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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 wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.
Multistation Access Unit (MAU)
Point-To-Point (PPP)
Bluejacking
Open System Authentication (OSA)
2. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Repeaters
Token Ring (802.5)
OSI Layer 2: Data Link Layer
Proxy Firewall
3. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
Pulse Code Modulation (PCM)
TCP
Commonly used in Ethernet.
Full-Duplex
4. 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.
Coaxial Cables
Carrier sense multiple access with collision detection (CSMA/CD)
802.15
Circuit Level Proxy Firewall
5. 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.
Extensible Authentication Protocol (EAP)
Bus Topology
OSI Layer 6: Presentation
Wide Area Network (WAN)
6. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Wireless Application Protocol (WAP)
Half-Duplex
OSI Layer 5: Session Layer
Shared Key Authentication (SKA)
7. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
Switch
Multilevel Switching
OSI Layer 6: Presentation
8. 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.
Extensible Authentication Protocol (EAP)
OSI Layer 7: Application
High Level Data Link Control (HLDC)
Wired Equivalent Privacy (WEP)
9. 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.
Kernel Proxy Firewall
OSI Layer 1: Physical
ARP (Address Resolution Protocol)
Spread Spectrum
10. 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.
Synchronous Optical Networks (SONETS)
Packet Switching
Circuit Switching
Switched Virtual Circuit (SVC)
11. Set of rules that dictates how computer communicate over networks.
VoIP
Spam over Internet Telephony (SPIT)
Iterated Association
Definition of Protocol
12. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Channel Service Unit/Data Service Unit (CSU/DSU)
Temporal Key Integrity Protocol (TKIP)
DNS (Domain Name System)
Layers in the TCP/IP Model
13. 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.
10baseT
Wired Equivalent Privacy (WEP)
Subnetting
Virtual Private Network (VPN)
14. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Bluejacking
Bastion Host
802.11b
T3
15. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Temporal Key Integrity Protocol (TKIP)
Mesh Topology
Multilevel Switching
Proxy Firewall
16. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
Extensible Authentication Protocol (EAP)
802.11
Frequency Hopping Spread Spectrum (FHSS)
Permanent Virtual Circuit (PVC)
17. 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
Fiber-optic Cables
OSI Layer 3: Network Layer
Ring Topology
Proxy Firewall
18. Protocol for allowing multi-cast (one to many) communication
IGMP
10baseT
DNS (Domain Name System)
802.15
19. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
OSI Data encapsulation
Open System Authentication (OSA)
Attenuation
Switch
20. 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
Password Authentication Protocol (PAP)
Proxy Firewall Strengths
ThinNet - aka 10base2
Commonly used in Ethernet.
21. 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).
Dual-Homed Firewall
Packet Switching
Channel Service Unit/Data Service Unit (CSU/DSU)
Dynamic Packet Filtering
22. 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-
Packet Switching
Dual-Homed Firewall
Iterated Association
Frequency Hopping Spread Spectrum (FHSS)
23. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Session Initiation Protocol (SIP)
Noise
IPSec
Network Address Translator (NAT)
24. Network segment name for a DMZ created by two physical firewalls.
UDP
Network Address Translator (NAT)
Multilevel Switching
Screened Sub-Net
25. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
OSI Layer 6: Presentation
Token Passing
Iterated Association
Classless inter-domain routing (CIDR)
26. 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.
Packet Filtering Firewall
Mesh Topology
Tree Topology
DOS attacks from flooding
27. Type of topology where computers all are connected to each other - which provides redundancy.
Bridge
Fiber Distributed Data Interface (FDDI)
Commonly used in Internet.
ThickNet - aka 10base5.
28. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Synchronous Communication
Bluejacking
802.11a
29. Type of network layout that separates and group computers logically.
VLAN
Layers in the TCP/IP Model
X.25
Reverse Address Resolution Protocol (RARP )
30. Type of cabling problem signals from one wire crossing over to another wire.
Circuit Switching
Crosstalk
Remote Access Servers
802.11a
31. 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.
Classless inter-domain routing (CIDR)
Asynchronous Transfer Mode (ATM)
Network Address Translator (NAT)
Multilevel Switching
32. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Switched Virtual Circuit (SVC)
ThickNet - aka 10base5.
OSI Layer 7: Application
X.25
33. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Source Routing
Remote Access Servers
802.11
Pulse Code Modulation (PCM)
34. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
Spread Spectrum
Extensible Authentication Protocol (EAP)
ARP Poisoning
X.25
35. Both directions - both applications can send information at a time. Session Layer Communication Modes
Crosstalk
Token Ring (802.5)
Open Relay
Full-Duplex
36. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Reverse Address Resolution Protocol (RARP )
Repeaters
Point-To-Point (PPP)
UDP
37. 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
Asynchronous Transfer Mode (ATM)
VoIP
Serial Line Internet Protocol (SLIP)
38. 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.
OSI Layer 6: Presentation
Digital Subscriber Line (DSL)
Frame Relay
802.11b
39. 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
Twisted Pair Cables
Asynchronous Transfer Mode (ATM)
Point-To-Point Tunneling Protocol (PPTP)
40. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
Port Numbers
802.11i
Open System Authentication (OSA)
Wireless Application Protocol (WAP)
41. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Packet Switching
TCP
Wireless Application Protocol (WAP)
ThinNet - aka 10base2
42. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Open System Authentication (OSA)
SOCKS Firewall
Permanent Virtual Circuit (PVC)
Spam over Internet Telephony (SPIT)
43. 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.
Fiber-optic Cables
Mesh Topology
Commonly used in FDDI.
Metropolitan Area Network (MAN)
44. Wireless standard that will improve security of wireless communication
ARP (Address Resolution Protocol)
802.11i
Distributed Environment Challenge
Bridge
45. Type of network layout that is a large geographical region connecting more that one LAN.
Wide Area Network (WAN)
Open System Authentication (OSA)
Bridge
Full-Duplex
46. 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.
802.11i
Frame Relay
T3
Full-Duplex
47. 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.
Virtual Private Network (VPN)
Definition of Protocol
Synchronous Optical Networks (SONETS)
ARP Poisoning
48. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
802.11
Circuit Switching
ThickNet - aka 10base5.
OSI Layer 7: Application
49. New variant to traditional email spam on VoIP networks.
Half-Duplex
Ring Topology
Ethernet (802.3)
Spam over Internet Telephony (SPIT)
50. Wireless communication that distributes individual signals across the allocated frequencies.
Multilevel Switching
Spread Spectrum
Commonly used in Ethernet.
Commonly used in logical bus - Ethernet - token ring.