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Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
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. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Carrier sense multiple access with collision detection (CSMA/CD)
Tree Topology
SOCKS Firewall
Session Initiation Protocol (SIP)
2. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Committed Information Rate (CIR)
Noise
Point-To-Point Tunneling Protocol (PPTP)
3. 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)
Remote Access Servers
Asynchronous Communication
OSI Layer 2: Data Link Layer
4. Type of wireless security standard that uses AES in CBC mode.
Multi-protocol Label Switching
Asynchronous Transfer Mode (ATM)
CBC-MAC Protocol (CCMP)
ARP Poisoning
5. 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.
Attenuation
802.11a
10baseT
Point-To-Point Tunneling Protocol (PPTP)
6. 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 3: Network Layer
T3
Tree Topology
Full-Duplex
7. 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.
Asynchronous Transfer Mode (ATM)
OSI Data encapsulation
Loki Attack
Integrated Services Digital Network (ISDN)
8. 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
Packet Switching
Commonly used in FDDI.
VoIP
VLAN
9. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
Wired Equivalent Privacy (WEP)
Half-Duplex
Temporal Key Integrity Protocol (TKIP)
10. 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.
Bluejacking
IPSec
Repeaters
Switch
11. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
IPSec
Carrier sense multiple access with collision detection (CSMA/CD)
TCP
Point-To-Point (PPP)
12. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
802.11b
Permanent Virtual Circuit (PVC)
SOCKS Firewall
IGMP
13. 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.
Virtual Private Network (VPN)
Proxy Firewall
OSI Layer 2: Data Link Layer
Packet Filtering Firewall
14. 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.
OSI Layer 2: Data Link Layer
Multilevel Switching
Synchronous Optical Networks (SONETS)
Half-Duplex
15. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Switch
Switched Virtual Circuit (SVC)
T1
ThinNet - aka 10base2
16. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
Layer 2 Tunneling Protocol (L2TP)
Spread Spectrum
17. 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.
Wide Area Network (WAN)
X.25
Crosstalk
Noise
18. 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.
Bridge
Shared Key Authentication (SKA)
Point-To-Point (PPP)
Frame Relay
19. Both directions - both applications can send information at a time. Session Layer Communication Modes
Packet Filtering Firewall
Token Passing
Full-Duplex
Crosstalk
20. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Bastion Host
802.16
Source Routing
Open System Authentication (OSA)
21. 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.
ThinNet - aka 10base2
Packet Filtering Firewall
Digital Subscriber Line (DSL)
ARP Poisoning
22. 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)
Coaxial Cables
Ethernet (802.3)
Synchronous Communication
23. Wireless standard that will improve security of wireless communication
Open Relay
VLAN
802.11i
Virtual Private Network (VPN)
24. 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.
Synchronous Communication
Integrated Services Digital Network (ISDN)
Pulse Code Modulation (PCM)
Packet Switching
25. 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.
Synchronous Data Link Control (SDLC)
Committed Information Rate (CIR)
Fiber-optic Cables
802.11b
26. Communication devices that determine synchronization scheme before data transmission.
Dual-Homed Firewall
Synchronous Communication
Bus Topology
IPv6
27. Type of network layout that is a large geographical region connecting more that one LAN.
Commonly used in FDDI.
Multi-protocol Label Switching
Loki Attack
Wide Area Network (WAN)
28. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Pulse Code Modulation (PCM)
Wired Equivalent Privacy (WEP)
OSI Layer 3: Network Layer
Multilevel Switching
29. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Point-To-Point Tunneling Protocol (PPTP)
Fiber Distributed Data Interface (FDDI)
Packet Filtering Firewall
Screened Host Firewall
30. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
Trunk Lines
Packet Filtering Firewall
Wide Area Network (WAN)
31. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Point-To-Point (PPP)
OSI Layer 6: Presentation
Channel Service Unit/Data Service Unit (CSU/DSU)
32. 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
Synchronous Data Link Control (SDLC)
Attenuation
Integrated Services Digital Network (ISDN)
Synchronous Communication
33. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
10baseT
802.11a
CBC-MAC Protocol (CCMP)
Proxy Firewall Strengths
34. Standard that addresses wireless MAN technologies.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
802.16
Bridge
Port Numbers
35. New variant to traditional email spam on VoIP networks.
Spam over Internet Telephony (SPIT)
Commonly used in Internet.
Proxy Firewall
Carrier sense multiple access with collision detection (CSMA/CD)
36. 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).
OSI Layer 4: Transport Layer
Channel Service Unit/Data Service Unit (CSU/DSU)
Asynchronous Communication
IGMP
37. 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.
Committed Information Rate (CIR)
Cable Modem
Noise
Application Proxy Firewall
38. 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.
Fiber-optic Cables
Channel Service Unit/Data Service Unit (CSU/DSU)
Asynchronous Communication
OSI Layer 2: Data Link Layer
39. 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.
Commonly used in FDDI.
Token Ring (802.5)
Isochronous Communication Processes
LLC (Logical Link Control - 802.2)
40. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Loki Attack
ARP (Address Resolution Protocol)
Channel Service Unit/Data Service Unit (CSU/DSU)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
41. 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.
Distributed Environment Challenge
Ethernet (802.3)
Packet Filtering Firewall
Circuit Switching
42. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
FDDI-2
Port Numbers
Service Set ID (SSID)
VoIP
43. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
Wireless Application Protocol (WAP)
Packet Filtering Firewall
Bastion Host
44. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Attenuation
Distributed Environment Challenge
ICMP (Internet Control Message Protocol)
Open Relay
45. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
DNS (Domain Name System)
Coaxial Cables
Subnetting
Committed Information Rate (CIR)
46. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Wireless Application Protocol (WAP)
ThickNet - aka 10base5.
UDP
Bus Topology
47. This network technology determines which system will send data based on which one has the token.
Fiber Distributed Data Interface (FDDI)
Token Passing
X.25
Fiber-optic Cables
48. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
OSI Layer 5: Session Layer
TCP
Point-To-Point (PPP)
Screened Host Firewall
49. 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.
Circuit Level Proxy Firewall
Challenge Handshake Authentication Protocol (CHAP)
Proxy Firewall
Subnetting
50. 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.
Commonly used in FDDI.
LLC (Logical Link Control - 802.2)
ThinNet - aka 10base2
Bluejacking