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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. 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.
LLC (Logical Link Control - 802.2)
T1
Spread Spectrum
Metropolitan Area Network (MAN)
2. 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)
X.25
Loki Attack
SPIM
3. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.
High Level Data Link Control (HLDC)
Screened Sub-Net
Direct Sequence Spread Spectrum (DSSS)
Wireless Application Protocol (WAP)
4. 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
LLC (Logical Link Control - 802.2)
Frequency Hopping Spread Spectrum (FHSS)
Virtual Private Network (VPN)
5. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.
Point-To-Point Tunneling Protocol (PPTP)
OSI Layer 7: Application
Cable Modem
10baseT
6. 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.
Frame Relay
DNS (Domain Name System)
OSI Data encapsulation
Password Authentication Protocol (PAP)
7. Protocol for allowing multi-cast (one to many) communication
802.11i
Crosstalk
IGMP
Circuit Switching
8. 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.
Digital Subscriber Line (DSL)
Iterated Association
Repeaters
Fiber Distributed Data Interface (FDDI)
9. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
Password Authentication Protocol (PAP)
Dual-Homed Firewall
Fiber-optic Cables
10. 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.
High Level Data Link Control (HLDC)
Source Routing
Port Numbers
FDDI-2
11. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
VLAN
Virtual Private Network (VPN)
Noise
12. 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).
Isochronous Communication Processes
Twisted Pair Cables
Frame Relay
X.25
13. 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.
Fiber Distributed Data Interface (FDDI)
Switch
ThickNet - aka 10base5.
Bridge
14. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
OSI Layer 6: Presentation
802.11b
T3
Commonly used in FDDI.
15. Malware attack that sends commands inside of an ICMP packet.
Channel Service Unit/Data Service Unit (CSU/DSU)
OSI Layer 6: Presentation
Repeaters
Loki Attack
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).
Spam over Internet Telephony (SPIT)
Digital Subscriber Line (DSL)
Multilevel Switching
Multi-protocol Label Switching
17. Problems: Central device is a single point of failure.
Challenge Handshake Authentication Protocol (CHAP)
Star Topology
Packet Filtering Firewall
Proxy Firewall Strengths
18. Spam over IM
Asynchronous Transfer Mode (ATM)
Loki Attack
X.25
SPIM
19. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Wireless Application Protocol (WAP)
802.11a
Synchronous Data Link Control (SDLC)
Session Initiation Protocol (SIP)
20. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Packet Filtering Firewall
Frame Relay
Simplex: One direction.
Network Address Translator (NAT)
21. In a token ring network - each computer is connected to this - which acts as a central hub.
Iterated Association
Multistation Access Unit (MAU)
UDP
Proxy Firewall
22. 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.
Committed Information Rate (CIR)
Application Proxy vs. Circuit Level
Screened Host Firewall
Trunk Lines
23. 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.
Source Routing
Coaxial Cables
Stateful Firewall
VLAN
24. 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.
802.11b
Classless inter-domain routing (CIDR)
Ethernet (802.3)
Integrated Services Digital Network (ISDN)
25. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
UDP
TCP
Switched Virtual Circuit (SVC)
Pulse Code Modulation (PCM)
26. Both directions - both applications can send information at a time. Session Layer Communication Modes
Serial Line Internet Protocol (SLIP)
OSI Layer 6: Presentation
Layers in the TCP/IP Model
Full-Duplex
27. 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.
Classless inter-domain routing (CIDR)
Multistation Access Unit (MAU)
Stateful Firewall
Fiber Distributed Data Interface (FDDI)
28. 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
Multi-protocol Label Switching
Dynamic Packet Filtering
802.11a
High Level Data Link Control (HLDC)
29. Protocol that increases address size from 32 bits to 128 bits
Multilevel Switching
IPv6
Circuit Switching
UDP
30. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
High Level Data Link Control (HLDC)
Integrated Services Digital Network (ISDN)
Definition of Protocol
Challenge Handshake Authentication Protocol (CHAP)
31. 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
Dual-Homed Firewall
Proxy Firewall Strengths
Tree Topology
Open System Authentication (OSA)
32. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
UDP
X.25
Switch
Attenuation
33. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
Point-To-Point (PPP)
Commonly used in logical bus - Ethernet - token ring.
VoIP
Virtual Private Network (VPN)
34. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Remote Access Servers
DNS (Domain Name System)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Trunk Lines
35. 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.
Bastion Host
Repeaters
IPSec
Source Routing
36. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25
Permanent Virtual Circuit (PVC)
Definition of Protocol
ThickNet - aka 10base5.
Packet Switching
37. Standard that outlines wireless personal area network (WPAN) technologies.
Switched Virtual Circuit (SVC)
Distributed Environment Challenge
802.15
Token Passing
38. 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.
Frame Relay
Point-To-Point Tunneling Protocol (PPTP)
Multi-protocol Label Switching
Packet Filtering Firewall
39. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Committed Information Rate (CIR)
Source Routing
Spread Spectrum
Layers in the OSI Model
40. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Frequency Hopping Spread Spectrum (FHSS)
ThickNet - aka 10base5.
Coaxial Cables
Fiber Distributed Data Interface (FDDI)
41. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Temporal Key Integrity Protocol (TKIP)
Packet Filtering Firewall
Layers in the TCP/IP Model
Mesh Topology
42. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Router
Carrier sense multiple access with collision detection (CSMA/CD)
Port Numbers
43. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Kernel Proxy Firewall
VLAN
Frame Relay
Dual-Homed Firewall
44. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Synchronous Communication
Service Set ID (SSID)
Shared Key Authentication (SKA)
ARP Poisoning
45. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.
Tree Topology
Carrier sense multiple access with collision detection (CSMA/CD)
VoIP
Mesh Topology
46. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Asynchronous Transfer Mode (ATM)
Packet Filtering Firewall
802.11a
Integrated Services Digital Network (ISDN)
47. 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.
Password Authentication Protocol (PAP)
SPIM
OSI Data encapsulation
OSI Layer 4: Transport Layer
48. Both directions - only one application can send information at a time
Half-Duplex
802.11i
10baseT
CBC-MAC Protocol (CCMP)
49. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
High Level Data Link Control (HLDC)
Service Set ID (SSID)
Synchronous Optical Networks (SONETS)
50. 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.
Token Ring (802.5)
Subnetting
Dedicated Links
VLAN