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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. 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.
Wired Equivalent Privacy (WEP)
Screened Sub-Net
Asynchronous Communication
Session Initiation Protocol (SIP)
2. 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.
CBC-MAC Protocol (CCMP)
Direct Sequence Spread Spectrum (DSSS)
ICMP (Internet Control Message Protocol)
10baseT
3. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
OSI Layer 7: Application
10baseT
Channel Service Unit/Data Service Unit (CSU/DSU)
Spam over Internet Telephony (SPIT)
4. Protocol that increases address size from 32 bits to 128 bits
IPv6
Permanent Virtual Circuit (PVC)
Blue Boxing
Open Relay
5. Protocol that translates a MAC address into an IP address.
Distributed Environment Challenge
Fiber Distributed Data Interface (FDDI)
Extensible Authentication Protocol (EAP)
Reverse Address Resolution Protocol (RARP )
6. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
Source Routing
CBC-MAC Protocol (CCMP)
Integrated Services Digital Network (ISDN)
7. Type of network layout that separates and group computers logically.
VLAN
Port Numbers
ThickNet - aka 10base5.
OSI Layer 6: Presentation
8. Type of network layout that is a large geographical region connecting more that one LAN.
Multi-protocol Label Switching
Distributed Environment Challenge
Commonly used in FDDI.
Wide Area Network (WAN)
9. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
CBC-MAC Protocol (CCMP)
ICMP (Internet Control Message Protocol)
Pulse Code Modulation (PCM)
Source Routing
10. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Iterated Association
Isochronous Communication Processes
FDDI-2
802.11a
11. 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.
Metropolitan Area Network (MAN)
X.25
Fiber Distributed Data Interface (FDDI)
Dynamic Packet Filtering
12. 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)
DOS attacks from flooding
Multilevel Switching
ThinNet - aka 10base2
13. 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.
Stateful Firewall
Dedicated Links
Ethernet (802.3)
Extensible Authentication Protocol (EAP)
14. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Proxy Firewall
OSI Layer 1: Physical
VoIP
Star Topology
15. 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.
Application Proxy Firewall
Screened Sub-Net
Fiber Distributed Data Interface (FDDI)
Stateful Firewall
16. 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.
Packet Filtering Firewall
Router
Remote Access Servers
Wireless Application Protocol (WAP)
17. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Pulse Code Modulation (PCM)
Permanent Virtual Circuit (PVC)
VLAN
Remote Access Servers
18. 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.
OSI Layer 4: Transport Layer
SPIM
Serial Line Internet Protocol (SLIP)
Twisted Pair Cables
19. Wireless standard that will improve security of wireless communication
Asynchronous Transfer Mode (ATM)
802.11i
Serial Line Internet Protocol (SLIP)
Simplex: One direction.
20. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Switched Virtual Circuit (SVC)
Tree Topology
Private Branch Exchange (PBX)
FDDI-2
21. Both directions - both applications can send information at a time. Session Layer Communication Modes
Private Branch Exchange (PBX)
Extensible Authentication Protocol (EAP)
Full-Duplex
Isochronous Communication Processes
22. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
High Level Data Link Control (HLDC)
Reverse Address Resolution Protocol (RARP )
Trunk Lines
23. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Bluejacking
SOCKS Firewall
Wide Area Network (WAN)
Iterated Association
24. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Permanent Virtual Circuit (PVC)
Channel Service Unit/Data Service Unit (CSU/DSU)
Circuit Level Proxy Firewall
IPSec
25. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
ICMP (Internet Control Message Protocol)
ThinNet - aka 10base2
Commonly used in Ethernet.
IPSec
26. 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.
Commonly used in Internet.
X.25
Router
OSI Layer 4: Transport Layer
27. 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.
Integrated Services Digital Network (ISDN)
Application Proxy vs. Circuit Level
Frame Relay
Point-To-Point (PPP)
28. 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
ThinNet - aka 10base2
Proxy Firewall Strengths
Simplex: One direction.
Asynchronous Transfer Mode (ATM)
29. 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.
Stateful Firewall
Reverse Address Resolution Protocol (RARP )
Screened Sub-Net
Token Passing
30. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Network Address Translator (NAT)
Circuit Switching
T1
Wide Area Network (WAN)
31. Malware attack that sends commands inside of an ICMP packet.
Noise
802.11a
Loki Attack
Tree Topology
32. 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)
Multilevel Switching
Switched Virtual Circuit (SVC)
Private Branch Exchange (PBX)
33. 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.
Stateful Firewall
Iterated Association
802.16
Bridge
34. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
802.11i
VLAN
802.11
Point-To-Point (PPP)
35. 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.
VoIP
IPv6
802.15
DOS attacks from flooding
36. 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).
Network Address Translator (NAT)
Tree Topology
Channel Service Unit/Data Service Unit (CSU/DSU)
T3
37. 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.
Isochronous Communication Processes
Digital Subscriber Line (DSL)
Stateful Firewall
Packet Filtering Firewall
38. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Challenge Handshake Authentication Protocol (CHAP)
DNS (Domain Name System)
Bluejacking
Wired Equivalent Privacy (WEP)
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
Ethernet (802.3)
OSI Layer 5: Session Layer
Synchronous Communication
40. 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.
IGMP
Metropolitan Area Network (MAN)
Packet Filtering Firewall
Distributed Environment Challenge
41. 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
Switched Virtual Circuit (SVC)
TCP
Trunk Lines
Multi-protocol Label Switching
42. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Application Proxy Firewall
Token Ring (802.5)
Fiber-optic Cables
43. 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.
Definition of Protocol
Classless inter-domain routing (CIDR)
Repeaters
Metropolitan Area Network (MAN)
44. 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
UDP
Multistation Access Unit (MAU)
Layers in the OSI Model
45. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Half-Duplex
Session Initiation Protocol (SIP)
Circuit Level Proxy Firewall
Router
46. 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.
OSI Layer 6: Presentation
Direct Sequence Spread Spectrum (DSSS)
Ethernet (802.3)
Screened Host Firewall
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.
Synchronous Optical Networks (SONETS)
T3
Private Branch Exchange (PBX)
Proxy Firewall Strengths
48. 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.
Dynamic Packet Filtering
Circuit Switching
Wireless Application Protocol (WAP)
Bus Topology
49. 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
Proxy Firewall Strengths
Packet Switching
Router
ThickNet - aka 10base5.
50. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
IPv6
Circuit Level Proxy Firewall
Asynchronous Transfer Mode (ATM)
Serial Line Internet Protocol (SLIP)