
IPSec
Multistation Access Unit (MAU)
11. This network technology determines which system will send data based on which one has the token.
Token Passing
Switch
Digital Subscriber Line (DSL)
Virtual Private Network (VPN)
12. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
T3
Integrated Services Digital Network (ISDN)
OSI Layer 7: Application
LLC (Logical Link Control - 802.2)
13. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Multilevel Switching
Frequency Hopping Spread Spectrum (FHSS)
OSI Layer 4: Transport Layer
IGMP
14. 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.
Cable Modem
OSI Layer 1: Physical
LLC (Logical Link Control - 802.2)
T1
15. Type of firewall that lies between the perimeter router and and LAN.
Commonly used in FDDI.
Reverse Address Resolution Protocol (RARP )
Spread Spectrum
Screened Host Firewall
16. Type of cabling problem signals from one wire crossing over to another wire.
Distributed Environment Challenge
ThickNet - aka 10base5.
802.16
Crosstalk
17. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
ThickNet - aka 10base5.
Multistation Access Unit (MAU)
ThinNet - aka 10base2
Wireless Application Protocol (WAP)
18. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Integrated Services Digital Network (ISDN)
Classless inter-domain routing (CIDR)
OSI Layer 2: Data Link Layer
Virtual Private Network (VPN)
19. 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.
Metropolitan Area Network (MAN)
Direct Sequence Spread Spectrum (DSSS)
Point-To-Point (PPP)
Integrated Services Digital Network (ISDN)
20. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Isochronous Communication Processes
Pulse Code Modulation (PCM)
Application Proxy vs. Circuit Level
Layers in the TCP/IP Model
21. Wireless standard that will improve security of wireless communication
T3
802.11i
Screened Sub-Net
OSI Layer 3: Network Layer
22. 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.
OSI Layer 4: Transport Layer
Application Proxy vs. Circuit Level
Cable Modem
Digital Subscriber Line (DSL)
23. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
IPSec
Layer 2 Tunneling Protocol (L2TP)
Frame Relay
UDP
24. 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
ARP Poisoning
VLAN
Multi-protocol Label Switching
Commonly used in logical bus - Ethernet - token ring.
25. Protocol that translates a MAC address into an IP address.
Reverse Address Resolution Protocol (RARP )
VLAN
OSI Layer 2: Data Link Layer
Switched Virtual Circuit (SVC)
26. Type of network layout that is a large geographical region connecting more that one LAN.
VoIP
Wide Area Network (WAN)
Multilevel Switching
802.11a
27. Spam over IM
Stateful Firewall
Synchronous Communication
Commonly used in FDDI.
SPIM
28. 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
Tree Topology
Star Topology
Fiber-optic Cables
29. Protocol that translates IP address into a MAC address (physical Ethernet address)
ARP (Address Resolution Protocol)
Extensible Authentication Protocol (EAP)
Commonly used in Ethernet.
Circuit Switching
30. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.
Tree Topology
Application Proxy vs. Circuit Level
Multi-protocol Label Switching
Attenuation
31. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.
Trunk Lines
802.11
Blue Boxing
Token Passing
32. 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
OSI Layer 2: Data Link Layer
Star Topology
Wired Equivalent Privacy (WEP)
Plenum-rated Cables
33. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
High Level Data Link Control (HLDC)
Token Ring (802.5)
Noise
FDDI-2
34. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Token Ring (802.5)
ARP (Address Resolution Protocol)
Packet Filtering Firewall
Point-To-Point Tunneling Protocol (PPTP)
35. 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
Packet Filtering Firewall
Private Branch Exchange (PBX)
Trunk Lines
36. Both directions - both applications can send information at a time. Session Layer Communication Modes
Asynchronous Transfer Mode (ATM)
Application Proxy Firewall
Packet Filtering Firewall
Full-Duplex
37. Communication devices that determine synchronization scheme before data transmission.
Committed Information Rate (CIR)
Synchronous Communication
Digital Subscriber Line (DSL)
Multi-protocol Label Switching
38. 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.
Wired Equivalent Privacy (WEP)
DOS attacks from flooding
OSI Layer 2: Data Link Layer
802.11
39. 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.
Dual-Homed Firewall
Multilevel Switching
Circuit Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
40. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Application Proxy Firewall
Password Authentication Protocol (PAP)
OSI Layer 6: Presentation
Wireless Application Protocol (WAP)
41. 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.
X.25
Mesh Topology
DNS (Domain Name System)
High Level Data Link Control (HLDC)
42. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Reverse Address Resolution Protocol (RARP )
Loki Attack
Challenge Handshake Authentication Protocol (CHAP)
ThickNet - aka 10base5.
43. 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.
OSI Layer 6: Presentation
Source Routing
Commonly used in logical bus - Ethernet - token ring.
Dedicated Links
44. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Packet Filtering Firewall
T1
10baseT
Classless inter-domain routing (CIDR)
45. 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
Trunk Lines
802.11a
VLAN
46. 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.
Open System Authentication (OSA)
T3
Circuit Switching
OSI Data encapsulation
47. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Bastion Host
Wide Area Network (WAN)
Crosstalk
Layers in the TCP/IP Model
48. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Bus Topology
Service Set ID (SSID)
OSI Layer 1: Physical
Open System Authentication (OSA)
49. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Frame Relay
Password Authentication Protocol (PAP)
Virtual Private Network (VPN)
ThickNet - aka 10base5.
50. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
High Level Data Link Control (HLDC)
Full-Duplex
Reverse Address Resolution Protocol (RARP )
Attenuation
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