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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. 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.
Session Initiation Protocol (SIP)
Frame Relay
Fiber-optic Cables
OSI Layer 4: Transport Layer
2. 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
Stateful Firewall
Packet Switching
Synchronous Optical Networks (SONETS)
Asynchronous Communication
3. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Point-To-Point Tunneling Protocol (PPTP)
Port Numbers
ThinNet - aka 10base2
Session Initiation Protocol (SIP)
4. 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)
TCP
Simplex: One direction.
Virtual Private Network (VPN)
5. Protocol that translates IP address into a MAC address (physical Ethernet address)
IPSec
Simplex: One direction.
TCP
ARP (Address Resolution Protocol)
6. 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
Token Ring (802.5)
Synchronous Data Link Control (SDLC)
CBC-MAC Protocol (CCMP)
Bastion Host
7. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Circuit Level Proxy Firewall
VoIP
Bus Topology
Attenuation
8. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Mesh Topology
Ring Topology
Twisted Pair Cables
Layers in the OSI Model
9. 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.
Synchronous Communication
X.25
LLC (Logical Link Control - 802.2)
Multistation Access Unit (MAU)
10. Both directions - only one application can send information at a time
Permanent Virtual Circuit (PVC)
802.16
VoIP
Half-Duplex
11. 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.
Open System Authentication (OSA)
ICMP (Internet Control Message Protocol)
Router
T3
12. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
Bus Topology
Plenum-rated Cables
Spam over Internet Telephony (SPIT)
13. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Virtual Private Network (VPN)
Layers in the OSI Model
TCP
Subnetting
14. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Remote Access Servers
TCP
Commonly used in Ethernet.
Plenum-rated Cables
15. 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
Switch
LLC (Logical Link Control - 802.2)
Packet Switching
Layers in the TCP/IP Model
16. 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.
Distributed Environment Challenge
Channel Service Unit/Data Service Unit (CSU/DSU)
DOS attacks from flooding
Cable Modem
17. 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.
Packet Switching
Application Proxy Firewall
Attenuation
IPSec
18. Type of network layout that is a large geographical region connecting more that one LAN.
VLAN
10baseT
Multistation Access Unit (MAU)
Wide Area Network (WAN)
19. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.
Layer 2 Tunneling Protocol (L2TP)
Attenuation
Commonly used in logical bus - Ethernet - token ring.
Fiber-optic Cables
20. Type of wireless security standard that uses AES in CBC mode.
Private Branch Exchange (PBX)
CBC-MAC Protocol (CCMP)
802.16
Password Authentication Protocol (PAP)
21. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
DNS (Domain Name System)
Remote Access Servers
DOS attacks from flooding
Token Ring (802.5)
22. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.
OSI Layer 1: Physical
Asynchronous Communication
Wired Equivalent Privacy (WEP)
IPv6
23. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Committed Information Rate (CIR)
Bridge
802.11b
Iterated Association
24. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
Plenum-rated Cables
Commonly used in FDDI.
UDP
Multilevel Switching
25. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Extensible Authentication Protocol (EAP)
Commonly used in FDDI.
Repeaters
Bastion Host
26. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
802.11i
Pulse Code Modulation (PCM)
Password Authentication Protocol (PAP)
OSI Layer 4: Transport Layer
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.
Iterated Association
Direct Sequence Spread Spectrum (DSSS)
Asynchronous Communication
Layers in the TCP/IP Model
28. Spam over IM
Open System Authentication (OSA)
Frame Relay
DOS attacks from flooding
SPIM
29. 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.
Proxy Firewall
Serial Line Internet Protocol (SLIP)
Router
Bluejacking
30. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Circuit Switching
Serial Line Internet Protocol (SLIP)
Synchronous Optical Networks (SONETS)
ARP (Address Resolution Protocol)
31. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
SPIM
High Level Data Link Control (HLDC)
DOS attacks from flooding
32. 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.
Challenge Handshake Authentication Protocol (CHAP)
Dedicated Links
Remote Access Servers
Twisted Pair Cables
33. 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.
Definition of Protocol
OSI Data encapsulation
Distributed Environment Challenge
Attenuation
34. Wireless standard that will improve security of wireless communication
Tree Topology
802.11i
Serial Line Internet Protocol (SLIP)
Password Authentication Protocol (PAP)
35. Network segment name for a DMZ created by two physical firewalls.
Switch
Commonly used in logical bus - Ethernet - token ring.
Screened Sub-Net
Bridge
36. 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.
Distributed Environment Challenge
Dual-Homed Firewall
Fiber-optic Cables
802.15
37. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Service Set ID (SSID)
Fiber-optic Cables
Bus Topology
Committed Information Rate (CIR)
38. 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
Wireless Application Protocol (WAP)
Extensible Authentication Protocol (EAP)
OSI Layer 7: Application
T1
39. Wireless communication that distributes individual signals across the allocated frequencies.
Twisted Pair Cables
Trunk Lines
Channel Service Unit/Data Service Unit (CSU/DSU)
Spread Spectrum
40. This network technology determines which system will send data based on which one has the token.
Repeaters
ARP (Address Resolution Protocol)
ThickNet - aka 10base5.
Token Passing
41. New variant to traditional email spam on VoIP networks.
Open System Authentication (OSA)
Synchronous Communication
Fiber Distributed Data Interface (FDDI)
Spam over Internet Telephony (SPIT)
42. Type of network layout that separates and group computers logically.
VLAN
Frame Relay
IPSec
Multilevel Switching
43. 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.
Packet Filtering Firewall
Screened Host Firewall
Trunk Lines
Committed Information Rate (CIR)
44. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Tree Topology
IGMP
Iterated Association
Pulse Code Modulation (PCM)
45. 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.
Noise
SPIM
Router
Multilevel Switching
46. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Bridge
OSI Data encapsulation
Commonly used in logical bus - Ethernet - token ring.
Loki Attack
47. 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 Data encapsulation
Frame Relay
Packet Filtering Firewall
Simplex: One direction.
48. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Spread Spectrum
Cable Modem
Distributed Environment Challenge
Temporal Key Integrity Protocol (TKIP)
49. 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.
Full-Duplex
Channel Service Unit/Data Service Unit (CSU/DSU)
DOS attacks from flooding
Digital Subscriber Line (DSL)
50. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Isochronous Communication Processes
Dynamic Packet Filtering
Bluejacking
TCP