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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 LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Application Proxy Firewall
Fiber Distributed Data Interface (FDDI)
Stateful Firewall
OSI Layer 5: Session Layer
2. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
Wired Equivalent Privacy (WEP)
Open System Authentication (OSA)
Permanent Virtual Circuit (PVC)
3. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
VoIP
DNS (Domain Name System)
802.11i
Layer 2 Tunneling Protocol (L2TP)
4. SMTP server that is configured for sending email from any source to and destination.
Bridge
Open Relay
Distributed Environment Challenge
Simplex: One direction.
5. 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.
Frame Relay
LLC (Logical Link Control - 802.2)
Ethernet (802.3)
Committed Information Rate (CIR)
6. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Synchronous Communication
Circuit Level Proxy Firewall
IGMP
Multilevel Switching
7. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Channel Service Unit/Data Service Unit (CSU/DSU)
Bastion Host
ICMP (Internet Control Message Protocol)
Bluejacking
8. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
Wireless Application Protocol (WAP)
Private Branch Exchange (PBX)
Packet Filtering Firewall
9. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Committed Information Rate (CIR)
Classless inter-domain routing (CIDR)
Multilevel Switching
IPv6
10. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Packet Switching
Port Numbers
Subnetting
Challenge Handshake Authentication Protocol (CHAP)
11. 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.
Router
Fiber Distributed Data Interface (FDDI)
Point-To-Point (PPP)
Extensible Authentication Protocol (EAP)
12. 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).
Switched Virtual Circuit (SVC)
Temporal Key Integrity Protocol (TKIP)
ICMP (Internet Control Message Protocol)
IPSec
13. 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.
Cable Modem
Circuit Switching
Shared Key Authentication (SKA)
Attenuation
14. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
802.16
OSI Layer 6: Presentation
802.11i
Packet Filtering Firewall
15. 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.
Frequency Hopping Spread Spectrum (FHSS)
Bastion Host
Proxy Firewall
16. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Point-To-Point Tunneling Protocol (PPTP)
Frequency Hopping Spread Spectrum (FHSS)
802.11
Asynchronous Communication
17. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Definition of Protocol
LLC (Logical Link Control - 802.2)
Commonly used in FDDI.
Cable Modem
18. 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.
Isochronous Communication Processes
Frame Relay
Circuit Level Proxy Firewall
CBC-MAC Protocol (CCMP)
19. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
CBC-MAC Protocol (CCMP)
Multilevel Switching
T1
20. Both directions - only one application can send information at a time
Screened Sub-Net
Full-Duplex
Synchronous Optical Networks (SONETS)
Half-Duplex
21. 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)
Repeaters
ARP Poisoning
Port Numbers
22. 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.
Layers in the TCP/IP Model
802.11a
Cable Modem
Serial Line Internet Protocol (SLIP)
23. 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
Direct Sequence Spread Spectrum (DSSS)
Proxy Firewall Strengths
Permanent Virtual Circuit (PVC)
10baseT
24. 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.
OSI Layer 1: Physical
Synchronous Optical Networks (SONETS)
Simplex: One direction.
Commonly used in Internet.
25. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Open Relay
Star Topology
Service Set ID (SSID)
Layers in the OSI Model
26. 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.
Bridge
Direct Sequence Spread Spectrum (DSSS)
Half-Duplex
Point-To-Point (PPP)
27. 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
Source Routing
Switch
TCP
Isochronous Communication Processes
28. In a token ring network - each computer is connected to this - which acts as a central hub.
VoIP
Multistation Access Unit (MAU)
Crosstalk
TCP
29. 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
Frame Relay
Simplex: One direction.
UDP
Multi-protocol Label Switching
30. 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.
Repeaters
Asynchronous Transfer Mode (ATM)
OSI Layer 2: Data Link Layer
Virtual Private Network (VPN)
31. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Ethernet (802.3)
Iterated Association
Application Proxy vs. Circuit Level
Kernel Proxy Firewall
32. 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
Star Topology
802.11
Layers in the TCP/IP Model
33. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Reverse Address Resolution Protocol (RARP )
Noise
OSI Layer 7: Application
10baseT
34. 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.
Wireless Application Protocol (WAP)
Spread Spectrum
Bastion Host
OSI Layer 5: Session Layer
35. New variant to traditional email spam on VoIP networks.
Ring Topology
Metropolitan Area Network (MAN)
Commonly used in Internet.
Spam over Internet Telephony (SPIT)
36. 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.
OSI Layer 3: Network Layer
Dual-Homed Firewall
Port Numbers
Layers in the TCP/IP Model
37. 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)
Ring Topology
Remote Access Servers
Shared Key Authentication (SKA)
38. 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.
Application Proxy Firewall
Distributed Environment Challenge
ICMP (Internet Control Message Protocol)
Dedicated Links
39. Wireless communication that distributes individual signals across the allocated frequencies.
High Level Data Link Control (HLDC)
Layers in the TCP/IP Model
Spread Spectrum
Pulse Code Modulation (PCM)
40. 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.
Switch
IPSec
T1
Packet Filtering Firewall
41. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
VLAN
Commonly used in logical bus - Ethernet - token ring.
Application Proxy Firewall
OSI Layer 6: Presentation
42. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
Synchronous Communication
Layers in the TCP/IP Model
Session Initiation Protocol (SIP)
43. Problems: Central device is a single point of failure.
Bluejacking
Multilevel Switching
Permanent Virtual Circuit (PVC)
Star Topology
44. 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.
Layers in the OSI Model
Loki Attack
Carrier sense multiple access with collision detection (CSMA/CD)
ICMP (Internet Control Message Protocol)
45. In the OSI layer 5 - these are the types of what?
Channel Service Unit/Data Service Unit (CSU/DSU)
802.11
OSI Layer 5: Session Layer
Simplex: One direction.
46. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
VoIP
Commonly used in FDDI.
Simplex: One direction.
Temporal Key Integrity Protocol (TKIP)
47. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Digital Subscriber Line (DSL)
Password Authentication Protocol (PAP)
Circuit Switching
Commonly used in logical bus - Ethernet - token ring.
48. Set of rules that dictates how computer communicate over networks.
T1
Password Authentication Protocol (PAP)
Blue Boxing
Definition of Protocol
49. 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.
Frame Relay
Plenum-rated Cables
OSI Layer 6: Presentation
CBC-MAC Protocol (CCMP)
50. 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
Spread Spectrum
Multistation Access Unit (MAU)
Multilevel Switching