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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.
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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. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Commonly used in Ethernet.
Point-To-Point (PPP)
Bluejacking
Loki Attack
2. 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.
SOCKS Firewall
Asynchronous Communication
Wireless Application Protocol (WAP)
Frame Relay
3. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Classless inter-domain routing (CIDR)
Temporal Key Integrity Protocol (TKIP)
Attenuation
Serial Line Internet Protocol (SLIP)
4. Protocol that translates IP address into a MAC address (physical Ethernet address)
VoIP
ARP (Address Resolution Protocol)
Multilevel Switching
802.11
5. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Session Initiation Protocol (SIP)
802.11a
Bluejacking
Cable Modem
6. 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 7: Application
Packet Switching
Source Routing
VLAN
7. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Fiber-optic Cables
Noise
Virtual Private Network (VPN)
Fiber Distributed Data Interface (FDDI)
8. New variant to traditional email spam on VoIP networks.
10baseT
Wired Equivalent Privacy (WEP)
Coaxial Cables
Spam over Internet Telephony (SPIT)
9. Type of cabling problem signals from one wire crossing over to another wire.
Cable Modem
Crosstalk
T3
Dual-Homed Firewall
10. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Private Branch Exchange (PBX)
802.15
Packet Switching
Application Proxy Firewall
11. 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.
Integrated Services Digital Network (ISDN)
Layers in the TCP/IP Model
Wired Equivalent Privacy (WEP)
Ethernet (802.3)
12. In a token ring network - each computer is connected to this - which acts as a central hub.
Crosstalk
Multistation Access Unit (MAU)
VoIP
Metropolitan Area Network (MAN)
13. 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.
Session Initiation Protocol (SIP)
OSI Layer 2: Data Link Layer
OSI Layer 5: Session Layer
Trunk Lines
14. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Application Proxy vs. Circuit Level
Kernel Proxy Firewall
High Level Data Link Control (HLDC)
Reverse Address Resolution Protocol (RARP )
15. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
DNS (Domain Name System)
OSI Layer 3: Network Layer
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Layers in the OSI Model
16. Protocol that translates a MAC address into an IP address.
Packet Filtering Firewall
Stateful Firewall
Plenum-rated Cables
Reverse Address Resolution Protocol (RARP )
17. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
OSI Layer 4: Transport Layer
Frequency Hopping Spread Spectrum (FHSS)
Dual-Homed Firewall
Extensible Authentication Protocol (EAP)
18. 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.
OSI Layer 5: Session Layer
Circuit Switching
Application Proxy vs. Circuit Level
Committed Information Rate (CIR)
19. 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
Router
Password Authentication Protocol (PAP)
802.11b
Synchronous Data Link Control (SDLC)
20. 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
Twisted Pair Cables
OSI Layer 2: Data Link Layer
Blue Boxing
OSI Layer 5: Session Layer
21. 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)
Shared Key Authentication (SKA)
Virtual Private Network (VPN)
Bus Topology
22. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Isochronous Communication Processes
Wide Area Network (WAN)
Classless inter-domain routing (CIDR)
Circuit Level Proxy Firewall
23. Type of network layout that is a large geographical region connecting more that one LAN.
Packet Switching
Wide Area Network (WAN)
Spread Spectrum
DNS (Domain Name System)
24. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Attenuation
Ring Topology
Ethernet (802.3)
25. 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.
Switch
IPSec
Frame Relay
Isochronous Communication Processes
26. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Serial Line Internet Protocol (SLIP)
Mesh Topology
Coaxial Cables
27. 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)
Bus Topology
Proxy Firewall Strengths
ICMP (Internet Control Message Protocol)
28. 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.
Multistation Access Unit (MAU)
Point-To-Point Tunneling Protocol (PPTP)
802.11b
Tree Topology
29. 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.
Point-To-Point (PPP)
Isochronous Communication Processes
Commonly used in Internet.
Star Topology
30. This network technology determines which system will send data based on which one has the token.
Multi-protocol Label Switching
VoIP
Token Passing
DNS (Domain Name System)
31. 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-
Tree Topology
Dual-Homed Firewall
Distributed Environment Challenge
Frequency Hopping Spread Spectrum (FHSS)
32. 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.
Frequency Hopping Spread Spectrum (FHSS)
Fiber-optic Cables
Committed Information Rate (CIR)
Bastion Host
33. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Cable Modem
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 7: Application
FDDI-2
34. Identifys a WLAN. Can be used to segment environments into different WLANS.
CBC-MAC Protocol (CCMP)
Service Set ID (SSID)
Full-Duplex
VLAN
35. 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)
VoIP
Serial Line Internet Protocol (SLIP)
Half-Duplex
36. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
OSI Layer 7: Application
Asynchronous Transfer Mode (ATM)
Channel Service Unit/Data Service Unit (CSU/DSU)
37. 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.
Wireless Application Protocol (WAP)
Commonly used in Internet.
Integrated Services Digital Network (ISDN)
Kernel Proxy Firewall
38. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Trunk Lines
Open System Authentication (OSA)
Application Proxy vs. Circuit Level
UDP
39. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Bastion Host
Tree Topology
Synchronous Optical Networks (SONETS)
40. Communication devices that determine synchronization scheme before data transmission.
Port Numbers
Service Set ID (SSID)
Frame Relay
Synchronous Communication
41. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
LLC (Logical Link Control - 802.2)
TCP
ARP (Address Resolution Protocol)
42. 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.
Coaxial Cables
X.25
Router
Application Proxy Firewall
43. 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.
Router
Circuit Switching
Token Ring (802.5)
Circuit Level Proxy Firewall
44. 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.
Subnetting
Metropolitan Area Network (MAN)
OSI Data encapsulation
Packet Filtering Firewall
45. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Session Initiation Protocol (SIP)
Simplex: One direction.
ARP (Address Resolution Protocol)
Bus Topology
46. 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.
Serial Line Internet Protocol (SLIP)
Wireless Application Protocol (WAP)
Asynchronous Transfer Mode (ATM)
Private Branch Exchange (PBX)
47. Problems: Requires more expense in cabling and extra effort to track down cable faults.
T1
Kernel Proxy Firewall
Mesh Topology
OSI Layer 3: Network Layer
48. Standard that outlines wireless personal area network (WPAN) technologies.
Frequency Hopping Spread Spectrum (FHSS)
802.15
Crosstalk
OSI Data encapsulation
49. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
ICMP (Internet Control Message Protocol)
Bus Topology
Noise
Digital Subscriber Line (DSL)
50. 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.
Metropolitan Area Network (MAN)
DNS (Domain Name System)
Serial Line Internet Protocol (SLIP)
Packet Filtering Firewall
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