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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. 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.
Asynchronous Transfer Mode (ATM)
Isochronous Communication Processes
Temporal Key Integrity Protocol (TKIP)
Integrated Services Digital Network (ISDN)
2. 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).
IPSec
Remote Access Servers
Network Address Translator (NAT)
Switched Virtual Circuit (SVC)
3. 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-
TCP
Distributed Environment Challenge
Frequency Hopping Spread Spectrum (FHSS)
Asynchronous Communication
4. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
VoIP
Digital Subscriber Line (DSL)
T1
Ring Topology
5. 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.
DOS attacks from flooding
Pulse Code Modulation (PCM)
Tree Topology
Noise
6. 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.
IPSec
Point-To-Point (PPP)
Dynamic Packet Filtering
Wired Equivalent Privacy (WEP)
7. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Tree Topology
Layers in the OSI Model
Fiber-optic Cables
Password Authentication Protocol (PAP)
8. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Port Numbers
T1
Virtual Private Network (VPN)
Plenum-rated Cables
9. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
Asynchronous Communication
High Level Data Link Control (HLDC)
Commonly used in FDDI.
10. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Dynamic Packet Filtering
Bastion Host
Isochronous Communication Processes
ThinNet - aka 10base2
11. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Private Branch Exchange (PBX)
OSI Layer 6: Presentation
Attenuation
Blue Boxing
12. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
TCP
Coaxial Cables
ThinNet - aka 10base2
Dedicated Links
13. Type of network layout that is a large geographical region connecting more that one LAN.
OSI Layer 3: Network Layer
Wide Area Network (WAN)
DOS attacks from flooding
Permanent Virtual Circuit (PVC)
14. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
X.25
Shared Key Authentication (SKA)
LLC (Logical Link Control - 802.2)
Serial Line Internet Protocol (SLIP)
15. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
SOCKS Firewall
Dual-Homed Firewall
802.11
OSI Layer 5: Session Layer
16. 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.
VLAN
Asynchronous Communication
Repeaters
OSI Layer 1: Physical
17. Type of network layout that separates and group computers logically.
VLAN
Layers in the TCP/IP Model
802.11a
Synchronous Optical Networks (SONETS)
18. 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)
Service Set ID (SSID)
OSI Layer 4: Transport Layer
Layers in the TCP/IP Model
19. 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).
Channel Service Unit/Data Service Unit (CSU/DSU)
802.11b
SPIM
Noise
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
Bastion Host
Permanent Virtual Circuit (PVC)
Proxy Firewall Strengths
Bridge
21. 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.
Distributed Environment Challenge
Packet Filtering Firewall
Commonly used in Internet.
Circuit Switching
22. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Shared Key Authentication (SKA)
OSI Layer 4: Transport Layer
Source Routing
Temporal Key Integrity Protocol (TKIP)
23. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Token Ring (802.5)
Network Address Translator (NAT)
ARP Poisoning
Router
24. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Iterated Association
Coaxial Cables
VLAN
Session Initiation Protocol (SIP)
25. 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)
Wired Equivalent Privacy (WEP)
Proxy Firewall Strengths
Definition of Protocol
26. Problems: Requires more expense in cabling and extra effort to track down cable faults.
802.16
Temporal Key Integrity Protocol (TKIP)
Spread Spectrum
Mesh Topology
27. 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.
ICMP (Internet Control Message Protocol)
Token Ring (802.5)
Synchronous Data Link Control (SDLC)
Commonly used in Ethernet.
28. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Password Authentication Protocol (PAP)
Point-To-Point Tunneling Protocol (PPTP)
Wide Area Network (WAN)
Private Branch Exchange (PBX)
29. 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
10baseT
Wired Equivalent Privacy (WEP)
Serial Line Internet Protocol (SLIP)
30. 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.
Synchronous Optical Networks (SONETS)
Password Authentication Protocol (PAP)
Commonly used in Ethernet.
31. 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.
UDP
Source Routing
Private Branch Exchange (PBX)
Router
32. Protocol that increases address size from 32 bits to 128 bits
IPv6
Metropolitan Area Network (MAN)
Temporal Key Integrity Protocol (TKIP)
Half-Duplex
33. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Source Routing
Packet Filtering Firewall
Temporal Key Integrity Protocol (TKIP)
Metropolitan Area Network (MAN)
34. 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.
FDDI-2
Circuit Switching
Reverse Address Resolution Protocol (RARP )
Open System Authentication (OSA)
35. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
Commonly used in Internet.
Session Initiation Protocol (SIP)
Point-To-Point (PPP)
36. 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.
OSI Layer 4: Transport Layer
802.11i
Proxy Firewall
Commonly used in FDDI.
37. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Private Branch Exchange (PBX)
Wireless Application Protocol (WAP)
Synchronous Optical Networks (SONETS)
Kernel Proxy Firewall
38. 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.
SOCKS Firewall
Switch
OSI Layer 5: Session Layer
Asynchronous Communication
39. 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.
ICMP (Internet Control Message Protocol)
OSI Data encapsulation
Full-Duplex
SPIM
40. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
FDDI-2
OSI Layer 1: Physical
SOCKS Firewall
Pulse Code Modulation (PCM)
41. 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).
Extensible Authentication Protocol (EAP)
Bus Topology
Multilevel Switching
Fiber-optic Cables
42. 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.
OSI Layer 2: Data Link Layer
Tree Topology
Serial Line Internet Protocol (SLIP)
Blue Boxing
43. 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.
ARP (Address Resolution Protocol)
Synchronous Data Link Control (SDLC)
High Level Data Link Control (HLDC)
Ethernet (802.3)
44. 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.
Definition of Protocol
Fiber-optic Cables
Open System Authentication (OSA)
OSI Layer 2: Data Link Layer
45. 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.
Dynamic Packet Filtering
Layers in the OSI Model
Trunk Lines
Remote Access Servers
46. Wireless communication that distributes individual signals across the allocated frequencies.
T3
Spam over Internet Telephony (SPIT)
OSI Layer 6: Presentation
Spread Spectrum
47. 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.
Private Branch Exchange (PBX)
Direct Sequence Spread Spectrum (DSSS)
ThinNet - aka 10base2
Multilevel Switching
48. Protocol that translates a MAC address into an IP address.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Reverse Address Resolution Protocol (RARP )
Simplex: One direction.
802.15
49. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.
Token Passing
Loki Attack
OSI Data encapsulation
Ethernet (802.3)
50. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
OSI Layer 6: Presentation
T1
UDP
Dynamic Packet Filtering