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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.
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. 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
DNS (Domain Name System)
X.25
Synchronous Data Link Control (SDLC)
OSI Layer 2: Data Link Layer
2. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
VoIP
Dual-Homed Firewall
IPv6
Extensible Authentication Protocol (EAP)
3. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
ARP (Address Resolution Protocol)
Commonly used in FDDI.
Switched Virtual Circuit (SVC)
802.11
4. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
Multistation Access Unit (MAU)
Committed Information Rate (CIR)
VoIP
5. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Commonly used in Ethernet.
Trunk Lines
Mesh Topology
802.11a
6. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Service Set ID (SSID)
ThinNet - aka 10base2
Port Numbers
Point-To-Point (PPP)
7. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Packet Filtering Firewall
Plenum-rated Cables
Serial Line Internet Protocol (SLIP)
Layer 2 Tunneling Protocol (L2TP)
8. 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 )
Trunk Lines
Proxy Firewall Strengths
Digital Subscriber Line (DSL)
9. 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.
Circuit Switching
Channel Service Unit/Data Service Unit (CSU/DSU)
Frequency Hopping Spread Spectrum (FHSS)
Serial Line Internet Protocol (SLIP)
10. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Proxy Firewall
OSI Layer 7: Application
802.11i
Plenum-rated Cables
11. 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
Multi-protocol Label Switching
Classless inter-domain routing (CIDR)
Iterated Association
DOS attacks from flooding
12. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Point-To-Point Tunneling Protocol (PPTP)
OSI Layer 3: Network Layer
Cable Modem
13. 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.
Tree Topology
Mesh Topology
Application Proxy vs. Circuit Level
802.11
14. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Port Numbers
OSI Layer 7: Application
Fiber-optic Cables
VoIP
15. 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.
Packet Filtering Firewall
Temporal Key Integrity Protocol (TKIP)
Token Ring (802.5)
OSI Layer 6: Presentation
16. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Channel Service Unit/Data Service Unit (CSU/DSU)
Classless inter-domain routing (CIDR)
Definition of Protocol
Remote Access Servers
17. Protocol that translates a MAC address into an IP address.
Point-To-Point Tunneling Protocol (PPTP)
Switch
Extensible Authentication Protocol (EAP)
Reverse Address Resolution Protocol (RARP )
18. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Switched Virtual Circuit (SVC)
Classless inter-domain routing (CIDR)
Coaxial Cables
Kernel Proxy Firewall
19. 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.
Commonly used in logical bus - Ethernet - token ring.
Coaxial Cables
OSI Layer 7: Application
Cable Modem
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
OSI Layer 2: Data Link Layer
10baseT
Definition of Protocol
OSI Layer 6: Presentation
21. 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
Crosstalk
ThinNet - aka 10base2
Dual-Homed Firewall
22. Protocol for allowing multi-cast (one to many) communication
OSI Layer 1: Physical
Digital Subscriber Line (DSL)
IGMP
Point-To-Point (PPP)
23. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Remote Access Servers
Simplex: One direction.
Trunk Lines
Permanent Virtual Circuit (PVC)
24. 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.
Mesh Topology
Router
ThinNet - aka 10base2
Ethernet (802.3)
25. 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.
Isochronous Communication Processes
ThickNet - aka 10base5.
Classless inter-domain routing (CIDR)
ICMP (Internet Control Message Protocol)
26. Both directions - only one application can send information at a time
Attenuation
Bridge
Star Topology
Half-Duplex
27. Type of network layout that is a large geographical region connecting more that one LAN.
Attenuation
High Level Data Link Control (HLDC)
Application Proxy Firewall
Wide Area Network (WAN)
28. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Asynchronous Transfer Mode (ATM)
Committed Information Rate (CIR)
Ethernet (802.3)
29. 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.
Bridge
Router
Dynamic Packet Filtering
802.11a
30. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Multi-protocol Label Switching
DNS (Domain Name System)
Wired Equivalent Privacy (WEP)
Subnetting
31. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Asynchronous Communication
LLC (Logical Link Control - 802.2)
OSI Data encapsulation
TCP
32. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
DNS (Domain Name System)
Commonly used in logical bus - Ethernet - token ring.
Ring Topology
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
33. Type of cabling problem signals from one wire crossing over to another wire.
DOS attacks from flooding
Crosstalk
Packet Filtering Firewall
DNS (Domain Name System)
34. 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
Fiber-optic Cables
Stateful Firewall
Switch
ThinNet - aka 10base2
35. 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
Token Passing
VLAN
Star Topology
36. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Iterated Association
Synchronous Optical Networks (SONETS)
Temporal Key Integrity Protocol (TKIP)
Repeaters
37. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Bastion Host
Shared Key Authentication (SKA)
Application Proxy vs. Circuit Level
Service Set ID (SSID)
38. 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.
Packet Filtering Firewall
UDP
OSI Data encapsulation
39. 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.
Commonly used in Ethernet.
Asynchronous Communication
Reverse Address Resolution Protocol (RARP )
Channel Service Unit/Data Service Unit (CSU/DSU)
40. 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.
IGMP
Port Numbers
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Fiber-optic Cables
41. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Bus Topology
Loki Attack
OSI Layer 1: Physical
42. 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.
Layers in the TCP/IP Model
802.11b
802.11a
X.25
43. 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)
OSI Layer 2: Data Link Layer
LLC (Logical Link Control - 802.2)
802.11a
44. SMTP server that is configured for sending email from any source to and destination.
Star Topology
Open Relay
Service Set ID (SSID)
Attenuation
45. 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
Synchronous Communication
Screened Sub-Net
Noise
Private Branch Exchange (PBX)
46. 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
Cable Modem
Bluejacking
Synchronous Optical Networks (SONETS)
47. 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.
Mesh Topology
OSI Data encapsulation
TCP
Attenuation
48. 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.
Circuit Level Proxy Firewall
Wireless Application Protocol (WAP)
Proxy Firewall Strengths
Port Numbers
49. 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.
Attenuation
Integrated Services Digital Network (ISDN)
Tree Topology
TCP
50. 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)
Definition of Protocol
802.15
Spam over Internet Telephony (SPIT)