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Test your basic knowledge |
CISSP Telecom And Network Security
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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
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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. 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.
Trunk Lines
OSI Layer 4: Transport Layer
Coaxial Cables
Plenum-rated Cables
2. Both directions - only one application can send information at a time
Direct Sequence Spread Spectrum (DSSS)
Half-Duplex
Mesh Topology
OSI Data encapsulation
3. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
DNS (Domain Name System)
Virtual Private Network (VPN)
Loki Attack
ARP Poisoning
4. 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-
Proxy Firewall Strengths
Packet Filtering Firewall
Frequency Hopping Spread Spectrum (FHSS)
IPv6
5. 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
Challenge Handshake Authentication Protocol (CHAP)
IPv6
Proxy Firewall Strengths
Frame Relay
6. Problems: Central device is a single point of failure.
Star Topology
ARP Poisoning
Definition of Protocol
Temporal Key Integrity Protocol (TKIP)
7. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Proxy Firewall
10baseT
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
TCP
8. 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.
Isochronous Communication Processes
Metropolitan Area Network (MAN)
Frame Relay
Circuit Level Proxy Firewall
9. 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.
Ring Topology
Wide Area Network (WAN)
OSI Layer 1: Physical
Fiber-optic Cables
10. This network technology determines which system will send data based on which one has the token.
Frame Relay
OSI Layer 1: Physical
Token Passing
Dedicated Links
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)
Attenuation
Coaxial Cables
Blue Boxing
12. 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.
Frame Relay
Shared Key Authentication (SKA)
Half-Duplex
Packet Filtering Firewall
13. 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.
OSI Layer 1: Physical
Carrier sense multiple access with collision detection (CSMA/CD)
Ethernet (802.3)
Token Ring (802.5)
14. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Isochronous Communication Processes
Wired Equivalent Privacy (WEP)
Dynamic Packet Filtering
Serial Line Internet Protocol (SLIP)
15. 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.
Fiber Distributed Data Interface (FDDI)
Packet Filtering Firewall
X.25
Temporal Key Integrity Protocol (TKIP)
16. 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.
Dedicated Links
Iterated Association
Synchronous Communication
Wired Equivalent Privacy (WEP)
17. 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.
Circuit Switching
Distributed Environment Challenge
Cable Modem
Packet Filtering Firewall
18. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Ethernet (802.3)
Multi-protocol Label Switching
802.11b
SOCKS Firewall
19. 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.
Bluejacking
Point-To-Point Tunneling Protocol (PPTP)
Loki Attack
Wireless Application Protocol (WAP)
20. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Packet Filtering Firewall
Asynchronous Transfer Mode (ATM)
Source Routing
10baseT
21. 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.
Integrated Services Digital Network (ISDN)
Commonly used in FDDI.
Token Ring (802.5)
Router
22. Type of wireless security standard that uses AES in CBC mode.
Switch
Simplex: One direction.
Ring Topology
CBC-MAC Protocol (CCMP)
23. Wireless communication that distributes individual signals across the allocated frequencies.
Spread Spectrum
High Level Data Link Control (HLDC)
OSI Layer 4: Transport Layer
Attenuation
24. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Coaxial Cables
OSI Data encapsulation
Password Authentication Protocol (PAP)
LLC (Logical Link Control - 802.2)
25. Communication devices that determine synchronization scheme before data transmission.
DNS (Domain Name System)
Star Topology
Synchronous Communication
OSI Layer 4: Transport Layer
26. 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)
Bridge
T3
Layer 2 Tunneling Protocol (L2TP)
27. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Isochronous Communication Processes
Subnetting
Plenum-rated Cables
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
28. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Wireless Application Protocol (WAP)
Remote Access Servers
Layer 2 Tunneling Protocol (L2TP)
Bridge
29. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Circuit Switching
UDP
Bus Topology
Repeaters
30. Protocol for allowing multi-cast (one to many) communication
OSI Layer 5: Session Layer
Switched Virtual Circuit (SVC)
IGMP
802.11
31. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
Wired Equivalent Privacy (WEP)
Committed Information Rate (CIR)
Metropolitan Area Network (MAN)
32. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Packet Filtering Firewall
802.11i
Network Address Translator (NAT)
Frame Relay
33. 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
OSI Layer 4: Transport Layer
Isochronous Communication Processes
Synchronous Data Link Control (SDLC)
Proxy Firewall
34. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Open System Authentication (OSA)
Proxy Firewall
802.15
Iterated Association
35. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Coaxial Cables
VLAN
Password Authentication Protocol (PAP)
Dynamic Packet Filtering
36. 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.
Commonly used in Ethernet.
OSI Layer 5: Session Layer
Router
Token Passing
37. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Point-To-Point Tunneling Protocol (PPTP)
Channel Service Unit/Data Service Unit (CSU/DSU)
OSI Layer 7: Application
Loki Attack
38. 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.
OSI Layer 7: Application
Frame Relay
High Level Data Link Control (HLDC)
Pulse Code Modulation (PCM)
39. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
UDP
Router
Layer 2 Tunneling Protocol (L2TP)
Blue Boxing
40. 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.
CBC-MAC Protocol (CCMP)
802.15
Layers in the TCP/IP Model
Carrier sense multiple access with collision detection (CSMA/CD)
41. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Kernel Proxy Firewall
802.15
Fiber Distributed Data Interface (FDDI)
Switched Virtual Circuit (SVC)
42. 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.
Star Topology
Token Ring (802.5)
Spam over Internet Telephony (SPIT)
Layer 2 Tunneling Protocol (L2TP)
43. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Iterated Association
Frame Relay
Fiber Distributed Data Interface (FDDI)
Network Address Translator (NAT)
44. In a token ring network - each computer is connected to this - which acts as a central hub.
Wired Equivalent Privacy (WEP)
OSI Layer 2: Data Link Layer
Multistation Access Unit (MAU)
Proxy Firewall
45. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Layers in the TCP/IP Model
Classless inter-domain routing (CIDR)
LLC (Logical Link Control - 802.2)
Plenum-rated Cables
46. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Noise
TCP
Port Numbers
47. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Subnetting
Application Proxy Firewall
Ring Topology
Kernel Proxy Firewall
48. 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.
Point-To-Point (PPP)
Multistation Access Unit (MAU)
Source Routing
Proxy Firewall Strengths
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.
DOS attacks from flooding
Screened Sub-Net
Spread Spectrum
Layer 2 Tunneling Protocol (L2TP)
50. Type of network layout that separates and group computers logically.
Point-To-Point Tunneling Protocol (PPTP)
Channel Service Unit/Data Service Unit (CSU/DSU)
Synchronous Communication
VLAN