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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. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Frame Relay
Remote Access Servers
Trunk Lines
ThickNet - aka 10base5.
2. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Star Topology
10baseT
Circuit Level Proxy Firewall
Token Passing
3. 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.
OSI Data encapsulation
Reverse Address Resolution Protocol (RARP )
Wide Area Network (WAN)
Bridge
4. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Open Relay
Commonly used in FDDI.
Iterated Association
Service Set ID (SSID)
5. 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.
SOCKS Firewall
Full-Duplex
Proxy Firewall
Multilevel Switching
6. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
VoIP
Twisted Pair Cables
Wide Area Network (WAN)
Point-To-Point (PPP)
7. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
ICMP (Internet Control Message Protocol)
Extensible Authentication Protocol (EAP)
Token Passing
Pulse Code Modulation (PCM)
8. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
OSI Layer 3: Network Layer
Layers in the OSI Model
Dual-Homed Firewall
Token Passing
9. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Point-To-Point Tunneling Protocol (PPTP)
802.11a
Loki Attack
Committed Information Rate (CIR)
10. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Twisted Pair Cables
Subnetting
Wired Equivalent Privacy (WEP)
Circuit Switching
11. Protocol that increases address size from 32 bits to 128 bits
Iterated Association
Open System Authentication (OSA)
IPv6
Permanent Virtual Circuit (PVC)
12. Standard that addresses wireless MAN technologies.
Asynchronous Communication
Noise
Coaxial Cables
802.16
13. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Point-To-Point Tunneling Protocol (PPTP)
T1
SOCKS Firewall
Ring Topology
14. 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).
Synchronous Optical Networks (SONETS)
Multilevel Switching
Digital Subscriber Line (DSL)
Loki Attack
15. 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).
Full-Duplex
Dual-Homed Firewall
Channel Service Unit/Data Service Unit (CSU/DSU)
Token Ring (802.5)
16. 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
ThinNet - aka 10base2
Multistation Access Unit (MAU)
Iterated Association
17. 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.
802.11b
Carrier sense multiple access with collision detection (CSMA/CD)
ICMP (Internet Control Message Protocol)
Direct Sequence Spread Spectrum (DSSS)
18. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Asynchronous Communication
Challenge Handshake Authentication Protocol (CHAP)
Switched Virtual Circuit (SVC)
ICMP (Internet Control Message Protocol)
19. Type of network layout that separates and group computers logically.
Dynamic Packet Filtering
VLAN
Spam over Internet Telephony (SPIT)
Token Passing
20. Standard that outlines wireless personal area network (WPAN) technologies.
Trunk Lines
Twisted Pair Cables
802.15
Frame Relay
21. 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
Packet Filtering Firewall
Dedicated Links
Commonly used in Internet.
22. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
802.11b
Channel Service Unit/Data Service Unit (CSU/DSU)
Layers in the OSI Model
23. SMTP server that is configured for sending email from any source to and destination.
Layer 2 Tunneling Protocol (L2TP)
Open Relay
Packet Filtering Firewall
Pulse Code Modulation (PCM)
24. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Repeaters
Multistation Access Unit (MAU)
Synchronous Optical Networks (SONETS)
802.11
25. 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.
Token Ring (802.5)
Committed Information Rate (CIR)
Serial Line Internet Protocol (SLIP)
Screened Sub-Net
26. 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.
Password Authentication Protocol (PAP)
Trunk Lines
Point-To-Point (PPP)
802.16
27. 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.
Pulse Code Modulation (PCM)
Asynchronous Communication
Packet Filtering Firewall
Switched Virtual Circuit (SVC)
28. 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
802.11b
Twisted Pair Cables
Definition of Protocol
Synchronous Data Link Control (SDLC)
29. 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-
Frequency Hopping Spread Spectrum (FHSS)
OSI Layer 1: Physical
Plenum-rated Cables
Channel Service Unit/Data Service Unit (CSU/DSU)
30. 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.
Repeaters
802.16
Half-Duplex
Cable Modem
31. Both directions - both applications can send information at a time. Session Layer Communication Modes
ICMP (Internet Control Message Protocol)
Fiber Distributed Data Interface (FDDI)
Full-Duplex
Token Passing
32. 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.
Plenum-rated Cables
Frequency Hopping Spread Spectrum (FHSS)
Packet Filtering Firewall
Trunk Lines
33. Type of topology where computers all are connected to each other - which provides redundancy.
Iterated Association
Commonly used in Internet.
Reverse Address Resolution Protocol (RARP )
Multistation Access Unit (MAU)
34. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Permanent Virtual Circuit (PVC)
T1
Synchronous Optical Networks (SONETS)
Extensible Authentication Protocol (EAP)
35. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Spam over Internet Telephony (SPIT)
Frame Relay
Asynchronous Communication
SOCKS Firewall
36. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Noise
Open Relay
Bluejacking
37. 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).
Shared Key Authentication (SKA)
Permanent Virtual Circuit (PVC)
Trunk Lines
IPSec
38. 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.
Bluejacking
TCP
Commonly used in Ethernet.
Fiber Distributed Data Interface (FDDI)
39. Wireless communication that distributes individual signals across the allocated frequencies.
802.11
Spread Spectrum
LLC (Logical Link Control - 802.2)
Attenuation
40. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Trunk Lines
Permanent Virtual Circuit (PVC)
VLAN
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
41. Protocol that translates IP address into a MAC address (physical Ethernet address)
Commonly used in logical bus - Ethernet - token ring.
ARP (Address Resolution Protocol)
Dynamic Packet Filtering
Layer 2 Tunneling Protocol (L2TP)
42. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Commonly used in FDDI.
X.25
DNS (Domain Name System)
Layers in the OSI Model
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.
Circuit Switching
Synchronous Data Link Control (SDLC)
OSI Layer 6: Presentation
IPv6
44. 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.
Layer 2 Tunneling Protocol (L2TP)
Bridge
Ring Topology
OSI Data encapsulation
45. 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.
Dynamic Packet Filtering
T3
Token Ring (802.5)
OSI Layer 5: Session Layer
46. 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.
SPIM
Layer 2 Tunneling Protocol (L2TP)
LLC (Logical Link Control - 802.2)
Metropolitan Area Network (MAN)
47. New variant to traditional email spam on VoIP networks.
Kernel Proxy Firewall
Spam over Internet Telephony (SPIT)
Screened Sub-Net
Point-To-Point Tunneling Protocol (PPTP)
48. 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.
OSI Data encapsulation
Carrier sense multiple access with collision detection (CSMA/CD)
Wireless Application Protocol (WAP)
High Level Data Link Control (HLDC)
49. 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.
Serial Line Internet Protocol (SLIP)
OSI Layer 6: Presentation
Private Branch Exchange (PBX)
Asynchronous Transfer Mode (ATM)
50. Communication devices that determine synchronization scheme before data transmission.
Fiber-optic Cables
Stateful Firewall
IPSec
Synchronous Communication