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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. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Open System Authentication (OSA)
Twisted Pair Cables
Commonly used in Ethernet.
OSI Layer 7: Application
2. Type of firewall that lies between the perimeter router and and LAN.
Repeaters
ARP Poisoning
Temporal Key Integrity Protocol (TKIP)
Screened Host Firewall
3. 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
OSI Layer 4: Transport Layer
Blue Boxing
Wired Equivalent Privacy (WEP)
4. 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.
Spam over Internet Telephony (SPIT)
Dynamic Packet Filtering
Reverse Address Resolution Protocol (RARP )
OSI Layer 1: Physical
5. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
Layer 2 Tunneling Protocol (L2TP)
Integrated Services Digital Network (ISDN)
Source Routing
6. Wireless communication that distributes individual signals across the allocated frequencies.
UDP
Spread Spectrum
Commonly used in logical bus - Ethernet - token ring.
OSI Layer 3: Network Layer
7. 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.
ThickNet - aka 10base5.
Carrier sense multiple access with collision detection (CSMA/CD)
Permanent Virtual Circuit (PVC)
Fiber Distributed Data Interface (FDDI)
8. 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
Bastion Host
Dynamic Packet Filtering
Synchronous Optical Networks (SONETS)
9. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
Token Ring (802.5)
Repeaters
Multi-protocol Label Switching
Temporal Key Integrity Protocol (TKIP)
10. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
X.25
OSI Layer 1: Physical
Packet Filtering Firewall
ICMP (Internet Control Message Protocol)
11. 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.
Bus Topology
OSI Layer 4: Transport Layer
Proxy Firewall
Frame Relay
12. Both directions - both applications can send information at a time. Session Layer Communication Modes
Asynchronous Transfer Mode (ATM)
Digital Subscriber Line (DSL)
Multistation Access Unit (MAU)
Full-Duplex
13. Type of topology where computers all are connected to each other - which provides redundancy.
Channel Service Unit/Data Service Unit (CSU/DSU)
Iterated Association
Commonly used in Internet.
Proxy Firewall Strengths
14. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
Permanent Virtual Circuit (PVC)
Crosstalk
Virtual Private Network (VPN)
Circuit Switching
15. 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).
DNS (Domain Name System)
IPSec
Wired Equivalent Privacy (WEP)
Digital Subscriber Line (DSL)
16. Protocol that translates IP address into a MAC address (physical Ethernet address)
Spread Spectrum
Password Authentication Protocol (PAP)
T1
ARP (Address Resolution Protocol)
17. Set of rules that dictates how computer communicate over networks.
IGMP
Bastion Host
Definition of Protocol
Password Authentication Protocol (PAP)
18. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Remote Access Servers
OSI Layer 3: Network Layer
ThickNet - aka 10base5.
Token Ring (802.5)
19. Type of network layout that separates and group computers logically.
Layers in the TCP/IP Model
Shared Key Authentication (SKA)
VLAN
Wireless Application Protocol (WAP)
20. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Bus Topology
Serial Line Internet Protocol (SLIP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Plenum-rated Cables
21. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Point-To-Point (PPP)
Password Authentication Protocol (PAP)
Metropolitan Area Network (MAN)
Asynchronous Transfer Mode (ATM)
22. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Frame Relay
Noise
Commonly used in Internet.
OSI Layer 6: Presentation
23. 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.
OSI Layer 3: Network Layer
802.11i
Circuit Switching
Proxy Firewall
24. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Bus Topology
Cable Modem
Commonly used in logical bus - Ethernet - token ring.
Layers in the OSI Model
25. 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.
10baseT
Bastion Host
Half-Duplex
Cable Modem
26. 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)
Dual-Homed Firewall
Definition of Protocol
Carrier sense multiple access with collision detection (CSMA/CD)
27. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Full-Duplex
Fiber-optic Cables
Session Initiation Protocol (SIP)
Permanent Virtual Circuit (PVC)
28. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Layer 2 Tunneling Protocol (L2TP)
T3
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 4: Transport Layer
29. 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.
Application Proxy Firewall
Synchronous Optical Networks (SONETS)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber Distributed Data Interface (FDDI)
30. 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
IPv6
Definition of Protocol
Ethernet (802.3)
Multi-protocol Label Switching
31. 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
ICMP (Internet Control Message Protocol)
Synchronous Data Link Control (SDLC)
Ring Topology
32. Protocol for allowing multi-cast (one to many) communication
Loki Attack
IGMP
Ring Topology
Isochronous Communication Processes
33. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Commonly used in Ethernet.
Fiber Distributed Data Interface (FDDI)
Session Initiation Protocol (SIP)
Blue Boxing
34. In a token ring network - each computer is connected to this - which acts as a central hub.
Port Numbers
Multistation Access Unit (MAU)
Reverse Address Resolution Protocol (RARP )
Open System Authentication (OSA)
35. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Frame Relay
Network Address Translator (NAT)
DNS (Domain Name System)
Integrated Services Digital Network (ISDN)
36. 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.
OSI Layer 3: Network Layer
Asynchronous Transfer Mode (ATM)
Spam over Internet Telephony (SPIT)
ARP Poisoning
37. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
Committed Information Rate (CIR)
Attenuation
Distributed Environment Challenge
Full-Duplex
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.
TCP
Simplex: One direction.
Tree Topology
OSI Layer 5: Session Layer
39. 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.
Committed Information Rate (CIR)
Repeaters
Loki Attack
Direct Sequence Spread Spectrum (DSSS)
40. 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
Classless inter-domain routing (CIDR)
UDP
Committed Information Rate (CIR)
OSI Layer 2: Data Link Layer
41. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Layers in the TCP/IP Model
Plenum-rated Cables
Synchronous Communication
Remote Access Servers
42. 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.
Point-To-Point (PPP)
Dedicated Links
OSI Layer 1: Physical
Twisted Pair Cables
43. 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.
Direct Sequence Spread Spectrum (DSSS)
Bastion Host
Application Proxy Firewall
Commonly used in FDDI.
44. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Attenuation
Fiber Distributed Data Interface (FDDI)
Committed Information Rate (CIR)
ARP Poisoning
45. 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
ARP (Address Resolution Protocol)
Ethernet (802.3)
OSI Layer 3: Network Layer
Circuit Level Proxy Firewall
46. 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)
Packet Filtering Firewall
OSI Layer 2: Data Link Layer
Commonly used in Ethernet.
47. 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.
802.11
OSI Layer 7: Application
Asynchronous Communication
Dynamic Packet Filtering
48. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Cable Modem
Asynchronous Communication
Frequency Hopping Spread Spectrum (FHSS)
802.11
49. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Noise
High Level Data Link Control (HLDC)
Star Topology
VoIP
50. Communication devices that determine synchronization scheme before data transmission.
Channel Service Unit/Data Service Unit (CSU/DSU)
Synchronous Communication
Layers in the TCP/IP Model
Crosstalk