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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
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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. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Wired Equivalent Privacy (WEP)
ThickNet - aka 10base5.
802.11a
2. 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.
Packet Filtering Firewall
Application Proxy vs. Circuit Level
Application Proxy Firewall
802.11b
3. Both directions - both applications can send information at a time. Session Layer Communication Modes
T3
Multilevel Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Full-Duplex
4. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Commonly used in Ethernet.
Classless inter-domain routing (CIDR)
Multi-protocol Label Switching
CBC-MAC Protocol (CCMP)
5. 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.
Dual-Homed Firewall
Spam over Internet Telephony (SPIT)
Integrated Services Digital Network (ISDN)
Multi-protocol Label Switching
6. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
OSI Layer 4: Transport Layer
Commonly used in FDDI.
Packet Filtering Firewall
7. 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.
Asynchronous Communication
Integrated Services Digital Network (ISDN)
SPIM
OSI Layer 6: Presentation
8. 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.
Asynchronous Transfer Mode (ATM)
Trunk Lines
Virtual Private Network (VPN)
Router
9. 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.
IPv6
OSI Layer 2: Data Link Layer
Switch
Synchronous Optical Networks (SONETS)
10. Type of wireless security standard that uses AES in CBC mode.
IGMP
Commonly used in Ethernet.
Wide Area Network (WAN)
CBC-MAC Protocol (CCMP)
11. 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.
Frame Relay
Simplex: One direction.
Packet Switching
Trunk Lines
12. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Half-Duplex
FDDI-2
Asynchronous Transfer Mode (ATM)
Kernel Proxy Firewall
13. 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-
Frequency Hopping Spread Spectrum (FHSS)
Kernel Proxy Firewall
Layer 2 Tunneling Protocol (L2TP)
Commonly used in Ethernet.
14. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.
Private Branch Exchange (PBX)
Remote Access Servers
Twisted Pair Cables
Proxy Firewall
15. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Virtual Private Network (VPN)
Distributed Environment Challenge
IGMP
16. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Digital Subscriber Line (DSL)
802.16
Serial Line Internet Protocol (SLIP)
Token Ring (802.5)
17. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
Integrated Services Digital Network (ISDN)
Frame Relay
Fiber Distributed Data Interface (FDDI)
ARP Poisoning
18. 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.
Session Initiation Protocol (SIP)
Digital Subscriber Line (DSL)
Synchronous Optical Networks (SONETS)
Proxy Firewall Strengths
19. Identifys a WLAN. Can be used to segment environments into different WLANS.
Service Set ID (SSID)
OSI Layer 6: Presentation
Wireless Application Protocol (WAP)
UDP
20. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Isochronous Communication Processes
Bus Topology
Network Address Translator (NAT)
Committed Information Rate (CIR)
21. 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.
Classless inter-domain routing (CIDR)
Bridge
Bastion Host
Point-To-Point Tunneling Protocol (PPTP)
22. New variant to traditional email spam on VoIP networks.
Switch
Spam over Internet Telephony (SPIT)
Application Proxy vs. Circuit Level
Circuit Level Proxy Firewall
23. 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.
Packet Filtering Firewall
VoIP
Multilevel Switching
Virtual Private Network (VPN)
24. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Twisted Pair Cables
Application Proxy Firewall
Session Initiation Protocol (SIP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
25. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
OSI Layer 4: Transport Layer
DNS (Domain Name System)
High Level Data Link Control (HLDC)
26. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
Stateful Firewall
Dynamic Packet Filtering
Frequency Hopping Spread Spectrum (FHSS)
Multilevel Switching
27. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Packet Filtering Firewall
Layers in the OSI Model
Bus Topology
Ethernet (802.3)
28. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Cable Modem
Commonly used in logical bus - Ethernet - token ring.
Bastion Host
OSI Layer 5: Session Layer
29. 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.
SPIM
Fiber-optic Cables
Source Routing
Kernel Proxy Firewall
30. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Half-Duplex
T1
TCP
Noise
31. Both directions - only one application can send information at a time
Port Numbers
Half-Duplex
Distributed Environment Challenge
Multi-protocol Label Switching
32. Protocol for allowing multi-cast (one to many) communication
Layer 2 Tunneling Protocol (L2TP)
Attenuation
OSI Layer 7: Application
IGMP
33. 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.
802.11a
Asynchronous Communication
Circuit Switching
Crosstalk
34. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
DOS attacks from flooding
Network Address Translator (NAT)
ARP Poisoning
Ethernet (802.3)
35. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Point-To-Point (PPP)
Crosstalk
IPv6
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
36. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Password Authentication Protocol (PAP)
802.11a
Bastion Host
Metropolitan Area Network (MAN)
37. 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.
Source Routing
Temporal Key Integrity Protocol (TKIP)
Multi-protocol Label Switching
UDP
38. 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.
Screened Sub-Net
802.11a
SOCKS Firewall
OSI Layer 4: Transport Layer
39. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Ethernet.
Source Routing
Metropolitan Area Network (MAN)
Commonly used in Internet.
40. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Circuit Level Proxy Firewall
Channel Service Unit/Data Service Unit (CSU/DSU)
802.15
Permanent Virtual Circuit (PVC)
41. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Proxy Firewall
Full-Duplex
Fiber Distributed Data Interface (FDDI)
Committed Information Rate (CIR)
42. 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.
802.11i
VoIP
OSI Layer 4: Transport Layer
Asynchronous Transfer Mode (ATM)
43. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
SPIM
Distributed Environment Challenge
Layers in the OSI Model
Subnetting
44. 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
Point-To-Point Tunneling Protocol (PPTP)
Layers in the TCP/IP Model
Digital Subscriber Line (DSL)
Private Branch Exchange (PBX)
45. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Committed Information Rate (CIR)
X.25
Screened Sub-Net
46. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
802.11
Asynchronous Transfer Mode (ATM)
Simplex: One direction.
Ring Topology
47. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
UDP
Circuit Level Proxy Firewall
OSI Layer 3: Network Layer
Spread Spectrum
48. SMTP server that is configured for sending email from any source to and destination.
802.11
Open System Authentication (OSA)
Open Relay
SOCKS Firewall
49. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Private Branch Exchange (PBX)
Packet Switching
Carrier sense multiple access with collision detection (CSMA/CD)
Remote Access Servers
50. 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.
Fiber-optic Cables
Isochronous Communication Processes
Bastion Host
Direct Sequence Spread Spectrum (DSSS)