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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 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.
Commonly used in Ethernet.
Direct Sequence Spread Spectrum (DSSS)
Stateful Firewall
Application Proxy Firewall
2. 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.
Synchronous Optical Networks (SONETS)
IPSec
Loki Attack
Ethernet (802.3)
3. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Twisted Pair Cables
Switch
Stateful Firewall
4. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
SPIM
Remote Access Servers
Kernel Proxy Firewall
T1
5. 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.
Port Numbers
Synchronous Communication
Router
Token Ring (802.5)
6. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Pulse Code Modulation (PCM)
Commonly used in logical bus - Ethernet - token ring.
VoIP
Switched Virtual Circuit (SVC)
7. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
Plenum-rated Cables
Dedicated Links
802.11b
OSI Layer 3: Network Layer
8. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Cable Modem
OSI Layer 3: Network Layer
ARP Poisoning
Attenuation
9. 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.
Frame Relay
Layer 2 Tunneling Protocol (L2TP)
Stateful Firewall
Metropolitan Area Network (MAN)
10. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Switched Virtual Circuit (SVC)
Commonly used in logical bus - Ethernet - token ring.
Synchronous Data Link Control (SDLC)
OSI Layer 5: Session Layer
11. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Port Numbers
Switched Virtual Circuit (SVC)
Bus Topology
Source Routing
12. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
OSI Layer 7: Application
Noise
ARP (Address Resolution Protocol)
Direct Sequence Spread Spectrum (DSSS)
13. 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
Port Numbers
802.11a
OSI Layer 3: Network Layer
Commonly used in logical bus - Ethernet - token ring.
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.
Virtual Private Network (VPN)
Session Initiation Protocol (SIP)
Commonly used in Ethernet.
Distributed Environment Challenge
15. New variant to traditional email spam on VoIP networks.
Spam over Internet Telephony (SPIT)
Point-To-Point (PPP)
IPSec
Session Initiation Protocol (SIP)
16. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Point-To-Point (PPP)
Session Initiation Protocol (SIP)
Subnetting
Serial Line Internet Protocol (SLIP)
17. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Digital Subscriber Line (DSL)
Switched Virtual Circuit (SVC)
Challenge Handshake Authentication Protocol (CHAP)
Multi-protocol Label Switching
18. 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.
Reverse Address Resolution Protocol (RARP )
Circuit Switching
Private Branch Exchange (PBX)
X.25
19. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Password Authentication Protocol (PAP)
Screened Host Firewall
Application Proxy Firewall
UDP
20. 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.
Loki Attack
Trunk Lines
Source Routing
Shared Key Authentication (SKA)
21. In a token ring network - each computer is connected to this - which acts as a central hub.
OSI Layer 6: Presentation
Multistation Access Unit (MAU)
Plenum-rated Cables
Proxy Firewall
22. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.
OSI Layer 6: Presentation
ThickNet - aka 10base5.
Star Topology
Wired Equivalent Privacy (WEP)
23. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Remote Access Servers
Dynamic Packet Filtering
Shared Key Authentication (SKA)
Token Ring (802.5)
24. 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).
Crosstalk
Digital Subscriber Line (DSL)
IPSec
Ring Topology
25. 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
Bluejacking
Multi-protocol Label Switching
OSI Layer 5: Session Layer
Packet Switching
26. 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.
Asynchronous Transfer Mode (ATM)
802.11
Token Ring (802.5)
Dedicated Links
27. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
DOS attacks from flooding
Tree Topology
802.15
Ring Topology
28. 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
Spam over Internet Telephony (SPIT)
Stateful Firewall
Full-Duplex
29. Spam over IM
10baseT
SPIM
Serial Line Internet Protocol (SLIP)
Fiber Distributed Data Interface (FDDI)
30. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Extensible Authentication Protocol (EAP)
OSI Layer 3: Network Layer
Isochronous Communication Processes
Open System Authentication (OSA)
31. 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.
Iterated Association
OSI Layer 5: Session Layer
Layers in the TCP/IP Model
Screened Host Firewall
32. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Synchronous Optical Networks (SONETS)
TCP
Switched Virtual Circuit (SVC)
OSI Layer 7: Application
33. Type of network layout that is a large geographical region connecting more that one LAN.
Packet Filtering Firewall
Digital Subscriber Line (DSL)
Wide Area Network (WAN)
Commonly used in FDDI.
34. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
ARP (Address Resolution Protocol)
Wireless Application Protocol (WAP)
Distributed Environment Challenge
Packet Filtering Firewall
35. 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.
Router
Metropolitan Area Network (MAN)
Full-Duplex
Ethernet (802.3)
36. 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.
Wired Equivalent Privacy (WEP)
Screened Sub-Net
Frame Relay
Asynchronous Transfer Mode (ATM)
37. 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).
Spread Spectrum
Iterated Association
DOS attacks from flooding
Channel Service Unit/Data Service Unit (CSU/DSU)
38. 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.
LLC (Logical Link Control - 802.2)
Private Branch Exchange (PBX)
Frame Relay
Direct Sequence Spread Spectrum (DSSS)
39. 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.
Dynamic Packet Filtering
802.11b
Metropolitan Area Network (MAN)
VLAN
40. 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
Asynchronous Communication
Point-To-Point (PPP)
Switched Virtual Circuit (SVC)
41. This network technology determines which system will send data based on which one has the token.
Port Numbers
Token Passing
Frame Relay
Channel Service Unit/Data Service Unit (CSU/DSU)
42. 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.
Layers in the OSI Model
Carrier sense multiple access with collision detection (CSMA/CD)
Token Passing
Packet Filtering Firewall
43. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Commonly used in FDDI.
Layers in the TCP/IP Model
Fiber-optic Cables
Kernel Proxy Firewall
44. Set of rules that dictates how computer communicate over networks.
X.25
Pulse Code Modulation (PCM)
Proxy Firewall
Definition of Protocol
45. 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 5: Session Layer
Proxy Firewall
Synchronous Communication
Synchronous Data Link Control (SDLC)
46. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Direct Sequence Spread Spectrum (DSSS)
Service Set ID (SSID)
Application Proxy Firewall
47. 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.
Point-To-Point Tunneling Protocol (PPTP)
Private Branch Exchange (PBX)
Fiber Distributed Data Interface (FDDI)
Packet Filtering Firewall
48. Wireless communication that distributes individual signals across the allocated frequencies.
Switch
Synchronous Data Link Control (SDLC)
Spread Spectrum
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
49. Communication devices that determine synchronization scheme before data transmission.
Bus Topology
Synchronous Communication
Layers in the OSI Model
Attenuation
50. 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
IPv6
Noise
Commonly used in FDDI.