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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. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
DOS attacks from flooding
Isochronous Communication Processes
Bus Topology
DNS (Domain Name System)
2. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Remote Access Servers
Cable Modem
Permanent Virtual Circuit (PVC)
Trunk Lines
3. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Application Proxy Firewall
Classless inter-domain routing (CIDR)
Stateful Firewall
4. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Mesh Topology
Packet Switching
OSI Layer 4: Transport Layer
Network Address Translator (NAT)
5. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
X.25
Crosstalk
DNS (Domain Name System)
Serial Line Internet Protocol (SLIP)
6. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
SOCKS Firewall
CBC-MAC Protocol (CCMP)
Asynchronous Transfer Mode (ATM)
7. 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
OSI Layer 1: Physical
SOCKS Firewall
Trunk Lines
8. 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.
Shared Key Authentication (SKA)
Commonly used in Ethernet.
Layers in the OSI Model
OSI Layer 5: Session Layer
9. 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
Reverse Address Resolution Protocol (RARP )
Cable Modem
Proxy Firewall Strengths
TCP
10. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
SOCKS Firewall
Mesh Topology
Port Numbers
Trunk Lines
11. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Private Branch Exchange (PBX)
Layers in the OSI Model
Synchronous Communication
Blue Boxing
12. 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.
OSI Layer 6: Presentation
Open System Authentication (OSA)
ICMP (Internet Control Message Protocol)
802.11a
13. 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.
Spread Spectrum
Frame Relay
Distributed Environment Challenge
Point-To-Point Tunneling Protocol (PPTP)
14. 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.
OSI Layer 4: Transport Layer
Tree Topology
Coaxial Cables
Classless inter-domain routing (CIDR)
15. In a token ring network - each computer is connected to this - which acts as a central hub.
Spread Spectrum
Subnetting
Multistation Access Unit (MAU)
Integrated Services Digital Network (ISDN)
16. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Permanent Virtual Circuit (PVC)
Application Proxy vs. Circuit Level
Trunk Lines
Coaxial Cables
17. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
VoIP
FDDI-2
Virtual Private Network (VPN)
802.11a
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.
Iterated Association
Dedicated Links
Asynchronous Communication
OSI Layer 4: Transport Layer
19. 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.
Private Branch Exchange (PBX)
Synchronous Optical Networks (SONETS)
Asynchronous Communication
OSI Layer 4: Transport Layer
20. 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.
Bluejacking
Router
Session Initiation Protocol (SIP)
Packet Switching
21. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Asynchronous Transfer Mode (ATM)
Kernel Proxy Firewall
Virtual Private Network (VPN)
Synchronous Optical Networks (SONETS)
22. 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.
Simplex: One direction.
Ring Topology
T3
Frame Relay
23. 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.
Attenuation
TCP
Spread Spectrum
Source Routing
24. 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.
X.25
Blue Boxing
Bridge
Multilevel Switching
25. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
T1
OSI Data encapsulation
Spread Spectrum
SOCKS Firewall
26. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Synchronous Data Link Control (SDLC)
Point-To-Point (PPP)
Service Set ID (SSID)
Blue Boxing
27. 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
Circuit Level Proxy Firewall
Network Address Translator (NAT)
Synchronous Data Link Control (SDLC)
Source Routing
28. 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).
802.16
IPSec
SOCKS Firewall
Asynchronous Transfer Mode (ATM)
29. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Ethernet (802.3)
Tree Topology
Commonly used in logical bus - Ethernet - token ring.
Token Ring (802.5)
30. Type of wireless security standard that uses AES in CBC mode.
CBC-MAC Protocol (CCMP)
Direct Sequence Spread Spectrum (DSSS)
Shared Key Authentication (SKA)
OSI Data encapsulation
31. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Channel Service Unit/Data Service Unit (CSU/DSU)
Commonly used in logical bus - Ethernet - token ring.
ThickNet - aka 10base5.
Point-To-Point Tunneling Protocol (PPTP)
32. Type of network layout that is a large geographical region connecting more that one LAN.
Simplex: One direction.
OSI Layer 5: Session Layer
Wide Area Network (WAN)
Source Routing
33. 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.
10baseT
High Level Data Link Control (HLDC)
Asynchronous Communication
Fiber Distributed Data Interface (FDDI)
34. Protocol for allowing multi-cast (one to many) communication
Committed Information Rate (CIR)
IGMP
Shared Key Authentication (SKA)
Loki Attack
35. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Commonly used in Internet.
Plenum-rated Cables
Switch
Blue Boxing
36. 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.
Full-Duplex
Metropolitan Area Network (MAN)
Spread Spectrum
Session Initiation Protocol (SIP)
37. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Circuit Level Proxy Firewall
Proxy Firewall Strengths
Multi-protocol Label Switching
Iterated Association
38. 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
Twisted Pair Cables
OSI Layer 4: Transport Layer
Packet Switching
Packet Filtering Firewall
39. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Challenge Handshake Authentication Protocol (CHAP)
Remote Access Servers
Bridge
Noise
40. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Multi-protocol Label Switching
Dual-Homed Firewall
Packet Switching
Subnetting
41. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
Multi-protocol Label Switching
Layers in the TCP/IP Model
LLC (Logical Link Control - 802.2)
Iterated Association
42. 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
Ethernet (802.3)
802.11i
Circuit Switching
Private Branch Exchange (PBX)
43. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
IPv6
Service Set ID (SSID)
OSI Layer 1: Physical
Layers in the TCP/IP Model
44. 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.
Crosstalk
Direct Sequence Spread Spectrum (DSSS)
OSI Layer 5: Session Layer
Session Initiation Protocol (SIP)
45. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber-optic Cables
Pulse Code Modulation (PCM)
Bluejacking
46. 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.
Circuit Level Proxy Firewall
Integrated Services Digital Network (ISDN)
OSI Layer 1: Physical
Frame Relay
47. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Bridge
Permanent Virtual Circuit (PVC)
Commonly used in FDDI.
Ring Topology
48. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Bridge
Fiber-optic Cables
OSI Layer 7: Application
Commonly used in logical bus - Ethernet - token ring.
49. 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.
High Level Data Link Control (HLDC)
Attenuation
Packet Filtering Firewall
Point-To-Point (PPP)
50. 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)
802.15
Carrier sense multiple access with collision detection (CSMA/CD)
Dual-Homed Firewall