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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 increases address size from 32 bits to 128 bits
IPv6
OSI Layer 3: Network Layer
Spam over Internet Telephony (SPIT)
SOCKS Firewall
2. 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.
ARP (Address Resolution Protocol)
Source Routing
Frame Relay
Synchronous Data Link Control (SDLC)
3. 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.
Direct Sequence Spread Spectrum (DSSS)
Serial Line Internet Protocol (SLIP)
OSI Layer 4: Transport Layer
Circuit Switching
4. 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.
Source Routing
Pulse Code Modulation (PCM)
Layers in the TCP/IP Model
High Level Data Link Control (HLDC)
5. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Trunk Lines
Commonly used in Ethernet.
OSI Layer 7: Application
High Level Data Link Control (HLDC)
6. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Stateful Firewall
OSI Data encapsulation
Temporal Key Integrity Protocol (TKIP)
Blue Boxing
7. 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.
Wireless Application Protocol (WAP)
Half-Duplex
T1
Trunk Lines
8. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Commonly used in Internet.
Service Set ID (SSID)
OSI Layer 1: Physical
9. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Metropolitan Area Network (MAN)
Bastion Host
Fiber-optic Cables
Remote Access Servers
10. Type of cabling problem signals from one wire crossing over to another wire.
Asynchronous Transfer Mode (ATM)
Full-Duplex
Token Ring (802.5)
Crosstalk
11. 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.
OSI Layer 4: Transport Layer
Wireless Application Protocol (WAP)
Application Proxy Firewall
Direct Sequence Spread Spectrum (DSSS)
12. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Remote Access Servers
Simplex: One direction.
Ring Topology
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
13. 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).
Multilevel Switching
Circuit Switching
Private Branch Exchange (PBX)
SPIM
14. 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.
Synchronous Communication
Cable Modem
Circuit Level Proxy Firewall
802.11a
15. In a token ring network - each computer is connected to this - which acts as a central hub.
Channel Service Unit/Data Service Unit (CSU/DSU)
Private Branch Exchange (PBX)
SPIM
Multistation Access Unit (MAU)
16. 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
ThinNet - aka 10base2
Dynamic Packet Filtering
Coaxial Cables
17. 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.
Port Numbers
Digital Subscriber Line (DSL)
Metropolitan Area Network (MAN)
IPv6
18. 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
Committed Information Rate (CIR)
ICMP (Internet Control Message Protocol)
Wireless Application Protocol (WAP)
19. SMTP server that is configured for sending email from any source to and destination.
IPSec
10baseT
Isochronous Communication Processes
Open Relay
20. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Shared Key Authentication (SKA)
802.15
Layers in the TCP/IP Model
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).
Definition of Protocol
Layers in the OSI Model
Channel Service Unit/Data Service Unit (CSU/DSU)
Commonly used in logical bus - Ethernet - token ring.
22. 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
802.11i
OSI Layer 3: Network Layer
Packet Switching
Extensible Authentication Protocol (EAP)
23. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Star Topology
Subnetting
Simplex: One direction.
24. 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
T1
Noise
ThinNet - aka 10base2
25. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Layer 2 Tunneling Protocol (L2TP)
802.11b
Point-To-Point Tunneling Protocol (PPTP)
Integrated Services Digital Network (ISDN)
26. 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
Simplex: One direction.
Synchronous Data Link Control (SDLC)
Bluejacking
Isochronous Communication Processes
27. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Password Authentication Protocol (PAP)
Dual-Homed Firewall
Remote Access Servers
Classless inter-domain routing (CIDR)
28. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Internet.
Proxy Firewall
Dynamic Packet Filtering
OSI Layer 3: Network Layer
29. 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.
802.11
OSI Data encapsulation
OSI Layer 2: Data Link Layer
Frequency Hopping Spread Spectrum (FHSS)
30. 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.
Bus Topology
Ethernet (802.3)
Repeaters
DOS attacks from flooding
31. 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
Classless inter-domain routing (CIDR)
Private Branch Exchange (PBX)
Open System Authentication (OSA)
32. 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.
Temporal Key Integrity Protocol (TKIP)
LLC (Logical Link Control - 802.2)
802.11b
OSI Data encapsulation
33. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
VoIP
Integrated Services Digital Network (ISDN)
T3
Blue Boxing
34. 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
OSI Layer 5: Session Layer
Spam over Internet Telephony (SPIT)
DNS (Domain Name System)
Packet Switching
35. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Port Numbers
OSI Layer 7: Application
Multistation Access Unit (MAU)
Layers in the OSI Model
36. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Circuit Switching
Packet Filtering Firewall
Synchronous Data Link Control (SDLC)
T3
37. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Service Set ID (SSID)
Classless inter-domain routing (CIDR)
Screened Host Firewall
T1
38. 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)
T3
Packet Filtering Firewall
Wireless Application Protocol (WAP)
39. 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.
Layers in the OSI Model
Shared Key Authentication (SKA)
Packet Filtering Firewall
Noise
40. 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)
Synchronous Data Link Control (SDLC)
VoIP
Screened Sub-Net
41. 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.
Noise
Shared Key Authentication (SKA)
Frame Relay
Synchronous Optical Networks (SONETS)
42. 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.
Virtual Private Network (VPN)
Layer 2 Tunneling Protocol (L2TP)
Plenum-rated Cables
Point-To-Point Tunneling Protocol (PPTP)
43. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Permanent Virtual Circuit (PVC)
Commonly used in Internet.
Layers in the OSI Model
Packet Filtering Firewall
44. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
Layers in the TCP/IP Model
Dynamic Packet Filtering
Spread Spectrum
Layer 2 Tunneling Protocol (L2TP)
45. 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.
Synchronous Optical Networks (SONETS)
Bridge
T1
Subnetting
46. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Port Numbers
FDDI-2
Circuit Level Proxy Firewall
UDP
47. Spam over IM
Challenge Handshake Authentication Protocol (CHAP)
SPIM
Mesh Topology
Half-Duplex
48. Both directions - both applications can send information at a time. Session Layer Communication Modes
DOS attacks from flooding
VLAN
Full-Duplex
Wired Equivalent Privacy (WEP)
49. Communication devices that determine synchronization scheme before data transmission.
Packet Filtering Firewall
DNS (Domain Name System)
ARP (Address Resolution Protocol)
Synchronous Communication
50. 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.
Wired Equivalent Privacy (WEP)
Frequency Hopping Spread Spectrum (FHSS)
Full-Duplex
Layer 2 Tunneling Protocol (L2TP)